matiex | 39d7b97907b7836d51b332d85ecdbf4cd5fa55de562959a020a6752adeea4e1c

General

Target

JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe
Size

500KB
MD5

03ba23a85802f57beed2d5c69453c6d2
SHA1

3d83f5623299630fd6f57a567ac048c7d1853dcb
SHA256

39d7b97907b7836d51b332d85ecdbf4cd5fa55de562959a020a6752adeea4e1c
SHA512

028c6edb097565b888589159fb7c8eb92604c333ac58cd075447eb369ae2cd071b85ee0ffdd427ec448fe1b3070adfe26ff5c28482b997a630f8f95b719e2974
SSDEEP

6144:KbCwND4GM89iCb/MN6TeKyzErvWiGJgKJhHgK:Ql4Cbb/MpVKpKJ5gK

Score

10^/10

matiex collection discovery keylogger spyware stealer

Malware Config

Extracted

Family

matiex

C2

https://api.telegram.org/bot1271137457:AAFNGECSqnP1dXVAPgbr-EWVUDbzylXjmhg/sendMessage?chat_id=1216524090

Signatures

Matiex
Matiex is a keylogger and infostealer first seen in July 2020.
stealer keylogger matiex

Matiex Main payload 1 IoCs

resource	yara_rule
behavioral2/memory/5612-33-0x0000000000400000-0x0000000000474000-memory.dmp	family_matiex

Matiex family
matiex

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\nameup.exe	pOwERsHeLl.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\nameup.exe	pOwERsHeLl.exe

Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2329104403-2882594830-3136665766-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe
Key opened	\REGISTRY\USER\S-1-5-21-2329104403-2882594830-3136665766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe
Key opened	\REGISTRY\USER\S-1-5-21-2329104403-2882594830-3136665766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
1	checkip.dyndns.org
1	freegeoip.app
3	freegeoip.app

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5740 set thread context of 5612	5740	JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe	82

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5324	5612	WerFault.exe	82

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pOwERsHeLl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2329104403-2882594830-3136665766-1000_Classes\ms-settings	JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe
Key created	\REGISTRY\USER\S-1-5-21-2329104403-2882594830-3136665766-1000_Classes\ms-settings\shell	JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe
Key created	\REGISTRY\USER\S-1-5-21-2329104403-2882594830-3136665766-1000_Classes\ms-settings\shell\open	JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2329104403-2882594830-3136665766-1000_Classes\ms-settings\shell\open\command\	JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe
Key created	\REGISTRY\USER\S-1-5-21-2329104403-2882594830-3136665766-1000_Classes\ms-settings\shell\open\command	JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
5060	pOwERsHeLl.exe
5060	pOwERsHeLl.exe
5740	JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe
5740	JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	5060	pOwERsHeLl.exe
Token: SeDebugPrivilege	5740	JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe
Token: SeDebugPrivilege	5612	JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 5740 wrote to memory of 5060	5740	JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe	79
PID 5740 wrote to memory of 5060	5740	JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe	79
PID 5740 wrote to memory of 5060	5740	JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe	79
PID 5740 wrote to memory of 4296	5740	JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe	81
PID 5740 wrote to memory of 4296	5740	JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe	81
PID 5740 wrote to memory of 4296	5740	JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe	81
PID 5740 wrote to memory of 5612	5740	JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe	82
PID 5740 wrote to memory of 5612	5740	JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe	82
PID 5740 wrote to memory of 5612	5740	JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe	82
PID 5740 wrote to memory of 5612	5740	JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe	82
PID 5740 wrote to memory of 5612	5740	JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe	82
PID 5740 wrote to memory of 5612	5740	JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe	82
PID 5740 wrote to memory of 5612	5740	JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe	82
PID 5740 wrote to memory of 5612	5740	JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe	82

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2329104403-2882594830-3136665766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2329104403-2882594830-3136665766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5740
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\pOwERsHeLl.exe
  "pOwERsHeLl.exe" Copy-Item 'C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\nameup.exe'
  2⤵
  - Drops startup file
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5060
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe"
  2⤵
  PID:4296
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:5612
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5612 -s 2132
    3⤵
    - Program crash
    PID:5324

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5612 -ip 5612
1⤵
PID:4948

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\JaffaCakes118_03ba23a85802f57beed2d5c69453c6d2.exe.log

Filesize
617B

MD5
68db8dcc44963db5f010030a76ddc90f

SHA1
44bb37a4752cdc2132ab1f2649e2a2f0286e0eb7

SHA256
ad1af1282ba4674f373595a9a98a6e226b1dfe69dd62d9a8bebe1a21aa817a01

SHA512
02958cadcfae4791fa82ef3682c17d8ad7639376d3afe937cb08f9f68261bf3cf745e077559deffe12de88cb1be2934e2dd0acdedaa1669cc117705a0606a3c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1gu1sdo0.4ap.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/5060-21-0x0000000074750000-0x0000000074F01000-memory.dmp

Filesize
7.7MB

Download
memory/5060-31-0x0000000074750000-0x0000000074F01000-memory.dmp

Filesize
7.7MB

Download
memory/5060-23-0x0000000006130000-0x000000000617C000-memory.dmp

Filesize
304KB

Download
memory/5060-27-0x0000000006640000-0x0000000006662000-memory.dmp

Filesize
136KB

Download
memory/5060-6-0x0000000004C80000-0x0000000004CB6000-memory.dmp

Filesize
216KB

Download
memory/5060-8-0x0000000074750000-0x0000000074F01000-memory.dmp

Filesize
7.7MB

Download
memory/5060-7-0x00000000053E0000-0x0000000005A0A000-memory.dmp

Filesize
6.2MB

Download
memory/5060-10-0x0000000005B40000-0x0000000005BA6000-memory.dmp

Filesize
408KB

Download
memory/5060-9-0x0000000005240000-0x0000000005262000-memory.dmp

Filesize
136KB

Download
memory/5060-11-0x0000000005BB0000-0x0000000005C16000-memory.dmp

Filesize
408KB

Download
memory/5060-26-0x00000000065F0000-0x000000000660A000-memory.dmp

Filesize
104KB

Download
memory/5060-20-0x0000000005C20000-0x0000000005F77000-memory.dmp

Filesize
3.3MB

Download
memory/5060-24-0x0000000074750000-0x0000000074F01000-memory.dmp

Filesize
7.7MB

Download
memory/5060-22-0x0000000006100000-0x000000000611E000-memory.dmp

Filesize
120KB

Download
memory/5060-25-0x00000000070D0000-0x0000000007166000-memory.dmp

Filesize
600KB

Download
memory/5612-33-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/5612-41-0x0000000074750000-0x0000000074F01000-memory.dmp

Filesize
7.7MB

Download
memory/5612-40-0x0000000007010000-0x00000000071D2000-memory.dmp

Filesize
1.8MB

Download
memory/5612-36-0x0000000074750000-0x0000000074F01000-memory.dmp

Filesize
7.7MB

Download
memory/5612-39-0x0000000074750000-0x0000000074F01000-memory.dmp

Filesize
7.7MB

Download
memory/5612-38-0x0000000074750000-0x0000000074F01000-memory.dmp

Filesize
7.7MB

Download
memory/5740-5-0x0000000074750000-0x0000000074F01000-memory.dmp

Filesize
7.7MB

Download
memory/5740-32-0x00000000030D0000-0x00000000030E4000-memory.dmp

Filesize
80KB

Download
memory/5740-1-0x0000000000BF0000-0x0000000000C74000-memory.dmp

Filesize
528KB

Download
memory/5740-37-0x0000000074750000-0x0000000074F01000-memory.dmp

Filesize
7.7MB

Download
memory/5740-3-0x0000000005C40000-0x00000000061E6000-memory.dmp

Filesize
5.6MB

Download
memory/5740-4-0x000000007475E000-0x000000007475F000-memory.dmp

Filesize
4KB

Download
memory/5740-2-0x00000000055F0000-0x000000000568C000-memory.dmp

Filesize
624KB

Download
memory/5740-0-0x000000007475E000-0x000000007475F000-memory.dmp

Filesize
4KB

Download

Analysis

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