smokeloader | d91912b4b945e88e881e54573390e6723cfc41916b6546453b59e60f9beee337

Analysis

max time kernel
97s
max time network
104s
platform
windows11-21h2_x64
resource
win11-20250502-en
resource tags

arch:x64arch:x86image:win11-20250502-enlocale:en-usos:windows11-21h2-x64system
submitted
04/05/2025, 05:07

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General

Target

2019-09-02_22-41-10.exe
Size

251KB
MD5

924aa6c26f6f43e0893a40728eac3b32
SHA1

baa9b4c895b09d315ed747b3bd087f4583aa84fc
SHA256

30f9db1f5838abb6c1580fdfb7f5dcfd7c2ac8cfac50c2edd0c8415d66212c95
SHA512

3cb6fd659aff46eaa62b0e647ccebeecb070ba0bb27e1cc037b33caf23c417e75f476e1c08e1b5f3b232c4640995ae5afa43bfd09252d318fe5eec0d18de830a
SSDEEP

6144:2E5sHpScP2xeQhp4wGoqPKNDF50AsurB:PsHIiQv4gBNDFiTuF

Score

10^/10

smokeloader backdoor discovery trojan

Malware Config

Signatures

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Smokeloader family
smokeloader

Loads dropped DLL 1 IoCs

pid	Process
1112	2019-09-02_22-41-10.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1852 set thread context of 1112	1852	2019-09-02_22-41-10.exe	78

System Location Discovery: System Language Discovery 1 TTPs 1 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	2019-09-02_22-41-10.exe

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	2019-09-02_22-41-10.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	2019-09-02_22-41-10.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	2019-09-02_22-41-10.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1852 wrote to memory of 1112	1852	2019-09-02_22-41-10.exe	78
PID 1852 wrote to memory of 1112	1852	2019-09-02_22-41-10.exe	78
PID 1852 wrote to memory of 1112	1852	2019-09-02_22-41-10.exe	78
PID 1852 wrote to memory of 1112	1852	2019-09-02_22-41-10.exe	78
PID 1852 wrote to memory of 1112	1852	2019-09-02_22-41-10.exe	78
PID 1852 wrote to memory of 1112	1852	2019-09-02_22-41-10.exe	78

C:\Users\Admin\AppData\Local\Temp\2019-09-02_22-41-10.exe
"C:\Users\Admin\AppData\Local\Temp\2019-09-02_22-41-10.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1852
- C:\Users\Admin\AppData\Local\Temp\2019-09-02_22-41-10.exe
  "C:\Users\Admin\AppData\Local\Temp\2019-09-02_22-41-10.exe"
  2⤵
  - Loads dropped DLL
  - Checks SCSI registry key(s)
  PID:1112

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\D47F.tmp

Filesize
1.6MB

MD5
1cf5669feb127f89f57e8e9d9ac11409

SHA1
d8aaccbbef08cde0161bfbc0f6b7b1e8a1c43d42

SHA256
35f8d721f246ae3e19d204f9bcab3237448ed906a25bba14e7016e5cdd2fc2ce

SHA512
7ebf6cc1a5a0d1ad89666af09bbdd947c02fcb933aeb72c8aff1a378582e38e5c816f806afe87038f10215c3c6c11e50f3226146ba3358e4d6005553cf373b08

Download Submit
memory/1112-3-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/1112-4-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/1112-10-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/1852-1-0x0000000000CB0000-0x0000000000DB0000-memory.dmp

Filesize
1024KB

Download
memory/1852-2-0x0000000000AC0000-0x0000000000ACB000-memory.dmp

Filesize
44KB

Download