General
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Target
jjsploit_8.12.2_x64_en-US.msi
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Size
6.3MB
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Sample
250407-fh2mdsyzcz
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MD5
d8be6f14b4dd7a85a5b5479e88b940da
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SHA1
4c1ed04a00fb4fc31cc4c10172d0e6f310faacef
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SHA256
c3daa5b6503c601bf868de990dc5fe055c266a7cba6e269115290c37fb8a4d05
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SHA512
77964855eddaf57ebf7810185eacf2bd40bfdd883473ac063223ea496744d81db678c171707d44cfe19077df1fcfb8888a54021fc6af7cb4547dcc464ce717ea
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SSDEEP
196608:3dNnRdvjsTOvHK19gO8xbecifaCI1L5N1JTLX4:t1RSavI9sbf8vKf
Static task
static1
Behavioral task
behavioral1
Sample
jjsploit_8.12.2_x64_en-US.msi
Resource
win10ltsc2021-20250314-en
Malware Config
Extracted
C:\Users\Admin\Downloads\!Please Read Me!.txt
wannacry
15zGqZCTcys6eCjDkE3DypCjXi6QWRV6V1
Extracted
C:\f2dc0f58\DECRYPT_YOUR_FILES.HTML
Targets
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Target
jjsploit_8.12.2_x64_en-US.msi
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Size
6.3MB
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MD5
d8be6f14b4dd7a85a5b5479e88b940da
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SHA1
4c1ed04a00fb4fc31cc4c10172d0e6f310faacef
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SHA256
c3daa5b6503c601bf868de990dc5fe055c266a7cba6e269115290c37fb8a4d05
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SHA512
77964855eddaf57ebf7810185eacf2bd40bfdd883473ac063223ea496744d81db678c171707d44cfe19077df1fcfb8888a54021fc6af7cb4547dcc464ce717ea
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SSDEEP
196608:3dNnRdvjsTOvHK19gO8xbecifaCI1L5N1JTLX4:t1RSavI9sbf8vKf
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Dharma
Dharma is a ransomware that uses security software installation to hide malicious activities.
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Dharma family
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Fantom family
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Mimikatz family
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Wannacry family
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Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
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Renames multiple (719) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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mimikatz is an open source tool to dump credentials on Windows
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Disables Task Manager via registry modification
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Drops file in Drivers directory
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Credentials from Password Stores: Windows Credential Manager
Suspicious access to Credentials History.
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Drops startup file
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Adds Run key to start application
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Downloads MZ/PE file
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Drops desktop.ini file(s)
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Legitimate hosting services abused for malware hosting/C2
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Drops file in System32 directory
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Sets desktop wallpaper using registry
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MITRE ATT&CK Enterprise v15
Execution
Scheduled Task/Job
1Scheduled Task
1Windows Management Instrumentation
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Installer Packages
1Pre-OS Boot
1Bootkit
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Installer Packages
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Direct Volume Access
1Indicator Removal
2File Deletion
2Modify Registry
2Pre-OS Boot
1Bootkit
1Subvert Trust Controls
1SIP and Trust Provider Hijacking
1System Binary Proxy Execution
1Msiexec
1Credential Access
Credentials from Password Stores
2Credentials from Web Browsers
1Windows Credential Manager
1Unsecured Credentials
1Credentials In Files
1