Analysis
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max time kernel
1791s -
max time network
1608s -
platform
windows10-1703_x64 -
resource
win10-20240221-en -
resource tags
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submitted
16-03-2024 15:49
General
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Target
52b973c029f230ba1049d1438ff7a960exe_JC.exe
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Size
440KB
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MD5
52b973c029f230ba1049d1438ff7a960
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SHA1
c7c8790cd93463fea65921abfb44a5ed81788ab5
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SHA256
a8987722e326199edfa57b05912e962115d7e408ece800b53ed84a78d6a195a6
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SHA512
7b3b7aff02e7e15c557c618abfd243bb3b6510914aa8b2ea1eef76186c2ef7045a3848cded0b4530c67c113824c5b066fbca18df0f8a09e3e76795947d458605
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SSDEEP
6144:LQkAFTZe+DD2/wNvGaNgmQPzSI58KP0Pt8piGijRTGJd9jB:kTFTZFDGwtGigBFeKP0Pt+iGEMTd
Malware Config
Signatures
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Dharma
Dharma is a ransomware that uses security software installation to hide malicious activities.
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Renames multiple (423) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Drops startup file 6 IoCs
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 1 IoCs
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Drops desktop.ini file(s) 64 IoCs
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Drops file in System32 directory 1 IoCs
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Sets desktop wallpaper using registry 2 TTPs 1 IoCs
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Drops file in Program Files directory 64 IoCs
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Interacts with shadow copies 2 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
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Suspicious behavior: EnumeratesProcesses 4 IoCs
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Suspicious use of AdjustPrivilegeToken 3 IoCs
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Suspicious use of WriteProcessMemory 18 IoCs
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Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\52b973c029f230ba1049d1438ff7a960exe_JC.exe"C:\Users\Admin\AppData\Local\Temp\52b973c029f230ba1049d1438ff7a960exe_JC.exe"1⤵
- Drops startup file
- Adds Run key to start application
- Drops desktop.ini file(s)
- Drops file in System32 directory
- Sets desktop wallpaper using registry
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\mode.commode con cp select=12513⤵
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C:\Windows\SysWOW64\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\mode.commode con cp select=12513⤵
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C:\Windows\SysWOW64\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Program Files\Common Files\microsoft shared\ClickToRun\AppvIsvSubsystems32.dll.id-74FFEE87.johnycryptor@hackermail.com.xtblFilesize
2.7MB
MD530abd81021f1bf9e32eb29893c4dd0f3
SHA189b4b186ddfd3f4edbe4bbfc07d40a2d99de5148
SHA256eb4ea5ae4974dcd00155144ee3c7b53ec3e49f039c52611bc29e30fa2b71e672
SHA5121a79c8bdc0f01c5e30f79c427046df41fc565f914d91855e44ecdaafd97180022e05fd6e620b3f1f9b56cf65d680b73dd0f3f37f3993c317e1dbc2693e28879e
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memory/4364-9-0x0000000004B30000-0x0000000004B31000-memory.dmpFilesize
4KB
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memory/4364-10-0x0000000004B30000-0x0000000004B31000-memory.dmpFilesize
4KB
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memory/4364-5-0x0000000004B30000-0x0000000004B31000-memory.dmpFilesize
4KB
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memory/4364-4-0x0000000000400000-0x0000000000473000-memory.dmpFilesize
460KB
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memory/4364-3-0x0000000004B30000-0x0000000004B31000-memory.dmpFilesize
4KB
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memory/4364-7-0x0000000004B30000-0x0000000004B31000-memory.dmpFilesize
4KB
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memory/4364-2-0x0000000002640000-0x00000000026B0000-memory.dmpFilesize
448KB
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memory/4364-0-0x0000000002640000-0x00000000026B0000-memory.dmpFilesize
448KB
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memory/4364-8-0x0000000004B30000-0x0000000004B31000-memory.dmpFilesize
4KB
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memory/4364-11-0x0000000004B30000-0x0000000004B31000-memory.dmpFilesize
4KB
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memory/4364-1-0x0000000004B30000-0x0000000004B31000-memory.dmpFilesize
4KB
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memory/4364-8436-0x0000000000400000-0x0000000000473000-memory.dmpFilesize
460KB
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memory/4364-8437-0x0000000004B30000-0x0000000004B31000-memory.dmpFilesize
4KB
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memory/4364-19097-0x0000000000400000-0x0000000000473000-memory.dmpFilesize
460KB
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memory/4364-21071-0x0000000000400000-0x0000000000473000-memory.dmpFilesize
460KB