Analysis
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max time kernel
1790s -
max time network
1567s -
platform
windows7_x64 -
resource
win7-20231129-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 (291) 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 2 IoCs
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Suspicious use of AdjustPrivilegeToken 3 IoCs
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Suspicious use of WriteProcessMemory 24 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:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\OWOW64WW.cab.id-367B8E13.johnycryptor@hackermail.com.xtblFilesize
23.5MB
MD5122c98a6254e9a4819d415cf59ebe0dc
SHA1cc6014e6f64ad0d989056313179e6859430f2d00
SHA256f7cbd3c180a5516cf0b286db9713b2c192a491808beb698fc47e19c4af6d5558
SHA512f441c71194911da2241ac7e1e06248ae694501b45f25bdc5c6ba54d300ae7af6a241413c5bc480d2080871a9f050c6756dbcb6c16a3434df7b9963bc695d20f5
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memory/2032-9-0x0000000004AD0000-0x0000000004AD1000-memory.dmpFilesize
4KB
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memory/2032-7-0x00000000049D0000-0x00000000049D1000-memory.dmpFilesize
4KB
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memory/2032-3-0x00000000049D0000-0x0000000004AD0000-memory.dmpFilesize
1024KB
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memory/2032-4-0x00000000049D0000-0x0000000004AD0000-memory.dmpFilesize
1024KB
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memory/2032-10-0x00000000049D0000-0x00000000049D1000-memory.dmpFilesize
4KB
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memory/2032-5-0x0000000002330000-0x00000000023A0000-memory.dmpFilesize
448KB
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memory/2032-1-0x00000000049D0000-0x00000000049D1000-memory.dmpFilesize
4KB
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memory/2032-0-0x0000000002330000-0x00000000023A0000-memory.dmpFilesize
448KB
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memory/2032-6-0x0000000000400000-0x0000000000473000-memory.dmpFilesize
460KB
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memory/2032-11-0x00000000049D0000-0x00000000049D1000-memory.dmpFilesize
4KB
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memory/2032-2-0x00000000049D0000-0x00000000049D1000-memory.dmpFilesize
4KB
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memory/2032-2293-0x00000000049D0000-0x00000000049D1000-memory.dmpFilesize
4KB
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memory/2032-6167-0x00000000049D0000-0x0000000004AD0000-memory.dmpFilesize
1024KB
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memory/2032-9248-0x0000000000400000-0x0000000000473000-memory.dmpFilesize
460KB
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memory/2032-18335-0x0000000000400000-0x0000000000473000-memory.dmpFilesize
460KB
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memory/2032-18336-0x0000000004AD0000-0x0000000004AD1000-memory.dmpFilesize
4KB