matanbuchus | 3935906e0dd97de6a439dcacab2676d1790c179135bb4e2cb781c95a4ecb0742

Analysis

Target

3935906e0dd97de6a439dcacab2676d1790c179135bb4e2cb781c95a4ecb0742.dll
Size

522KB
MD5

32dcc8ff4729cebbe0b103b77ea9a0b2
SHA1

19ff87a1a773aa282997e2df0820933f6108fbaf
SHA256

3935906e0dd97de6a439dcacab2676d1790c179135bb4e2cb781c95a4ecb0742
SHA512

f99b5ffe0d9f9a3d6a2b61e4c5f14b4f71cc23e4887a7357b124c108ddc3327bcd65b393b1472f4a794ad06eff10babae7369c2010ee1056011d433bc52fba7f

Score

10^/10

Family

matanbuchus

https://belialq449663.at/f5126584-3f68-4e0c-868a-dcb2455f8146/Y2xpbnRvbjQ1.xml

https://belialw869367.at/f5126584-3f68-4e0c-868a-dcb2455f8146/Y2xpbnRvbjQ1.xml

https://beliale232634.at/b0868b6b-7f2c-4ac6-ba54-ba9b13744d17/clinton45.xml

https://belialr878539.at/b0868b6b-7f2c-4ac6-ba54-ba9b13744d17/clinton45.xml

https://belialp632298.at/b0868b6b-7f2c-4ac6-ba54-ba9b13744d17/clinton45.xml

Matanbuchus
A loader sold as MaaS first seen in February 2021.
loader matanbuchus
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1188 2244 WerFault.exe rundll32.exe

pid	pid_target	process	target process
1188	2244	WerFault.exe	rundll32.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 1188 WerFault.exe
Token: SeBackupPrivilege 1188 WerFault.exe
Token: SeDebugPrivilege 1188 WerFault.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2060 wrote to memory of 2244	2060	rundll32.exe	rundll32.exe
PID 2060 wrote to memory of 2244	2060	rundll32.exe	rundll32.exe
PID 2060 wrote to memory of 2244	2060	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3935906e0dd97de6a439dcacab2676d1790c179135bb4e2cb781c95a4ecb0742.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2060
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\3935906e0dd97de6a439dcacab2676d1790c179135bb4e2cb781c95a4ecb0742.dll,#1
  2⤵
  PID:2244
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2244 -s 692
    3⤵
    - Program crash
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1188

memory/2244-115-0x0000000000000000-mapping.dmp

Download
memory/2244-116-0x0000000000660000-0x00000000006E6000-memory.dmp

Filesize
536KB

Download
memory/2244-118-0x0000000000DA0000-0x0000000000DBE000-memory.dmp

Filesize
120KB

Download
memory/2244-117-0x0000000000DA0000-0x0000000000DBE000-memory.dmp

Filesize
120KB

Download
memory/2244-120-0x0000000000C90000-0x0000000000CAF000-memory.dmp

Filesize
124KB

Download
memory/2244-119-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download
memory/2244-121-0x0000000000DA0000-0x0000000000DBE000-memory.dmp

Filesize
120KB

Download