Resubmissions
29/11/2022, 17:31
221129-v34ptadd4y1006/10/2022, 19:02
221006-xpybzsaegm1005/10/2022, 21:49
221005-1pa38sfgc210Analysis
- max time kernel
89s - max time network
168s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
- submitted
29/11/2022, 17:31
General
- Target AppSetup/Setup.exe
- Size 700.0MB
- Sample221129-v34ptadd4y
- SHA256 bde1ea677730594b57aec1799bb7a51bc1b821ea0f6fa1281127f94cc12445a5
Malware Config
Extracted
-
colibri
-
1.2.0
-
test
-
http://65.109.7.23/gate.php
Signatures
- Colibri Loader
A loader sold as MaaS first seen in August 2021.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 10 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\AppSetup\Setup.exe"C:\Users\Admin\AppData\Local\Temp\AppSetup\Setup.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQA1AA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\AppSetup\Setup.exeC:\Users\Admin\AppData\Local\Temp\AppSetup\Setup.exe2⤵
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/368-133-0x0000000005520000-0x0000000005AC4000-memory.dmp
memory/368-134-0x0000000005110000-0x00000000051A2000-memory.dmp
memory/368-135-0x0000000002B10000-0x0000000002B1A000-memory.dmp
memory/368-136-0x0000000005CD0000-0x0000000005D6C000-memory.dmp
memory/368-137-0x0000000005F90000-0x0000000005FB2000-memory.dmp
memory/368-132-0x00000000004D0000-0x000000000069C000-memory.dmp
memory/2516-148-0x0000000000400000-0x0000000000407000-memory.dmp
memory/2516-147-0x0000000000400000-0x0000000000407000-memory.dmp
memory/3436-140-0x0000000004DD0000-0x00000000053F8000-memory.dmp
memory/3436-142-0x0000000004D50000-0x0000000004DB6000-memory.dmp
memory/3436-143-0x0000000005B50000-0x0000000005B6E000-memory.dmp
memory/3436-144-0x0000000007190000-0x000000000780A000-memory.dmp
memory/3436-145-0x0000000006050000-0x000000000606A000-memory.dmp
memory/3436-141-0x0000000004C30000-0x0000000004C96000-memory.dmp
memory/3436-139-0x0000000000A10000-0x0000000000A46000-memory.dmp