Analysis
- max time kernel
12s - max time network
107s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
24/05/2022, 12:20
General
- Target 35cc13b7eb863c2affc3a0f4ace204049f587291607ee56eea46d306eebc6211.exe
- Size 447KB
- Sample220524-ph3n5aabb6
- SHA256 35cc13b7eb863c2affc3a0f4ace204049f587291607ee56eea46d306eebc6211
Score
10/10
Malware Config
Extracted
Family
-
colibri
Version
-
1.2.0
Botnet
-
Build1
C2
-
http://zpltcmgodhvvedxtfcygvbgjkvgvcguygytfigj.cc/gate.php
-
http://yugyuvyugguitgyuigtfyutdtoghghbbgyv.cx/gate.php
Signatures
- Colibri Loader
A loader sold as MaaS first seen in August 2021.
- Executes dropped EXE 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\35cc13b7eb863c2affc3a0f4ace204049f587291607ee56eea46d306eebc6211.exe"C:\Users\Admin\AppData\Local\Temp\35cc13b7eb863c2affc3a0f4ace204049f587291607ee56eea46d306eebc6211.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\tmp8300.tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp8300.tmp.exe"2⤵
- Executes dropped EXE
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
tmp8300.tmp.exe
tmp8300.tmp.exe
memory/1964-130-0x0000000000560000-0x00000000005D2000-memory.dmp
memory/1964-131-0x00007FFCB0BC0000-0x00007FFCB1681000-memory.dmp
memory/1964-135-0x000000001DE20000-0x000000001DF2A000-memory.dmp
memory/1964-136-0x000000001BC90000-0x000000001BCA2000-memory.dmp
memory/1964-137-0x000000001DD10000-0x000000001DD4C000-memory.dmp
memory/3604-138-0x0000000000490000-0x00000000004A6000-memory.dmp