Analysis
-
max time kernel
149s -
max time network
144s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
-
submitted
31-08-2022 07:10
General
-
Target
83970b7564a4bb507d9d764a747bb4e4.exe
-
Size
433KB
-
MD5
83970b7564a4bb507d9d764a747bb4e4
-
SHA1
baa8dec2502aa980085a0472a6c122bd4af64ea6
-
SHA256
9d33270d80f2ba9d898b0b646dbaade5e1ad2de477e58cfcce74272d60a7473d
-
SHA512
251ddb825041332e89c5edb3fab35a2210f0f0ac6b8868872a44c9d731da446b960ba114226b2bafe71dc85a4c20d1122757660f6f1abd0ecd1821e598a6177b
-
SSDEEP
6144:5Llcs/PqcPPee+4DEZqVUMzuh3AdfLZUwIHccPyOz2bLNARo4ol8FzInD3:3yo4BAdtUwIHfyOuLNmonOBID3
Malware Config
Extracted
colibri
1.2.0
Build1
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 2 IoCs
-
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
-
Adds Run key to start application 2 TTPs 1 IoCs
-
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 64 IoCs
-
Suspicious use of AdjustPrivilegeToken 1 IoCs
-
Suspicious use of WriteProcessMemory 10 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\83970b7564a4bb507d9d764a747bb4e4.exe"C:\Users\Admin\AppData\Local\Temp\83970b7564a4bb507d9d764a747bb4e4.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\tmp7C88.tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp7C88.tmp.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\tmp7C88.tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp7C88.tmp.exe"3⤵
- Executes dropped EXE
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\tmp7C88.tmp.exeFilesize
74KB
MD5cdd3d44d9e64a113618961f0a4e691b9
SHA1a762037bc50ddb7507d5ef1a20ce813ad990bb54
SHA256dbeb4b5ef3a49b4df0bc816a52f875e5aa6ad674aa8e2b458e9736da0b366ec0
SHA51255146e6464bf74266520341fae0b097ddfea1d6ed7fadf7e0dcf0eba7ac1c29384ad76f245994ea69f68dc85cdcdcb9fc4a2a1eede5db95001dbcd870505a3d8
-
C:\Users\Admin\AppData\Local\Temp\tmp7C88.tmp.exeFilesize
74KB
MD5cdd3d44d9e64a113618961f0a4e691b9
SHA1a762037bc50ddb7507d5ef1a20ce813ad990bb54
SHA256dbeb4b5ef3a49b4df0bc816a52f875e5aa6ad674aa8e2b458e9736da0b366ec0
SHA51255146e6464bf74266520341fae0b097ddfea1d6ed7fadf7e0dcf0eba7ac1c29384ad76f245994ea69f68dc85cdcdcb9fc4a2a1eede5db95001dbcd870505a3d8
-
C:\Users\Admin\AppData\Local\Temp\tmp7C88.tmp.exeFilesize
74KB
MD5cdd3d44d9e64a113618961f0a4e691b9
SHA1a762037bc50ddb7507d5ef1a20ce813ad990bb54
SHA256dbeb4b5ef3a49b4df0bc816a52f875e5aa6ad674aa8e2b458e9736da0b366ec0
SHA51255146e6464bf74266520341fae0b097ddfea1d6ed7fadf7e0dcf0eba7ac1c29384ad76f245994ea69f68dc85cdcdcb9fc4a2a1eede5db95001dbcd870505a3d8
-
memory/2524-138-0x0000000000000000-mapping.dmp
-
memory/2524-139-0x0000000000400000-0x0000000000407000-memory.dmpFilesize
28KB
-
memory/2524-141-0x0000000000400000-0x0000000000407000-memory.dmpFilesize
28KB
-
memory/3236-132-0x0000000000FC0000-0x0000000001032000-memory.dmpFilesize
456KB
-
memory/3236-133-0x00007FFC18090000-0x00007FFC18B51000-memory.dmpFilesize
10.8MB
-
memory/3236-142-0x00007FFC18090000-0x00007FFC18B51000-memory.dmpFilesize
10.8MB
-
memory/4824-134-0x0000000000000000-mapping.dmp
-
memory/4824-137-0x0000000000C20000-0x0000000000C23000-memory.dmpFilesize
12KB