Analysis
- max time kernel
62s - max time network
138s - platform
windows7_x64 - resource
win7-20220414-en - submitted
24/05/2022, 12:20
General
- Target 792536cb7e72e25a03d2b9b2d54027106eb2003ab56f7104cd407f57693cfc2f.exe
- Size 425KB
- Sample220524-ph5hqaabc2
- SHA256 792536cb7e72e25a03d2b9b2d54027106eb2003ab56f7104cd407f57693cfc2f
Malware Config
Extracted
-
colibri
-
1.2.0
-
Build1
-
http://zpltcmgodhvvedxtfcygvbgjkvgvcguygytfigj.cc/gate.php
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http://yugyuvyugguitgyuigtfyutdtoghghbbgyv.cx/gate.php
Signatures
- Colibri Loader
A loader sold as MaaS first seen in August 2021.
- suricata: ET MALWARE Generic gate .php GET with minimal headers
suricata: ET MALWARE Generic gate .php GET with minimal headers
- suricata: ET MALWARE Trojan Generic - POST To gate.php with no accept headers
suricata: ET MALWARE Trojan Generic - POST To gate.php with no accept headers
- suricata: ET MALWARE Trojan Generic - POST To gate.php with no referer
suricata: ET MALWARE Trojan Generic - POST To gate.php with no referer
- suricata: ET MALWARE Win32/Colibri Loader Activity
suricata: ET MALWARE Win32/Colibri Loader Activity
- suricata: ET MALWARE Win32/Colibri Loader Activity M2
suricata: ET MALWARE Win32/Colibri Loader Activity M2
- suricata: ET MALWARE Win32/Colibri Loader Activity M3
suricata: ET MALWARE Win32/Colibri Loader Activity M3
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious use of WriteProcessMemory 12 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\792536cb7e72e25a03d2b9b2d54027106eb2003ab56f7104cd407f57693cfc2f.exe"C:\Users\Admin\AppData\Local\Temp\792536cb7e72e25a03d2b9b2d54027106eb2003ab56f7104cd407f57693cfc2f.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\tmp1DED.tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp1DED.tmp.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe/create /tn COMSurrogate /st 00:00 /du 9999:59 /sc once /ri 1 /f /tr "C:\Users\Admin\Documents\WindowsPowerShell\dllhost.exe"3⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\Documents\WindowsPowerShell\dllhost.exe"C:\Users\Admin\Documents\WindowsPowerShell\dllhost.exe"3⤵
- Executes dropped EXE
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
tmp1DED.tmp.exe
tmp1DED.tmp.exe
dllhost.exe
dllhost.exe
memory/1268-58-0x0000000075501000-0x0000000075503000-memory.dmp
memory/1268-63-0x0000000000860000-0x0000000000876000-memory.dmp
memory/1836-54-0x0000000000850000-0x00000000008BE000-memory.dmp
memory/1836-55-0x0000000000420000-0x000000000045E000-memory.dmp