colibri | 9f7cf69159e759cb8f750a5d9c20edddde6a758da5293adf36253bc3dd699f71

Analysis

max time kernel
143s
max time network
151s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
05/10/2022, 21:48

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General

Target

AppSetup/Setup.exe
Size

700.0MB
MD5

7c5d1c8213b4f6d0024271fef44e6cd0
SHA1

207849a369dae9a6084850791e0ec53209cc928e
SHA256

bde1ea677730594b57aec1799bb7a51bc1b821ea0f6fa1281127f94cc12445a5
SHA512

d90f3b0054376d642e0d57f68a9cd54f8a29b893dfa4428a3a8280c0c93fc0c441b412a5367865d306a08a36720a9ed186bc290899f7c55341768188b7fa635d
SSDEEP

12288:OGnwnjo3r9nWZQzjFeM6DJOjB9sTTHy832srZZUcCO5x9tWFHeQR8KeHj3Fuxkxv:OC9nYQb6VOcdFz9twRgb6kxChx47B

Score

10^/10

colibri test loader

Malware Config

Extracted

Family

colibri

Version

1.2.0

Botnet

test

http://65.109.7.23/gate.php

Signatures

Colibri Loader
A loader sold as MaaS first seen in August 2021.
loader colibri

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1788 set thread context of 1980	1788	Setup.exe	29

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1928	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1928	powershell.exe
Token: SeDebugPrivilege	1788	Setup.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1788 wrote to memory of 1928	1788	Setup.exe	27
PID 1788 wrote to memory of 1928	1788	Setup.exe	27
PID 1788 wrote to memory of 1928	1788	Setup.exe	27
PID 1788 wrote to memory of 1928	1788	Setup.exe	27
PID 1788 wrote to memory of 1980	1788	Setup.exe	29
PID 1788 wrote to memory of 1980	1788	Setup.exe	29
PID 1788 wrote to memory of 1980	1788	Setup.exe	29
PID 1788 wrote to memory of 1980	1788	Setup.exe	29
PID 1788 wrote to memory of 1980	1788	Setup.exe	29
PID 1788 wrote to memory of 1980	1788	Setup.exe	29
PID 1788 wrote to memory of 1980	1788	Setup.exe	29
PID 1788 wrote to memory of 1980	1788	Setup.exe	29
PID 1788 wrote to memory of 1980	1788	Setup.exe	29
PID 1788 wrote to memory of 1980	1788	Setup.exe	29
PID 1788 wrote to memory of 1980	1788	Setup.exe	29

C:\Users\Admin\AppData\Local\Temp\AppSetup\Setup.exe
"C:\Users\Admin\AppData\Local\Temp\AppSetup\Setup.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1788
- 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
  PID:1928
- C:\Users\Admin\AppData\Local\Temp\AppSetup\Setup.exe
  C:\Users\Admin\AppData\Local\Temp\AppSetup\Setup.exe
  2⤵
  PID:1980

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1788-54-0x0000000076201000-0x0000000076203000-memory.dmp

Filesize
8KB

Download
memory/1788-55-0x0000000001160000-0x000000000132C000-memory.dmp

Filesize
1.8MB

Download
memory/1788-56-0x00000000007A0000-0x0000000000844000-memory.dmp

Filesize
656KB

Download
memory/1788-57-0x0000000004C20000-0x0000000004CB2000-memory.dmp

Filesize
584KB

Download
memory/1928-60-0x000000006DEE0000-0x000000006E48B000-memory.dmp

Filesize
5.7MB

Download
memory/1928-61-0x000000006DEE0000-0x000000006E48B000-memory.dmp

Filesize
5.7MB

Download
memory/1980-62-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1980-63-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1980-65-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1980-66-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1980-69-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1980-70-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download