colibri | 9f7cf69159e759cb8f750a5d9c20edddde6a758da5293adf36253bc3dd699f71

Resubmissions

29/11/2022, 17:31

221129-v34ptadd4y 10

06/10/2022, 19:02

221006-xpybzsaegm 10

05/10/2022, 21:49

221005-1pa38sfgc2 10

Analysis

max time kernel
89s
max time network
168s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
29/11/2022, 17:31

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

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

rc4.plain

Signatures

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	Setup.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 368 set thread context of 2516	368	Setup.exe	90

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 2 IoCs

pid	Process
3436	powershell.exe
3436	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3436	powershell.exe
Token: SeDebugPrivilege	368	Setup.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 368 wrote to memory of 3436	368	Setup.exe	88
PID 368 wrote to memory of 3436	368	Setup.exe	88
PID 368 wrote to memory of 3436	368	Setup.exe	88
PID 368 wrote to memory of 2516	368	Setup.exe	90
PID 368 wrote to memory of 2516	368	Setup.exe	90
PID 368 wrote to memory of 2516	368	Setup.exe	90
PID 368 wrote to memory of 2516	368	Setup.exe	90
PID 368 wrote to memory of 2516	368	Setup.exe	90
PID 368 wrote to memory of 2516	368	Setup.exe	90
PID 368 wrote to memory of 2516	368	Setup.exe	90

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
PID:368
- 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:3436
- C:\Users\Admin\AppData\Local\Temp\AppSetup\Setup.exe
  C:\Users\Admin\AppData\Local\Temp\AppSetup\Setup.exe
  2⤵
  PID:2516

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/368-133-0x0000000005520000-0x0000000005AC4000-memory.dmp

Filesize
5.6MB

Download
memory/368-134-0x0000000005110000-0x00000000051A2000-memory.dmp

Filesize
584KB

Download
memory/368-135-0x0000000002B10000-0x0000000002B1A000-memory.dmp

Filesize
40KB

Download
memory/368-136-0x0000000005CD0000-0x0000000005D6C000-memory.dmp

Filesize
624KB

Download
memory/368-137-0x0000000005F90000-0x0000000005FB2000-memory.dmp

Filesize
136KB

Download
memory/368-132-0x00000000004D0000-0x000000000069C000-memory.dmp

Filesize
1.8MB

Download
memory/2516-148-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2516-147-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/3436-140-0x0000000004DD0000-0x00000000053F8000-memory.dmp

Filesize
6.2MB

Download
memory/3436-142-0x0000000004D50000-0x0000000004DB6000-memory.dmp

Filesize
408KB

Download
memory/3436-143-0x0000000005B50000-0x0000000005B6E000-memory.dmp

Filesize
120KB

Download
memory/3436-144-0x0000000007190000-0x000000000780A000-memory.dmp

Filesize
6.5MB

Download
memory/3436-145-0x0000000006050000-0x000000000606A000-memory.dmp

Filesize
104KB

Download
memory/3436-141-0x0000000004C30000-0x0000000004C96000-memory.dmp

Filesize
408KB

Download
memory/3436-139-0x0000000000A10000-0x0000000000A46000-memory.dmp

Filesize
216KB

Download