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

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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

Processes:

Setup.exe

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

Processes:

Setup.exe

description pid process target process

PID 368 set thread context of 2516 368 Setup.exe Setup.exe
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

Processes:

powershell.exe

pid process

3436 powershell.exe
3436 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exeSetup.exe

description pid process

Token: SeDebugPrivilege 3436 powershell.exe
Token: SeDebugPrivilege 368 Setup.exe

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

description	pid	process	target process
PID 368 set thread context of 2516	368	Setup.exe	Setup.exe

pid	process
3436	powershell.exe
3436	powershell.exe

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

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

Setup.exe

description	pid	process	target process
PID 368 wrote to memory of 3436	368	Setup.exe	powershell.exe
PID 368 wrote to memory of 3436	368	Setup.exe	powershell.exe
PID 368 wrote to memory of 3436	368	Setup.exe	powershell.exe
PID 368 wrote to memory of 2516	368	Setup.exe	Setup.exe
PID 368 wrote to memory of 2516	368	Setup.exe	Setup.exe
PID 368 wrote to memory of 2516	368	Setup.exe	Setup.exe
PID 368 wrote to memory of 2516	368	Setup.exe	Setup.exe
PID 368 wrote to memory of 2516	368	Setup.exe	Setup.exe
PID 368 wrote to memory of 2516	368	Setup.exe	Setup.exe
PID 368 wrote to memory of 2516	368	Setup.exe	Setup.exe

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 Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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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/2516-146-0x0000000000000000-mapping.dmp

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
memory/3436-138-0x0000000000000000-mapping.dmp

Download