colibri | 31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91

General

Target

31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe
Size

602KB
MD5

533a75352e7692b34a28738a67915adf
SHA1

f58115604020a34ad5a3853c9e91f957fae3021a
SHA256

31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91
SHA512

aff91444a99ca1663ffee7c42060e47bcd830b2acdc7791fb468fa581295c398c97fc7b63e2e38f0c85ae2c61bf831ec70fc3e49b8af5fce56eee33f7e73ba5b
SSDEEP

12288:8aHNwhpywQ4NNFNS1I5wWOXfVVIiOsTmddebmxNkV1GWcfAQwPStrWliGYQJo:N/fOLBGYQJ

Score

10^/10

colibri build1 loader persistence

Malware Config

Extracted

Family

colibri

Version

1.2.0

Botnet

Build1

C2

http://zpltcmgodhvvedxtfcygvbgjkvgvcguygytfigj.cc/gate.php

http://yugyuvyugguitgyuigtfyutdtoghghbbgyv.cx/gate.php

Signatures

Colibri Loader
A loader sold as MaaS first seen in August 2021.
loader colibri
Executes dropped EXE 2 IoCs

Processes:

conhost.execonhost.exe

pid process

2248 conhost.exe
4180 conhost.exe
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:

cmd.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation cmd.exe

pid	process
2248	conhost.exe
4180	conhost.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	cmd.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSEdge = "C:\\Users\\Admin\\AppData\\Roaming\\MSEdge\\msedge.exe"	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

conhost.exe31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe

description	pid	process	target process
PID 2248 set thread context of 4180	2248	conhost.exe	conhost.exe
PID 1952 set thread context of 4564	1952	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe
PID 4564 set thread context of 4828	4564	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe

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

System Information Discovery
T1082
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

cmd.exe

pid process

3060 cmd.exe

pid	process
3060	cmd.exe

Suspicious use of WriteProcessMemory 35 IoCs

Processes:

31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.execonhost.exe31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe

C:\Users\Admin\AppData\Local\Temp\31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe
"C:\Users\Admin\AppData\Local\Temp\31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4788

C:\ProgramData\conhost.exe
"C:\ProgramData\conhost.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2248

C:\ProgramData\conhost.exe
"C:\ProgramData\conhost.exe"
3⤵
- Executes dropped EXE
PID:4180

C:\Users\Admin\AppData\Local\Temp\31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe
"C:\Users\Admin\AppData\Local\Temp\31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1952

C:\Users\Admin\AppData\Local\Temp\31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe
"C:\Users\Admin\AppData\Local\Temp\31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4564

C:\Users\Admin\AppData\Local\Temp\31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe
"C:\Users\Admin\AppData\Local\Temp\31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe"
4⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4828

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c start C:\Users\Admin\AppData\Roaming\MSEdge\msedge.exe
5⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
PID:3060

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\ProgramData\conhost.exe
Filesize
75KB

MD5
e0a68b98992c1699876f818a22b5b907

SHA1
d41e8ad8ba51217eb0340f8f69629ccb474484d0

SHA256
2b00d8c2bcc6b48e90524cdd41a07735dc94548ed41925baff86e43a61a4c37f

SHA512
856854f5fd89ae1669e4b2db10b73b4a78496bf80117003244c83e781f75e533e2e2bea9aa6c1b3aba3db1ed92ea0ed9755fbfd78cd6c86ba95867d07fc0ece2

Download Submit
C:\ProgramData\conhost.exe
Filesize
75KB

MD5
e0a68b98992c1699876f818a22b5b907

SHA1
d41e8ad8ba51217eb0340f8f69629ccb474484d0

SHA256
2b00d8c2bcc6b48e90524cdd41a07735dc94548ed41925baff86e43a61a4c37f

SHA512
856854f5fd89ae1669e4b2db10b73b4a78496bf80117003244c83e781f75e533e2e2bea9aa6c1b3aba3db1ed92ea0ed9755fbfd78cd6c86ba95867d07fc0ece2

Download Submit
C:\ProgramData\conhost.exe
Filesize
75KB

MD5
e0a68b98992c1699876f818a22b5b907

SHA1
d41e8ad8ba51217eb0340f8f69629ccb474484d0

SHA256
2b00d8c2bcc6b48e90524cdd41a07735dc94548ed41925baff86e43a61a4c37f

SHA512
856854f5fd89ae1669e4b2db10b73b4a78496bf80117003244c83e781f75e533e2e2bea9aa6c1b3aba3db1ed92ea0ed9755fbfd78cd6c86ba95867d07fc0ece2

Download Submit
memory/1952-140-0x0000000000838000-0x000000000084B000-memory.dmp

Filesize
76KB

Download
memory/1952-136-0x0000000000000000-mapping.dmp

Download
memory/2248-132-0x0000000000000000-mapping.dmp

Download
memory/3060-160-0x0000000000000000-mapping.dmp

Download
memory/4180-139-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/4180-137-0x0000000000000000-mapping.dmp

Download
memory/4180-159-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/4564-153-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/4564-142-0x0000000000000000-mapping.dmp

Download
memory/4564-143-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/4564-145-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/4564-144-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/4564-146-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/4788-138-0x0000000000728000-0x000000000072A000-memory.dmp

Filesize
8KB

Download
memory/4788-133-0x00000000007F5000-0x0000000000808000-memory.dmp

Filesize
76KB

Download
memory/4828-150-0x0000000000E50000-0x0000000000E86000-memory.dmp

Filesize
216KB

Download
memory/4828-155-0x0000000000E50000-0x0000000000E86000-memory.dmp

Filesize
216KB

Download
memory/4828-158-0x0000000000E50000-0x0000000000E86000-memory.dmp

Filesize
216KB

Download
memory/4828-149-0x0000000000000000-mapping.dmp

Download

description	pid	process	target process
PID 4788 wrote to memory of 2248	4788	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe	conhost.exe
PID 4788 wrote to memory of 2248	4788	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe	conhost.exe
PID 4788 wrote to memory of 2248	4788	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe	conhost.exe
PID 2248 wrote to memory of 4180	2248	conhost.exe	conhost.exe
PID 2248 wrote to memory of 4180	2248	conhost.exe	conhost.exe
PID 2248 wrote to memory of 4180	2248	conhost.exe	conhost.exe
PID 4788 wrote to memory of 1952	4788	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe
PID 4788 wrote to memory of 1952	4788	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe
PID 4788 wrote to memory of 1952	4788	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe
PID 2248 wrote to memory of 4180	2248	conhost.exe	conhost.exe
PID 2248 wrote to memory of 4180	2248	conhost.exe	conhost.exe
PID 2248 wrote to memory of 4180	2248	conhost.exe	conhost.exe
PID 2248 wrote to memory of 4180	2248	conhost.exe	conhost.exe
PID 1952 wrote to memory of 4564	1952	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe
PID 1952 wrote to memory of 4564	1952	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe
PID 1952 wrote to memory of 4564	1952	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe
PID 1952 wrote to memory of 4564	1952	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe
PID 1952 wrote to memory of 4564	1952	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe
PID 1952 wrote to memory of 4564	1952	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe
PID 1952 wrote to memory of 4564	1952	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe
PID 1952 wrote to memory of 4564	1952	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe
PID 1952 wrote to memory of 4564	1952	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe
PID 1952 wrote to memory of 4564	1952	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe
PID 4564 wrote to memory of 4828	4564	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe
PID 4564 wrote to memory of 4828	4564	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe
PID 4564 wrote to memory of 4828	4564	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe
PID 4564 wrote to memory of 4828	4564	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe
PID 4564 wrote to memory of 4828	4564	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe
PID 4564 wrote to memory of 4828	4564	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe
PID 4564 wrote to memory of 4828	4564	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe
PID 4564 wrote to memory of 4828	4564	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe
PID 4564 wrote to memory of 4828	4564	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe
PID 4828 wrote to memory of 3060	4828	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe	cmd.exe
PID 4828 wrote to memory of 3060	4828	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe	cmd.exe
PID 4828 wrote to memory of 3060	4828	31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91.exe	cmd.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads