colibri | ed28743bfc1a8f95a95e5c6fee5597d6961e497413d8e9b3544588ae7484f3f4

Analysis

max time kernel
148s
max time network
176s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
20/10/2022, 08:44

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General

Target
ED28743BFC1A8F95A95E5C6FEE5597D6961E497413D8E.exe
Size 492KB
Sample221020-knbqdaeaek
SHA256 ed28743bfc1a8f95a95e5c6fee5597d6961e497413d8e9b3544588ae7484f3f4
MD5 81d3017db518b0b252fbc291a5c7d992
SHA1 e05a2679511cc7d307c79b3170f9e8baaf87babc
SHA512 e9380fad8c17727c692c4c661e473be836010d4d456af7a8bb2999153a3c26735e080fa6274a62d2634b0510ecfe4eb4e656234eca2f4a9a03575d959a9cc6bb
SSDEEP 12288:gOfPr+8CHzhgAOt0AcfAWV5CRbdjNA98wl:hfz+NThghUAWVMRRjNJ
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

colibri build1 discovery loader spyware stealer

Malware Config

Extracted

Family

colibri

Version

1.2.0

Botnet

Build1

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
Downloads MZ/PE file

Executes dropped EXE 2 IoCs

pid	Process
4756	tmp126F.tmp.exe
4512	tmp126F.tmp.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	ED28743BFC1A8F95A95E5C6FEE5597D6961E497413D8E.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4756 set thread context of 4512	4756	tmp126F.tmp.exe	84

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
2556	ED28743BFC1A8F95A95E5C6FEE5597D6961E497413D8E.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2556	ED28743BFC1A8F95A95E5C6FEE5597D6961E497413D8E.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2556 wrote to memory of 4756	2556	ED28743BFC1A8F95A95E5C6FEE5597D6961E497413D8E.exe	81
PID 2556 wrote to memory of 4756	2556	ED28743BFC1A8F95A95E5C6FEE5597D6961E497413D8E.exe	81
PID 2556 wrote to memory of 4756	2556	ED28743BFC1A8F95A95E5C6FEE5597D6961E497413D8E.exe	81
PID 4756 wrote to memory of 4512	4756	tmp126F.tmp.exe	84
PID 4756 wrote to memory of 4512	4756	tmp126F.tmp.exe	84
PID 4756 wrote to memory of 4512	4756	tmp126F.tmp.exe	84
PID 4756 wrote to memory of 4512	4756	tmp126F.tmp.exe	84
PID 4756 wrote to memory of 4512	4756	tmp126F.tmp.exe	84
PID 4756 wrote to memory of 4512	4756	tmp126F.tmp.exe	84
PID 4756 wrote to memory of 4512	4756	tmp126F.tmp.exe	84

C:\Users\Admin\AppData\Local\Temp\ED28743BFC1A8F95A95E5C6FEE5597D6961E497413D8E.exe
"C:\Users\Admin\AppData\Local\Temp\ED28743BFC1A8F95A95E5C6FEE5597D6961E497413D8E.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2556
- C:\Users\Admin\AppData\Local\Temp\tmp126F.tmp.exe
  "C:\Users\Admin\AppData\Local\Temp\tmp126F.tmp.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4756
- - C:\Users\Admin\AppData\Local\Temp\tmp126F.tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp126F.tmp.exe"
    3⤵
    - Executes dropped EXE
    PID:4512

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

tmp126F.tmp.exe

Path C:\Users\Admin\AppData\Local\Temp\tmp126F.tmp.exe
Size 74KB
SHA256 dbeb4b5ef3a49b4df0bc816a52f875e5aa6ad674aa8e2b458e9736da0b366ec0
MD5 cdd3d44d9e64a113618961f0a4e691b9
SHA1 a762037bc50ddb7507d5ef1a20ce813ad990bb54
SHA512 55146e6464bf74266520341fae0b097ddfea1d6ed7fadf7e0dcf0eba7ac1c29384ad76f245994ea69f68dc85cdcdcb9fc4a2a1eede5db95001dbcd870505a3d8
SSDEEP 768:Kjc1bfAyp8fZ7g6cAqbjI4bmeuqpdWqzzFNR3u1MjexeaW7xsyUcifjwRmm8onOx:KjWbpaPqo4bCXqzfRrHaWirl0koY
MD5 SHA1 SHA512 SSDEEP

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tmp126F.tmp.exe

Path C:\Users\Admin\AppData\Local\Temp\tmp126F.tmp.exe
Size 74KB
SHA256 dbeb4b5ef3a49b4df0bc816a52f875e5aa6ad674aa8e2b458e9736da0b366ec0
MD5 cdd3d44d9e64a113618961f0a4e691b9
SHA1 a762037bc50ddb7507d5ef1a20ce813ad990bb54
SHA512 55146e6464bf74266520341fae0b097ddfea1d6ed7fadf7e0dcf0eba7ac1c29384ad76f245994ea69f68dc85cdcdcb9fc4a2a1eede5db95001dbcd870505a3d8
SSDEEP 768:Kjc1bfAyp8fZ7g6cAqbjI4bmeuqpdWqzzFNR3u1MjexeaW7xsyUcifjwRmm8onOx:KjWbpaPqo4bCXqzfRrHaWirl0koY
MD5 SHA1 SHA512 SSDEEP

Submit Download

tmp126F.tmp.exe

Path C:\Users\Admin\AppData\Local\Temp\tmp126F.tmp.exe
Size 74KB
SHA256 dbeb4b5ef3a49b4df0bc816a52f875e5aa6ad674aa8e2b458e9736da0b366ec0
MD5 cdd3d44d9e64a113618961f0a4e691b9
SHA1 a762037bc50ddb7507d5ef1a20ce813ad990bb54
SHA512 55146e6464bf74266520341fae0b097ddfea1d6ed7fadf7e0dcf0eba7ac1c29384ad76f245994ea69f68dc85cdcdcb9fc4a2a1eede5db95001dbcd870505a3d8
SSDEEP 768:Kjc1bfAyp8fZ7g6cAqbjI4bmeuqpdWqzzFNR3u1MjexeaW7xsyUcifjwRmm8onOx:KjWbpaPqo4bCXqzfRrHaWirl0koY
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/2556-147-0x000000001C3B0000-0x000000001C3CE000-memory.dmp

Download

memory/2556-132-0x0000000000990000-0x0000000000A12000-memory.dmp

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memory/2556-137-0x000000001CCE0000-0x000000001CD1C000-memory.dmp

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memory/2556-150-0x000000001CD80000-0x000000001CDD0000-memory.dmp

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memory/2556-134-0x00007FFFDEE70000-0x00007FFFDF931000-memory.dmp

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memory/2556-133-0x00007FFFDEE70000-0x00007FFFDF931000-memory.dmp

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memory/2556-136-0x000000001B630000-0x000000001B642000-memory.dmp

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memory/2556-149-0x000000001E510000-0x000000001EA38000-memory.dmp

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memory/2556-148-0x000000001DE10000-0x000000001DFD2000-memory.dmp

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memory/2556-135-0x000000001CDF0000-0x000000001CEFA000-memory.dmp

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memory/2556-146-0x000000001CC60000-0x000000001CCD6000-memory.dmp

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memory/4512-145-0x0000000000400000-0x0000000000407000-memory.dmp

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memory/4512-143-0x0000000000400000-0x0000000000407000-memory.dmp

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memory/4756-141-0x0000000000F71000-0x0000000000F74000-memory.dmp

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