General

  • Target

    file.exe

  • Size

    602KB

  • Sample

    220902-g8wz9sbha9

  • MD5

    6590c006da1047ab975529d3ed46619a

  • SHA1

    397d8c152fbf0b746aeb7e69141c662297aa9379

  • SHA256

    1c986afb6b41d43bbc3d526dad0629c3903aed6f88e0d4a86014748617dfab5a

  • SHA512

    c9fee15fd842ca4614aea06c48ee51d143b9e4f187c16533762d4cd831910d38e163aaa0c639d72fbb4a3e57d81de31fb58db40c63546cf3a4d609d17bf8ca0f

  • SSDEEP

    6144:KLuAvRbXvC79gVoA550CbeoLFroWiYfQ82bAGpMTO0I6:KLuAv9vo9gVoA57TLiEhGgO8

Malware Config

Extracted

Family

colibri

Version

1.2.0

Botnet

Build1

C2

http://zpltcmgodhvvedxtfcygvbgjkvgvcguygytfigj.cc/gate.php

http://yugyuvyugguitgyuigtfyutdtoghghbbgyv.cx/gate.php

Targets

    • Target

      file.exe

    • Size

      602KB

    • MD5

      6590c006da1047ab975529d3ed46619a

    • SHA1

      397d8c152fbf0b746aeb7e69141c662297aa9379

    • SHA256

      1c986afb6b41d43bbc3d526dad0629c3903aed6f88e0d4a86014748617dfab5a

    • SHA512

      c9fee15fd842ca4614aea06c48ee51d143b9e4f187c16533762d4cd831910d38e163aaa0c639d72fbb4a3e57d81de31fb58db40c63546cf3a4d609d17bf8ca0f

    • SSDEEP

      6144:KLuAvRbXvC79gVoA550CbeoLFroWiYfQ82bAGpMTO0I6:KLuAv9vo9gVoA57TLiEhGgO8

    • Colibri Loader

      A loader sold as MaaS first seen in August 2021.

    • Detectes Phoenix Miner Payload

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

2
T1005

Tasks