General

  • Target

    file.exe

  • Size

    579KB

  • Sample

    220830-ltyyjagec6

  • MD5

    ed2799ab6e7f6a2b10819ec9be7c81de

  • SHA1

    89e811a0a9312e5454bba40fcb13c9059e37ae80

  • SHA256

    4ab076abc768084e2243b0dde48747392fc5a0297ca340613c7dc8030a050e68

  • SHA512

    b32d0c200935012247f4e560aea314dc9f69258cdcb3ee9debe7914f70a3948339bb2fd3296a36f4013dea05d545b15ba4efa674cb2925f584ce7ba6f8c2bbe7

  • SSDEEP

    6144:ixQkRk2IRy6dKC34DyWzcPvuWke//FU5Qfl:ieWgteyH3uu/FBfl

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

      579KB

    • MD5

      ed2799ab6e7f6a2b10819ec9be7c81de

    • SHA1

      89e811a0a9312e5454bba40fcb13c9059e37ae80

    • SHA256

      4ab076abc768084e2243b0dde48747392fc5a0297ca340613c7dc8030a050e68

    • SHA512

      b32d0c200935012247f4e560aea314dc9f69258cdcb3ee9debe7914f70a3948339bb2fd3296a36f4013dea05d545b15ba4efa674cb2925f584ce7ba6f8c2bbe7

    • SSDEEP

      6144:ixQkRk2IRy6dKC34DyWzcPvuWke//FU5Qfl:ieWgteyH3uu/FBfl

    • 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