General

  • Target

    9899bfe879105eaddcb0d276d1a625b4.exe

  • Size

    602KB

  • Sample

    220903-met7gagac8

  • MD5

    9899bfe879105eaddcb0d276d1a625b4

  • SHA1

    e4cfc476d04de9b937c5c3257b3ff062db1c26df

  • SHA256

    306f42006639a96d8bf05479958af938f38d07b685621a692f9f72a304d6db00

  • SHA512

    e7770592f4d3973739d96df038ebb8eec357b6c50b46007b24c9332ea8060724091dc2677becd74407cc0755a63593a0718d64c3a467ecb9bab5f2e635c407fb

  • SSDEEP

    6144:loQfoVurk8G6jZG6Yf1Tg1Dk5bX8nrxroJmKNd0y:lPfqu/jlG3wDk8No4KNT

Malware Config

Extracted

Family

colibri

Version

1.2.0

Botnet

Build1

C2

http://zpltcmgodhvvedxtfcygvbgjkvgvcguygytfigj.cc/gate.php

http://yugyuvyugguitgyuigtfyutdtoghghbbgyv.cx/gate.php

Targets

    • Target

      9899bfe879105eaddcb0d276d1a625b4.exe

    • Size

      602KB

    • MD5

      9899bfe879105eaddcb0d276d1a625b4

    • SHA1

      e4cfc476d04de9b937c5c3257b3ff062db1c26df

    • SHA256

      306f42006639a96d8bf05479958af938f38d07b685621a692f9f72a304d6db00

    • SHA512

      e7770592f4d3973739d96df038ebb8eec357b6c50b46007b24c9332ea8060724091dc2677becd74407cc0755a63593a0718d64c3a467ecb9bab5f2e635c407fb

    • SSDEEP

      6144:loQfoVurk8G6jZG6Yf1Tg1Dk5bX8nrxroJmKNd0y:lPfqu/jlG3wDk8No4KNT

    • Colibri Loader

      A loader sold as MaaS first seen in August 2021.

    • 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 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