General

  • Target

    913240d24664aeeee23dcf389d6f2ce9.exe

  • Size

    602KB

  • Sample

    220903-p8mqlafccn

  • MD5

    913240d24664aeeee23dcf389d6f2ce9

  • SHA1

    730b13fb29347ee478d79195e49977de41ed740f

  • SHA256

    9e5ee80ee0e72b51abc4491e80fb8cf07a9d9c22b083d08f1db24ffae89517dc

  • SHA512

    8a7e73fc3214dccdbea8a5f6a70b40f233719b2a7ce8bd205d3be2f01c93412d788fea071020dbbd76d79c43352fb71f60dab0e8eec18b159d5d0f970ad7bde7

  • SSDEEP

    6144:up/J6DzcxdUf4/p6gj59aG5Ye5fYNYPk30QRyzpGa+IZ:up/J6DzudUw/t9Ge5fYlEQRyzwrG

Malware Config

Extracted

Family

colibri

Version

1.2.0

Botnet

Build1

C2

http://zpltcmgodhvvedxtfcygvbgjkvgvcguygytfigj.cc/gate.php

http://yugyuvyugguitgyuigtfyutdtoghghbbgyv.cx/gate.php

Targets

    • Target

      913240d24664aeeee23dcf389d6f2ce9.exe

    • Size

      602KB

    • MD5

      913240d24664aeeee23dcf389d6f2ce9

    • SHA1

      730b13fb29347ee478d79195e49977de41ed740f

    • SHA256

      9e5ee80ee0e72b51abc4491e80fb8cf07a9d9c22b083d08f1db24ffae89517dc

    • SHA512

      8a7e73fc3214dccdbea8a5f6a70b40f233719b2a7ce8bd205d3be2f01c93412d788fea071020dbbd76d79c43352fb71f60dab0e8eec18b159d5d0f970ad7bde7

    • SSDEEP

      6144:up/J6DzcxdUf4/p6gj59aG5Ye5fYNYPk30QRyzpGa+IZ:up/J6DzudUw/t9Ge5fYlEQRyzwrG

    • 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.

    • Legitimate hosting services abused for malware hosting/C2

    • 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

2
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

Command and Control

Web Service

1
T1102

Tasks