General

  • Target

    file.exe

  • Size

    602KB

  • Sample

    220901-3cjkyscfgr

  • MD5

    1db9ce2cf416557e3c4815b62e43b31d

  • SHA1

    2afc08f044a15a8812e8181cbe37cf9a39cc8243

  • SHA256

    0f3b262010f9d12dd37b18903be4c3a5de0f20b2e4841efde7d2250bdf660bc5

  • SHA512

    d1ec32569fa80081872960f55d8a029a31bb0eca8fbadc39a5fcfe0f8eb0f296ab52111f024dae29c18b83ab6d4015da864d1944e4d9fdf633d1a0de0c12ae7d

  • SSDEEP

    6144:vY+BkUWnbcgwe8O8FeCxJedUBe1kTEd9:vDkLnbc3e8O2Bxkkwd9

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

      1db9ce2cf416557e3c4815b62e43b31d

    • SHA1

      2afc08f044a15a8812e8181cbe37cf9a39cc8243

    • SHA256

      0f3b262010f9d12dd37b18903be4c3a5de0f20b2e4841efde7d2250bdf660bc5

    • SHA512

      d1ec32569fa80081872960f55d8a029a31bb0eca8fbadc39a5fcfe0f8eb0f296ab52111f024dae29c18b83ab6d4015da864d1944e4d9fdf633d1a0de0c12ae7d

    • SSDEEP

      6144:vY+BkUWnbcgwe8O8FeCxJedUBe1kTEd9:vDkLnbc3e8O2Bxkkwd9

    • 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