General

  • Target

    76a824876f1d947fb290138a601306849881effd0871fb2d7baf5b7f7922154bN

  • Size

    4.9MB

  • Sample

    241014-fwed1szclc

  • MD5

    028bdc90907407e6347ed647ec3a4520

  • SHA1

    a4666b332fa2086a2367fca57e8f8516f661703f

  • SHA256

    76a824876f1d947fb290138a601306849881effd0871fb2d7baf5b7f7922154b

  • SHA512

    a98b624d5a480fe88d23a0c11f52bf16c9f7631d1f0a4d8eb1255b1da325c8a78b997b75c43d79c6b16a1d9b6704315b931eba826ee0266487b099244a2a852e

  • SSDEEP

    49152:bl5MTGChZpxtlBBgxchXb/zqP6DUtRgs5q289dAnSz44hnW1XgnYu6fYmPkMSx8E:

Malware Config

Extracted

Family

colibri

Version

1.2.0

Botnet

Build1

C2

http://zpltcmgodhvvedxtfcygvbgjkvgvcguygytfigj.cc/gate.php

http://yugyuvyugguitgyuigtfyutdtoghghbbgyv.cx/gate.php

rc4.plain

Targets

    • Target

      76a824876f1d947fb290138a601306849881effd0871fb2d7baf5b7f7922154bN

    • Size

      4.9MB

    • MD5

      028bdc90907407e6347ed647ec3a4520

    • SHA1

      a4666b332fa2086a2367fca57e8f8516f661703f

    • SHA256

      76a824876f1d947fb290138a601306849881effd0871fb2d7baf5b7f7922154b

    • SHA512

      a98b624d5a480fe88d23a0c11f52bf16c9f7631d1f0a4d8eb1255b1da325c8a78b997b75c43d79c6b16a1d9b6704315b931eba826ee0266487b099244a2a852e

    • SSDEEP

      49152:bl5MTGChZpxtlBBgxchXb/zqP6DUtRgs5q289dAnSz44hnW1XgnYu6fYmPkMSx8E:

    • Colibri Loader

      A loader sold as MaaS first seen in August 2021.

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • UAC bypass

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Checks whether UAC is enabled

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks