General

  • Target

    1fb476576bd4aeb366aa82b6240ff2e8.exe

  • Size

    4MB

  • Sample

    221014-3ettpsehbq

  • MD5

    1fb476576bd4aeb366aa82b6240ff2e8

  • SHA1

    5ae8fba07122131f385bda0274967713d52057db

  • SHA256

    9f487d16cd0e0548b6bde75853d0cfcd4eb9362f61d101ce55740781e3e04b2d

  • SHA512

    360fcce899a22c55235078e3a72fe765fdedfeb9fc2effb3851dd629ea372440ca471dbe748a9e23ad41a3015c372f27a28c239c83abb186024b8c19026ebaa6

  • SSDEEP

    49152:Dl5MTGChZpxtlBBgxchXb/zqP6DUtRgs5q289dAnSz44hnW1XgnYu6fYmPkMSx8E:

Malware Config

Extracted

Family

colibri

Version

1.2.0

Botnet

Build1

C2

http://zpltcmgodhvvedxtfcygvbgjkvgvcguygytfigj.cc/gate.php

http://yugyuvyugguitgyuigtfyutdtoghghbbgyv.cx/gate.php

Targets

    • Target

      1fb476576bd4aeb366aa82b6240ff2e8.exe

    • Size

      4MB

    • MD5

      1fb476576bd4aeb366aa82b6240ff2e8

    • SHA1

      5ae8fba07122131f385bda0274967713d52057db

    • SHA256

      9f487d16cd0e0548b6bde75853d0cfcd4eb9362f61d101ce55740781e3e04b2d

    • SHA512

      360fcce899a22c55235078e3a72fe765fdedfeb9fc2effb3851dd629ea372440ca471dbe748a9e23ad41a3015c372f27a28c239c83abb186024b8c19026ebaa6

    • SSDEEP

      49152:Dl5MTGChZpxtlBBgxchXb/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.

    • Executes dropped EXE

    • Checks computer location settings

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

    • 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

    • Checks whether UAC is enabled

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Bypass User Account Control

1
T1088

Scheduled Task

1
T1053

Defense Evasion

Bypass User Account Control

1
T1088

Disabling Security Tools

1
T1089

Modify Registry

2
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

2
T1005

Tasks