General

  • Target

    AE40B1604E91A796697711123B511B4404635B7297C4E.exe

  • Size

    4.9MB

  • Sample

    220912-jptrxacge7

  • MD5

    1ec352f87b2a0f057fad1a1d8fdb4fb0

  • SHA1

    6fde03bf354eb22766eeda3063c5513257723ee6

  • SHA256

    ae40b1604e91a796697711123b511b4404635b7297c4edbf018d2891988ee8cc

  • SHA512

    047835a8ea448330815d796ae77459c667f328bef4f6e0ace9505f9b2cae0f2db9c13582401a53a676c252d8d1d8bfdc09a5fa3f8e2776b03bb55f4a8a080b0f

  • SSDEEP

    98304:I+m3o+rxVmA8OM6KPigiaFfqw1crsT/e3Le7dqc:It42VmhOM6KPNiSqw1cwTu+l

Malware Config

Extracted

Family

colibri

Version

1.2.0

Botnet

Build1

C2

http://zpltcmgodhvvedxtfcygvbgjkvgvcguygytfigj.cc/gate.php

http://yugyuvyugguitgyuigtfyutdtoghghbbgyv.cx/gate.php

Targets

    • Target

      AE40B1604E91A796697711123B511B4404635B7297C4E.exe

    • Size

      4.9MB

    • MD5

      1ec352f87b2a0f057fad1a1d8fdb4fb0

    • SHA1

      6fde03bf354eb22766eeda3063c5513257723ee6

    • SHA256

      ae40b1604e91a796697711123b511b4404635b7297c4edbf018d2891988ee8cc

    • SHA512

      047835a8ea448330815d796ae77459c667f328bef4f6e0ace9505f9b2cae0f2db9c13582401a53a676c252d8d1d8bfdc09a5fa3f8e2776b03bb55f4a8a080b0f

    • SSDEEP

      98304:I+m3o+rxVmA8OM6KPigiaFfqw1crsT/e3Le7dqc:It42VmhOM6KPNiSqw1cwTu+l

    • 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.

    • 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.

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • 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

Scheduled Task

1
T1053

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Tasks