Overview

overview

10

Static

static

3

bc87228279...0N.exe

windows7-x64

10

bc87228279...0N.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    bc8722827989573fe2f403b2d3c213a0N.exe

  • Size

    4.9MB

  • Sample

    240904-b4hdestfrd

  • MD5

    bc8722827989573fe2f403b2d3c213a0

  • SHA1

    3a8f8eb369769cefe5c0a96f4248a624e06aeb12

  • SHA256

    ac8f7888a8eb0e6a330da5b997dcadc51f3ac2e1eeba41da02e9bcbf2c76de0b

  • SHA512

    0282e290aa8a9be24044362f753ac3ca761452a5fec9071b9ea70e5db2048a225a2a37329c57e3c5397fd37d0642d1ec235fc9910bb2b0d2c3eea8ed94b78cd0

  • SSDEEP

    49152:rl5MTGChZpxtlBBgxchXb/zqP6DUtRgs5q289dAnSz44hnW1XgnYu6fYmPkMSx8E:

Score
10/10
colibridcratbuild1discoveryevasionexecutioninfostealerloaderrattrojan

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

      bc8722827989573fe2f403b2d3c213a0N.exe

    • Size

      4.9MB

    • MD5

      bc8722827989573fe2f403b2d3c213a0

    • SHA1

      3a8f8eb369769cefe5c0a96f4248a624e06aeb12

    • SHA256

      ac8f7888a8eb0e6a330da5b997dcadc51f3ac2e1eeba41da02e9bcbf2c76de0b

    • SHA512

      0282e290aa8a9be24044362f753ac3ca761452a5fec9071b9ea70e5db2048a225a2a37329c57e3c5397fd37d0642d1ec235fc9910bb2b0d2c3eea8ed94b78cd0

    • SSDEEP

      49152:rl5MTGChZpxtlBBgxchXb/zqP6DUtRgs5q289dAnSz44hnW1XgnYu6fYmPkMSx8E:

    Score
    10/10
    dcratevasionexecutioninfostealerrattrojancolibribuild1discoveryloader

    • Colibri Loader

      A loader sold as MaaS first seen in August 2021.

      loadercolibri

    • DcRat

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

      ratinfostealerdcrat

    • Process spawned unexpected child process

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

    • UAC bypass

      evasiontrojan

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

      rat

    • Command and Scripting Interpreter: PowerShell

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

      execution

    • Checks computer location settings

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

    • Executes dropped EXE

    • Checks whether UAC is enabled

      evasiontrojan

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks