Overview

overview

10

Static

static

10

b243cf67bf...1d.exe

windows7_x64

10

b243cf67bf...1d.exe

windows10_x64

10

Sharing

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General

  • Target

    b243cf67bf384a80b8de34c6e8b351bb3f6cbe2c24ef4c7168489ce0bde00e1d

  • Size

    2.5MB

  • Sample

    210518-1m25p5ja4x

  • MD5

    5b5ac97705245c79b7dc5553ea9ef725

  • SHA1

    8c43d1de280dc53dad5c95d765ef78b52a81c62d

  • SHA256

    b243cf67bf384a80b8de34c6e8b351bb3f6cbe2c24ef4c7168489ce0bde00e1d

  • SHA512

    8715ae2dac65df613e5ad5715b4240a947597918caa890e4b1610166f73b75736fb536330d14e6a5fa1395f80fb37ea35aa98bf328a6d1b71354aa789a93443c

Score
10/10
darkcometnjratxmrig777hackedevasionminerpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

777

C2

mywin7man.ddns.net:400

mywin7man.p-e.kr:400
Mutex

DC_MUTEX-ETJWHM7

Attributes
  • InstallPath

    windowscra.exe

  • gencode

    Pi9Netx9cyRC

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

mywin7man.p-e.kr:200

Mutex

7321baaff10c1ea75810eb114d0daa00

Attributes
  • reg_key

    7321baaff10c1ea75810eb114d0daa00

  • splitter

    |'|'|

Targets

    • Target

      b243cf67bf384a80b8de34c6e8b351bb3f6cbe2c24ef4c7168489ce0bde00e1d

    • Size

      2.5MB

    • MD5

      5b5ac97705245c79b7dc5553ea9ef725

    • SHA1

      8c43d1de280dc53dad5c95d765ef78b52a81c62d

    • SHA256

      b243cf67bf384a80b8de34c6e8b351bb3f6cbe2c24ef4c7168489ce0bde00e1d

    • SHA512

      8715ae2dac65df613e5ad5715b4240a947597918caa890e4b1610166f73b75736fb536330d14e6a5fa1395f80fb37ea35aa98bf328a6d1b71354aa789a93443c

    Score
    10/10
    darkcometnjratxmrig777hackedevasionminerpersistencerattrojan

    • Darkcomet

      DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies firewall policy service

      evasion

    • njRAT/Bladabindi

      Widely used RAT written in .NET.

      trojannjrat

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

      minerxmrig

    • Disables RegEdit via registry modification

      evasion

    • Executes dropped EXE

    • Modifies Windows Firewall

      evasion

    • Drops startup file

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Modify Existing Service

2
T1031

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

3
T1112

Credential Access

Discovery

System Information Discovery

2
T1082

Query Registry

1
T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks