Overview

overview

10

Static

static

10

1d74fad1e7...18.exe

windows7-x64

10

1d74fad1e7...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    1d74fad1e7d34e01d3d775528ef60460_JaffaCakes118

  • Size

    650KB

  • Sample

    240702-z1tt2szbld

  • MD5

    1d74fad1e7d34e01d3d775528ef60460

  • SHA1

    822bc0882d94ff9b2c6396d97dd6ee7c0d0a7356

  • SHA256

    0198e4ece40cebc1f98328360ca69e4b5386c2ff444596b268eb9af4ff137c97

  • SHA512

    27414da752359560068dc533f53e8c58161f4739194f2bbbc8e2a3e5c9989a3e5dfa2a6c137f8465ade8611d7274da2c20bccfd880622e0484c516c8528b0d1e

  • SSDEEP

    12288:bk0QVlhmPojAPTMEsUTg0oChO/Q2JbsbjPbN5qhRTtYe3f+Iw86k/9/+I:Q0QRWoJEfg0oChGdJQbjPbNW5tYeP+GB

Score
10/10
darkcometblowmeevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

blowme

C2

90.207.119.46:443

Mutex

AF48NLA

Attributes
  • InstallPath

    \msdcsc.exe

  • gencode

    roqmzCFsJnuf

  • install

    true

  • offline_keylogger

    true

  • password

    blowmeya

  • persistence

    true

  • reg_key

    update

Targets

    • Target

      1d74fad1e7d34e01d3d775528ef60460_JaffaCakes118

    • Size

      650KB

    • MD5

      1d74fad1e7d34e01d3d775528ef60460

    • SHA1

      822bc0882d94ff9b2c6396d97dd6ee7c0d0a7356

    • SHA256

      0198e4ece40cebc1f98328360ca69e4b5386c2ff444596b268eb9af4ff137c97

    • SHA512

      27414da752359560068dc533f53e8c58161f4739194f2bbbc8e2a3e5c9989a3e5dfa2a6c137f8465ade8611d7274da2c20bccfd880622e0484c516c8528b0d1e

    • SSDEEP

      12288:bk0QVlhmPojAPTMEsUTg0oChO/Q2JbsbjPbN5qhRTtYe3f+Iw86k/9/+I:Q0QRWoJEfg0oChGdJQbjPbNW5tYeP+GB

    Score
    10/10
    darkcometblowmepersistencerattrojanevasion

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies firewall policy service

      evasion

    • Checks computer location settings

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

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Defense Evasion

Modify Registry

3
T1112

Impair Defenses

1
T1562

Disable or Modify System Firewall

1
T1562.004

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Remote System Discovery

1
T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks