Overview

overview

10

Static

static

10

cfcec6c8cf...29.exe

windows7-x64

10

cfcec6c8cf...29.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    cfcec6c8cf70f706967aa83596fa301a86685059869e6d5183cd1a6ebd8ef429

  • Size

    28.3MB

  • Sample

    221017-3hhkvadhbl

  • MD5

    668c94eba455cc5ff70d132c321418ec

  • SHA1

    02b9bc9efda3e7d1269a3c6d9dbcb04691a0416c

  • SHA256

    cfcec6c8cf70f706967aa83596fa301a86685059869e6d5183cd1a6ebd8ef429

  • SHA512

    4802bdf6cce94b4fd065affc5ff9470cf9a9892a2963df2567a28390ba3603456173f2571a3ae39ce08dc26b059cea5b2ea35865f732c24230059dbd0582185a

  • SSDEEP

    786432:m5NgWSIq8kjHIVkNXqp5jIqsL9wMkuhVGxxGM+LePAREz+UNK/:mvp9GHIVkNap5jFC+Mkuh+GJLexTi

Score
10/10
darkcometsazanevasionpersistencerattrojanvmprotect

Malware Config

Extracted

Family

darkcomet

Botnet

Sazan

C2

46.1.103.13:1604

Mutex

DC_MUTEX-LFFAWM6

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    8mlW7yUboqwX

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      cfcec6c8cf70f706967aa83596fa301a86685059869e6d5183cd1a6ebd8ef429

    • Size

      28.3MB

    • MD5

      668c94eba455cc5ff70d132c321418ec

    • SHA1

      02b9bc9efda3e7d1269a3c6d9dbcb04691a0416c

    • SHA256

      cfcec6c8cf70f706967aa83596fa301a86685059869e6d5183cd1a6ebd8ef429

    • SHA512

      4802bdf6cce94b4fd065affc5ff9470cf9a9892a2963df2567a28390ba3603456173f2571a3ae39ce08dc26b059cea5b2ea35865f732c24230059dbd0582185a

    • SSDEEP

      786432:m5NgWSIq8kjHIVkNXqp5jIqsL9wMkuhVGxxGM+LePAREz+UNK/:mvp9GHIVkNap5jFC+Mkuh+GJLexTi

    Score
    10/10
    darkcometsazanevasionpersistencerattrojanvmprotect

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies security service

      evasion

    • Windows security bypass

      evasiontrojan

    • Executes dropped EXE

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

      evasion

    • VMProtect packed file

      Detects executables packed with VMProtect commercial packer.

      vmprotect

    • Checks computer location settings

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

    • Loads dropped DLL

    • Windows security modification

      evasiontrojan

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Modify Existing Service

1
T1031

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

6
T1112

Disabling Security Tools

2
T1089

Hidden Files and Directories

2
T1158

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks