Overview

overview

10

Static

static

28010a2dd5...a5.exe

windows7-x64

1

28010a2dd5...a5.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    28010a2dd595ab2a304ce1a52af5ee2b7eef12fa5de54a61acd652fc1ae9fca5

  • Size

    827KB

  • Sample

    221030-r4457aegf9

  • MD5

    92e6fb937ab3425941dd24f6d67cbb10

  • SHA1

    ae6fd99b542889e11cd792fa721d5108ac3a886d

  • SHA256

    28010a2dd595ab2a304ce1a52af5ee2b7eef12fa5de54a61acd652fc1ae9fca5

  • SHA512

    04f1751403b62e665f02bf59e6249043165ceeba802667d7c35684436846a80236c75eda04ea84861fa5ea678ab1b85e13cf58b512606711d16c575e52a8a115

  • SSDEEP

    12288:UrAeSyZ4h8Dt8ZyDBBSdk850wrEAVneBXGihqj8MgOj4gGlxjJAu7DK6gFw84:CAZyZlGQBSvuwr3Veh+NzGlxjCuHKRF4

Score
10/10
darkcomethfevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

HF

C2

danielrichie.no-ip.biz:1337

Mutex

DC_MUTEX-W5V5GNQ

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    lgywEcfAGfSj

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      28010a2dd595ab2a304ce1a52af5ee2b7eef12fa5de54a61acd652fc1ae9fca5

    • Size

      827KB

    • MD5

      92e6fb937ab3425941dd24f6d67cbb10

    • SHA1

      ae6fd99b542889e11cd792fa721d5108ac3a886d

    • SHA256

      28010a2dd595ab2a304ce1a52af5ee2b7eef12fa5de54a61acd652fc1ae9fca5

    • SHA512

      04f1751403b62e665f02bf59e6249043165ceeba802667d7c35684436846a80236c75eda04ea84861fa5ea678ab1b85e13cf58b512606711d16c575e52a8a115

    • SSDEEP

      12288:UrAeSyZ4h8Dt8ZyDBBSdk850wrEAVneBXGihqj8MgOj4gGlxjJAu7DK6gFw84:CAZyZlGQBSvuwr3Veh+NzGlxjCuHKRF4

    Score
    10/10
    darkcomethfevasionpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies firewall policy service

      evasion

    • Modifies security service

      evasion

    • Windows security bypass

      evasiontrojan

    • Disables RegEdit via registry modification

      evasion

    • Disables Task Manager via registry modification

      evasion

    • Executes dropped EXE

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

      evasion

    • Checks computer location settings

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

    • Windows security modification

      evasiontrojan

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Modify Existing Service

2
T1031

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

7
T1112

Disabling Security Tools

2
T1089

Hidden Files and Directories

2
T1158

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks