Overview

overview

10

Static

static

10

37c85de402...7c.exe

windows7-x64

10

37c85de402...7c.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    37c85de402ab81c7ba222f1125b8482c996d833b64d435e8556c9e7e9ef6ae7c

  • Size

    1.2MB

  • Sample

    221003-tmqmksebg5

  • MD5

    463fc80a8b7127c9a2bee8921a447b20

  • SHA1

    012e76b8f86df7c37d99ebd310cce49941957efd

  • SHA256

    37c85de402ab81c7ba222f1125b8482c996d833b64d435e8556c9e7e9ef6ae7c

  • SHA512

    5260c379e17add48586708543b2c9a17e1cf4b090701bec4ae63f8d1ecf184167dfeb422278c9b68f6be96451bc82e18a55f77dfcd663c9e52b057cd8a733588

  • SSDEEP

    24576:QnAw2WWeFcfbP9VPSPMTSPL/rWvzq4JJfpwoExfLMiLaRmFME3:6ELbVMTrOq49ISVc

Score
10/10
darkcometguest16evasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

lolnoobgg.zapto.org:100

Mutex

DC_MUTEX-NXLVS10

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    e27Kjsz3T8LX

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      37c85de402ab81c7ba222f1125b8482c996d833b64d435e8556c9e7e9ef6ae7c

    • Size

      1.2MB

    • MD5

      463fc80a8b7127c9a2bee8921a447b20

    • SHA1

      012e76b8f86df7c37d99ebd310cce49941957efd

    • SHA256

      37c85de402ab81c7ba222f1125b8482c996d833b64d435e8556c9e7e9ef6ae7c

    • SHA512

      5260c379e17add48586708543b2c9a17e1cf4b090701bec4ae63f8d1ecf184167dfeb422278c9b68f6be96451bc82e18a55f77dfcd663c9e52b057cd8a733588

    • SSDEEP

      24576:QnAw2WWeFcfbP9VPSPMTSPL/rWvzq4JJfpwoExfLMiLaRmFME3:6ELbVMTrOq49ISVc

    Score
    10/10
    darkcometguest16evasionpersistencerattrojan

    • 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.

    • Deletes itself

    • Loads dropped DLL

    • Windows security modification

      evasiontrojan

    • Adds Run key to start application

      persistence

    • 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

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