Overview

overview

10

Static

static

10

dropmefile...re.exe

windows10_x64

10

Sharing

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General

  • Target

    dropmefiles.top_Nixware.exe

  • Size

    756KB

  • Sample

    210731-78c4ps4dc6

  • MD5

    a599feb72860abcb8bd95d29aa7424b9

  • SHA1

    9e1ded3db1863e13f6f9a443b3096567cf4108b3

  • SHA256

    d64c2da29df9186c58c5fceb4b2f1dca1c3360c74a342f4a61227e9a97a79d0f

  • SHA512

    40ae7c2516ba1ade6b42eefbbfd9552ae7c42921eb680e7abc001d86bbbebbe3258357b678c7ca2e4ae9ec21dc8fb54dfdc4d9d96728a1e24d78c1be8fd57a67

Score
10/10
darkcometguest16evasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

teposs.ddns.net:7764

Mutex

DC_MUTEX-T8TS3MS

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    u2B4xQoge2Z5

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      dropmefiles.top_Nixware.exe

    • Size

      756KB

    • MD5

      a599feb72860abcb8bd95d29aa7424b9

    • SHA1

      9e1ded3db1863e13f6f9a443b3096567cf4108b3

    • SHA256

      d64c2da29df9186c58c5fceb4b2f1dca1c3360c74a342f4a61227e9a97a79d0f

    • SHA512

      40ae7c2516ba1ade6b42eefbbfd9552ae7c42921eb680e7abc001d86bbbebbe3258357b678c7ca2e4ae9ec21dc8fb54dfdc4d9d96728a1e24d78c1be8fd57a67

    Score
    10/10
    darkcometguest16evasionpersistencerattrojan

    • 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

    • 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
    behavioral1

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

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks