Overview

overview

10

Static

static

10

Java 3.6 Updater.exe

windows7-x64

10

Java 3.6 Updater.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    Java 3.6 Updater.exe

  • Size

    658KB

  • Sample

    220807-y2ntrafgcn

  • MD5

    6b1e5ae13d6e91e1bb604bade8419b2b

  • SHA1

    c1f1f117a06e7b34f9b40117e6d5bb2656d9fcee

  • SHA256

    c7786e3cb22e7a6794d63cd9858ac55429f2bc4942769bcc94ded89ca4f9f0fa

  • SHA512

    34eafa3f3ecf5f10d50b7f6edd37841c051698a851e4c4fd923995fd6e198c87d2d26d8e2af4f236c1349ffc0d4359f2a50fb0c10ab8dffa781e9a4badaad1e9

Score
10/10
darkcometguest16evasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

sussysdfffdfff343.duckdns.org:1604

Mutex

DC_MUTEX-FM3S9H0

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    Vzg3k4UngTzs

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      Java 3.6 Updater.exe

    • Size

      658KB

    • MD5

      6b1e5ae13d6e91e1bb604bade8419b2b

    • SHA1

      c1f1f117a06e7b34f9b40117e6d5bb2656d9fcee

    • SHA256

      c7786e3cb22e7a6794d63cd9858ac55429f2bc4942769bcc94ded89ca4f9f0fa

    • SHA512

      34eafa3f3ecf5f10d50b7f6edd37841c051698a851e4c4fd923995fd6e198c87d2d26d8e2af4f236c1349ffc0d4359f2a50fb0c10ab8dffa781e9a4badaad1e9

    Score
    10/10
    darkcometguest16evasionpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • 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.

    • Loads dropped DLL

    • 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

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

2
T1112

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