Overview

overview

10

Static

static

10

557e5a41f5...ed.exe

windows7-x64

10

557e5a41f5...ed.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    557e5a41f5e61261452454142d9e847e76bee97c7275525bc11c2b0a1ecb5ced

  • Size

    713KB

  • Sample

    221126-dfj88abc7v

  • MD5

    4e99032cf799aad0a5b32fda617d3498

  • SHA1

    e67deed6bfe806777b04266274713f3ed207fbff

  • SHA256

    557e5a41f5e61261452454142d9e847e76bee97c7275525bc11c2b0a1ecb5ced

  • SHA512

    21aa9b2b080684fb976ce3f1a97b51159feb7a8113e30375ae63ae929b49ef35782755dd4c35b3d5f1c1a4955638532839e31a885e475c8f867c4ba2799453e3

  • SSDEEP

    12288:aKkRlAZIWi9UnAqyYkYIxPzO7/zeGI/l6HijbiPFFJuPLn:asZIWvnAGkYuqbvH7yPj

Score
10/10
darkcometneshtaguest16persistenceratspywarestealertrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

85.93.52.232:1604

Mutex

DC_MUTEX-X9V30LL

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    PMQDeEGAfQts

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

Targets

    • Target

      557e5a41f5e61261452454142d9e847e76bee97c7275525bc11c2b0a1ecb5ced

    • Size

      713KB

    • MD5

      4e99032cf799aad0a5b32fda617d3498

    • SHA1

      e67deed6bfe806777b04266274713f3ed207fbff

    • SHA256

      557e5a41f5e61261452454142d9e847e76bee97c7275525bc11c2b0a1ecb5ced

    • SHA512

      21aa9b2b080684fb976ce3f1a97b51159feb7a8113e30375ae63ae929b49ef35782755dd4c35b3d5f1c1a4955638532839e31a885e475c8f867c4ba2799453e3

    • SSDEEP

      12288:aKkRlAZIWi9UnAqyYkYIxPzO7/zeGI/l6HijbiPFFJuPLn:asZIWvnAGkYuqbvH7yPj

    Score
    10/10
    darkcometneshtaguest16persistenceratspywarestealertrojanupx

    • Darkcomet

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

      trojanratdarkcomet

    • Detect Neshta payload

    • Modifies WinLogon for persistence

      persistence

    • Modifies system executable filetype association

      persistence

    • Neshta

      Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

      persistencespywareneshta

    • Executes dropped EXE

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • Checks computer location settings

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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Change Default File Association

1
T1042

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

3
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Tasks