Overview

overview

10

Static

static

3

95032903b6...5N.exe

windows7-x64

10

95032903b6...5N.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    95032903b6df10f6031f5be90a8fac3da764c27bf2dbc7d4240ee386c3882cf5N.exe

  • Size

    546KB

  • Sample

    250216-l38t4asmft

  • MD5

    fff30340c3563f1bafb8885c3704f5e0

  • SHA1

    6424aa124cecc9480e70d7e2d51c2d47c3cc6864

  • SHA256

    95032903b6df10f6031f5be90a8fac3da764c27bf2dbc7d4240ee386c3882cf5

  • SHA512

    3911db3c673c38546ed826bbb8446bcfe3841f95711e58c11828418df747c05b39ef09bda4c941f5a8a7d220e70ff4e5c56b4d6b40e0e96f4253985013243bdc

  • SSDEEP

    6144:+TbDkbqcNYS996KFifeVjBpeExgVTFSXFoMc5RhCaL37kGbrKhYcR7tjAeCXTTzE:EbYecW7KEZlPzCy37kGnKhV5qJXTnk1

Score
10/10
darkcomety.s.mdefense_evasiondiscoverypersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

Y.S.M

C2

microsft.redirectme.net:1603

Mutex

DC_MUTEX-UF59SW5

Attributes
  • InstallPath

    MSDCSC\NvidiaaStrreamer.exe

  • gencode

    CSknSw2UGJAw

  • install

    true

  • offline_keylogger

    true

  • password

    01061660256

  • persistence

    true

  • reg_key

    nvdiaxnd

rc4.plain

Targets

    • Target

      95032903b6df10f6031f5be90a8fac3da764c27bf2dbc7d4240ee386c3882cf5N.exe

    • Size

      546KB

    • MD5

      fff30340c3563f1bafb8885c3704f5e0

    • SHA1

      6424aa124cecc9480e70d7e2d51c2d47c3cc6864

    • SHA256

      95032903b6df10f6031f5be90a8fac3da764c27bf2dbc7d4240ee386c3882cf5

    • SHA512

      3911db3c673c38546ed826bbb8446bcfe3841f95711e58c11828418df747c05b39ef09bda4c941f5a8a7d220e70ff4e5c56b4d6b40e0e96f4253985013243bdc

    • SSDEEP

      6144:+TbDkbqcNYS996KFifeVjBpeExgVTFSXFoMc5RhCaL37kGbrKhYcR7tjAeCXTTzE:EbYecW7KEZlPzCy37kGnKhV5qJXTnk1

    Score
    10/10
    darkcomety.s.mdefense_evasiondiscoverypersistencerattrojanupx

    • Darkcomet

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

      trojanratdarkcomet

    • Darkcomet family

      darkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies firewall policy service

      defense_evasion

    • Modifies security service

      defense_evasion

    • Windows security bypass

      defense_evasiontrojan

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Windows security modification

      defense_evasiontrojan

    • Adds Run key to start application

      persistence

    • UPX packed file

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

      upx
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Defense Evasion

Impair Defenses

3
T1562

Disable or Modify System Firewall

1
T1562.004

Disable or Modify Tools

2
T1562.001

Modify Registry

6
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Internet Connection Discovery

1
T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks