Overview

overview

10

Static

static

Purchase O...61.exe

windows7_x64

10

Purchase O...61.exe

windows10_x64

10

Sharing

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General

  • Target

    Purchase Order 461.exe

  • Size

    2.0MB

  • Sample

    210917-qszwnaafaq

  • MD5

    f88cdbcb740a75972cfef27692239991

  • SHA1

    fcdaed8c771069c111afb78bd1d2ebaeb28a6688

  • SHA256

    b6191c6a038f6d49e6941f00ded6a45cf3050ff0a2ecea3a3b3b462dc580f352

  • SHA512

    44265899cd6915a0c637496598b1110f81a3a1a42d5c2c77137bb7745663335f0dc48fa184632226d18294da23a354780009386d6dd6613ad605b5021ff1d8b3

Score
10/10
darkcometseptember 2021evasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

SeptemBER 2021

C2

bonding79.ddns.net:3316

goodgt79.ddns.net:3316

whatis79.ddns.net:3316

smath79.ddns.net:3316

jacknop79.ddns.net:3316

chrisle79.ddns.net:3316
Mutex

DC_MUTEX-6JQTXC0

Attributes
  • gencode

    cVaduGzs7zFu

  • install

    false

  • offline_keylogger

    true

  • password

    Password20$

  • persistence

    false

Targets

    • Target

      Purchase Order 461.exe

    • Size

      2.0MB

    • MD5

      f88cdbcb740a75972cfef27692239991

    • SHA1

      fcdaed8c771069c111afb78bd1d2ebaeb28a6688

    • SHA256

      b6191c6a038f6d49e6941f00ded6a45cf3050ff0a2ecea3a3b3b462dc580f352

    • SHA512

      44265899cd6915a0c637496598b1110f81a3a1a42d5c2c77137bb7745663335f0dc48fa184632226d18294da23a354780009386d6dd6613ad605b5021ff1d8b3

    Score
    10/10
    darkcometseptember 2021evasionpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

      evasion

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

      evasion

    • Uses the VBS compiler for execution

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1
T1064

Persistence

Winlogon Helper DLL

1
T1004

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Virtualization/Sandbox Evasion

2
T1497

Scripting

1
T1064

Credential Access

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks