Analysis

  • max time kernel
    149s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    24-05-2024 09:11

General

  • Target

    ef6832d7f49bb09e6bb239c64b3c6738930cfe71a599bc70a8c62cb570447ff3.exe

  • Size

    658KB

  • MD5

    6d6aceaf5c3f2d9c02d292c15e4ff3d6

  • SHA1

    b92e13064b7693551963909d879f1e9eae57a021

  • SHA256

    ef6832d7f49bb09e6bb239c64b3c6738930cfe71a599bc70a8c62cb570447ff3

  • SHA512

    6a78c45f1dc631f77b2bc5f7e2bc3e7dc31c8aa81f46f549de035616f922c277dce75bf12a710d3be02731e87f649a5cbb36e08226e256a141bad91ba51cfbb9

  • SSDEEP

    12288:i9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hZ:OZ1xuVVjfFoynPaVBUR8f+kN10EBX

Malware Config

Extracted

Family

darkcomet

Botnet

Sazan

C2

127.0.0.1:1604

Mutex

DC_MUTEX-H33CPZ0

Attributes
  • gencode

    oUoFztxq4qF8

  • install

    false

  • offline_keylogger

    true

  • persistence

    false

Signatures

  • Darkcomet

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

  • Modifies firewall policy service 2 TTPs 3 IoCs
  • Disables Task Manager via registry modification
  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of AdjustPrivilegeToken 23 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • System policy modification 1 TTPs 3 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ef6832d7f49bb09e6bb239c64b3c6738930cfe71a599bc70a8c62cb570447ff3.exe
    "C:\Users\Admin\AppData\Local\Temp\ef6832d7f49bb09e6bb239c64b3c6738930cfe71a599bc70a8c62cb570447ff3.exe"
    1⤵
    • Modifies firewall policy service
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:1312
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\ef6832d7f49bb09e6bb239c64b3c6738930cfe71a599bc70a8c62cb570447ff3.exe" +s +h
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1744
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp\ef6832d7f49bb09e6bb239c64b3c6738930cfe71a599bc70a8c62cb570447ff3.exe" +s +h
        3⤵
        • Sets file to hidden
        • Views/modifies file attributes
        PID:2940
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2052
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • Sets file to hidden
        • Views/modifies file attributes
        PID:2592

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Defense Evasion

Modify Registry

2
T1112

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Discovery

System Information Discovery

1
T1082

Replay Monitor

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Downloads

  • memory/1312-0-0x0000000000280000-0x0000000000281000-memory.dmp
    Filesize

    4KB

  • memory/1312-1-0x0000000000400000-0x00000000004B2000-memory.dmp
    Filesize

    712KB

  • memory/1312-2-0x0000000000400000-0x00000000004B2000-memory.dmp
    Filesize

    712KB

  • memory/1312-13-0x0000000000400000-0x00000000004B2000-memory.dmp
    Filesize

    712KB