Analysis

  • max time kernel
    152s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 13:23

General

  • Target

    add1e6472d8e7694d798eb95aba0bb15105c828c585ae22a173fc0f6b1f0d6bc.exe

  • Size

    838KB

  • MD5

    fd9f795b049b201663898b3b840dec32

  • SHA1

    26b4a2d63443b1ea20afab2bead3da3514f92e35

  • SHA256

    add1e6472d8e7694d798eb95aba0bb15105c828c585ae22a173fc0f6b1f0d6bc

  • SHA512

    df26f973aa106c021e49290e2d949c0e7fea955332838d2f6e8856bde4aa112545413286943d3d9c6a60b16eb5603a693b2a1de103a12608dbb42411c7a9521c

  • SSDEEP

    12288:exy8TP40QeYKbQ4wgMUMDSH+Mf3vW9RLGAcypv69CiGc1uWxU8Fy:UtTP4a1dMDSHytGvMY/qOU

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16_min

C2

customersservicebx.uni.me:2121

Mutex

DCMIN_MUTEX-UZ6AB7L

Attributes
  • gencode

    s8XX3Rqr3xKD

  • install

    false

  • offline_keylogger

    true

  • persistence

    false

Signatures

  • Darkcomet

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

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 2 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 50 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\add1e6472d8e7694d798eb95aba0bb15105c828c585ae22a173fc0f6b1f0d6bc.exe
    "C:\Users\Admin\AppData\Local\Temp\add1e6472d8e7694d798eb95aba0bb15105c828c585ae22a173fc0f6b1f0d6bc.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1644
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1332
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1780
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe
        C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1700
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
          "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:756
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      PID:2008

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

    Filesize

    838KB

    MD5

    fd9f795b049b201663898b3b840dec32

    SHA1

    26b4a2d63443b1ea20afab2bead3da3514f92e35

    SHA256

    add1e6472d8e7694d798eb95aba0bb15105c828c585ae22a173fc0f6b1f0d6bc

    SHA512

    df26f973aa106c021e49290e2d949c0e7fea955332838d2f6e8856bde4aa112545413286943d3d9c6a60b16eb5603a693b2a1de103a12608dbb42411c7a9521c

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

    Filesize

    838KB

    MD5

    fd9f795b049b201663898b3b840dec32

    SHA1

    26b4a2d63443b1ea20afab2bead3da3514f92e35

    SHA256

    add1e6472d8e7694d798eb95aba0bb15105c828c585ae22a173fc0f6b1f0d6bc

    SHA512

    df26f973aa106c021e49290e2d949c0e7fea955332838d2f6e8856bde4aa112545413286943d3d9c6a60b16eb5603a693b2a1de103a12608dbb42411c7a9521c

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe

    Filesize

    7KB

    MD5

    346cc610f2a43754fbd2ad0bd4d67edf

    SHA1

    06fb84bd968978f834820ddfd59075e8d1e21759

    SHA256

    c214b3c08c5abd9c178cb566a6b2beb5026ec1a54197e8bd403d2e3af90e0e74

    SHA512

    eb9fd2dbd7f53b642384311a8f10547c78ae29263cc7d64b3fc2056fb818ddc0c7c80a42d4596c3557a0ac42dcf7d9198f6d742088f7336c4d7868acb52ca940

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe

    Filesize

    7KB

    MD5

    346cc610f2a43754fbd2ad0bd4d67edf

    SHA1

    06fb84bd968978f834820ddfd59075e8d1e21759

    SHA256

    c214b3c08c5abd9c178cb566a6b2beb5026ec1a54197e8bd403d2e3af90e0e74

    SHA512

    eb9fd2dbd7f53b642384311a8f10547c78ae29263cc7d64b3fc2056fb818ddc0c7c80a42d4596c3557a0ac42dcf7d9198f6d742088f7336c4d7868acb52ca940

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe

    Filesize

    7KB

    MD5

    346cc610f2a43754fbd2ad0bd4d67edf

    SHA1

    06fb84bd968978f834820ddfd59075e8d1e21759

    SHA256

    c214b3c08c5abd9c178cb566a6b2beb5026ec1a54197e8bd403d2e3af90e0e74

    SHA512

    eb9fd2dbd7f53b642384311a8f10547c78ae29263cc7d64b3fc2056fb818ddc0c7c80a42d4596c3557a0ac42dcf7d9198f6d742088f7336c4d7868acb52ca940

  • \Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

    Filesize

    838KB

    MD5

    fd9f795b049b201663898b3b840dec32

    SHA1

    26b4a2d63443b1ea20afab2bead3da3514f92e35

    SHA256

    add1e6472d8e7694d798eb95aba0bb15105c828c585ae22a173fc0f6b1f0d6bc

    SHA512

    df26f973aa106c021e49290e2d949c0e7fea955332838d2f6e8856bde4aa112545413286943d3d9c6a60b16eb5603a693b2a1de103a12608dbb42411c7a9521c

  • \Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe

    Filesize

    7KB

    MD5

    346cc610f2a43754fbd2ad0bd4d67edf

    SHA1

    06fb84bd968978f834820ddfd59075e8d1e21759

    SHA256

    c214b3c08c5abd9c178cb566a6b2beb5026ec1a54197e8bd403d2e3af90e0e74

    SHA512

    eb9fd2dbd7f53b642384311a8f10547c78ae29263cc7d64b3fc2056fb818ddc0c7c80a42d4596c3557a0ac42dcf7d9198f6d742088f7336c4d7868acb52ca940

  • memory/756-116-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/756-112-0x000000000048F888-mapping.dmp

  • memory/1332-67-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1332-69-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1332-71-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1332-72-0x000000000048F888-mapping.dmp

  • memory/1332-73-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1332-75-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1332-57-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1332-62-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1332-66-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1332-64-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1332-58-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1332-82-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1332-60-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1332-84-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1644-54-0x0000000075E51000-0x0000000075E53000-memory.dmp

    Filesize

    8KB

  • memory/1644-56-0x0000000074E30000-0x00000000753DB000-memory.dmp

    Filesize

    5.7MB

  • memory/1644-55-0x0000000074E30000-0x00000000753DB000-memory.dmp

    Filesize

    5.7MB

  • memory/1700-87-0x0000000000000000-mapping.dmp

  • memory/1700-90-0x0000000074E30000-0x00000000753DB000-memory.dmp

    Filesize

    5.7MB

  • memory/1700-91-0x0000000074E30000-0x00000000753DB000-memory.dmp

    Filesize

    5.7MB

  • memory/1780-83-0x0000000074E30000-0x00000000753DB000-memory.dmp

    Filesize

    5.7MB

  • memory/1780-81-0x0000000074E30000-0x00000000753DB000-memory.dmp

    Filesize

    5.7MB

  • memory/1780-92-0x0000000074E30000-0x00000000753DB000-memory.dmp

    Filesize

    5.7MB

  • memory/1780-77-0x0000000000000000-mapping.dmp

  • memory/2008-93-0x0000000000000000-mapping.dmp

  • memory/2008-96-0x0000000074E30000-0x00000000753DB000-memory.dmp

    Filesize

    5.7MB

  • memory/2008-117-0x0000000074E30000-0x00000000753DB000-memory.dmp

    Filesize

    5.7MB