Resubmissions

15-12-2024 23:12

241215-266f5stlek 10

15-12-2024 23:08

241215-24z7ca1qcs 10

Analysis

  • max time kernel
    211s
  • max time network
    203s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241007-en
  • resource tags

    arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    15-12-2024 23:12

General

  • Target

    627665c1194f64deddc23172808affe3be158d789fadd21a578aacf365e95c00N.exe

  • Size

    923KB

  • MD5

    eae8a05fffd6b4114e5d70c1b4535020

  • SHA1

    39bb907ee415df3bd1a880c5ffeddb739b059d79

  • SHA256

    627665c1194f64deddc23172808affe3be158d789fadd21a578aacf365e95c00

  • SHA512

    a0a8a557e0c44d53deefeb83d5b3d0e7834e3b2219ec06de11062dced32e29cf4fc2e24c97689e1b8e823ed85dfae054157d496e219835a87de88ba395cc9b6d

  • SSDEEP

    24576:Ro2zJs0c7HR29rZXig2kNIKAmvC+Cq5j:Hco9ggFN7L

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16_min

C2

quenlol.no-ip.biz:127

Mutex

DCMIN_MUTEX-PRAANXA

Attributes
  • InstallPath

    DCSCMIN\IMDCSC.exe

  • gencode

    JFuSyZ60x02G

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    DarkComet RAT

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 53 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\627665c1194f64deddc23172808affe3be158d789fadd21a578aacf365e95c00N.exe
    "C:\Users\Admin\AppData\Local\Temp\627665c1194f64deddc23172808affe3be158d789fadd21a578aacf365e95c00N.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2632
    • C:\Users\Admin\AppData\Local\Temp\627665c1194f64deddc23172808affe3be158d789fadd21a578aacf365e95c00N.exe
      C:\Users\Admin\AppData\Local\Temp\627665c1194f64deddc23172808affe3be158d789fadd21a578aacf365e95c00N.exe
      2⤵
      • Modifies WinLogon for persistence
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1148
      • C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
        "C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3352
        • C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
          C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:1048
  • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe
    "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe" -ServerName:MiniSearchUI.AppXj3y73at8fy1htwztzxs68sxx1v7cksp7.mca
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:5252
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:4372
    • C:\Windows\system32\taskmgr.exe
      "C:\Windows\system32\taskmgr.exe" /7
      1⤵
      • Checks SCSI registry key(s)
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:5284

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\TempState\SearchHoverUnifiedTileModelCache.dat

      Filesize

      10KB

      MD5

      eed640164203d0d0a2a1e7919a6fdbdf

      SHA1

      9af74121e090cf2970beee82d22ef4ebb886c0ae

      SHA256

      4ca7fe712b4322fdb497733e015f4ae4496d3998772a6c37305da3cbba3eb7ae

      SHA512

      1bf6de193ae00189525ea9a685bbe3dc7722eceb6ccfb83c70adc766b6301b4978abf73b2f8f41b865f1521925308e4f96285dca569e9c2b2c61e79db1100e3d

    • C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\TempState\SearchHoverUnifiedTileModelCache.dat

      Filesize

      10KB

      MD5

      069c37bf9e39b121efb7a28ece933aee

      SHA1

      eaef2e55b66e543a14a6780c23bb83fe60f2f04d

      SHA256

      485db8db6b497d31d428aceea416da20d88f7bde88dbfd6d59e3e7eee0a75ae8

      SHA512

      f4562071143c2ebc259a20cbb45b133c863f127a5750672b7a2af47783c7cdc56dcf1064ae83f54e5fc0bb4e93826bf2ab4ef6e604f955bf594f2cbd641db796

    • C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe

      Filesize

      923KB

      MD5

      eae8a05fffd6b4114e5d70c1b4535020

      SHA1

      39bb907ee415df3bd1a880c5ffeddb739b059d79

      SHA256

      627665c1194f64deddc23172808affe3be158d789fadd21a578aacf365e95c00

      SHA512

      a0a8a557e0c44d53deefeb83d5b3d0e7834e3b2219ec06de11062dced32e29cf4fc2e24c97689e1b8e823ed85dfae054157d496e219835a87de88ba395cc9b6d

    • memory/1048-90-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/1048-44-0x0000000002370000-0x0000000002371000-memory.dmp

      Filesize

      4KB

    • memory/1048-43-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/1048-41-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/1048-40-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/1048-39-0x0000000002370000-0x0000000002371000-memory.dmp

      Filesize

      4KB

    • memory/1048-38-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/1148-0-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/1148-6-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/1148-12-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/1148-7-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/1148-4-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/1148-8-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/1148-1-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/1148-42-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/1148-2-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/1148-11-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/1148-13-0x0000000002470000-0x0000000002471000-memory.dmp

      Filesize

      4KB

    • memory/2632-10-0x0000000000600000-0x00000000006EE000-memory.dmp

      Filesize

      952KB

    • memory/3352-37-0x0000000000600000-0x00000000006EE000-memory.dmp

      Filesize

      952KB

    • memory/5284-79-0x000001DE2B220000-0x000001DE2B221000-memory.dmp

      Filesize

      4KB

    • memory/5284-78-0x000001DE2B220000-0x000001DE2B221000-memory.dmp

      Filesize

      4KB

    • memory/5284-77-0x000001DE2B220000-0x000001DE2B221000-memory.dmp

      Filesize

      4KB

    • memory/5284-89-0x000001DE2B220000-0x000001DE2B221000-memory.dmp

      Filesize

      4KB

    • memory/5284-88-0x000001DE2B220000-0x000001DE2B221000-memory.dmp

      Filesize

      4KB

    • memory/5284-87-0x000001DE2B220000-0x000001DE2B221000-memory.dmp

      Filesize

      4KB

    • memory/5284-86-0x000001DE2B220000-0x000001DE2B221000-memory.dmp

      Filesize

      4KB

    • memory/5284-85-0x000001DE2B220000-0x000001DE2B221000-memory.dmp

      Filesize

      4KB

    • memory/5284-84-0x000001DE2B220000-0x000001DE2B221000-memory.dmp

      Filesize

      4KB

    • memory/5284-83-0x000001DE2B220000-0x000001DE2B221000-memory.dmp

      Filesize

      4KB