Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-12-2024 22:39

General

  • Target

    67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.exe

  • Size

    822KB

  • MD5

    17862e1bb7c4b9fb784867e8c65c2e7b

  • SHA1

    3bd7ae06e686c2c9c3895c6bde4486628735964e

  • SHA256

    67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35

  • SHA512

    ea5f85a8aba818c5f40748bb8d8b9157307d8db2f920519d19b27e143df8f31207a0456b554a88da376f8acddb3b12fb351a3b47a6a26ca4bf3d56ecab614457

  • SSDEEP

    12288:9x9KMW9cK0ise8kqkvdmWP9Fe4IUGSq6F9e6NI4Avt+Mbi/NR+/C6sV:9x9KMs8yJe4NGSXM0I/vXinOBsV

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

xaniar.ddns.net:1604

Mutex

DC_MUTEX-GC4NGLU

Attributes
  • InstallPath

    MSDCSC\windows.exe

  • gencode

    aZHDx03jSchl

  • install

    true

  • offline_keylogger

    true

  • password

    111

  • persistence

    false

  • reg_key

    MicroUpdate

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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.

  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.exe
    "C:\Users\Admin\AppData\Local\Temp\67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2956
    • C:\Users\Admin\AppData\Local\Temp\67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE
      "C:\Users\Admin\AppData\Local\Temp\67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE"
      2⤵
      • Modifies WinLogon for persistence
      • Checks computer location settings
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1484
      • C:\Users\Admin\Documents\MSDCSC\windows.exe
        "C:\Users\Admin\Documents\MSDCSC\windows.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3684
        • C:\Users\Admin\Documents\MSDCSC\windows.EXE
          "C:\Users\Admin\Documents\MSDCSC\windows.EXE"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:1388

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\Documents\MSDCSC\windows.exe

    Filesize

    822KB

    MD5

    17862e1bb7c4b9fb784867e8c65c2e7b

    SHA1

    3bd7ae06e686c2c9c3895c6bde4486628735964e

    SHA256

    67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35

    SHA512

    ea5f85a8aba818c5f40748bb8d8b9157307d8db2f920519d19b27e143df8f31207a0456b554a88da376f8acddb3b12fb351a3b47a6a26ca4bf3d56ecab614457

  • memory/1388-142-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1388-140-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1388-134-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1388-133-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1484-57-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1484-139-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1484-60-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1484-59-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1484-58-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1484-56-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2956-26-0x0000000002B80000-0x0000000002B90000-memory.dmp

    Filesize

    64KB

  • memory/2956-42-0x0000000002CB0000-0x0000000002CC0000-memory.dmp

    Filesize

    64KB

  • memory/2956-9-0x0000000002320000-0x0000000002330000-memory.dmp

    Filesize

    64KB

  • memory/2956-24-0x0000000002B60000-0x0000000002B70000-memory.dmp

    Filesize

    64KB

  • memory/2956-23-0x0000000002B50000-0x0000000002B60000-memory.dmp

    Filesize

    64KB

  • memory/2956-22-0x0000000002B40000-0x0000000002B50000-memory.dmp

    Filesize

    64KB

  • memory/2956-21-0x0000000002B30000-0x0000000002B40000-memory.dmp

    Filesize

    64KB

  • memory/2956-3-0x00000000022C0000-0x00000000022D0000-memory.dmp

    Filesize

    64KB

  • memory/2956-27-0x0000000002B90000-0x0000000002BA0000-memory.dmp

    Filesize

    64KB

  • memory/2956-25-0x0000000002B70000-0x0000000002B80000-memory.dmp

    Filesize

    64KB

  • memory/2956-8-0x0000000002310000-0x0000000002320000-memory.dmp

    Filesize

    64KB

  • memory/2956-7-0x0000000002300000-0x0000000002310000-memory.dmp

    Filesize

    64KB

  • memory/2956-5-0x00000000022E0000-0x00000000022F0000-memory.dmp

    Filesize

    64KB

  • memory/2956-4-0x00000000022D0000-0x00000000022E0000-memory.dmp

    Filesize

    64KB

  • memory/2956-2-0x00000000022B0000-0x00000000022C0000-memory.dmp

    Filesize

    64KB

  • memory/2956-1-0x00000000022A0000-0x00000000022B0000-memory.dmp

    Filesize

    64KB

  • memory/2956-0-0x0000000002290000-0x00000000022A0000-memory.dmp

    Filesize

    64KB

  • memory/2956-28-0x0000000002BA0000-0x0000000002BB0000-memory.dmp

    Filesize

    64KB

  • memory/2956-29-0x0000000002BB0000-0x0000000002BC0000-memory.dmp

    Filesize

    64KB

  • memory/2956-30-0x0000000002BC0000-0x0000000002BD0000-memory.dmp

    Filesize

    64KB

  • memory/2956-31-0x0000000002BE0000-0x0000000002BF0000-memory.dmp

    Filesize

    64KB

  • memory/2956-32-0x0000000002C00000-0x0000000002C10000-memory.dmp

    Filesize

    64KB

  • memory/2956-33-0x0000000002C10000-0x0000000002C20000-memory.dmp

    Filesize

    64KB

  • memory/2956-34-0x0000000002C30000-0x0000000002C40000-memory.dmp

    Filesize

    64KB

  • memory/2956-35-0x0000000002C40000-0x0000000002C50000-memory.dmp

    Filesize

    64KB

  • memory/2956-36-0x0000000002C50000-0x0000000002C60000-memory.dmp

    Filesize

    64KB

  • memory/2956-37-0x0000000002C60000-0x0000000002C70000-memory.dmp

    Filesize

    64KB

  • memory/2956-38-0x0000000002C70000-0x0000000002C80000-memory.dmp

    Filesize

    64KB

  • memory/2956-39-0x0000000002C80000-0x0000000002C90000-memory.dmp

    Filesize

    64KB

  • memory/2956-40-0x0000000002C90000-0x0000000002CA0000-memory.dmp

    Filesize

    64KB

  • memory/2956-41-0x0000000002CA0000-0x0000000002CB0000-memory.dmp

    Filesize

    64KB

  • memory/2956-10-0x0000000002330000-0x0000000002340000-memory.dmp

    Filesize

    64KB

  • memory/2956-43-0x0000000002CC0000-0x0000000002CD0000-memory.dmp

    Filesize

    64KB

  • memory/2956-44-0x0000000002CD0000-0x0000000002CE0000-memory.dmp

    Filesize

    64KB

  • memory/2956-45-0x0000000002CE0000-0x0000000002CF0000-memory.dmp

    Filesize

    64KB

  • memory/2956-46-0x0000000002CF0000-0x0000000002D00000-memory.dmp

    Filesize

    64KB

  • memory/2956-47-0x0000000002D00000-0x0000000002D10000-memory.dmp

    Filesize

    64KB

  • memory/2956-48-0x0000000002D10000-0x0000000002D20000-memory.dmp

    Filesize

    64KB

  • memory/2956-49-0x0000000002D20000-0x0000000002D30000-memory.dmp

    Filesize

    64KB

  • memory/2956-50-0x0000000002D30000-0x0000000002D40000-memory.dmp

    Filesize

    64KB

  • memory/2956-52-0x0000000002D50000-0x0000000002D60000-memory.dmp

    Filesize

    64KB

  • memory/2956-53-0x0000000002D60000-0x0000000002D70000-memory.dmp

    Filesize

    64KB

  • memory/2956-51-0x0000000002D40000-0x0000000002D50000-memory.dmp

    Filesize

    64KB

  • memory/2956-20-0x0000000002B20000-0x0000000002B30000-memory.dmp

    Filesize

    64KB

  • memory/2956-17-0x0000000002AF0000-0x0000000002B00000-memory.dmp

    Filesize

    64KB

  • memory/2956-18-0x0000000002B00000-0x0000000002B10000-memory.dmp

    Filesize

    64KB

  • memory/2956-19-0x0000000002B10000-0x0000000002B20000-memory.dmp

    Filesize

    64KB

  • memory/2956-11-0x0000000002340000-0x0000000002350000-memory.dmp

    Filesize

    64KB

  • memory/2956-13-0x0000000002AB0000-0x0000000002AC0000-memory.dmp

    Filesize

    64KB

  • memory/2956-6-0x00000000022F0000-0x0000000002300000-memory.dmp

    Filesize

    64KB

  • memory/2956-12-0x0000000002350000-0x0000000002360000-memory.dmp

    Filesize

    64KB

  • memory/2956-16-0x0000000002AE0000-0x0000000002AF0000-memory.dmp

    Filesize

    64KB

  • memory/2956-15-0x0000000002AD0000-0x0000000002AE0000-memory.dmp

    Filesize

    64KB

  • memory/2956-14-0x0000000002AC0000-0x0000000002AD0000-memory.dmp

    Filesize

    64KB

  • memory/3684-79-0x0000000000620000-0x0000000000630000-memory.dmp

    Filesize

    64KB

  • memory/3684-78-0x0000000000610000-0x0000000000620000-memory.dmp

    Filesize

    64KB

  • memory/3684-73-0x00000000005A0000-0x00000000005B0000-memory.dmp

    Filesize

    64KB

  • memory/3684-74-0x00000000005B0000-0x00000000005C0000-memory.dmp

    Filesize

    64KB

  • memory/3684-75-0x00000000005E0000-0x00000000005F0000-memory.dmp

    Filesize

    64KB

  • memory/3684-76-0x00000000005F0000-0x0000000000600000-memory.dmp

    Filesize

    64KB

  • memory/3684-77-0x0000000000600000-0x0000000000610000-memory.dmp

    Filesize

    64KB