Analysis

  • max time kernel
    150s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-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
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 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 46 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 30 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:3032
    • C:\Users\Admin\AppData\Local\Temp\67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE
      "C:\Users\Admin\AppData\Local\Temp\67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35.EXE"
      2⤵
      • Modifies WinLogon for persistence
      • Loads dropped DLL
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2760
      • 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:2628
        • 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:696

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    822KB

    MD5

    17862e1bb7c4b9fb784867e8c65c2e7b

    SHA1

    3bd7ae06e686c2c9c3895c6bde4486628735964e

    SHA256

    67278e924fbf238c50afb940de4e6ada4a59d31e4a1426f0dc55fcbc861f9f35

    SHA512

    ea5f85a8aba818c5f40748bb8d8b9157307d8db2f920519d19b27e143df8f31207a0456b554a88da376f8acddb3b12fb351a3b47a6a26ca4bf3d56ecab614457

  • memory/696-175-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-169-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2760-62-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2760-60-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2760-58-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2760-64-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2760-56-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2760-174-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2760-78-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2760-79-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2760-77-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/3032-27-0x0000000002640000-0x0000000002650000-memory.dmp

    Filesize

    64KB

  • memory/3032-34-0x00000000026B0000-0x00000000026C0000-memory.dmp

    Filesize

    64KB

  • memory/3032-8-0x0000000000330000-0x0000000000340000-memory.dmp

    Filesize

    64KB

  • memory/3032-7-0x0000000000320000-0x0000000000330000-memory.dmp

    Filesize

    64KB

  • memory/3032-6-0x0000000000310000-0x0000000000320000-memory.dmp

    Filesize

    64KB

  • memory/3032-5-0x0000000000300000-0x0000000000310000-memory.dmp

    Filesize

    64KB

  • memory/3032-4-0x0000000000270000-0x0000000000280000-memory.dmp

    Filesize

    64KB

  • memory/3032-2-0x0000000000240000-0x0000000000250000-memory.dmp

    Filesize

    64KB

  • memory/3032-15-0x0000000000430000-0x0000000000440000-memory.dmp

    Filesize

    64KB

  • memory/3032-16-0x0000000000440000-0x0000000000450000-memory.dmp

    Filesize

    64KB

  • memory/3032-17-0x0000000000450000-0x0000000000460000-memory.dmp

    Filesize

    64KB

  • memory/3032-18-0x0000000000460000-0x0000000000470000-memory.dmp

    Filesize

    64KB

  • memory/3032-19-0x0000000000470000-0x0000000000480000-memory.dmp

    Filesize

    64KB

  • memory/3032-20-0x0000000000480000-0x0000000000490000-memory.dmp

    Filesize

    64KB

  • memory/3032-21-0x0000000000490000-0x00000000004A0000-memory.dmp

    Filesize

    64KB

  • memory/3032-22-0x00000000004E0000-0x00000000004F0000-memory.dmp

    Filesize

    64KB

  • memory/3032-23-0x00000000004F0000-0x0000000000500000-memory.dmp

    Filesize

    64KB

  • memory/3032-24-0x00000000025D0000-0x00000000025E0000-memory.dmp

    Filesize

    64KB

  • memory/3032-25-0x0000000002620000-0x0000000002630000-memory.dmp

    Filesize

    64KB

  • memory/3032-26-0x0000000002630000-0x0000000002640000-memory.dmp

    Filesize

    64KB

  • memory/3032-11-0x00000000003B0000-0x00000000003C0000-memory.dmp

    Filesize

    64KB

  • memory/3032-28-0x0000000002650000-0x0000000002660000-memory.dmp

    Filesize

    64KB

  • memory/3032-29-0x0000000002660000-0x0000000002670000-memory.dmp

    Filesize

    64KB

  • memory/3032-30-0x0000000002670000-0x0000000002680000-memory.dmp

    Filesize

    64KB

  • memory/3032-31-0x0000000002680000-0x0000000002690000-memory.dmp

    Filesize

    64KB

  • memory/3032-32-0x0000000002690000-0x00000000026A0000-memory.dmp

    Filesize

    64KB

  • memory/3032-33-0x00000000026A0000-0x00000000026B0000-memory.dmp

    Filesize

    64KB

  • memory/3032-14-0x00000000003F0000-0x0000000000400000-memory.dmp

    Filesize

    64KB

  • memory/3032-35-0x00000000026C0000-0x00000000026D0000-memory.dmp

    Filesize

    64KB

  • memory/3032-36-0x00000000026D0000-0x00000000026E0000-memory.dmp

    Filesize

    64KB

  • memory/3032-37-0x00000000026E0000-0x00000000026F0000-memory.dmp

    Filesize

    64KB

  • memory/3032-38-0x00000000026F0000-0x0000000002700000-memory.dmp

    Filesize

    64KB

  • memory/3032-39-0x0000000002700000-0x0000000002710000-memory.dmp

    Filesize

    64KB

  • memory/3032-40-0x0000000002710000-0x0000000002720000-memory.dmp

    Filesize

    64KB

  • memory/3032-41-0x0000000002720000-0x0000000002730000-memory.dmp

    Filesize

    64KB

  • memory/3032-42-0x0000000002730000-0x0000000002740000-memory.dmp

    Filesize

    64KB

  • memory/3032-43-0x0000000002740000-0x0000000002750000-memory.dmp

    Filesize

    64KB

  • memory/3032-44-0x0000000002750000-0x0000000002760000-memory.dmp

    Filesize

    64KB

  • memory/3032-45-0x0000000002760000-0x0000000002770000-memory.dmp

    Filesize

    64KB

  • memory/3032-46-0x0000000002770000-0x0000000002780000-memory.dmp

    Filesize

    64KB

  • memory/3032-47-0x0000000002780000-0x0000000002790000-memory.dmp

    Filesize

    64KB

  • memory/3032-48-0x0000000002790000-0x00000000027A0000-memory.dmp

    Filesize

    64KB

  • memory/3032-9-0x0000000000340000-0x0000000000350000-memory.dmp

    Filesize

    64KB

  • memory/3032-0-0x0000000000220000-0x0000000000230000-memory.dmp

    Filesize

    64KB

  • memory/3032-13-0x00000000003E0000-0x00000000003F0000-memory.dmp

    Filesize

    64KB

  • memory/3032-12-0x00000000003D0000-0x00000000003E0000-memory.dmp

    Filesize

    64KB

  • memory/3032-10-0x0000000000390000-0x00000000003A0000-memory.dmp

    Filesize

    64KB

  • memory/3032-3-0x0000000000250000-0x0000000000260000-memory.dmp

    Filesize

    64KB

  • memory/3032-1-0x0000000000230000-0x0000000000240000-memory.dmp

    Filesize

    64KB

  • memory/3032-49-0x00000000027A0000-0x00000000027B0000-memory.dmp

    Filesize

    64KB

  • memory/3032-50-0x00000000027B0000-0x00000000027C0000-memory.dmp

    Filesize

    64KB

  • memory/3032-51-0x00000000027C0000-0x00000000027D0000-memory.dmp

    Filesize

    64KB

  • memory/3032-52-0x00000000027D0000-0x00000000027E0000-memory.dmp

    Filesize

    64KB

  • memory/3032-53-0x00000000027E0000-0x00000000027F0000-memory.dmp

    Filesize

    64KB