Overview

overview

10

Static

static

10

2024-10-10...de.exe

windows7-x64

9

2024-10-10...de.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    146s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/10/2024, 01:22

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General

  • Target
    2024-10-10_a7be144ff0b871ddd45e1e0bef06faa6_darkside.exe
  • Size 146KB
  • Sample241010-brrfkatcme
  • SHA256 22a164ed481ba88df26ce7e819f2240d7fafa5b6ee2cd2993cb5fae3d566be7f
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10
defense_evasiondiscoveryransomwarespywarestealer

Malware Config

Signatures

  • Renames multiple (632) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Drops desktop.ini file(s) 2 IoCs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

    defense_evasion
  • Drops file in System32 directory 4 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
    ransomware
  • Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

    discovery
  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies Control Panel 2 IoCs
    evasion
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 13 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-10-10_a7be144ff0b871ddd45e1e0bef06faa6_darkside.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-10_a7be144ff0b871ddd45e1e0bef06faa6_darkside.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Sets desktop wallpaper using registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:644
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:4388
    • C:\ProgramData\900C.tmp
      "C:\ProgramData\900C.tmp"
      2⤵
      • Checks computer location settings
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:468
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\900C.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3340
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
    1⤵
      PID:3572
    • C:\Windows\system32\printfilterpipelinesvc.exe
      C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
      1⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:436
      • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
        /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{3E3B4121-E538-4C0F-B86D-78933979E9D8}.xps" 133729969884920000
        2⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of SetWindowsHookEx
        PID:3508

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          FFFFFFFFFFF
          • Path C:\$Recycle.Bin\S-1-5-21-493223053-2004649691-1575712786-1000\FFFFFFFFFFF
          • Size 129B
          • SHA256 01b7b671a2b6039aed5fd2eaf79c284cd8f1a51e6d849218d6e2f0b789df320c
          • MD5 SHA1 SHA512
          Submit Download

          OC9oMrMV8.README.txt
          • Path C:\OC9oMrMV8.README.txt
          • Size 343B
          • SHA256 168c71031668b64e0ccf26e81353f6eacb3599edbaf62f7aa62c55b8075a5a8f
          • MD5 SHA1 SHA512
          Submit Download

          900C.tmp
          • Path C:\ProgramData\900C.tmp
          • Size 14KB
          • SHA256 917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
          • Path C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
          • Size 146KB
          • SHA256 c95ed8405aebfc32bed256300561b8890b53e67697cce8ad009ec6ab31ac1d6e
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          {519BC936-5F7E-4F0F-80C3-5C207D1B76E2}
          • Path C:\Users\Admin\AppData\Local\Temp\{519BC936-5F7E-4F0F-80C3-5C207D1B76E2}
          • Size 4KB
          • SHA256 df575bbf81712e86477fd2ac206197cb26b44a5cf2a896f1afa50e855f289f32
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          Open Notebook.onetoc2
          • Path C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2
          • Size 4KB
          • SHA256 7e9006687aef21dcf39c5986cb6e310cd016b8740931741e079189da9f67e25c
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          DDDDDDDDDDD
          • Path F:\$RECYCLE.BIN\S-1-5-21-493223053-2004649691-1575712786-1000\DDDDDDDDDDD
          • Size 129B
          • SHA256 becd3ddce773f713a977c97079ecc3c46451fb8d60fe4fef8b5da471d2e886e0
          • MD5 SHA1 SHA512
          Submit Download

          memory/644-1-0x0000000002860000-0x0000000002870000-memory.dmp
          Download

          memory/644-2-0x0000000002860000-0x0000000002870000-memory.dmp
          Download

          memory/644-2813-0x0000000002860000-0x0000000002870000-memory.dmp
          Download

          memory/644-2812-0x0000000002860000-0x0000000002870000-memory.dmp
          Download

          memory/644-2811-0x0000000002860000-0x0000000002870000-memory.dmp
          Download

          memory/644-0-0x0000000002860000-0x0000000002870000-memory.dmp
          Download

          memory/3508-2831-0x00007FFB462F0000-0x00007FFB46300000-memory.dmp
          Download

          memory/3508-2833-0x00007FFB462F0000-0x00007FFB46300000-memory.dmp
          Download

          memory/3508-2832-0x00007FFB462F0000-0x00007FFB46300000-memory.dmp
          Download

          memory/3508-2862-0x00007FFB44180000-0x00007FFB44190000-memory.dmp
          Download

          memory/3508-2863-0x00007FFB44180000-0x00007FFB44190000-memory.dmp
          Download

          memory/3508-2830-0x00007FFB462F0000-0x00007FFB46300000-memory.dmp
          Download

          memory/3508-2829-0x00007FFB462F0000-0x00007FFB46300000-memory.dmp
          Download