Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/06/2024, 05:59

General

  • Target
    b206cdd2aef6f364573fbf44f436f668_JaffaCakes118.exe
  • Size 10.0MB
  • Sample240616-gp86gswdrj
  • SHA256 261f20fbeb4c9a65df917022ded317dda7934ddba37936423833c4060f2bc884
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 10 IoCs
  • Creates a large amount of network flows 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Detects Pyinstaller 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Kills process with taskkill 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 11 IoCs
  • Suspicious use of WriteProcessMemory 45 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b206cdd2aef6f364573fbf44f436f668_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\b206cdd2aef6f364573fbf44f436f668_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2896
    • C:\Windows\SysWOW64\taskkill.exe
      "C:\Windows\System32\taskkill.exe" /IM rundll.exe /F
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:904
    • C:\Windows\SysWOW64\taskkill.exe
      "C:\Windows\System32\taskkill.exe" /IM rundll.exe /F
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:5012
    • C:\Windows\SysWOW64\taskkill.exe
      "C:\Windows\System32\taskkill.exe" /IM rundll.exe /F
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:4868
    • C:\Windows\SysWOW64\taskkill.exe
      "C:\Windows\System32\taskkill.exe" /IM rundll.exe /F
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:1272
    • C:\Windows\SysWOW64\taskkill.exe
      "C:\Windows\System32\taskkill.exe" /IM rundll.exe /F
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:556
    • C:\Windows\SysWOW64\taskkill.exe
      "C:\Windows\System32\taskkill.exe" /IM ss.exe /F
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:1616
    • C:\Windows\SysWOW64\taskkill.exe
      "C:\Windows\System32\taskkill.exe" /IM ss.exe /F
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:3688
    • C:\Windows\SysWOW64\taskkill.exe
      "C:\Windows\System32\taskkill.exe" /IM ss.exe /F
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:5020
    • C:\Windows\SysWOW64\taskkill.exe
      "C:\Windows\System32\taskkill.exe" /IM ss.exe /F
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:3780
    • C:\Windows\SysWOW64\taskkill.exe
      "C:\Windows\System32\taskkill.exe" /IM Eternalblue-2.2.0.exe /F
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:1708
    • C:\Windows\SysWOW64\taskkill.exe
      "C:\Windows\System32\taskkill.exe" /IM Doublepulsar-1.3.1.exe /F
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:1768
    • C:\Users\Admin\AppData\Local\Temp\RarSFX0\rundll.exe
      "C:\Users\Admin\AppData\Local\Temp\RarSFX0\rundll.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:5088
      • C:\Users\Admin\AppData\Local\Temp\RarSFX0\rundll.exe
        "C:\Users\Admin\AppData\Local\Temp\RarSFX0\rundll.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:4960
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c "ss.exe TCP 10.127.0.87/14 445 200 /save"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:4656
          • C:\Users\Admin\AppData\Local\Temp\RarSFX0\ss.exe
            ss.exe TCP 10.127.0.87/14 445 200 /save
            5⤵
            • Executes dropped EXE
            PID:3960

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        Result.txt

        • Path C:\Users\Admin\AppData\Local\Temp\RarSFX0\Result.txt
        • Size 174B
        • SHA256 90ce5006f1052397566a00c16726f2eb49520d7ea445323178d8a46ca2d41588
        • MD5 SHA1 SHA512

        rundll.exe

        • Path C:\Users\Admin\AppData\Local\Temp\RarSFX0\rundll.exe
        • Size 6.4MB
        • SHA256 5b222f52c27375a6ca9342a6f1483b46101c5c3dbd82b453cb046a6109e5a48f
        • MD5 SHA1 SHA512 SSDEEP

        ss.exe

        • Path C:\Users\Admin\AppData\Local\Temp\RarSFX0\ss.exe
        • Size 14KB
        • SHA256 1328bd220d9b4baa8a92b8d3f42f0d123762972d1dfc4b1fd4b4728d67b01dfc
        • MD5 SHA1 SHA512 SSDEEP

        python27.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI50882\python27.dll
        • Size 2.5MB
        • SHA256 65a063a0b44746f382e9669563b29f4ae66b7bf3416c7fa5879a06b70ea9bb40
        • MD5 SHA1 SHA512 SSDEEP

        rundll2.exe.manifest

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI50882\rundll2.exe.manifest
        • Size 1KB
        • SHA256 640c93fdfd11ae88d39b79dd2d2a30070cea8a7bb68972c61ab820e5e5bce7e0
        • MD5 SHA1 SHA512

        select.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI50882\select.pyd
        • Size 10KB
        • SHA256 83b5c76d938bc50e58c851d56ef8cbc1001d2e81a1e1f8f5dfed2245244c1472
        • MD5 SHA1 SHA512 SSDEEP

        _cffi_backend.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI50~1\_cffi_backend.pyd
        • Size 127KB
        • SHA256 8a13b0e4f0cabe636cccbb41cbecd0266dae870ffa23a5ec19a99105c2849f25
        • MD5 SHA1 SHA512 SSDEEP

        _ctypes.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI50~1\_ctypes.pyd
        • Size 89KB
        • SHA256 030bf1aaff316dfbb1b424d91b1340b331c2e38f3e874ae532284c6170d93e7e
        • MD5 SHA1 SHA512 SSDEEP

        _hashlib.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI50~1\_hashlib.pyd
        • Size 993KB
        • SHA256 8dceafaaec28740385b1cb8cf2655db68ecf2e561053bfe494795019542491e4
        • MD5 SHA1 SHA512 SSDEEP

        _socket.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI50~1\_socket.pyd
        • Size 45KB
        • SHA256 36a7dd2596598916384044b680d62fc7369d246703a57178c27c74214a78585f
        • MD5 SHA1 SHA512 SSDEEP

        _ssl.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI50~1\_ssl.pyd
        • Size 1.3MB
        • SHA256 ae14e8d2ac9adbbb1c1d2a8001a017ba577663322fe7606c22bc0081d2764bc9
        • MD5 SHA1 SHA512 SSDEEP

        cryptography.hazmat.bindings._constant_time.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI50~1\cryptography.hazmat.bindings._constant_time.pyd
        • Size 7KB
        • SHA256 4e2476c24f65c9fcbfbd1281569ebbf95f69e10f54b1209d9b5487e75b421e0a
        • MD5 SHA1 SHA512 SSDEEP

        cryptography.hazmat.bindings._openssl.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI50~1\cryptography.hazmat.bindings._openssl.pyd
        • Size 2.2MB
        • SHA256 1d52effeccbac2789ed9a599cf040d4c68e1636319cec3c3e3fd59d16c5aab2e
        • MD5 SHA1 SHA512 SSDEEP

        unicodedata.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI50~1\unicodedata.pyd
        • Size 671KB
        • SHA256 061926aeaaf4f7e0212552cd4bb5d6af0e8607ec77f6eb836b6612ab86645ac9
        • MD5 SHA1 SHA512 SSDEEP

        memory/3960-186-0x0000000000400000-0x000000000040E000-memory.dmp