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Analysis

  • max time kernel
    134s
  • max time network
    103s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/08/2024, 07:46

General

  • Target

    b2a53173b9154b477af5d6e8e7ddb9df_JaffaCakes118.exe

  • Size

    94KB

  • MD5

    b2a53173b9154b477af5d6e8e7ddb9df

  • SHA1

    3471cad194d3b928dc3d0d4b738cc6cd81234f79

  • SHA256

    3f97c3855ee4dee62275a6b3d8a2a22d4200a0d2ab03da5e0b08157e30b9ec7a

  • SHA512

    ffacca7f0cf03aca07632e929080468b1280bdebee5940298e4178a2b94f6ed427f0a0364836e6d63713353831d2c33fb54780a26963170c445539c17b5a7324

  • SSDEEP

    1536:2HpqdKQfKImkaXmcGhoc//////lVQcprzIxYLadR7fvlPP+/zPwKiuicqaa+IW0F:2QKLI1aXmcGyc//////zrwrdf+7oKi/P

Malware Config

Signatures

  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Indicator Removal: File Deletion 1 TTPs

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

  • Drops file in System32 directory 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 16 IoCs

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

  • Modifies registry class 7 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 30 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 45 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b2a53173b9154b477af5d6e8e7ddb9df_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\b2a53173b9154b477af5d6e8e7ddb9df_JaffaCakes118.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2884
    • C:\Windows\SysWOW64\net.exe
      net stop "Security Center"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:624
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop "Security Center"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:828
    • C:\Windows\SysWOW64\net.exe
      net stop "Windows Firewall/Internet Connection Sharing (ICS)"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1328
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop "Windows Firewall/Internet Connection Sharing (ICS)"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4788
    • C:\Windows\SysWOW64\net.exe
      net stop System Restore Service
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3144
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop System Restore Service
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1112
    • C:\Windows\SysWOW64\net.exe
      net stop "Security Center"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4016
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop "Security Center"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4508
    • C:\Windows\SysWOW64\net.exe
      net stop "Windows Firewall/Internet Connection Sharing (ICS)"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3504
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop "Windows Firewall/Internet Connection Sharing (ICS)"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:320
    • C:\Windows\SysWOW64\net.exe
      net stop System Restore Service
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5028
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop System Restore Service
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2392
    • C:\Users\Admin\AppData\Local\Temp\wmnet.exe
      C:\Users\Admin\AppData\Local\Temp\wmnet.exe
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2152
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\wmnet.exe >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:628
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c del C:\avp.exe
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3024

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\wmnet.exe

    Filesize

    22KB

    MD5

    a3572767adcc4fd09dc4d9c18e2cc79b

    SHA1

    a88406a6b6ee8b67b6a5952f039989398dbfe71d

    SHA256

    475ba77f291cb1a34fe13ac678f7f3438813914299c5943c6b9dfb69189a9ebd

    SHA512

    39f9fe10828b6dab1373af552fafe4fe83de30945fbc28c05c310d4a8690ae59059b2c74abdbd05f4072fe3a5e93ecacdb35bfef52569462d3e222672c1392dc

  • C:\Windows\SysWOW64\08223B03.dll

    Filesize

    15KB

    MD5

    2e8621a3f5c9ae5ca3e6062b11b8936d

    SHA1

    cd3d3342a9455ace35eb2220f3f0465915a48dee

    SHA256

    e6c6aea9cf9f0e39e6cbc4b5dcb780d2a2f032612e00c86ebe26ac3def9288e5

    SHA512

    b6d53bc59ecd2819e0504c719e24413c4e6188244e52d613c18590a94462a200ac4fb50d40e7256aedaec36ae3d08ed530c11c7657e82b66e5d508f6efff18a3

  • memory/2152-4-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2152-11-0x0000000010000000-0x0000000010010000-memory.dmp

    Filesize

    64KB

  • memory/2152-12-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2152-14-0x0000000010000000-0x0000000010010000-memory.dmp

    Filesize

    64KB

  • memory/2884-15-0x000000000F000000-0x000000000F01F000-memory.dmp

    Filesize

    124KB