Analysis

  • max time kernel
    140s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    17-08-2024 02:56

General

  • Target

    a0f267f4295cab2d82f51de6324efbc0_JaffaCakes118.exe

  • Size

    5.3MB

  • MD5

    a0f267f4295cab2d82f51de6324efbc0

  • SHA1

    f515ee95bac4edfea555142931e0009b543e6260

  • SHA256

    debe163ce86b890e06d6f6855b0dabc479648b15fd1837cc1ed9f9de0a30cf2f

  • SHA512

    e2a34e1fbcbb4730ea75bc253fe852f327901af568af973a25c152aa02ce933333515ff34a6e145fd39f4fac595f28748b5fd0d55a3a16da1e6642b43a82a377

  • SSDEEP

    98304:4EnIlg1XGTOq/pDi2mgJtNI3ykcKKpvIl8jb+S2bSF9kyIeROE7VO2qxuXHukvOJ:IOqxDNVUyuuv5bF2ODRvVLy/3vum2Fm

Malware Config

Signatures

  • Stops running service(s) 4 TTPs
  • Uses Session Manager for persistence 2 TTPs 3 IoCs

    Creates Session Manager registry key to run executable early in system boot.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Launches sc.exe 1 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a0f267f4295cab2d82f51de6324efbc0_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a0f267f4295cab2d82f51de6324efbc0_JaffaCakes118.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1824
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /tn startt /tr c:\autoexec.bat /sc onstart /ru system
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2856
    • C:\Windows\SysWOW64\sc.exe
      sc delete GbpSv
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2864
    • C:\Windows\SysWOW64\reg.exe
      reg add "HKLM\SYSTEM\ControlSet001\Control\Session manager" /v BootExecute /t REG_MULTI_SZ /d "autocheck autochk *" /f
      2⤵
      • Uses Session Manager for persistence
      • System Location Discovery: System Language Discovery
      PID:2880
    • C:\Windows\SysWOW64\reg.exe
      reg add "HKLM\SYSTEM\ControlSet002\Control\Session manager" /v BootExecute /t REG_MULTI_SZ /d "autocheck autochk *" /f
      2⤵
      • Uses Session Manager for persistence
      • System Location Discovery: System Language Discovery
      PID:2860
    • C:\Windows\SysWOW64\reg.exe
      reg add "HKLM\SYSTEM\CurrentControlSet\Control\Session manager" /v BootExecute /t REG_MULTI_SZ /d "autocheck autochk *" /f
      2⤵
      • Uses Session Manager for persistence
      • System Location Discovery: System Language Discovery
      PID:2868
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1824 -s 808
      2⤵
      • Program crash
      PID:2656

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1824-1-0x000000007EF50000-0x000000007EFAC000-memory.dmp

    Filesize

    368KB

  • memory/1824-2-0x000000007EF50000-0x000000007EFAC000-memory.dmp

    Filesize

    368KB

  • memory/1824-0-0x000000007EF50000-0x000000007EFAC000-memory.dmp

    Filesize

    368KB

  • memory/1824-4-0x000000007EF50000-0x000000007EFAC000-memory.dmp

    Filesize

    368KB

  • memory/1824-7-0x000000007EF50000-0x000000007EFAC000-memory.dmp

    Filesize

    368KB

  • memory/1824-6-0x000000007EF50000-0x000000007EFAC000-memory.dmp

    Filesize

    368KB

  • memory/1824-5-0x000000007EF50000-0x000000007EFAC000-memory.dmp

    Filesize

    368KB

  • memory/1824-3-0x000000007EF50000-0x000000007EFAC000-memory.dmp

    Filesize

    368KB

  • memory/1824-9-0x000000007EF50000-0x000000007EFAC000-memory.dmp

    Filesize

    368KB

  • memory/1824-8-0x0000000000400000-0x0000000001391000-memory.dmp

    Filesize

    15.6MB

  • memory/1824-10-0x0000000074EC1000-0x0000000074EC2000-memory.dmp

    Filesize

    4KB

  • memory/1824-11-0x0000000074EC0000-0x0000000074ECA000-memory.dmp

    Filesize

    40KB

  • memory/1824-15-0x0000000000400000-0x0000000001391000-memory.dmp

    Filesize

    15.6MB

  • memory/1824-16-0x000000007EF50000-0x000000007EFAC000-memory.dmp

    Filesize

    368KB

  • memory/1824-17-0x0000000074EC0000-0x0000000074ECA000-memory.dmp

    Filesize

    40KB