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Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/07/2024, 02:13

General

  • Target

    7235a6cb8daf05e126accb0bb71b1745_JaffaCakes118.exe

  • Size

    33KB

  • MD5

    7235a6cb8daf05e126accb0bb71b1745

  • SHA1

    79f3234feb1af48fcec3c01c25e6298a1e14483a

  • SHA256

    908095ef8efd3243e7233d7f33fe7b78f65a563ca43180a0826e8b6d4cc49ce6

  • SHA512

    6840fb7018bfb89af2c26e99c5f65ac3a09cb275b152b23850a8b09a40310d81e19532dadbd16bfb04632611ae64000fdfcd6a12e9bebdf3b4baa41ab0480e52

  • SSDEEP

    768:erPCBB3zaPmI9/oHW40OmV+rI1dQG4csxaKVTWbb:QPCBRaPt5oHWfq81dQG4jxaKVTk

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Indicator Removal: File Deletion 1 TTPs

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

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in System32 directory 2 IoCs
  • Suspicious use of SetThreadContext 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.

  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7235a6cb8daf05e126accb0bb71b1745_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\7235a6cb8daf05e126accb0bb71b1745_JaffaCakes118.exe"
    1⤵
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1168
    • \??\c:\windows\SysWOW64\wuaucldt.exe
      c:\windows\system32\wuaucldt.exe
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4088
      • \??\c:\users\admin\wuaucldt.exe
        c:\users\admin\wuaucldt.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3208
        • C:\Windows\SysWOW64\svchost.exe
          C:\Windows\system32\svchost.exe
          4⤵
          • Writes to the Master Boot Record (MBR)
          • System Location Discovery: System Language Discovery
          PID:1560
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c del c:\windows\syswow64\wuaucldt.exe
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4784
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c del c:\users\admin\appdata\local\temp\7235A6~1.EXE
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3100

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\wuaucldt.exe

    Filesize

    33KB

    MD5

    7235a6cb8daf05e126accb0bb71b1745

    SHA1

    79f3234feb1af48fcec3c01c25e6298a1e14483a

    SHA256

    908095ef8efd3243e7233d7f33fe7b78f65a563ca43180a0826e8b6d4cc49ce6

    SHA512

    6840fb7018bfb89af2c26e99c5f65ac3a09cb275b152b23850a8b09a40310d81e19532dadbd16bfb04632611ae64000fdfcd6a12e9bebdf3b4baa41ab0480e52

  • memory/1168-0-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/1168-1-0x0000000009000000-0x0000000009009000-memory.dmp

    Filesize

    36KB

  • memory/1168-3-0x0000000070000000-0x000000007000B000-memory.dmp

    Filesize

    44KB

  • memory/1168-2-0x0000000009000000-0x0000000009009000-memory.dmp

    Filesize

    36KB

  • memory/1168-59-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/1560-19-0x0000000000490000-0x0000000000499000-memory.dmp

    Filesize

    36KB

  • memory/1560-20-0x0000000000490000-0x0000000000499000-memory.dmp

    Filesize

    36KB

  • memory/1560-21-0x0000000000490000-0x0000000000499000-memory.dmp

    Filesize

    36KB

  • memory/1560-22-0x0000000000490000-0x0000000000499000-memory.dmp

    Filesize

    36KB

  • memory/1560-24-0x0000000000490000-0x0000000000499000-memory.dmp

    Filesize

    36KB

  • memory/1560-25-0x0000000000490000-0x0000000000499000-memory.dmp

    Filesize

    36KB

  • memory/4088-12-0x0000000070000000-0x000000007000B000-memory.dmp

    Filesize

    44KB