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Analysis

  • max time kernel
    78s
  • max time network
    52s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    08/07/2024, 19:31

General

  • Target

    2d8f429c96d92430c8c66679936bbc1f_JaffaCakes118.exe

  • Size

    501KB

  • MD5

    2d8f429c96d92430c8c66679936bbc1f

  • SHA1

    a753880cfe0cb7051a0b9cf07531d04c13f7d032

  • SHA256

    58bb782e0b4222b68641abad8f779125d73fc7d411b837d5a011a7feafd08141

  • SHA512

    fcf28248d78a68a03dd707d7b88dfe7e020916726c9d6bb24c4dc0d932e6cdbca3dd90bff0984b46ce63ac4f367b80f1ff707b3065fa2deb57b1ca29ba04524f

  • SSDEEP

    6144:y8lLSeKLxjiZjdhTv2tIyzJM/FAvzBF/nM+BNlocz4xWadXmRd7gJQa3:ymFT1yNM/Wvz/Z4WaSdUJP

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • UPX packed file 4 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Windows directory 4 IoCs
  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2d8f429c96d92430c8c66679936bbc1f_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\2d8f429c96d92430c8c66679936bbc1f_JaffaCakes118.exe"
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1068
    • C:\Windows\Yjowua.exe
      C:\Windows\Yjowua.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of UnmapMainImage
      PID:1180

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\Tasks\{62C40AA6-4406-467a-A5A5-DFDF1B559B7A}.job

    Filesize

    372B

    MD5

    b4f6d1d2f88f7694aa4f1bb1f5d88540

    SHA1

    cff4da335b60a561ae6ad0789a94c0a4cfa9600a

    SHA256

    58f222c33301742cb36df7b0380b649d47665cf20efa8da087a44bcabb2d9e89

    SHA512

    36131a98d57fae581c8ab02041d1d8d85fdc59204012e507edfe25686addece87854cb1c2916bc158bdc01541076ce101c909240977d2e778c6792da4fcda953

  • C:\Windows\Yjowua.exe

    Filesize

    501KB

    MD5

    2d8f429c96d92430c8c66679936bbc1f

    SHA1

    a753880cfe0cb7051a0b9cf07531d04c13f7d032

    SHA256

    58bb782e0b4222b68641abad8f779125d73fc7d411b837d5a011a7feafd08141

    SHA512

    fcf28248d78a68a03dd707d7b88dfe7e020916726c9d6bb24c4dc0d932e6cdbca3dd90bff0984b46ce63ac4f367b80f1ff707b3065fa2deb57b1ca29ba04524f

  • memory/1068-47230-0x0000000000370000-0x00000000003EF000-memory.dmp

    Filesize

    508KB

  • memory/1068-2-0x0000000000401000-0x0000000000402000-memory.dmp

    Filesize

    4KB

  • memory/1068-0-0x0000000000230000-0x0000000000231000-memory.dmp

    Filesize

    4KB

  • memory/1068-3-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/1068-1-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1068-12-0x0000000000370000-0x00000000003EF000-memory.dmp

    Filesize

    508KB

  • memory/1068-94702-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/1068-47225-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1068-47229-0x0000000000401000-0x0000000000402000-memory.dmp

    Filesize

    4KB

  • memory/1180-13-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1180-19237-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/1180-19363-0x0000000001D50000-0x0000000001E50000-memory.dmp

    Filesize

    1024KB

  • memory/1180-47228-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/1180-19361-0x0000000001D50000-0x0000000001E50000-memory.dmp

    Filesize

    1024KB

  • memory/1180-19378-0x0000000001D50000-0x0000000001E50000-memory.dmp

    Filesize

    1024KB

  • memory/1180-19362-0x0000000001D50000-0x0000000001E50000-memory.dmp

    Filesize

    1024KB

  • memory/1180-19398-0x0000000001D50000-0x0000000001E50000-memory.dmp

    Filesize

    1024KB

  • memory/1180-19-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB