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Analysis

  • max time kernel
    121s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    27/07/2024, 00:50

General

  • Target

    766ff58f7654237b7175c847fdd8ff83_JaffaCakes118.exe

  • Size

    251KB

  • MD5

    766ff58f7654237b7175c847fdd8ff83

  • SHA1

    ee99c051d52d15a5f8cd98ca223d40dca3538e09

  • SHA256

    4e1c3e1b5570dbbe0854634617be48d8f5b51be003d6f19656fad33f146b638d

  • SHA512

    11ff585f82000719009d3e74876db673b871933260989ecda4090475addd5a38fb8413f9bbaf9a22dedd62711a9dae3f4ba846e92b90b8d01f223c601351ded1

  • SSDEEP

    6144:VqJpof5u+c+jJlfu63rDEopxMDCFIk3NX:twGjbfuYGmjJ

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • UPX packed file 3 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
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 1 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\766ff58f7654237b7175c847fdd8ff83_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\766ff58f7654237b7175c847fdd8ff83_JaffaCakes118.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1988
    • C:\Windows\Mtyfya.exe
      C:\Windows\Mtyfya.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of UnmapMainImage
      PID:2916

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\Mtyfya.exe

    Filesize

    251KB

    MD5

    766ff58f7654237b7175c847fdd8ff83

    SHA1

    ee99c051d52d15a5f8cd98ca223d40dca3538e09

    SHA256

    4e1c3e1b5570dbbe0854634617be48d8f5b51be003d6f19656fad33f146b638d

    SHA512

    11ff585f82000719009d3e74876db673b871933260989ecda4090475addd5a38fb8413f9bbaf9a22dedd62711a9dae3f4ba846e92b90b8d01f223c601351ded1

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

    Filesize

    372B

    MD5

    32e7056128be92a104dddf5ffc1e2f8f

    SHA1

    5b49d767fe140dc93e454bb5e19badf1f6b9eb0a

    SHA256

    eebe4f21285bdd3a45c27e079010bf40569d85bc9e83f22af3998a6844de1a6b

    SHA512

    78f0f934f30426cbe55edeac4d9e05677980b4528411adde695fbc9f422571d45800288d4bb4eb68c0aab768bd516fcc4fbfde458370c05ef45aeb41f8ee924a

  • memory/1988-12-0x0000000002360000-0x00000000023A1000-memory.dmp

    Filesize

    260KB

  • memory/1988-3-0x0000000000400000-0x0000000000439000-memory.dmp

    Filesize

    228KB

  • memory/1988-1-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/1988-0-0x00000000003B0000-0x00000000003B1000-memory.dmp

    Filesize

    4KB

  • memory/1988-2-0x0000000000401000-0x0000000000402000-memory.dmp

    Filesize

    4KB

  • memory/1988-37657-0x0000000000401000-0x0000000000402000-memory.dmp

    Filesize

    4KB

  • memory/1988-37653-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/1988-47343-0x0000000000400000-0x0000000000439000-memory.dmp

    Filesize

    228KB

  • memory/2916-13-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/2916-19-0x0000000000400000-0x0000000000439000-memory.dmp

    Filesize

    228KB

  • memory/2916-47345-0x0000000000400000-0x0000000000439000-memory.dmp

    Filesize

    228KB