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Analysis

  • max time kernel
    14s
  • max time network
    18s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    18/08/2024, 07:51

General

  • Target

    a5f9be8097101861e6ec3e8c7253e6bf_JaffaCakes118.exe

  • Size

    21KB

  • MD5

    a5f9be8097101861e6ec3e8c7253e6bf

  • SHA1

    7609c2d84d697ad69b90fbc1857df003b1a017ad

  • SHA256

    8990bd5ee8f0b6dd86e39d332ccd59955d4eb1295141409ffada1826c01ef317

  • SHA512

    d8a3147ace7dfa26c010230029c9ec0c13d924a4ceab8fffb7fab8f6cc28cefd257c15eab2434a9065f19f24440ae58f927fba76f2690a58c5f7dd39a53cf4ff

  • SSDEEP

    384:mIiV728hUQ7Y2P/cVEccDdye7kjlWLe7grPiA8jyrMPhTjanbBoZLrfaNJawcudu:mRGuY2P0Vo6r7SiAwyrMRjb1inbcuyDs

Score
8/10

Malware Config

Signatures

  • Disables RegEdit via registry modification 1 IoCs
  • UPX packed file 2 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 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
  • Modifies Internet Explorer start page 1 TTPs 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a5f9be8097101861e6ec3e8c7253e6bf_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a5f9be8097101861e6ec3e8c7253e6bf_JaffaCakes118.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1944
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\1ED6.tmp\estudisco.bat" "
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2016
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main" /v "Start Page" /d "www.estudisco.com" /t "REG_SZ" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies Internet Explorer settings
        • Modifies Internet Explorer start page
        PID:2844
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKEY_CURRENT_USER\Software\Policies\Microsoft\internet Explorer\Control Panel" /v "Homepage" /d "1" /t "REG_DWORD" /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2876
      • C:\Windows\SysWOW64\reg.exe
        reg add HKEY_current_user\software\microsoft\windows\currentversion\policies\system /v DisableRegistryTools /t reg_dword /d 00000001
        3⤵
        • Disables RegEdit via registry modification
        • System Location Discovery: System Language Discovery
        PID:2864

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\1ED6.tmp\estudisco.bat

    Filesize

    487B

    MD5

    339f90d46b7cb0fa0dd4edd9876731cb

    SHA1

    569a161b9b6a3714fb3b4dc4569200af03da8e06

    SHA256

    7814d527a22e3468ce38b5934b5118f3e64b8d9ed6a69c7efb177ef8c955ec06

    SHA512

    cbc7c0f6f1b74926138c5e9ac40f23d42dd035228ca4928f0bce4d3712aae17bc361c9f3d162d8f79bed56452d8856ea870fae72c55bbddcd649fb26d2f9a33c

  • memory/1944-0-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/1944-17-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB