Analysis

  • max time kernel
    135s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-11-2024 20:13

General

  • Target

    a3e57685eb24779318ba16fbaa725132_JaffaCakes118.exe

  • Size

    735KB

  • MD5

    a3e57685eb24779318ba16fbaa725132

  • SHA1

    29f6df7a0bbadb3d9dc538c3e8530e2b5e9dfd6c

  • SHA256

    763e21d08c9acb1b393599f28cfe0838677f537062ecf9b45dd1a47be2869bf3

  • SHA512

    c1da2ada35b63264d1204deb276c11978b98a6847e9147211d6ff5185619c500bdebbd307a579301ff2e76102c91ed64bf227eabe0f5040ed3373e7374c56cc3

  • SSDEEP

    12288:VTegQDvOgIn6lJ5sYEse/4Jim4wb8QY+G2ke8xNOMfm33sUn9bwC8PKAZBgqBaCc:Eg5noXe/44m4CvY+TBoXm33pwC8PKAZ4

Malware Config

Signatures

  • Detect Neshta payload 4 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Neshta family
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • UPX packed file 3 IoCs

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

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 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 4 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a3e57685eb24779318ba16fbaa725132_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a3e57685eb24779318ba16fbaa725132_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4972
    • C:\Users\Admin\AppData\Local\Temp\3582-490\a3e57685eb24779318ba16fbaa725132_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\a3e57685eb24779318ba16fbaa725132_JaffaCakes118.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:2088
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2088 -s 1956
        3⤵
        • Program crash
        PID:4588
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2088 -ip 2088
    1⤵
      PID:2600

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE

      Filesize

      86KB

      MD5

      3b73078a714bf61d1c19ebc3afc0e454

      SHA1

      9abeabd74613a2f533e2244c9ee6f967188e4e7e

      SHA256

      ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29

      SHA512

      75959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4

    • C:\Users\Admin\AppData\Local\Temp\3582-490\a3e57685eb24779318ba16fbaa725132_JaffaCakes118.exe

      Filesize

      694KB

      MD5

      164648505bab238e770796fcbc6226ec

      SHA1

      5ac1f2572398e0fb37d7d259dc41781e30090efa

      SHA256

      ffccaff971575f45f61f6684546189513f22cd4993e5ad03cbc8388cee1b7515

      SHA512

      ab919f613eef7a073ae7e714ad2bf561f843ee510a3bedc3ffa447719f01cb25ffd42efc0c89ff1022c390739a0d18b70ee8aad1d5c814458c9a3bfbd8bb9f0c

    • C:\Users\Admin\AppData\Local\Temp\mediaget-installer-tmp\index.html

      Filesize

      10KB

      MD5

      6cb5103f7a8d1d0586dd4b18ea9fd08e

      SHA1

      bbb91a5f9a1aa2ad9c9de0ec8fed5f24627a0378

      SHA256

      ea394bfcf0764a713bc7017708663b81cdde77ec363e96e054fe7aa6e73f3b70

      SHA512

      bee6498ed2be8e5eb1dbadffce9295b8c9d009c91868ecd27f9945d4e8d95c71881371afbc5db984c34ec1e15d3a91c0bca7eb1e19236ad341eeff5198dddf98

    • C:\Users\Admin\AppData\Local\Temp\mediaget-installer-tmp\js\jquery-ui.min.1.8.0.js

      Filesize

      202KB

      MD5

      a4fdd77e182bd2fabe300a47b5617a35

      SHA1

      e002b335c75b5edefcd251962f61f53a2ab8e0f2

      SHA256

      8b59592d67eadc703af6cdd5ba8d077f9f9485d01fb6405555614335f89be99b

      SHA512

      ddcccde1c129f8f71fb39685abc615c4202b8b3dfc12cedd7d9cca2f97b308fc14b64497826421fa9df3d1cf54bdae9c085051af0a8d393cd3d556a6578d4085

    • C:\Users\Admin\AppData\Local\Temp\mediaget-installer-tmp\js\jquery.min.1.6.4.js

      Filesize

      89KB

      MD5

      219073097031d9c1a95a1291d66f3a10

      SHA1

      2b7996b01d90b7f424f2a2e6063947461db4b2b2

      SHA256

      232066e3f6f1351afdaee1acb70c409766641fd5669e0b55ce7c77fac0a857ef

      SHA512

      9ad2745f96cf79a4d59393cc3fbb3958b244013f6798c12abe41e37fca80df3c7cedab4b47cbd197645c86b31077388ec8f01ea8d67c5feacbef95b1ae7582b5

    • memory/2088-12-0x0000000000400000-0x00000000005BF000-memory.dmp

      Filesize

      1.7MB

    • memory/2088-13-0x0000000000890000-0x0000000000891000-memory.dmp

      Filesize

      4KB

    • memory/2088-90-0x0000000000400000-0x00000000005BF000-memory.dmp

      Filesize

      1.7MB

    • memory/4972-160-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/4972-161-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/4972-163-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB