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Analysis

  • max time kernel
    141s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/08/2024, 16:29

General

  • Target

    aff7fed5d0b167308ad264b0dfc5bef6_JaffaCakes118.exe

  • Size

    184KB

  • MD5

    aff7fed5d0b167308ad264b0dfc5bef6

  • SHA1

    5d51076b18ff195b2ab52bfc73bce70cc614b8ee

  • SHA256

    0ec380959d1a89d3293b2900debcf159aad8b91a64ed93bd1337040367b8b123

  • SHA512

    32b81e431161366d460ab2f8f237fb6266f44c40a4c5671c1b2dfa22be74de47992037aec7493cba365f1458ccae13eaf3254ee0eccb165723f48ce31c3d21ea

  • SSDEEP

    3072:t3CRCTcyuZAAA12vVpeubAUuyyAu9cGLNUfP6B7kOjLzI40O3J5IWxSblN:t3XuZ5A12vTe4uhlWGyfiB7kNiX/s

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 2 IoCs
  • UPX packed file 2 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Program crash 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 behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\aff7fed5d0b167308ad264b0dfc5bef6_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\aff7fed5d0b167308ad264b0dfc5bef6_JaffaCakes118.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1148
    • C:\Users\Admin\AppData\Local\Temp\uQbMRDIoHrXyhlzusYWZ.exe
      C:\Users\Admin\AppData\Local\Temp\uQbMRDIoHrXyhlzusYWZ.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:980
    • C:\Users\Admin\AppData\Local\Temp\eWTwfvkcRMaSqVALPATe.exe
      C:\Users\Admin\AppData\Local\Temp\eWTwfvkcRMaSqVALPATe.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4900
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Wfctekb.dll",Startup
        3⤵
        • Loads dropped DLL
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4568
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32.exe "C:\Users\Admin\AppData\Local\Wfctekb.dll",iep
          4⤵
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          PID:2996
    • C:\Users\Admin\AppData\Local\Temp\HbuptnUYIylfZMtjuBZJ.exe
      C:\Users\Admin\AppData\Local\Temp\HbuptnUYIylfZMtjuBZJ.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2052
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2052 -s 576
        3⤵
        • Program crash
        PID:2216
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2052 -ip 2052
    1⤵
      PID:852

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\HbuptnUYIylfZMtjuBZJ.exe

      Filesize

      92KB

      MD5

      a2d1be32a1c5dfe7767f7f88ef29a4a1

      SHA1

      933cb9beb566849e8466fb1779844acaf8e5710f

      SHA256

      80d877df84438bedf1bf62be18e07c3d78be71a916b2dcf67a450bd8dcebf6f8

      SHA512

      4d2780d7d21ba7c34391792d8da3057ba3e29ed611a87f9fad6c0084a3ba8c96f5c43cf10a87d804639d754dde9cd79ce10b5d31df9ad1d13884496ddcd7c084

    • C:\Users\Admin\AppData\Local\Temp\eWTwfvkcRMaSqVALPATe.exe

      Filesize

      67KB

      MD5

      0350f4f74e02eac9702e14cc777f6a38

      SHA1

      83d5603c6496efe7d5f85a620c3c14b0b5e172b5

      SHA256

      a827aab4967b35976202f25da9bb851a8622ae3c58fef21017564e01a0217a87

      SHA512

      47ee07a206dd0f91f6f9037bbc690698ad11a3ecfcc3d5ade0b3fdb5a06afd4545b8ca806f6a5bc6624e1e09019b579e2f067638906681ef0fa5b8bd0b5864fb

    • C:\Users\Admin\AppData\Local\Temp\uQbMRDIoHrXyhlzusYWZ.exe

      Filesize

      26KB

      MD5

      327a81dd19c332ca9ad8db0c9d46d6d6

      SHA1

      8a6e6b9555f8acdd819200f26e5abaef221d82fd

      SHA256

      646e06fc58f4b257a9e8633607b7ef85ccfb7ee1a43149fa536127b1540cde80

      SHA512

      c013def8c68911cfca13cc2cf9c18786195d38147dcf7f1e4107780211b6f503d6815c71413f88d28b8ec108eec308b2e92c9b834accac53bc7e92afab41208d

    • C:\Users\Admin\AppData\Local\Wfctekb.dll

      Filesize

      67KB

      MD5

      62bbd8e688e2fd8e83bc4dcec28ed216

      SHA1

      07912d2bb93c3a83a00fd0041f8a72d081b9b189

      SHA256

      22e8da3c59109f5c2fd3303f567cd3d7e8760b6a446c8d7f3e9c5a59ff5d1a25

      SHA512

      8648b805094f762e8a3b17d57fc2b3f80a2862deb9ca21dfd6ab66712747b4e9efa0e225bba7deac7b00d84198a5f0176af93b7f0a4c632ec6d56e85e23428ca

    • memory/1148-0-0x0000000000400000-0x000000000047A000-memory.dmp

      Filesize

      488KB

    • memory/1148-12-0x0000000000400000-0x000000000047A000-memory.dmp

      Filesize

      488KB

    • memory/2996-44-0x0000000010000000-0x0000000010014000-memory.dmp

      Filesize

      80KB

    • memory/2996-42-0x0000000002EB0000-0x0000000002EC0000-memory.dmp

      Filesize

      64KB

    • memory/2996-39-0x0000000002EB0000-0x0000000002EC0000-memory.dmp

      Filesize

      64KB

    • memory/2996-40-0x0000000002EB0000-0x0000000002EC0000-memory.dmp

      Filesize

      64KB

    • memory/4568-31-0x0000000010000000-0x0000000010014000-memory.dmp

      Filesize

      80KB

    • memory/4568-38-0x0000000010000000-0x0000000010014000-memory.dmp

      Filesize

      80KB

    • memory/4568-22-0x0000000010000000-0x0000000010014000-memory.dmp

      Filesize

      80KB

    • memory/4568-25-0x0000000002CD0000-0x0000000002CE0000-memory.dmp

      Filesize

      64KB

    • memory/4568-24-0x0000000002CD0000-0x0000000002CE0000-memory.dmp

      Filesize

      64KB

    • memory/4568-43-0x0000000010000000-0x0000000010014000-memory.dmp

      Filesize

      80KB

    • memory/4568-29-0x0000000002CD0000-0x0000000002CE0000-memory.dmp

      Filesize

      64KB

    • memory/4568-28-0x0000000002CD0000-0x0000000002CE0000-memory.dmp

      Filesize

      64KB

    • memory/4568-23-0x0000000010000000-0x0000000010014000-memory.dmp

      Filesize

      80KB

    • memory/4900-27-0x0000000002380000-0x0000000002390000-memory.dmp

      Filesize

      64KB

    • memory/4900-16-0x0000000002380000-0x0000000002390000-memory.dmp

      Filesize

      64KB

    • memory/4900-17-0x0000000010000000-0x0000000010014000-memory.dmp

      Filesize

      80KB

    • memory/4900-30-0x0000000010000000-0x0000000010014000-memory.dmp

      Filesize

      80KB

    • memory/4900-15-0x0000000002380000-0x0000000002390000-memory.dmp

      Filesize

      64KB

    • memory/4900-14-0x0000000010000000-0x0000000010014000-memory.dmp

      Filesize

      80KB

    • memory/4900-26-0x0000000002380000-0x0000000002390000-memory.dmp

      Filesize

      64KB