Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-01-2025 12:26

General

  • Target

    JaffaCakes118_550dfa6e3f38e3963ae5e578f371d8f0.exe

  • Size

    335KB

  • MD5

    550dfa6e3f38e3963ae5e578f371d8f0

  • SHA1

    6e1c15c1320f46f5e40e678df1eaf8bfd1d6c2b7

  • SHA256

    b684b68ac65daaaa5f521c814e9d5dcb96e77f4f5f8fb0c32fc08fd1668431b8

  • SHA512

    dc304bcffe5451597bfe97a545757029f6687de3e334d9fcbc73f65d4896ae9fc00bcae33e18d314bca3c37925b4c344baa2651709a110bdb52f2cf50c8d0bae

  • SSDEEP

    6144:k9X7bNIFlJYe5hhbouaeIDFsEt5qs7IJqp6FaRAhhJx:71pbjnIhsESs0JVYs

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
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • 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 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in System32 directory 6 IoCs
  • 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 registry class 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_550dfa6e3f38e3963ae5e578f371d8f0.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_550dfa6e3f38e3963ae5e578f371d8f0.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:2520
    • C:\Users\Admin\AppData\Local\Temp\3582-490\JaffaCakes118_550dfa6e3f38e3963ae5e578f371d8f0.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\JaffaCakes118_550dfa6e3f38e3963ae5e578f371d8f0.exe"
      2⤵
      • Boot or Logon Autostart Execution: Active Setup
      • Executes dropped EXE
      • Modifies system executable filetype association
      • Adds Run key to start application
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      PID:5060
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5060 -s 704
        3⤵
        • Program crash
        PID:2264
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 5060 -ip 5060
    1⤵
      PID:1004

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    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\JaffaCakes118_550dfa6e3f38e3963ae5e578f371d8f0.exe

      Filesize

      294KB

      MD5

      0bb7b37dd577878d59f45c8e4091c020

      SHA1

      32c243aed2d72d135a8a77b04904284166620508

      SHA256

      bef2cacce7ea3b39e63484ea9ae7399bf0e8cd01e7166093a69cb5dd90a57e59

      SHA512

      68b6a053e33b72505dad2db77214b1b0ff2a9ce85693fe7445a06418cefb03963f410193a52c4796070ffde6947ceb8b68fb40bf29422ab8f459b7dab2662ffd

    • memory/2520-103-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2520-104-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2520-106-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/5060-11-0x0000000000400000-0x0000000000435000-memory.dmp

      Filesize

      212KB

    • memory/5060-102-0x0000000000400000-0x0000000000435000-memory.dmp

      Filesize

      212KB