Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-01-2025 21:59

General

  • Target

    JaffaCakes118_25bfcc0b2b90491ad8a332f80f44d61b.exe

  • Size

    400KB

  • MD5

    25bfcc0b2b90491ad8a332f80f44d61b

  • SHA1

    76e309985999d22c94ca74ece2700f3c26833496

  • SHA256

    fcbc7959dc293d7d0627ac2315a04c2878dc6ec73671cce0935b47790be8418d

  • SHA512

    f820ad3fb9cc34ef8707f4492130cff075485e727019e4bf1b162a3cf6861ca803efefc7182f16006a06cebd3c10ee01cdc5001152acb7428d8ec3d3fafcc33f

  • SSDEEP

    6144:k9zaFSScmksrWnzUp8gHDgV+omD512hwrD/lAq4SYnslQAIOU:maFRcoWnu8V/mD56wPNAq4XniQAIOU

Malware Config

Signatures

  • Detect Neshta payload 5 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.

  • 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 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25bfcc0b2b90491ad8a332f80f44d61b.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25bfcc0b2b90491ad8a332f80f44d61b.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:560
    • C:\Users\Admin\AppData\Local\Temp\3582-490\JaffaCakes118_25bfcc0b2b90491ad8a332f80f44d61b.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\JaffaCakes118_25bfcc0b2b90491ad8a332f80f44d61b.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2316
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2316 -s 388
        3⤵
        • Program crash
        PID:4448
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2316 -ip 2316
    1⤵
      PID:2880

    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\JaffaCakes118_25bfcc0b2b90491ad8a332f80f44d61b.exe

      Filesize

      359KB

      MD5

      8db497892f44b3e78a1ca6b018236be3

      SHA1

      f202f362da2f375521cfddfe67bb8873cfa37933

      SHA256

      27b51c5499d7bff2d4fa455d2553807a8c6fc945392fa594a8f517453017df04

      SHA512

      62ce13157aed6a18f1241cfa25d8f11ea714f4d24b80c77999592f40f5dcdef2b3d5aeb170166a4b5134e1d9e258448583866bc77ce8d97f2b06ff3ccb601782

    • memory/560-95-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/560-96-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/560-97-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/560-99-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2316-8-0x0000000000400000-0x0000000000461000-memory.dmp

      Filesize

      388KB

    • memory/2316-11-0x0000000000400000-0x0000000000461000-memory.dmp

      Filesize

      388KB