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Analysis

  • max time kernel
    97s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250129-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/02/2025, 09:38

General

  • Target

    JaffaCakes118_871240fa1b0c6c01e8dd839ee8149928.exe

  • Size

    554KB

  • MD5

    871240fa1b0c6c01e8dd839ee8149928

  • SHA1

    437a215edf6c144544fb1cf338bdaff21ef8e203

  • SHA256

    c983128b96bc09c791c394440784651b6103e6f33cbe1693393c9cc97981a3fa

  • SHA512

    7826f85109455b8cfa967af1e5a514449ab7572143dc9a2134624fa3523c550f945c68055be5a36be715d88b375f199b2d43aa21526612808ade41564674152c

  • SSDEEP

    6144:Fu2+izDADyHTtHpPpvu0vTUAycbCFFpBVLVqzjUiyOsAKI3NvuvgYqKBn:dLADyJHBpvu0Q6b4F3VLZkKIBYgYqsn

Malware Config

Signatures

  • 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).

  • 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_871240fa1b0c6c01e8dd839ee8149928.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_871240fa1b0c6c01e8dd839ee8149928.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:3452
    • C:\Users\Admin\AppData\Local\Temp\3582-490\JaffaCakes118_871240fa1b0c6c01e8dd839ee8149928.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\JaffaCakes118_871240fa1b0c6c01e8dd839ee8149928.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4552

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe

    Filesize

    2.4MB

    MD5

    3ca71899df3040619e4d0e484dccc5bf

    SHA1

    5029d9719b090d75b513780bb7cd8c75c12b90a0

    SHA256

    472e66ffcbdf1aee600cedffe2110b0662699b2d32e1eb160f0bf9919b221644

    SHA512

    6a463a2e64bef77112508c5a22f14761255ef5592870c6566a242c944f25d50510e38688bf9b33d73fe9532bd85424bf82d147af21129cbd5083a4bb09683a9f

  • C:\Users\Admin\AppData\Local\Temp\3582-490\JaffaCakes118_871240fa1b0c6c01e8dd839ee8149928.exe

    Filesize

    513KB

    MD5

    ea371f322890a238ced8fb7fa3e7cd61

    SHA1

    7d106ef1b957d8c92e766d0d7faea981376c5d82

    SHA256

    ed5283fdebae2ec8d21d4feb65bfade4df9cd967e21f95856a757fff48eba99e

    SHA512

    3b75c7d173e21f8eabe98c1c9ac9094c989506d7b6537183321043de25cbfa58d62a9659ebedba6e8ba416426a6d4f7958df4e49717749391cf60f3fdcf1c11d

  • memory/3452-94-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3452-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3452-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4552-10-0x0000000000400000-0x0000000000473000-memory.dmp

    Filesize

    460KB