Analysis

  • max time kernel
    92s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-12-2024 15:06

General

  • Target

    cda3b83cd0435a5fcf741403b04bcddb_JaffaCakes118.exe

  • Size

    230KB

  • MD5

    cda3b83cd0435a5fcf741403b04bcddb

  • SHA1

    e2bb76411efdc9a3617c69e37abab51dfe7dd338

  • SHA256

    e635c40a1e48af2e98ca48bec4ada63aa56312800f89145e702c279dd2aeb848

  • SHA512

    b3d5840bfe336d9d0a0ff147f647c263e1e1dd528a899a3415579a734335604dd546c7ea4d56bda7fe9bb1c0a5252b2e46f152e074d006bf51eaaec711b3d194

  • SSDEEP

    6144:k9Vfgdbj+NfxmfizrEpJ1M9MAr/RBoTbn64W4wjwEE7/ZBl9CJhGgVI:ugdi/RBoTj64xhce

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.

  • 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\cda3b83cd0435a5fcf741403b04bcddb_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\cda3b83cd0435a5fcf741403b04bcddb_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:1216
    • C:\Users\Admin\AppData\Local\Temp\3582-490\cda3b83cd0435a5fcf741403b04bcddb_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\cda3b83cd0435a5fcf741403b04bcddb_JaffaCakes118.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2732

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\cda3b83cd0435a5fcf741403b04bcddb_JaffaCakes118.exe

    Filesize

    189KB

    MD5

    591f2a726de442540cde55fc2a3c00a7

    SHA1

    9cfd0da4594fc2e93c83085163f36aa44014b31d

    SHA256

    549a154303a157ce55e79018b30f7cd9619a9236758f80969caad09dd75f2dd7

    SHA512

    2ba67308d6a69b88a0749e738d69d40b69836dfd0d5fe4eefc4a886dd7ee50d719388584477e069e530489f82ccb1006110f535e643441d11bb07ad6e7807e87

  • memory/1216-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1216-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1216-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2732-8-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

  • memory/2732-11-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB