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Analysis

  • max time kernel
    95s
  • 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
    15/01/2025, 21:53

General

  • Target

    2861884f86b9c7f24c3d4216a4695333df027cbac0c3bf533e684afd8a05fc34.exe

  • Size

    884KB

  • MD5

    4f18e57177d694c64ca68c08165b9e3f

  • SHA1

    46ed1dc7af2f59718742be4dcd7f1fb966d7ae2e

  • SHA256

    2861884f86b9c7f24c3d4216a4695333df027cbac0c3bf533e684afd8a05fc34

  • SHA512

    f6715352695d568d15a21eeac031c309a0cf2212a50602fad1360081b786aa03d244ffac961f8bf3ce4daeeacbeb676970cedd2131f3166377ae26702d5215f9

  • SSDEEP

    12288:VooxfGYBfrIHwH5LdW99vYFiTG9gniGXHlhHVDvZ8Ed:VooxfGY142dWHYFiTG9gniizDvZ8A

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 1 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 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2861884f86b9c7f24c3d4216a4695333df027cbac0c3bf533e684afd8a05fc34.exe
    "C:\Users\Admin\AppData\Local\Temp\2861884f86b9c7f24c3d4216a4695333df027cbac0c3bf533e684afd8a05fc34.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:1132
    • C:\Users\Admin\AppData\Local\Temp\3582-490\2861884f86b9c7f24c3d4216a4695333df027cbac0c3bf533e684afd8a05fc34.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\2861884f86b9c7f24c3d4216a4695333df027cbac0c3bf533e684afd8a05fc34.exe"
      2⤵
      • Executes dropped EXE
      PID:1520

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\2861884f86b9c7f24c3d4216a4695333df027cbac0c3bf533e684afd8a05fc34.exe

    Filesize

    843KB

    MD5

    8deafca2db96321dbcd0d9180b95f81a

    SHA1

    7f20d27b43ea558205a81caf4788b5f85bc88c6d

    SHA256

    abb3e8a4cb25996d7a804c76c9cd97d19d28d03819715b20236b546afa485eec

    SHA512

    6883ebfdce106be5115a010d243e9ac742ba1709444edc935b58f062c1ba61c62777990f8b5b2d42f54bb4e525d07666528a2afdc75e7449d22e8e38f2ac49b8

  • memory/1132-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1132-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1132-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB