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Analysis

  • max time kernel
    34s
  • max time network
    38s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/11/2024, 19:07

General

  • Target

    df68fcc885a23dd0479a277fe6b8311d259b39c1bcdb911cfd703bf66b1865ea.exe

  • Size

    496KB

  • MD5

    c0189c6a9d938e155d14991c36e0fe42

  • SHA1

    2235c102fa4ba3abce0f32cae8174f354fee530b

  • SHA256

    df68fcc885a23dd0479a277fe6b8311d259b39c1bcdb911cfd703bf66b1865ea

  • SHA512

    d286e9f97a7bc27254139280e9d17582206e5d0bc8634169eee3cb9e07df4864ba92f26671c26165c9b6a6495776559db000b17bb1117a9013c08dfca484d64e

  • SSDEEP

    12288:kuxJJcO3QtxACS2imUqwph0lhSMXl+XFPcI:kuxkEQtGCtimlGh0lhSMXlg/

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\df68fcc885a23dd0479a277fe6b8311d259b39c1bcdb911cfd703bf66b1865ea.exe
    "C:\Users\Admin\AppData\Local\Temp\df68fcc885a23dd0479a277fe6b8311d259b39c1bcdb911cfd703bf66b1865ea.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:4524
    • C:\Users\Admin\AppData\Local\Temp\3582-490\df68fcc885a23dd0479a277fe6b8311d259b39c1bcdb911cfd703bf66b1865ea.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\df68fcc885a23dd0479a277fe6b8311d259b39c1bcdb911cfd703bf66b1865ea.exe"
      2⤵
      • Executes dropped EXE
      PID:3336

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\df68fcc885a23dd0479a277fe6b8311d259b39c1bcdb911cfd703bf66b1865ea.exe

    Filesize

    455KB

    MD5

    03f236a1916d0c107079fe800459bdb2

    SHA1

    0e9b3f2f921450a3d282c269c5a1d91c259eb200

    SHA256

    8e24f0d5a69b823de1e35d95c7c269435186731c74122b7fefc2015df9b5bb6a

    SHA512

    a3f31f4ff3309636ffe779cfc3159f94e650d4f6f5391cbbb7d7c35854c554bf58782ff14dd23add19ae956811876c5e967eca47fd11a8d92a109c18c2f86a8e

  • memory/4524-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4524-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4524-99-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB