Analysis

  • max time kernel
    94s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-11-2024 23:01

General

  • Target

    27031eee67a5d47c0cc90e4dc1aa6b415e3d9e66ba0ec8b18c899082d24ea381N.exe

  • Size

    96KB

  • MD5

    395d9e6ed85361a0e9d293b63feae280

  • SHA1

    e9c6d3f651206b73615a7af5e4cbced02beedf6a

  • SHA256

    27031eee67a5d47c0cc90e4dc1aa6b415e3d9e66ba0ec8b18c899082d24ea381

  • SHA512

    0daa2f4a92371923623ab6b0b65e131811a7acfa7ad9a3903b98c910412ad2e12c56e1b846cace11c5c9b9ce2aa157d1ff0e518467e9ba1a07f728d86e01f8d2

  • SSDEEP

    768:eyxqjQl/EMQt4Oei7RwsHxyP7nbxzOQdJvr7MAyAdTmPJbgqcnDcw:JxqjQ+P04wsmJCEr7dU81cw

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\27031eee67a5d47c0cc90e4dc1aa6b415e3d9e66ba0ec8b18c899082d24ea381N.exe
    "C:\Users\Admin\AppData\Local\Temp\27031eee67a5d47c0cc90e4dc1aa6b415e3d9e66ba0ec8b18c899082d24ea381N.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:1528
    • C:\Users\Admin\AppData\Local\Temp\3582-490\27031eee67a5d47c0cc90e4dc1aa6b415e3d9e66ba0ec8b18c899082d24ea381N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\27031eee67a5d47c0cc90e4dc1aa6b415e3d9e66ba0ec8b18c899082d24ea381N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2780

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\27031eee67a5d47c0cc90e4dc1aa6b415e3d9e66ba0ec8b18c899082d24ea381N.exe

    Filesize

    56KB

    MD5

    c43aa7fa021b3b5554cd0690262210a1

    SHA1

    568c0d269b51f5df85e3545544529c8b8241c2d2

    SHA256

    2479016813a9d754bcc1129d7b5ed9b1c1bd8613e398425cea26b7382b5c4a41

    SHA512

    9dd038ec6f6d653a570082772cf498c0f9da01b79399952cb354b74c16c02a85f2aa7c23e49fe6ae8228e202a953ebb2c3913de5cfa44ca656aecd23ed489c1f

  • memory/1528-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1528-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1528-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB