Analysis

  • max time kernel
    95s
  • 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 02:19

General

  • Target

    61fe8cd5253a022bdd9fd75314c44e471dab0c491eba458543d883a9678f756dN.exe

  • Size

    144KB

  • MD5

    46d150964fb96e6968e3cefb4e2eaa60

  • SHA1

    17605348bc801c9fac11a53ac46e8b9b4b166a32

  • SHA256

    61fe8cd5253a022bdd9fd75314c44e471dab0c491eba458543d883a9678f756d

  • SHA512

    c55165326844ec701750280fd440de51870a221e89ba4793ef8f819c38cabb2d9d57babebcb05951045f9126aa3e200eb9c2df79f05a05ab863890d3f1c26bef

  • SSDEEP

    3072:sr85CquaJG4vlP6k4qmKjfHYToQjSJ9sfQvTg:k9RaJFvlP1jgTWJ4QvTg

Malware Config

Signatures

  • Detect Neshta payload 5 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\61fe8cd5253a022bdd9fd75314c44e471dab0c491eba458543d883a9678f756dN.exe
    "C:\Users\Admin\AppData\Local\Temp\61fe8cd5253a022bdd9fd75314c44e471dab0c491eba458543d883a9678f756dN.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:548
    • C:\Users\Admin\AppData\Local\Temp\3582-490\61fe8cd5253a022bdd9fd75314c44e471dab0c491eba458543d883a9678f756dN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\61fe8cd5253a022bdd9fd75314c44e471dab0c491eba458543d883a9678f756dN.exe"
      2⤵
      • Executes dropped EXE
      PID:1156

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\61fe8cd5253a022bdd9fd75314c44e471dab0c491eba458543d883a9678f756dN.exe

    Filesize

    103KB

    MD5

    e5fd9715a3d61a77519698e068f939fc

    SHA1

    05a51c29f6f05f7c3f5c419dfed08850aa132646

    SHA256

    21e37cae6456f0f2b939f07b2a3fca020b51e16253bb983ea873a0394cbe51c2

    SHA512

    db7643689443a3ac4dbac7e1b4029589f8a35aa36a6c4d200ef8f34140d23607b5efd685bbd1fbc3d06da39f5dc0e8f690bd87d7008fe70ad871d46f246ecadb

  • memory/548-92-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/548-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/548-94-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/548-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB