Analysis

  • max time kernel
    110s
  • 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
    01-12-2024 11:11

General

  • Target

    dd652506cbf7a9874fc32ea221e1382f7f8f01b797b4ec5471dabb5d7bdc08b8N.exe

  • Size

    1.3MB

  • MD5

    1b07fdc6ba892a3eafebf758414dfaa0

  • SHA1

    9a1bd816b559cff1b81e2c30e0418533c6e6a8d7

  • SHA256

    dd652506cbf7a9874fc32ea221e1382f7f8f01b797b4ec5471dabb5d7bdc08b8

  • SHA512

    7d6bd06c6278c9485a4cb5e45f1e42f449bc25b1ab313790c5ff7b732cbe7a4b8496de43071581f3324ca4662a152340428cf3af8686967f702f38f8047d06fe

  • SSDEEP

    24576:fT29Y8Hasfku/oUbWJE/+595N/D3ET7YN2W2sN4:fWLNoguz59j/D3ZjN4

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\dd652506cbf7a9874fc32ea221e1382f7f8f01b797b4ec5471dabb5d7bdc08b8N.exe
    "C:\Users\Admin\AppData\Local\Temp\dd652506cbf7a9874fc32ea221e1382f7f8f01b797b4ec5471dabb5d7bdc08b8N.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:3344
    • C:\Users\Admin\AppData\Local\Temp\3582-490\dd652506cbf7a9874fc32ea221e1382f7f8f01b797b4ec5471dabb5d7bdc08b8N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\dd652506cbf7a9874fc32ea221e1382f7f8f01b797b4ec5471dabb5d7bdc08b8N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2248

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\dd652506cbf7a9874fc32ea221e1382f7f8f01b797b4ec5471dabb5d7bdc08b8N.exe

    Filesize

    1.3MB

    MD5

    8287a1103ae2fc52b5cc6275c3c86897

    SHA1

    94a7cdf8f9aa8217eba3af8b9e51bcf8978ddec5

    SHA256

    a43b667acb1f64c7f799a2fac4ad4ac0de54e503ee1ee321a6b7b4bf3b9e33a7

    SHA512

    6e16560d00302fb6daeaabd7825c963b0c8f05daab1e4990fc09b1d0a196d8e5d62547dc26d04ebaaf5e1e3af6c76f6b9384de5db8bce4d1f2d547996df94825

  • memory/2248-9-0x00000000023C0000-0x00000000023C1000-memory.dmp

    Filesize

    4KB

  • memory/2248-95-0x00000000023C0000-0x00000000023C1000-memory.dmp

    Filesize

    4KB

  • memory/2248-94-0x0000000000400000-0x0000000000552000-memory.dmp

    Filesize

    1.3MB

  • memory/3344-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3344-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3344-99-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB