Analysis

  • max time kernel
    94s
  • max time network
    99s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-11-2024 02:26

General

  • Target

    8762d40189b44e0d1a3261d15018ea2df04005e17b969abe584b86d715fa4d90N.exe

  • Size

    667KB

  • MD5

    b3efdaf1c4e81b37d5876c7a6e4c1390

  • SHA1

    c66d67742b0b3878dd11697fec2b272678377ad2

  • SHA256

    8762d40189b44e0d1a3261d15018ea2df04005e17b969abe584b86d715fa4d90

  • SHA512

    aaf1d7aa3b5b4ef98243db443bf386d7b091db398fc94b213522a7839ed252c496ba1e5d19767808e6af9e52b3500978288ab0d69274f5effd0c77d016ec6fbc

  • SSDEEP

    3072:sr85CiMfsfdf3ffjfEfGgffKfQgfSfkyffcfHOch+ffVfofsffefPfDff2ftffGT:k9iIxFx3Gd7jGc7

Malware Config

Signatures

  • Detect Neshta payload 6 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\8762d40189b44e0d1a3261d15018ea2df04005e17b969abe584b86d715fa4d90N.exe
    "C:\Users\Admin\AppData\Local\Temp\8762d40189b44e0d1a3261d15018ea2df04005e17b969abe584b86d715fa4d90N.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:4592
    • C:\Users\Admin\AppData\Local\Temp\3582-490\8762d40189b44e0d1a3261d15018ea2df04005e17b969abe584b86d715fa4d90N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\8762d40189b44e0d1a3261d15018ea2df04005e17b969abe584b86d715fa4d90N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4700

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\8762d40189b44e0d1a3261d15018ea2df04005e17b969abe584b86d715fa4d90N.exe

    Filesize

    627KB

    MD5

    f8e7214da733d1a05dbf51fa32ae1335

    SHA1

    df58ae8a32e1413632c3f1beb4f192ba300cde90

    SHA256

    abcd36f8611a5fcce8117aab561d8a164806412ba804fd35671a4d9f2456318e

    SHA512

    a394ea49a4367d5ff11d2cc117c2203d22cfeb8b2882aae1e1e0e6ee2b9d69dcebe4fe4a6a14bd4959dd8ae3a5fe86924659e24ff6290aa269b11bbe53a69c20

  • memory/4592-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4592-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4592-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4592-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4592-100-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB