Analysis

  • max time kernel
    94s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-12-2024 01:06

General

  • Target

    affb6e3d3b4e72e570543d591c0a1562979413982565dbb9a77f8a07b76cca30N.exe

  • Size

    834KB

  • MD5

    7b0f8ac2a359512a45e33675c2125660

  • SHA1

    ddc2c5b65ebee4925fbbcf9055489a266d57b85d

  • SHA256

    affb6e3d3b4e72e570543d591c0a1562979413982565dbb9a77f8a07b76cca30

  • SHA512

    344c46671054527ce4c722f3a5c8bfb014d704dc1afa35bbddb11cbae1c25cf2d675251e51cb0aa3693204847effa088945749ee389444872ee9ba81ce4b1eba

  • SSDEEP

    12288:tDj3fIMDGfUUmb0kBKMadNA0Gdi8/ICCoUzTyGPc3M/5ri:Zj3fPDGfUUm/oMadNARdB/I7lTyG0Ii

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\affb6e3d3b4e72e570543d591c0a1562979413982565dbb9a77f8a07b76cca30N.exe
    "C:\Users\Admin\AppData\Local\Temp\affb6e3d3b4e72e570543d591c0a1562979413982565dbb9a77f8a07b76cca30N.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:3684
    • C:\Users\Admin\AppData\Local\Temp\3582-490\affb6e3d3b4e72e570543d591c0a1562979413982565dbb9a77f8a07b76cca30N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\affb6e3d3b4e72e570543d591c0a1562979413982565dbb9a77f8a07b76cca30N.exe"
      2⤵
      • Executes dropped EXE
      PID:2428

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\affb6e3d3b4e72e570543d591c0a1562979413982565dbb9a77f8a07b76cca30N.exe

    Filesize

    793KB

    MD5

    5e0c5a48cf624ad4d558026b7c88d940

    SHA1

    b4584f2f757c2d66af119e4899b30976d4cedbbb

    SHA256

    e3a2106ec57fdd3deb22677d3a6b51f4ddaea93e46f676f94e717bdbb0ec6005

    SHA512

    b686ff17772d647fecf2ed38b4000c60a65728d7044ed98abe5ca95e9189289bc61d676c4b98fe58785bcf7bebd824506851a8c9166a9dfe4a48a3e4206c0dff

  • memory/3684-92-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3684-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3684-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB