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
    12-10-2024 07:01

General

  • Target

    9b6a8cd77bbc0c07466c9f99390cf13ed081820aa039634d4ed08f29f9dde57dN.exe

  • Size

    148KB

  • MD5

    a245114e0a7b0ddea746c04bf06d8d10

  • SHA1

    a9abc85ba8381556e2be7c57e2fb67426108d595

  • SHA256

    9b6a8cd77bbc0c07466c9f99390cf13ed081820aa039634d4ed08f29f9dde57d

  • SHA512

    a2b3d00c6b84f89f4edf38bc54f173a7e7e2e51a4a47dc4036b225322e6b713d1ad7ac4b5664c810d51299c82bfce0193b7fc3d2e1f71b41f5618ac0675a84ba

  • SSDEEP

    3072:sr85CwkUITNYlT3sbC4TYto9kIu98buj5Jd:k9wk5YlrsbC4Yo9qj/d

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.

  • 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\9b6a8cd77bbc0c07466c9f99390cf13ed081820aa039634d4ed08f29f9dde57dN.exe
    "C:\Users\Admin\AppData\Local\Temp\9b6a8cd77bbc0c07466c9f99390cf13ed081820aa039634d4ed08f29f9dde57dN.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:3552
    • C:\Users\Admin\AppData\Local\Temp\3582-490\9b6a8cd77bbc0c07466c9f99390cf13ed081820aa039634d4ed08f29f9dde57dN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\9b6a8cd77bbc0c07466c9f99390cf13ed081820aa039634d4ed08f29f9dde57dN.exe"
      2⤵
      • Executes dropped EXE
      PID:436

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\9b6a8cd77bbc0c07466c9f99390cf13ed081820aa039634d4ed08f29f9dde57dN.exe

    Filesize

    108KB

    MD5

    40fc9ee4fbc8adaa59532c3d6d6a3bb4

    SHA1

    ce8ae1206c6c13ccd8aa553bdc4f825cabf671c3

    SHA256

    446fa201fce90d7c9967164c5c3c50e50893fbb804fa154e400f38e6b8475e2e

    SHA512

    0fb84bfe0f25a0659c8e7d1959af5fa5e3fee97cdd4eea10848c734f44ad85e83489ca378b13054332e42794054f2bf41ccf517c623d1169dcc4c3a1c356e4b2

  • memory/3552-92-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3552-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3552-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB