Analysis

  • max time kernel
    93s
  • max time network
    97s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-12-2024 07:22

General

  • Target

    29e86031f9f267436bdef71f24aa4eeabe0661419abd04cc6d690fa75ac18bf4N.exe

  • Size

    144KB

  • MD5

    d209c3e37b3a775eb8169605acb86940

  • SHA1

    fe9d9d27bfa2631edc4bc9e0d2ef2cf5bf61428a

  • SHA256

    29e86031f9f267436bdef71f24aa4eeabe0661419abd04cc6d690fa75ac18bf4

  • SHA512

    f63a46d9ac7c5d2e397e592e34ab3aaf529dde52248d5a6acc37eab755aefba993b04c6706085e9697700aa1ac57ccd33f055a335b1fcf48d4f328d983719d95

  • SSDEEP

    3072:sr85CquaJG4vlP6k4qmKjfHYTonqSJ9sfQvTg:k9RaJFvlP1jgT4J4QvTg

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\29e86031f9f267436bdef71f24aa4eeabe0661419abd04cc6d690fa75ac18bf4N.exe
    "C:\Users\Admin\AppData\Local\Temp\29e86031f9f267436bdef71f24aa4eeabe0661419abd04cc6d690fa75ac18bf4N.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:1040
    • C:\Users\Admin\AppData\Local\Temp\3582-490\29e86031f9f267436bdef71f24aa4eeabe0661419abd04cc6d690fa75ac18bf4N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\29e86031f9f267436bdef71f24aa4eeabe0661419abd04cc6d690fa75ac18bf4N.exe"
      2⤵
      • Executes dropped EXE
      PID:1936

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\29e86031f9f267436bdef71f24aa4eeabe0661419abd04cc6d690fa75ac18bf4N.exe

    Filesize

    103KB

    MD5

    5bafc0c3f56b2bea7145b11da515249c

    SHA1

    9087952333f60128627e6b906fc8596fa61cb2ab

    SHA256

    80aee50cfba9b11cf74a412b9f6148da4fb325d2296d52af44a530ea7e3ea16f

    SHA512

    e9575108999bf91c421715df43a04d215be29016cf6589daff087fdaba1b5b5ee084f30dc72a6e1911a5ef5f052d822190d01cfe714f66673c4eb811c7055d92

  • memory/1040-92-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1040-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1040-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB