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
    30-11-2024 14:11

General

  • Target

    648026816c2df29bfec23bb731d924427a4c90cf0f3c63f56ecd79720d8f2424N.exe

  • Size

    987KB

  • MD5

    549ef590db21892e3b17991fb1cb7210

  • SHA1

    779bf7398b5aca6f1f2e449a22a454adb2171440

  • SHA256

    648026816c2df29bfec23bb731d924427a4c90cf0f3c63f56ecd79720d8f2424

  • SHA512

    9b0e147a234d8b238b387692db11693fb4a0748f2229869a2ca81ae81a17237ce95d17ddf2a8e47cc4b9981e6410f11b0bb4b8b1b6a0cfca2996ec059f76a0a3

  • SSDEEP

    24576:+RZkLjoXAINh3NTTSc/fcXcpui+fR2LZS:+RK2ZNTTZ3piRa0

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\648026816c2df29bfec23bb731d924427a4c90cf0f3c63f56ecd79720d8f2424N.exe
    "C:\Users\Admin\AppData\Local\Temp\648026816c2df29bfec23bb731d924427a4c90cf0f3c63f56ecd79720d8f2424N.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:4856
    • C:\Users\Admin\AppData\Local\Temp\3582-490\648026816c2df29bfec23bb731d924427a4c90cf0f3c63f56ecd79720d8f2424N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\648026816c2df29bfec23bb731d924427a4c90cf0f3c63f56ecd79720d8f2424N.exe"
      2⤵
      • Executes dropped EXE
      PID:4776

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\648026816c2df29bfec23bb731d924427a4c90cf0f3c63f56ecd79720d8f2424N.exe

    Filesize

    947KB

    MD5

    e327a55a9fc9b4f3b4b543ddcde1b873

    SHA1

    81ae3f10b08b5504b51f8650a7b0242901e4f567

    SHA256

    5f58a25694991888d3cfc49a4dcb8e865c3bf0c01347e3658591e346c6a19fae

    SHA512

    5bb806b8951a987fe0dfba9b04dc7aa65d44fcd037827a4246b7c1334a66c76fbbf0ac88db466b3c5e134d968181db05780e79d3ca3a212a70b910a706f8ae7a

  • memory/4856-91-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4856-92-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4856-94-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB