Analysis

  • max time kernel
    114s
  • max time network
    122s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250207-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250207-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-02-2025 14:51

General

  • Target

    b7c72d4d5117c5af5c541ccb7b7ae1ac17a072106a5e8e0e40052cff8da3f295N.exe

  • Size

    366KB

  • MD5

    40a49b88226281f9fe89a5c21b31dc40

  • SHA1

    5a48ecf4adde71c68330778992e02ad4858350f0

  • SHA256

    b7c72d4d5117c5af5c541ccb7b7ae1ac17a072106a5e8e0e40052cff8da3f295

  • SHA512

    38aa3fa8896275b7bf46c518ea8b77538b375536e49385ae8e3b83246e26d41cd61e97a0f63cfd32d11dec9e8f45162a2cc36721abf70f5db835abb8ea2796d1

  • SSDEEP

    6144:k9lyVayioacLiYwPVLLqro+2jydhygKbN+Znu3D+sXOENm2eK7mnoUSgpAY8ODcx:ayVMoacLiYwtLLr+sydfKbCnu31lNDHH

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
  • Downloads MZ/PE file 1 IoCs
  • 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.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b7c72d4d5117c5af5c541ccb7b7ae1ac17a072106a5e8e0e40052cff8da3f295N.exe
    "C:\Users\Admin\AppData\Local\Temp\b7c72d4d5117c5af5c541ccb7b7ae1ac17a072106a5e8e0e40052cff8da3f295N.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:4800
    • C:\Users\Admin\AppData\Local\Temp\3582-490\b7c72d4d5117c5af5c541ccb7b7ae1ac17a072106a5e8e0e40052cff8da3f295N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\b7c72d4d5117c5af5c541ccb7b7ae1ac17a072106a5e8e0e40052cff8da3f295N.exe"
      2⤵
      • Executes dropped EXE
      PID:4260
  • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
    "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIyIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU1NzgiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODAxNjUyMzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI0OTgyNDY1MDg5Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
    1⤵
    • System Location Discovery: System Language Discovery
    • System Network Configuration Discovery: Internet Connection Discovery
    PID:4204

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\b7c72d4d5117c5af5c541ccb7b7ae1ac17a072106a5e8e0e40052cff8da3f295N.exe

    Filesize

    325KB

    MD5

    94fe07302a4b50abe6b517eac212ab0b

    SHA1

    d5346a635dc3506104d92a4f1ea3b5c7d3f37200

    SHA256

    2f243842d537f27523637b6bee1c73d2ded04070b7cf5cf21b4a5c4a8e58af9b

    SHA512

    74e402baf0bcfae737b02ce410e10e43f38e0a23f687f6a9febb131cebb42f5126fd79aee62582c9d6dbdf81d27db06d586dc868df5ca0118583f531fcc65802

  • memory/4800-123-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4800-125-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4800-127-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB