Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-01-2025 07:38

General

  • Target

    cf8b7f99964e29d26f571c26c65bb8e7f012704e00c429a2300915ac8c8ae0ca.exe

  • Size

    942KB

  • MD5

    6514b2a30221802af2f9128037d16e0a

  • SHA1

    957f913d26b225a4a83643eda7a4974bf3aed98a

  • SHA256

    cf8b7f99964e29d26f571c26c65bb8e7f012704e00c429a2300915ac8c8ae0ca

  • SHA512

    71bd47e197ebee48883aed12311b8f5ab1fa579bfb6c174a7ed96ff86c0be650786de42e19c5108dc58cca011d7064aad901397a44f673bcfe2e0af6fc946b75

  • SSDEEP

    24576:jqR2Q5Wq2TyRZc1nT24VT+Hx6m2kTGYj2N6FnsSYzda5M1fLmwiU0kdQNxMTHoh8:eqyi24w0m2kTjeN

Malware Config

Signatures

  • Detect Neshta payload 5 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 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cf8b7f99964e29d26f571c26c65bb8e7f012704e00c429a2300915ac8c8ae0ca.exe
    "C:\Users\Admin\AppData\Local\Temp\cf8b7f99964e29d26f571c26c65bb8e7f012704e00c429a2300915ac8c8ae0ca.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:1192
    • C:\Users\Admin\AppData\Local\Temp\3582-490\cf8b7f99964e29d26f571c26c65bb8e7f012704e00c429a2300915ac8c8ae0ca.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\cf8b7f99964e29d26f571c26c65bb8e7f012704e00c429a2300915ac8c8ae0ca.exe"
      2⤵
      • Executes dropped EXE
      PID:3248

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\cf8b7f99964e29d26f571c26c65bb8e7f012704e00c429a2300915ac8c8ae0ca.exe

    Filesize

    901KB

    MD5

    86b192443349a5ed610eed044d40da3c

    SHA1

    b441c25dc974334fee2c8a1beb03fa43e8a80fd0

    SHA256

    f74222dd7b6da1e1819531851f9f7f475c52fa8dbd258d71bf2a200bfebd066d

    SHA512

    6bc5223d694089f2432aad0b3ac5d1fdff0c9425e9c39f5f5522acfbfa0d8bc519d4a3276539c62a246f9c5e14bb300413f26ad4e004fb544ad3d867fd34e5d8

  • memory/1192-91-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1192-92-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1192-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1192-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB