Analysis

  • max time kernel
    142s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-05-2024 00:02

General

  • Target

    86f5cc4b3b8bbbfbc49ab1d9ee78e9307de5caf77e6ed5c38e0c7a9a7f5b0509.exe

  • Size

    180KB

  • MD5

    65d61402b80998d3700b367b85dd386b

  • SHA1

    3648f68351bda23d29bfe98196307d56e887e1dc

  • SHA256

    86f5cc4b3b8bbbfbc49ab1d9ee78e9307de5caf77e6ed5c38e0c7a9a7f5b0509

  • SHA512

    cb3006ed9658278fc4aa4ee61c5b86da3a5f3f469c8684098411eff1bfb29958449aa115297beaafa607bec7a2b231e27ff23f82b3f6db8e2726330d727ba736

  • SSDEEP

    3072:sr85C20EiRQ1G78IVn2tbSkcJU8lt0iiS4omp03WQthI/US3BZh:k920C1G78IVEc6ctfiS4ompBUS3BZh

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 2 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).

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\86f5cc4b3b8bbbfbc49ab1d9ee78e9307de5caf77e6ed5c38e0c7a9a7f5b0509.exe
    "C:\Users\Admin\AppData\Local\Temp\86f5cc4b3b8bbbfbc49ab1d9ee78e9307de5caf77e6ed5c38e0c7a9a7f5b0509.exe"
    1⤵
    • Checks computer location settings
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1440
    • C:\Users\Admin\AppData\Local\Temp\3582-490\86f5cc4b3b8bbbfbc49ab1d9ee78e9307de5caf77e6ed5c38e0c7a9a7f5b0509.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\86f5cc4b3b8bbbfbc49ab1d9ee78e9307de5caf77e6ed5c38e0c7a9a7f5b0509.exe"
      2⤵
      • Executes dropped EXE
      PID:1288
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4196,i,16488180140590516186,11762960689811837350,262144 --variations-seed-version --mojo-platform-channel-handle=3816 /prefetch:8
    1⤵
      PID:3032

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Persistence

    Event Triggered Execution

    1
    T1546

    Change Default File Association

    1
    T1546.001

    Privilege Escalation

    Event Triggered Execution

    1
    T1546

    Change Default File Association

    1
    T1546.001

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Unsecured Credentials

    1
    T1552

    Credentials In Files

    1
    T1552.001

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Collection

    Data from Local System

    1
    T1005

    Replay Monitor

    Loading Replay Monitor...

    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\86f5cc4b3b8bbbfbc49ab1d9ee78e9307de5caf77e6ed5c38e0c7a9a7f5b0509.exe
      Filesize

      139KB

      MD5

      89a81ce88efea77c89dc6751ddceede5

      SHA1

      59ad203c7cf17fcebfc99803574de062b835e312

      SHA256

      d22e09acb86be908009f819325910e6ecad7bc0ba35df06f11cd7e8fa9ab5426

      SHA512

      9007815d55ca0b7dcf3c3aa0398b20ede84d9d141463f2c99ed62f87225e5d15043afbd1af3745247e57ffdd5f522e5aabab21ca7637699645ec477432895e58

    • memory/1440-109-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1440-110-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1440-112-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB