Analysis

  • max time kernel
    151s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/03/2024, 22:13

General

  • Target

    8f4648ed61e7e3ad16b7d2bcce0b793e0b67573d7374f70eb3fd92f3fb66d1ce.exe

  • Size

    128KB

  • MD5

    97ce15a2233658834fec3fd31945bff1

  • SHA1

    f3dac38fd5f7f32709097b9d368c449ae316f29a

  • SHA256

    8f4648ed61e7e3ad16b7d2bcce0b793e0b67573d7374f70eb3fd92f3fb66d1ce

  • SHA512

    602bbad57b6f71d796c70d386570caab97b266307d1f1db857034c90ab26698a400839ad6b33d872df085ddb52a99b5282c5d7b107574a84a56b50fbe148e258

  • SSDEEP

    1536:JxqjQ+P04wsmJCncIySoMbF4qRkQroxSTOfyeh+C8zNKx453mScDy7q1gQod:sr85CLlo0vRzroxSNeICp/1Sd

Malware Config

Signatures

  • Detect Neshta payload 13 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 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8f4648ed61e7e3ad16b7d2bcce0b793e0b67573d7374f70eb3fd92f3fb66d1ce.exe
    "C:\Users\Admin\AppData\Local\Temp\8f4648ed61e7e3ad16b7d2bcce0b793e0b67573d7374f70eb3fd92f3fb66d1ce.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:4640
    • C:\Users\Admin\AppData\Local\Temp\3582-490\8f4648ed61e7e3ad16b7d2bcce0b793e0b67573d7374f70eb3fd92f3fb66d1ce.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\8f4648ed61e7e3ad16b7d2bcce0b793e0b67573d7374f70eb3fd92f3fb66d1ce.exe"
      2⤵
      • Executes dropped EXE
      PID:3000
  • 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 --mojo-platform-channel-handle=4036 --field-trial-handle=2676,i,447940133669489189,1353734109898858672,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:64

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe

      Filesize

      2.4MB

      MD5

      8ffc3bdf4a1903d9e28b99d1643fc9c7

      SHA1

      919ba8594db0ae245a8abd80f9f3698826fc6fe5

      SHA256

      8268d3fefe8ca96a25a73690d14bacf644170ab5e9e70d2f8eeb350a4c83f9f6

      SHA512

      0b94ead97374d74eaee87e7614ddd3911d2cf66d4c49abbfd06b02c03e5dd56fd00993b4947e8a4bcd9d891fa39cab18cc6b61efc7d0812e91eb3aea9cd1a427

    • C:\Users\Admin\AppData\Local\Temp\3582-490\8f4648ed61e7e3ad16b7d2bcce0b793e0b67573d7374f70eb3fd92f3fb66d1ce.exe

      Filesize

      88KB

      MD5

      b328001938515e737687b06761840eea

      SHA1

      979d74cb4bcabff3f15501f1d97e05a6e2c9625c

      SHA256

      51e6e691a903f51b0e1e276610f4373923718a718a8e3f765981fb958746466d

      SHA512

      c6dae69248e1bfdbf958ab69d6a199c1b5de0c773ef5b366f7b340795fb9b23c93b3e3ff6bd6a23249470b24dcddb60e15e398be69d3774e1dc60272bc7045c0

    • memory/4640-123-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/4640-14-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/4640-95-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/4640-122-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/4640-13-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/4640-124-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/4640-125-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/4640-126-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/4640-127-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/4640-128-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/4640-129-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/4640-130-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB