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Analysis

  • max time kernel
    154s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/03/2024, 02:36

General

  • Target

    d71f8937c26b1f76a3a6cc1f84ae26e64ce04f587523d431fff176150d7e3653.exe

  • Size

    1.2MB

  • MD5

    a66565b3a57b5fdbfb6286a0250b22c1

  • SHA1

    c2090c10e9f7c95fd61343f403c52eb228c4e977

  • SHA256

    d71f8937c26b1f76a3a6cc1f84ae26e64ce04f587523d431fff176150d7e3653

  • SHA512

    e5638b0a06da2466e7459759550b047d3f61fee32b2dcabeaa2e4bab628be90a2d75bca1e9b58c34576417dc723c605bfec136224710dee63285cfe680dc5567

  • SSDEEP

    24576:FV7Ct+TyBk+By4uPNB3C6llllmQlcukC8CWnsJ:FV7CETyBk+By4u1llllHlNnqs

Malware Config

Signatures

  • Detect Neshta payload 15 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\d71f8937c26b1f76a3a6cc1f84ae26e64ce04f587523d431fff176150d7e3653.exe
    "C:\Users\Admin\AppData\Local\Temp\d71f8937c26b1f76a3a6cc1f84ae26e64ce04f587523d431fff176150d7e3653.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:3956
    • C:\Users\Admin\AppData\Local\Temp\3582-490\d71f8937c26b1f76a3a6cc1f84ae26e64ce04f587523d431fff176150d7e3653.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\d71f8937c26b1f76a3a6cc1f84ae26e64ce04f587523d431fff176150d7e3653.exe"
      2⤵
      • Executes dropped EXE
      PID:4048
  • 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=4112 --field-trial-handle=2292,i,2103142837140538807,15881446839139365070,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:228

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      100KB

      MD5

      e05d3c481065a2b3be272a49c8812b6b

      SHA1

      a4507aeedc11ca2c83f771ae0d03dbf4ffb1b3e2

      SHA256

      f87eb65118abe3d712919b1cba63f8fa827f9a00a27ea1f4892fc0d8833ac75b

      SHA512

      54d697cc649d5b834fac5be1383c75dedfb2e7b36231098bcffbba7a837576cb6ea8042d57a7ab6be4f0236c0ae6be2edea1782b26f646bf5bb1ca241ecdd4f5

    • C:\Users\Admin\AppData\Local\Temp\3582-490\d71f8937c26b1f76a3a6cc1f84ae26e64ce04f587523d431fff176150d7e3653.exe

      Filesize

      1KB

      MD5

      a9a10676135604da871cb94f441b7d00

      SHA1

      1a875fc00f2fbfe6acaa88b2245a5507e16bc6b2

      SHA256

      8dbaa9533adab5c5459aab5faa100829f86e7ae88897e8b84cf4ba64e6574759

      SHA512

      0ba08610926026012f695bbb65a659c5866d14c99be4cb15d1c7928bf886ad44ad5fc45f6ab98c50152cdba4e8a7500c514a1613334a67f40830d6e81aa1474b

    • memory/3956-124-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/3956-126-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/3956-111-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/3956-122-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/3956-123-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/3956-13-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/3956-125-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/3956-28-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/3956-127-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/3956-128-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/3956-129-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/3956-130-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/3956-131-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/3956-132-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB