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Analysis

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

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/03/2024, 07:39

General

  • Target

    80718aafbc19bbeafb446ac3ab9a7bf2ee51751e30d6ba61fbdff335cf0e1258.exe

  • Size

    2.9MB

  • MD5

    86f92ef5fbd5100c717eedb6e23c3562

  • SHA1

    b3beac8364288165bc7792b2ec74ea8b6185bda6

  • SHA256

    80718aafbc19bbeafb446ac3ab9a7bf2ee51751e30d6ba61fbdff335cf0e1258

  • SHA512

    5be42af88559e727cf931b3e44d656e04d613da8c70add8fd141551f233d5cdb97aad85c87bcc2800b49674d21bd627248466e036c37003eb1916549a86bf566

  • SSDEEP

    49152:SljEr16EWHjJf8og0uFOw9mwj9s+Qjwi/PElh4Wn5FjMnkIyYwGi1Mzm70:Is6fyF4+SGlhn5akISazm70

Malware Config

Signatures

  • Detect Neshta payload 16 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • UPX dump on OEP (original entry point) 3 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 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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).

  • Program crash 1 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\80718aafbc19bbeafb446ac3ab9a7bf2ee51751e30d6ba61fbdff335cf0e1258.exe
    "C:\Users\Admin\AppData\Local\Temp\80718aafbc19bbeafb446ac3ab9a7bf2ee51751e30d6ba61fbdff335cf0e1258.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:432
    • C:\Users\Admin\AppData\Local\Temp\3582-490\80718aafbc19bbeafb446ac3ab9a7bf2ee51751e30d6ba61fbdff335cf0e1258.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\80718aafbc19bbeafb446ac3ab9a7bf2ee51751e30d6ba61fbdff335cf0e1258.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:1616
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1616 -s 676
        3⤵
        • Program crash
        PID:4592
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1616 -ip 1616
    1⤵
      PID:3896
    • 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=4068 --field-trial-handle=2236,i,5367110156796017614,12594004256180761011,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:4668

      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\80718aafbc19bbeafb446ac3ab9a7bf2ee51751e30d6ba61fbdff335cf0e1258.exe

        Filesize

        2.8MB

        MD5

        9bacca8d6a1d75655cdd4833475d71a9

        SHA1

        2988e7dc425edb68ff92ff4a0b409d1c504af6f0

        SHA256

        0d5be609a320a18aa7809257cf3f87202af6ad44b42ac4c78849fe3b701afd2c

        SHA512

        3dd7c3f34797c1cf1c746169a3c8df45844f55b3cf3dd41e2c9937549aa0d15cc3be749ba875cc0c7b79357e40c77fff990feefbd02388ba16fda7e7f3d53675

      • memory/432-124-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/432-127-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/432-13-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/432-29-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/432-100-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/432-123-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/432-134-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/432-125-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/432-126-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/432-133-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/432-128-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/432-129-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/432-130-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/432-131-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/432-132-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/1616-14-0x0000000000400000-0x0000000000D66000-memory.dmp

        Filesize

        9.4MB

      • memory/1616-11-0x0000000000400000-0x0000000000D66000-memory.dmp

        Filesize

        9.4MB