Analysis

  • max time kernel
    151s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220721-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-07-2022 22:29

General

  • Target

    5ac3d3497a4f79a3117c4e5b9db33ed1.exe

  • Size

    856KB

  • MD5

    5ac3d3497a4f79a3117c4e5b9db33ed1

  • SHA1

    c158c51009630fbfe942a4e37a791e4cb841dadf

  • SHA256

    2863d59554f71daaca458ebf5f9d290771630f3945b54bef7a5cdc91ed963b6e

  • SHA512

    7be6ace465afbfc08e9a18b9bd8e75f14cc5e359e061748830ab4a29cc5816e3c73fbfa6baee440e7ee73887c4f3200f37a07564318e30bbbab4d452adc2edfa

Malware Config

Signatures

  • Detect Neshta payload 5 IoCs
  • Modifies system executable filetype association 2 TTPs 1 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.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • 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). Likely ransomware behaviour.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5ac3d3497a4f79a3117c4e5b9db33ed1.exe
    "C:\Users\Admin\AppData\Local\Temp\5ac3d3497a4f79a3117c4e5b9db33ed1.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4492
    • C:\Users\Admin\AppData\Local\Temp\5ac3d3497a4f79a3117c4e5b9db33ed1.exe
      "{path}"
      2⤵
        PID:2556
      • C:\Users\Admin\AppData\Local\Temp\5ac3d3497a4f79a3117c4e5b9db33ed1.exe
        "{path}"
        2⤵
        • Modifies system executable filetype association
        • Checks computer location settings
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Modifies registry class
        PID:5008

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2556-135-0x0000000000000000-mapping.dmp

    • memory/4492-130-0x0000000000A70000-0x0000000000B4C000-memory.dmp

      Filesize

      880KB

    • memory/4492-131-0x0000000005A40000-0x0000000005FE4000-memory.dmp

      Filesize

      5.6MB

    • memory/4492-132-0x0000000005530000-0x00000000055C2000-memory.dmp

      Filesize

      584KB

    • memory/4492-133-0x00000000055D0000-0x000000000566C000-memory.dmp

      Filesize

      624KB

    • memory/4492-134-0x00000000054F0000-0x00000000054FA000-memory.dmp

      Filesize

      40KB

    • memory/5008-136-0x0000000000000000-mapping.dmp

    • memory/5008-137-0x0000000000400000-0x000000000042B000-memory.dmp

      Filesize

      172KB

    • memory/5008-138-0x0000000000400000-0x000000000042B000-memory.dmp

      Filesize

      172KB

    • memory/5008-139-0x0000000000400000-0x000000000042B000-memory.dmp

      Filesize

      172KB

    • memory/5008-140-0x0000000000400000-0x000000000042B000-memory.dmp

      Filesize

      172KB

    • memory/5008-141-0x0000000000400000-0x000000000042B000-memory.dmp

      Filesize

      172KB