Analysis

  • max time kernel
    151s
  • max time network
    54s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220722-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220722-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-07-2022 15:53

General

  • Target

    5845a4062cfefc54f41164c7cd2915a8e04146c7f87f432400c80ec8bc50b640.exe

  • Size

    732KB

  • MD5

    ef8aaf198f10369fb083634bd538c63b

  • SHA1

    6d20cf0f6541c4a80a82241accdbc496777009f3

  • SHA256

    5845a4062cfefc54f41164c7cd2915a8e04146c7f87f432400c80ec8bc50b640

  • SHA512

    4caeed1e7dd0e03a68d319f2dcfb8bc1ce47b6d46606a6eca35134ecc0c5a8bddb9501bd4ccec91000d8ee53159804c9d34ab2f7e9d91b43a25406b7d1dc6f0d

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.

  • 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 use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5845a4062cfefc54f41164c7cd2915a8e04146c7f87f432400c80ec8bc50b640.exe
    "C:\Users\Admin\AppData\Local\Temp\5845a4062cfefc54f41164c7cd2915a8e04146c7f87f432400c80ec8bc50b640.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4364
    • C:\Users\Admin\AppData\Local\Temp\5845a4062cfefc54f41164c7cd2915a8e04146c7f87f432400c80ec8bc50b640.exe
      "C:\Users\Admin\AppData\Local\Temp\5845a4062cfefc54f41164c7cd2915a8e04146c7f87f432400c80ec8bc50b640.exe"
      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:4776

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/4364-134-0x0000000002BF0000-0x0000000002BF6000-memory.dmp

    Filesize

    24KB

  • memory/4364-137-0x0000000002BF0000-0x0000000002BF6000-memory.dmp

    Filesize

    24KB

  • memory/4776-135-0x0000000000000000-mapping.dmp

  • memory/4776-136-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4776-138-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4776-139-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4776-140-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB