Analysis

  • max time kernel
    142s
  • max time network
    146s
  • 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 22:31

General

  • Target

    5e3385a20d41acedb5a3b93b5a8c76a5.exe

  • Size

    620KB

  • MD5

    5e3385a20d41acedb5a3b93b5a8c76a5

  • SHA1

    c63b1e59b8c08887d0de48ba5149b165091d00f7

  • SHA256

    bb671dbc4bb59548908a3bb9b9bb67c07e059ae50b2d347d04e7786a2e4527e5

  • SHA512

    74abad81d3c5fa2aa3982b99f2cb9bdd1d8b4010bbcc0878f1901069f8872d9d95a10d629651e06a14ced382a81f570f5bdae692bf7467d36a22a39781159abb

Malware Config

Signatures

  • Detect Neshta payload 6 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 use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5e3385a20d41acedb5a3b93b5a8c76a5.exe
    "C:\Users\Admin\AppData\Local\Temp\5e3385a20d41acedb5a3b93b5a8c76a5.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1824
    • C:\Users\Admin\AppData\Local\Temp\5e3385a20d41acedb5a3b93b5a8c76a5.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:1944

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1824-130-0x0000000000FF0000-0x0000000001092000-memory.dmp
    Filesize

    648KB

  • memory/1824-131-0x0000000005F50000-0x00000000064F4000-memory.dmp
    Filesize

    5.6MB

  • memory/1824-132-0x0000000005A80000-0x0000000005B12000-memory.dmp
    Filesize

    584KB

  • memory/1824-133-0x0000000005B20000-0x0000000005BBC000-memory.dmp
    Filesize

    624KB

  • memory/1824-134-0x0000000005A50000-0x0000000005A5A000-memory.dmp
    Filesize

    40KB

  • memory/1944-135-0x0000000000000000-mapping.dmp
  • memory/1944-136-0x0000000000400000-0x000000000042B000-memory.dmp
    Filesize

    172KB

  • memory/1944-137-0x0000000000400000-0x000000000042B000-memory.dmp
    Filesize

    172KB

  • memory/1944-138-0x0000000000400000-0x000000000042B000-memory.dmp
    Filesize

    172KB

  • memory/1944-139-0x0000000000400000-0x000000000042B000-memory.dmp
    Filesize

    172KB

  • memory/1944-140-0x0000000000400000-0x000000000042B000-memory.dmp
    Filesize

    172KB

  • memory/1944-141-0x0000000000400000-0x000000000042B000-memory.dmp
    Filesize

    172KB