Analysis

  • max time kernel
    143s
  • max time network
    129s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/08/2024, 01:46

General

  • Target

    virussign.exe

  • Size

    133KB

  • MD5

    7da884a3a469e63668849916c1099053

  • SHA1

    13860d53a579f76427545e60eab870923065ec7f

  • SHA256

    13cde81b212acc3314cf406e8b22bf641e7fde481365f982ebeac3bd8094c26e

  • SHA512

    25a15d85cd8cb7ab96a6433a46bcf5e4e9388055290a730878b84a01b71d3a3167ac7f7f745942e1d729db87ea4d66a4b76f7cd3d6999bc2433c47272155824f

  • SSDEEP

    3072:lRnLy8MWmJiv1inJRqxlffsSFNJz9SuaKC8Dr:lpZ9OJRyf/HIKC8n

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • NSIS installer 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\virussign.exe
    "C:\Users\Admin\AppData\Local\Temp\virussign.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:404
    • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
      "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:5108

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

    Filesize

    133KB

    MD5

    7da884a3a469e63668849916c1099053

    SHA1

    13860d53a579f76427545e60eab870923065ec7f

    SHA256

    13cde81b212acc3314cf406e8b22bf641e7fde481365f982ebeac3bd8094c26e

    SHA512

    25a15d85cd8cb7ab96a6433a46bcf5e4e9388055290a730878b84a01b71d3a3167ac7f7f745942e1d729db87ea4d66a4b76f7cd3d6999bc2433c47272155824f