Analysis

  • max time kernel
    144s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/02/2024, 16:21

General

  • Target

    uninstall.exe

  • Size

    289KB

  • MD5

    2d24ab8fe6b6e95040936ebe8a1ddc7a

  • SHA1

    1f63bdae22e3ca7d6344cc06448b712503016cdb

  • SHA256

    f87582af2ae7fc48c78e4d06c51f4bfbc254674a5c060226000da84916073961

  • SHA512

    5879115b7a0474f66c8f62558de7305ec0522b8b523cda798f1fdc862d8ef16a5cc9220b9641959031a41d31e2c7c73d4ede80754551f99d9dda55d332be742b

  • SSDEEP

    6144:Ue34/mkRg4l8ai5PQtTZ763J8eWW43YLYjn5uO7D32fuCa7Bm1:eVq4OaQQTYJ8eP4/L5uO7D3f5BE

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Enumerates physical storage devices 1 TTPs

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

  • NSIS installer 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\uninstall.exe
    "C:\Users\Admin\AppData\Local\Temp\uninstall.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4432
    • 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
      • Loads dropped DLL
      PID:4560

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\nsx665C.tmp\aminsis.dll

          Filesize

          567KB

          MD5

          450753ad96785a240a39deccab3af0d0

          SHA1

          21c544064d2ffa6444508268ce258a330d459fc5

          SHA256

          1c371dcc6c3428ea98fb0d2dcb612b4ebc731f3ed72e683c8e33058cd2a952d3

          SHA512

          c41b834f4228b7668316095569c836b4e0d55c5fbf310c65b0e0453ef0e74a3ce8f9357cea90b80f6590f85dd7708eeb4eec27518811ea4aab20c0e7f5643dab

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

          Filesize

          289KB

          MD5

          2d24ab8fe6b6e95040936ebe8a1ddc7a

          SHA1

          1f63bdae22e3ca7d6344cc06448b712503016cdb

          SHA256

          f87582af2ae7fc48c78e4d06c51f4bfbc254674a5c060226000da84916073961

          SHA512

          5879115b7a0474f66c8f62558de7305ec0522b8b523cda798f1fdc862d8ef16a5cc9220b9641959031a41d31e2c7c73d4ede80754551f99d9dda55d332be742b