Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/02/2024, 16:18

General

  • Target

    uninstall.exe

  • Size

    285KB

  • MD5

    8e1e52df79a4d3bd48aa9a6f00a2a323

  • SHA1

    2ebd1bd4c013580304d0647f2c94270e1a9d93bd

  • SHA256

    c9c2f4c68854e7662e9b0e40fbd48a617008dba06df8ef65edc4311845582a41

  • SHA512

    649be0ae3bc503916354c55b177fe71a1f6bb2f4a5ab34cfe664f86fe89bd980a2d664301a5c6fff83cbebdc2801756e977d1897c2656bbb69fa71f8bce40845

  • SSDEEP

    6144:Ee34pYpeZH+zpyuuz6GZkDOJ/7OafSH5KmrWym09x1e:skeZHkwuPikQ7lKH5p5H9x1e

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:464
    • 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:2776

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\nss663D.tmp\aminsis.dll

          Filesize

          559KB

          MD5

          51ba1095f0ae45a2d444bea506cb9ad4

          SHA1

          038a5d53d055a6d440bd2c8864c2f51db206c5e5

          SHA256

          b620091bf9973e807e12155d2247a6d233b5d13ec38c426675470ab4b26f0539

          SHA512

          f5fe2dd0f19bcaab47540ceedbec71f7f7c5b833c8772c097594c458e5f1101fe9feb849812b65c175055f71dfb13f11c4ad94fef42cd66f247413e453de3361

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

          Filesize

          285KB

          MD5

          8e1e52df79a4d3bd48aa9a6f00a2a323

          SHA1

          2ebd1bd4c013580304d0647f2c94270e1a9d93bd

          SHA256

          c9c2f4c68854e7662e9b0e40fbd48a617008dba06df8ef65edc4311845582a41

          SHA512

          649be0ae3bc503916354c55b177fe71a1f6bb2f4a5ab34cfe664f86fe89bd980a2d664301a5c6fff83cbebdc2801756e977d1897c2656bbb69fa71f8bce40845