Analysis

  • max time kernel
    94s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/10/2024, 06:38

General

  • Target

    uninstall.exe

  • Size

    285KB

  • MD5

    f791d3e3d586a0b45eb8e49b0207c66a

  • SHA1

    0cb139456f72e85b7dc80d2bcf3a4b6c6c09b4ba

  • SHA256

    2c0e5dc60c6a798859d9ad092171ee0a96b926026a39a563f641f5efe2d0463e

  • SHA512

    f118105a65491e2460d1b110d7c0bfbecd2affae257bf102ec4a8a5d2de1dd35075b137ac71e2b07426dc60264a16ba5417cd4b73a5cca87507df81a92ff09db

  • SSDEEP

    6144:Ee34KApeZH+zpyuuz6GZkDOJ/7OafSH5KmrWym09x1+:L8eZHkwuPikQ7lKH5p5H9x1+

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 3 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).

  • 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 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⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4928
    • 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
      • System Location Discovery: System Language Discovery
      PID:2988

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\nslD3CC.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

          f791d3e3d586a0b45eb8e49b0207c66a

          SHA1

          0cb139456f72e85b7dc80d2bcf3a4b6c6c09b4ba

          SHA256

          2c0e5dc60c6a798859d9ad092171ee0a96b926026a39a563f641f5efe2d0463e

          SHA512

          f118105a65491e2460d1b110d7c0bfbecd2affae257bf102ec4a8a5d2de1dd35075b137ac71e2b07426dc60264a16ba5417cd4b73a5cca87507df81a92ff09db