Analysis

  • max time kernel
    133s
  • max time network
    146s
  • 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, 16:19

General

  • Target

    uninstall.exe

  • Size

    285KB

  • MD5

    e48660142c8f18cd883fce9e6b8e3f16

  • SHA1

    551e8617ca09efed3323f944bd56c35c17d53bf0

  • SHA256

    5fb692eab4e63266b343906b0a69719025a4e115da8bb94a115b010956daf5f1

  • SHA512

    9a86f1056064f0a5b906db064e98883f1bd889c3afd7f2f3bdeab304829bc7b5d40aad70b78796ffc89ed641b9156f41c8ab505827bd8c96cee6c3496684c1a1

  • SSDEEP

    6144:Ee34repeZH+zpyuuz6GZkDOJ/7OafSH5KmrWym09x1c:K2eZHkwuPikQ7lKH5p5H9x1c

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:2264
    • 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:3764

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\nsl2E30.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

          e48660142c8f18cd883fce9e6b8e3f16

          SHA1

          551e8617ca09efed3323f944bd56c35c17d53bf0

          SHA256

          5fb692eab4e63266b343906b0a69719025a4e115da8bb94a115b010956daf5f1

          SHA512

          9a86f1056064f0a5b906db064e98883f1bd889c3afd7f2f3bdeab304829bc7b5d40aad70b78796ffc89ed641b9156f41c8ab505827bd8c96cee6c3496684c1a1