Analysis

  • max time kernel
    121s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    04/02/2024, 16:17

General

  • Target

    uninstall.exe

  • Size

    285KB

  • MD5

    7083abe46a8e01c850d09c7ba67ea23f

  • SHA1

    99ddb80a7341ce81338affcfc085a88c7451854f

  • SHA256

    e8212da8f2dc78e077ff5267f3fad800a42844c4ea33f620fa78c028c586612c

  • SHA512

    681b7ceeef78b4a7987f36ef4903f5811423da3e22ca9dcc7e05193836b0a17a949d41addc7d0fe3adc5059f2fea966da693b08b04e7e256bf87d16a6d44abb2

  • SSDEEP

    6144:Ee347GmpeZH+zpyuuz6GZkDOJ/7OafSH5KmrWym09x1Q:qGueZHkwuPikQ7lKH5p5H9x1Q

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 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 4 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\uninstall.exe
    "C:\Users\Admin\AppData\Local\Temp\uninstall.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2532
    • 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:2544

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          285KB

          MD5

          7083abe46a8e01c850d09c7ba67ea23f

          SHA1

          99ddb80a7341ce81338affcfc085a88c7451854f

          SHA256

          e8212da8f2dc78e077ff5267f3fad800a42844c4ea33f620fa78c028c586612c

          SHA512

          681b7ceeef78b4a7987f36ef4903f5811423da3e22ca9dcc7e05193836b0a17a949d41addc7d0fe3adc5059f2fea966da693b08b04e7e256bf87d16a6d44abb2

        • \Users\Admin\AppData\Local\Temp\nsy2B17.tmp\aminsis.dll

          Filesize

          559KB

          MD5

          51ba1095f0ae45a2d444bea506cb9ad4

          SHA1

          038a5d53d055a6d440bd2c8864c2f51db206c5e5

          SHA256

          b620091bf9973e807e12155d2247a6d233b5d13ec38c426675470ab4b26f0539

          SHA512

          f5fe2dd0f19bcaab47540ceedbec71f7f7c5b833c8772c097594c458e5f1101fe9feb849812b65c175055f71dfb13f11c4ad94fef42cd66f247413e453de3361

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

          Filesize

          103KB

          MD5

          addd0a9f634c85460b648f5eb9b4302d

          SHA1

          096d9b53eafa77c821ed1ec7dcd77097e33f266c

          SHA256

          39fffa6bc3eaa9d05fb0445b85136aa4c72e4fa1a8ee3de234956c4eceb5575e

          SHA512

          3796b258008b065c1317df1cfac824f851b6ffe8efff145b54a1b429edd72cbf9a49d0114691ae1a80d779f66ef7f97a033cfe518cf2f134267d2d0d9a304e2c