Analysis

  • max time kernel
    86s
  • max time network
    95s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    31/03/2024, 03:59

General

  • Target

    uninst.exe

  • Size

    140KB

  • MD5

    f32962b1f79d5132fff8267a04b9c46c

  • SHA1

    d7886c2c455b72259281a768bb9d149a1aa44eb7

  • SHA256

    c917c60b1bb35ed4677b1631c3b06574fc034fd45ed901051545396ff74a783c

  • SHA512

    fcc1fad8532eb5c94953a7ed3235de29f83732ed62db5b326c758711610d89befb0cca213a2f3bb15768530ddb3fb2a4483ee1bc9cdec51c5841a6998aebe170

  • SSDEEP

    3072:dnPdzuK8Jdw4TMJw3uXceAu3qPgn2yiG01NiP9roOVkMVoIq5X7o:dnPdudwDzmuPn2yimP99lxn

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\uninst.exe
    "C:\Users\Admin\AppData\Local\Temp\uninst.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2216
    • C:\Users\Admin\AppData\Local\Temp\~nsu1.tmp\Un.exe
      "C:\Users\Admin\AppData\Local\Temp\~nsu1.tmp\Un.exe" _?=C:\Users\Admin\AppData\Local\Temp\
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2456

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\nsm9A2.tmp\LangDLL.dll

          Filesize

          5KB

          MD5

          50016010fb0d8db2bc4cd258ceb43be5

          SHA1

          44ba95ee12e69da72478cf358c93533a9c7a01dc

          SHA256

          32230128c18574c1e860dfe4b17fe0334f685740e27bc182e0d525a8948c9c2e

          SHA512

          ed4cf49f756fbf673449dca20e63dce6d3a612b61f294efc9c3ccebeffa6a1372667932468816d3a7afdb7e5a652760689d8c6d3f331cedee7247404c879a233

        • C:\Users\Admin\AppData\Local\Temp\nsm9A2.tmp\UAC.dll

          Filesize

          14KB

          MD5

          adb29e6b186daa765dc750128649b63d

          SHA1

          160cbdc4cb0ac2c142d361df138c537aa7e708c9

          SHA256

          2f7f8fc05dc4fd0d5cda501b47e4433357e887bbfed7292c028d99c73b52dc08

          SHA512

          b28adcccf0c33660fecd6f95f28f11f793dc9988582187617b4c113fb4e6fdad4cf7694cd8c0300a477e63536456894d119741a940dda09b7df3ff0087a7eada

        • C:\Users\Admin\AppData\Local\Temp\~nsu1.tmp\Un.exe

          Filesize

          140KB

          MD5

          f32962b1f79d5132fff8267a04b9c46c

          SHA1

          d7886c2c455b72259281a768bb9d149a1aa44eb7

          SHA256

          c917c60b1bb35ed4677b1631c3b06574fc034fd45ed901051545396ff74a783c

          SHA512

          fcc1fad8532eb5c94953a7ed3235de29f83732ed62db5b326c758711610d89befb0cca213a2f3bb15768530ddb3fb2a4483ee1bc9cdec51c5841a6998aebe170