Analysis

  • max time kernel
    138s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/10/2024, 16:21

General

  • Target

    uninst.exe

  • Size

    196KB

  • MD5

    80b05828a4c0d54e3a3ca2a4cd61492a

  • SHA1

    f27df18439239725862d94450d284a4e41e5384b

  • SHA256

    9b381dcb55d28fcb668b6f9e4209a7b67c332c5179517fb6ba78fd3f701b8bdc

  • SHA512

    b64e6dce7732d57c62236412cc0f4d08bccaef472134a4b905a3cbbb0c0a7b8b49a58bc1660df1b329621b653c333003840e30293077002c48f931b0333542c3

  • SSDEEP

    3072:BQIURTXJw9XG7MY4VwfavMfAIKiUzKEMIwIyFU2kaf5OQW70HTGrBMhSYfAalScH:BseWrnf3IteEryTkaf5OFQzGr2h9ScH

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 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 behavior: EnumeratesProcesses 24 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\uninst.exe
    "C:\Users\Admin\AppData\Local\Temp\uninst.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:880
    • 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⤵
      • Deletes itself
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1132
      • C:\Users\Admin\AppData\Local\Temp\dqwhj_errwd.exe
        "C:\Users\Admin\AppData\Local\Temp\dqwhj_errwd.exe" /uninstallsucc
        3⤵
        • Writes to the Master Boot Record (MBR)
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:1612

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\lander.ini

          Filesize

          409B

          MD5

          edc33c0698acdf92e10e9672ba5c4db2

          SHA1

          8fbed53c547720a3cf9cadbe1b55bf1d465ca3e4

          SHA256

          1a2122161b14e1298e058c6a971b955cfe428c80e565b544fb9a6162e6116d3f

          SHA512

          0e2eab36b2df6684981f4d5468f7210553b74fb27333505490dc43be384fb5b619caf011bb641d47fbbf1b260c2fc877a6ee9ff7b3e20762c6a249d91b2d8d88

        • C:\Users\Admin\AppData\Local\Temp\nsdC1CB.tmp\FindProcDLL.dll

          Filesize

          3KB

          MD5

          8614c450637267afacad1645e23ba24a

          SHA1

          e7b7b09b5bbc13e910aa36316d9cc5fc5d4dcdc2

          SHA256

          0fa04f06a6de18d316832086891e9c23ae606d7784d5d5676385839b21ca2758

          SHA512

          af46cd679097584ff9a1d894a729b6397f4b3af17dff3e6f07bef257bc7e48ffa341d82daf298616cd5df1450fc5ab7435cacb70f27302b6db193f01a9f8391b

        • C:\Users\Admin\AppData\Local\Temp\nsdC1CB.tmp\inetc.dll

          Filesize

          20KB

          MD5

          c498ae64b4971132bba676873978de1e

          SHA1

          92e4009cd776b6c8616d8bffade7668ef3cb3c27

          SHA256

          5552bdde7e4113393f683ef501e4cc84dccc071bdc51391ea7fa3e7c1d49e4e8

          SHA512

          8e5ca35493f749a39ceae6796d2658ba10f7d8d9ceca45bb4365b338fabd1dfa9b9f92e33f50c91b0273e66adfbce4b98b09c15fd2473f8b214ed797462333d7

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

          Filesize

          196KB

          MD5

          80b05828a4c0d54e3a3ca2a4cd61492a

          SHA1

          f27df18439239725862d94450d284a4e41e5384b

          SHA256

          9b381dcb55d28fcb668b6f9e4209a7b67c332c5179517fb6ba78fd3f701b8bdc

          SHA512

          b64e6dce7732d57c62236412cc0f4d08bccaef472134a4b905a3cbbb0c0a7b8b49a58bc1660df1b329621b653c333003840e30293077002c48f931b0333542c3

        • memory/1132-11-0x0000000010000000-0x0000000010003000-memory.dmp

          Filesize

          12KB

        • memory/1132-27-0x0000000010000000-0x0000000010003000-memory.dmp

          Filesize

          12KB