Analysis

  • max time kernel
    146s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/01/2024, 08:17

General

  • Target

    7c9dc9f5c21116aa751c09e3a7f9c190.exe

  • Size

    50KB

  • MD5

    7c9dc9f5c21116aa751c09e3a7f9c190

  • SHA1

    fc5a13b11bda2f9f3b9ba40af6f623c0a4ba19fe

  • SHA256

    262c3aa7924dbf86e0c1fa4950c8317ffcaec961ece8a59b568e354456eea795

  • SHA512

    9dc444910de2f511cfcc26ded80bf33f8bae7177b94dc9fbe3f8c003a70f124eb9c9bea20c9a152e9d5a1169648cdd35dfd2b811165db6aa25d3c2b8c4a266dd

  • SSDEEP

    768:X8Q2ZDX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIom46+IOgHdQ7o2tIhA7O9M1:s9Z3KcR4mjD9r8226+IO02tINMwuCI

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Modifies system certificate store 2 TTPs 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7c9dc9f5c21116aa751c09e3a7f9c190.exe
    "C:\Users\Admin\AppData\Local\Temp\7c9dc9f5c21116aa751c09e3a7f9c190.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4908
    • C:\Users\Admin\AppData\Local\Temp\UpwGIxmskBdk9OT.exe
      C:\Users\Admin\AppData\Local\Temp\UpwGIxmskBdk9OT.exe
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      PID:2840
    • C:\Windows\CTS.exe
      "C:\Windows\CTS.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:4920

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml

          Filesize

          358KB

          MD5

          c78a8de8257aa6776f3263f63b4113b6

          SHA1

          227a770eb08ae08c86e2f352bd4bca278decce47

          SHA256

          100f01d66578b02053efaf584edbdcd8e8628c133934ccda7d17b15e0f96e1f2

          SHA512

          a6fd160d6b4c58c6ddbd100298a596f02b377bd2a7d6cdeb81f71ff4dce98de8c7c176a8aee64348cf74a4a95b0950f6ea4c0c7ad01e4098468876f001c25bb8

        • C:\Users\Admin\AppData\Local\Temp\UpwGIxmskBdk9OT.exe

          Filesize

          15KB

          MD5

          92f9de5aaf4021b73961e14303746f95

          SHA1

          331b792e347ebaf6b6b4c9ac65d742061e1a9f0a

          SHA256

          13c921999e5ff273007a610a8521bbc77d884b41d9cbbd41e045b3497909659c

          SHA512

          314749d46a3584213e55c7030e087e06f1e5bc5fbb8f99210a4e3014b9f44f3be7e791f48c570dd0abaf73584322ebb6be0d2ea5dbbfe343245cced22b172225

        • C:\Windows\CTS.exe

          Filesize

          35KB

          MD5

          93e5f18caebd8d4a2c893e40e5f38232

          SHA1

          fd55c4e6bcd108bce60ea719c06dc9c4d0adafa6

          SHA256

          a66c4b98becac2f69cb107cd087d7a2ca9ef511bc3b83367b1f440f11dd159a8

          SHA512

          986583610d27caae2080834301d072557c5d2c85e33f0d19ab1245d7eae8db146397461572ddb3d491be16f3af210720d54267dac838fdad8fe34afa3d6b7f54

        • memory/2840-23-0x00000000751A0000-0x0000000075751000-memory.dmp

          Filesize

          5.7MB

        • memory/2840-25-0x00000000751A0000-0x0000000075751000-memory.dmp

          Filesize

          5.7MB

        • memory/2840-26-0x00000000019D0000-0x00000000019E0000-memory.dmp

          Filesize

          64KB

        • memory/2840-50-0x00000000751A0000-0x0000000075751000-memory.dmp

          Filesize

          5.7MB

        • memory/4908-0-0x0000000000BE0000-0x0000000000BF7000-memory.dmp

          Filesize

          92KB

        • memory/4908-8-0x0000000000BE0000-0x0000000000BF7000-memory.dmp

          Filesize

          92KB

        • memory/4920-9-0x00000000007D0000-0x00000000007E7000-memory.dmp

          Filesize

          92KB

        • memory/4920-51-0x00000000007D0000-0x00000000007E7000-memory.dmp

          Filesize

          92KB