Analysis

  • max time kernel
    119s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    28/12/2023, 21:12

General

  • Target

    f8769e4bbec3077ba03b2bd5cd25ff86.exe

  • Size

    120KB

  • MD5

    f8769e4bbec3077ba03b2bd5cd25ff86

  • SHA1

    eaff33115cd6db23b87e52f26148c710d568ef68

  • SHA256

    60cc695e55d28004b7e0887443515c9d517c024f474d50b123e8b7f24eddcfaa

  • SHA512

    1648713cba154f5a5f10b2eae2f94eb9273c306d1c86f939da075fb423e7412b05cc5cfbd0563a9ea8566dddc0d3590d08391e075425267c1fd78d825df36787

  • SSDEEP

    3072:HQIURTXJMeqgKJ+BCzCo+B9RM3eCFjF9Y:HsOgK6okAeCjjY

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f8769e4bbec3077ba03b2bd5cd25ff86.exe
    "C:\Users\Admin\AppData\Local\Temp\f8769e4bbec3077ba03b2bd5cd25ff86.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1708
    • C:\Users\Admin\AppData\Local\Temp\nsy3A54.tmp\downloadmr.exe
      C:\Users\Admin\AppData\Local\Temp\nsy3A54.tmp\downloadmr.exe /u4dc9054e-38b0-4614-bdd5-20605bc06f26 /e2825582
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of SetWindowsHookEx
      PID:824

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\Cab6125.tmp

          Filesize

          65KB

          MD5

          ac05d27423a85adc1622c714f2cb6184

          SHA1

          b0fe2b1abddb97837ea0195be70ab2ff14d43198

          SHA256

          c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

          SHA512

          6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

        • C:\Users\Admin\AppData\Local\Temp\Tar61A5.tmp

          Filesize

          171KB

          MD5

          9c0c641c06238516f27941aa1166d427

          SHA1

          64cd549fb8cf014fcd9312aa7a5b023847b6c977

          SHA256

          4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

          SHA512

          936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

        • C:\Users\Admin\AppData\Local\Temp\nsy3A54.tmp\downloadmr.exe

          Filesize

          126KB

          MD5

          f2fbd22ece27c3decea7336a22f44809

          SHA1

          b076b21eae0d6131b1f8c9e21a3ea884f1bc7f35

          SHA256

          41f8a44fa51b9cdb1b5c97b8dc267f03b4e9eb832a133dc1875958e5e000745a

          SHA512

          b12dea1adad6b36ccdd81db56c6e931e1398b763d3c465c6f7e613feb281f9d206770ab22b0eda7e3d4b538e208f9a33d397365dcfbee2ba87a05f1f4282759f

        • \Users\Admin\AppData\Local\Temp\nsy3A54.tmp\System.dll

          Filesize

          11KB

          MD5

          c17103ae9072a06da581dec998343fc1

          SHA1

          b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

          SHA256

          dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

          SHA512

          d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

        • memory/824-19-0x0000000074360000-0x000000007490B000-memory.dmp

          Filesize

          5.7MB

        • memory/824-20-0x0000000000D10000-0x0000000000D50000-memory.dmp

          Filesize

          256KB

        • memory/824-18-0x0000000074360000-0x000000007490B000-memory.dmp

          Filesize

          5.7MB

        • memory/824-81-0x0000000074360000-0x000000007490B000-memory.dmp

          Filesize

          5.7MB

        • memory/824-82-0x0000000074360000-0x000000007490B000-memory.dmp

          Filesize

          5.7MB

        • memory/824-83-0x0000000000D10000-0x0000000000D50000-memory.dmp

          Filesize

          256KB

        • memory/824-84-0x0000000000D10000-0x0000000000D50000-memory.dmp

          Filesize

          256KB

        • memory/824-85-0x0000000000D10000-0x0000000000D50000-memory.dmp

          Filesize

          256KB

        • memory/824-86-0x0000000000D10000-0x0000000000D50000-memory.dmp

          Filesize

          256KB

        • memory/824-87-0x0000000006E80000-0x0000000006F80000-memory.dmp

          Filesize

          1024KB

        • memory/824-88-0x0000000074360000-0x000000007490B000-memory.dmp

          Filesize

          5.7MB