Analysis

  • max time kernel
    187s
  • max time network
    209s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    11/06/2022, 18:31

General

  • Target

    259f205fe9a1f92bb1edd9afcc9cd6832e07b9ed858dd0d14dac3aaaa459084c.docm

  • Size

    680KB

  • MD5

    f74d8ea669f1d0d933f93fdd56307d8a

  • SHA1

    b84fed3454dc4ff366355a140817b460dc97fed3

  • SHA256

    259f205fe9a1f92bb1edd9afcc9cd6832e07b9ed858dd0d14dac3aaaa459084c

  • SHA512

    06062c65e36c849b8b5b376e1d299cfdca5418926d995c66db760f2dc2136ed024fdf020c085c85f3ae096d30f43fde74150703b4e663d6b3eb3478f063bb9ce

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\259f205fe9a1f92bb1edd9afcc9cd6832e07b9ed858dd0d14dac3aaaa459084c.docm"
    1⤵
    • Loads dropped DLL
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1376
    • C:\ProgramData\Memsys\ms.exe
      C:\ProgramData\Memsys\ms.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      PID:944
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1380
    • C:\Windows\system32\wbem\WmiApSrv.exe
      C:\Windows\system32\wbem\WmiApSrv.exe
      1⤵
        PID:780

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • C:\ProgramData\Memsys\ms.exe

        Filesize

        321KB

        MD5

        9a5d1c7ad2013e8cc2af40b15f52c603

        SHA1

        c044a1df2ec140b76448cb2169b42864d57baeef

        SHA256

        9777eef17d35f36a40d078f37ed10991366d369296f3db6fde00685c31044404

        SHA512

        2eb7d9a8c72f2c20c59f6413aa8c66fabf3f0d9ab2f14a42141cdc21a5e0a3f297be35bd20e23c9e3124584b75ff753e5ab017a870c87d1ca877103c8d626e03

      • \ProgramData\Memsys\ms.exe

        Filesize

        321KB

        MD5

        9a5d1c7ad2013e8cc2af40b15f52c603

        SHA1

        c044a1df2ec140b76448cb2169b42864d57baeef

        SHA256

        9777eef17d35f36a40d078f37ed10991366d369296f3db6fde00685c31044404

        SHA512

        2eb7d9a8c72f2c20c59f6413aa8c66fabf3f0d9ab2f14a42141cdc21a5e0a3f297be35bd20e23c9e3124584b75ff753e5ab017a870c87d1ca877103c8d626e03

      • \ProgramData\Memsys\ms.exe

        Filesize

        321KB

        MD5

        9a5d1c7ad2013e8cc2af40b15f52c603

        SHA1

        c044a1df2ec140b76448cb2169b42864d57baeef

        SHA256

        9777eef17d35f36a40d078f37ed10991366d369296f3db6fde00685c31044404

        SHA512

        2eb7d9a8c72f2c20c59f6413aa8c66fabf3f0d9ab2f14a42141cdc21a5e0a3f297be35bd20e23c9e3124584b75ff753e5ab017a870c87d1ca877103c8d626e03

      • memory/1376-61-0x00000000006ED000-0x00000000006F1000-memory.dmp

        Filesize

        16KB

      • memory/1376-68-0x00000000006ED000-0x00000000006F1000-memory.dmp

        Filesize

        16KB

      • memory/1376-59-0x00000000006ED000-0x00000000006F1000-memory.dmp

        Filesize

        16KB

      • memory/1376-54-0x0000000072841000-0x0000000072844000-memory.dmp

        Filesize

        12KB

      • memory/1376-62-0x00000000006ED000-0x00000000006F1000-memory.dmp

        Filesize

        16KB

      • memory/1376-63-0x00000000006ED000-0x00000000006F1000-memory.dmp

        Filesize

        16KB

      • memory/1376-64-0x00000000006ED000-0x00000000006F1000-memory.dmp

        Filesize

        16KB

      • memory/1376-65-0x00000000006ED000-0x00000000006F1000-memory.dmp

        Filesize

        16KB

      • memory/1376-66-0x00000000006ED000-0x00000000006F1000-memory.dmp

        Filesize

        16KB

      • memory/1376-67-0x00000000006ED000-0x00000000006F1000-memory.dmp

        Filesize

        16KB

      • memory/1376-69-0x00000000006ED000-0x00000000006F1000-memory.dmp

        Filesize

        16KB

      • memory/1376-60-0x00000000006ED000-0x00000000006F1000-memory.dmp

        Filesize

        16KB

      • memory/1376-70-0x00000000006ED000-0x00000000006F1000-memory.dmp

        Filesize

        16KB

      • memory/1376-81-0x00000000006ED000-0x00000000006F1000-memory.dmp

        Filesize

        16KB

      • memory/1376-92-0x00000000006ED000-0x00000000006F1000-memory.dmp

        Filesize

        16KB

      • memory/1376-103-0x00000000006ED000-0x00000000006F1000-memory.dmp

        Filesize

        16KB

      • memory/1376-114-0x00000000006ED000-0x00000000006F1000-memory.dmp

        Filesize

        16KB

      • memory/1376-58-0x00000000712AD000-0x00000000712B8000-memory.dmp

        Filesize

        44KB

      • memory/1376-57-0x00000000754A1000-0x00000000754A3000-memory.dmp

        Filesize

        8KB

      • memory/1376-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

        Filesize

        64KB

      • memory/1376-55-0x00000000702C1000-0x00000000702C3000-memory.dmp

        Filesize

        8KB

      • memory/1376-173-0x00000000712AD000-0x00000000712B8000-memory.dmp

        Filesize

        44KB

      • memory/1376-177-0x00000000712AD000-0x00000000712B8000-memory.dmp

        Filesize

        44KB