Analysis

  • max time kernel
    122s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    08/03/2023, 02:58

General

  • Target

    IO-7777 report.doc

  • Size

    527.3MB

  • MD5

    034ac24d760c3e946b044c12032b40d9

  • SHA1

    04d3e42cad8f0a4005589d7a53d067df324768b9

  • SHA256

    4ec23d327a426c1b002c2c0ecebb54685b314ae3011c6978cefac00157ffc828

  • SHA512

    356a988864544d543ac7cdcc233535b86c772a03860463e3169e5c78f1efcd2782b840cdeb78667e43d4d16640a46dbc74cbb83a439d538d00a8e5d572f5297b

  • SSDEEP

    6144:xPn4VZXbatu7MDogsDkHS50LdfcGcbz1f5M9KTFrMpSlMK3Ru+Q28:xP4PbNMkgg3Ru+x

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Loads dropped DLL 2 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
  • Script User-Agent 1 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 23 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\IO-7777 report.doc"
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1808
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\035850.tmp"
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1908
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Users\Admin\AppData\Local\Temp\035850.tmp"
        3⤵
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2028
        • C:\Windows\system32\regsvr32.exe
          C:\Windows\system32\regsvr32.exe "C:\Windows\system32\QywNBBLspJg\kHwyAukXbGPTBngj.dll"
          4⤵
            PID:592
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        2⤵
          PID:1852

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            • C:\Users\Admin\AppData\Local\Temp\035850.tmp

              Filesize

              535.7MB

              MD5

              49d805bdd67f596cc1e3ec542257b004

              SHA1

              c5917591ff50ab18122898a38807c188ec58a672

              SHA256

              82c686354cb49727b40f46546e791eafe90ba6a58912a638a43105045e55dc3c

              SHA512

              697256477705b77f6e2df89f35d2e7b5256ab3d60283383be2361b210d4deafa4734f949cfcd160ba915958414881c69e283b0530dfedab5303e1d483befe877

            • C:\Users\Admin\AppData\Local\Temp\035854.zip

              Filesize

              871KB

              MD5

              586c64b6fd7bcf2c5a553612c3b21e45

              SHA1

              f52362a551e938b7508a8efc620335ff05a171ac

              SHA256

              3bc46bd946c948b6b7c7d1cc1280510ae8a7937356fc96c98fb4f1aab23ba1ba

              SHA512

              18c1fdcaa636a0a8b9647f490707c6367b81dff18b8124fb3c7c94a3821a3c678f0357763980e2cd14edbd344d265798cca4dde1dac83a02282ee900cbe631d3

            • C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm

              Filesize

              20KB

              MD5

              0df76e43ff778634ed42102ebd0d27c8

              SHA1

              f6967b498d48272f4597719a1c3e8f38000ee6b2

              SHA256

              d64a7bfd7424da634a1783d333cc64325f1771f66a2e79432daf3a144f770d35

              SHA512

              6caec7406b667eb8b5fd7cc4179452504fc717de32485c9e54eae488fc0dd552fe8a773b60ac78b0761f2e80c890330d1dedb0cff724a0653737c59832615037

            • \Users\Admin\AppData\Local\Temp\035850.tmp

              Filesize

              535.7MB

              MD5

              49d805bdd67f596cc1e3ec542257b004

              SHA1

              c5917591ff50ab18122898a38807c188ec58a672

              SHA256

              82c686354cb49727b40f46546e791eafe90ba6a58912a638a43105045e55dc3c

              SHA512

              697256477705b77f6e2df89f35d2e7b5256ab3d60283383be2361b210d4deafa4734f949cfcd160ba915958414881c69e283b0530dfedab5303e1d483befe877

            • \Users\Admin\AppData\Local\Temp\035850.tmp

              Filesize

              535.7MB

              MD5

              49d805bdd67f596cc1e3ec542257b004

              SHA1

              c5917591ff50ab18122898a38807c188ec58a672

              SHA256

              82c686354cb49727b40f46546e791eafe90ba6a58912a638a43105045e55dc3c

              SHA512

              697256477705b77f6e2df89f35d2e7b5256ab3d60283383be2361b210d4deafa4734f949cfcd160ba915958414881c69e283b0530dfedab5303e1d483befe877

            • memory/592-1269-0x00000000002F0000-0x00000000002F1000-memory.dmp

              Filesize

              4KB

            • memory/1808-78-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-83-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-61-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-59-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-62-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-63-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-57-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-64-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-67-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-68-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-65-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-69-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-71-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-72-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-73-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-74-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-75-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-76-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-77-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-79-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-58-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-80-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-81-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-60-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-85-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-87-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-88-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-89-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-86-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-92-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-91-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-94-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-95-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-96-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-97-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-93-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-90-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-84-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-98-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-82-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-70-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-66-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-99-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-110-0x00000000005E0000-0x00000000006E0000-memory.dmp

              Filesize

              1024KB

            • memory/1808-1077-0x00000000061C0000-0x00000000061C1000-memory.dmp

              Filesize

              4KB

            • memory/1808-1271-0x00000000061C0000-0x00000000061C1000-memory.dmp

              Filesize

              4KB

            • memory/1808-54-0x000000005FFF0000-0x0000000060000000-memory.dmp

              Filesize

              64KB

            • memory/2028-1264-0x0000000000450000-0x0000000000451000-memory.dmp

              Filesize

              4KB