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
    10/03/2023, 17:54

General

  • Target

    MC12473488114082366715_202303081720.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\MC12473488114082366715_202303081720.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:2024
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\185542.tmp"
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1792
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Users\Admin\AppData\Local\Temp\185542.tmp"
        3⤵
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:992
        • C:\Windows\system32\regsvr32.exe
          C:\Windows\system32\regsvr32.exe "C:\Windows\system32\LlgFyzdScTLS\JZjXnkQy.dll"
          4⤵
            PID:268
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        2⤵
          PID:1304

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\185542.tmp

        Filesize

        543.7MB

        MD5

        1cd2550e072ec2792339b133005549ed

        SHA1

        c2839a8bc63517bcee9ec16a222690e0f8aa3a74

        SHA256

        af9f8a5c3e4edb4798c25b6fe3e41eeba5d4a41782dbf81a7ba5b3a93652a02a

        SHA512

        e77442d144cad2635a3078a5359b24d9febc164fdfb6424cff5b4d02775ece2df3bdf6575170a9eec9b1d3ce22370efb726c9c611db86fac8d530ce2e9a7903e

      • C:\Users\Admin\AppData\Local\Temp\185546.zip

        Filesize

        867KB

        MD5

        6c839d892fef2f37d973ca28ce5e7a3b

        SHA1

        175ee07dc770ad81455d1f95152f1ae07e875e0e

        SHA256

        b2f19314b692f584203e6711e8d54f32b91a7864adbd203a4eaf6785042d47d9

        SHA512

        18a1ffa1876554a0e7716cbe5d77ce26a373aeb16992986bb8baaece2af502b576d7001a4271ceda09cec6fbbe750c06c8d40d4449ff8b52d01a924a49462af7

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

        Filesize

        20KB

        MD5

        d6789e25d494c3e76c0010a679b440e8

        SHA1

        0c6b58c132b32b9943b430551b298ef56797dc36

        SHA256

        43985fc8a9f991c877ce6cdd2b062e4ff5b426dfe86553b711cdd17fc3b39a58

        SHA512

        5a0097ba1df0871df82fe8d17e9aa70117edcb14e04a3eb315d97af4414a5f7f5b2b78cc163339a49dd3f1fd385d4148e2be1903b95e81b2ea9851f7ffbc251f

      • \Users\Admin\AppData\Local\Temp\185542.tmp

        Filesize

        543.7MB

        MD5

        1cd2550e072ec2792339b133005549ed

        SHA1

        c2839a8bc63517bcee9ec16a222690e0f8aa3a74

        SHA256

        af9f8a5c3e4edb4798c25b6fe3e41eeba5d4a41782dbf81a7ba5b3a93652a02a

        SHA512

        e77442d144cad2635a3078a5359b24d9febc164fdfb6424cff5b4d02775ece2df3bdf6575170a9eec9b1d3ce22370efb726c9c611db86fac8d530ce2e9a7903e

      • \Users\Admin\AppData\Local\Temp\185542.tmp

        Filesize

        543.7MB

        MD5

        1cd2550e072ec2792339b133005549ed

        SHA1

        c2839a8bc63517bcee9ec16a222690e0f8aa3a74

        SHA256

        af9f8a5c3e4edb4798c25b6fe3e41eeba5d4a41782dbf81a7ba5b3a93652a02a

        SHA512

        e77442d144cad2635a3078a5359b24d9febc164fdfb6424cff5b4d02775ece2df3bdf6575170a9eec9b1d3ce22370efb726c9c611db86fac8d530ce2e9a7903e

      • memory/992-1264-0x00000000002B0000-0x00000000002B1000-memory.dmp

        Filesize

        4KB

      • memory/2024-77-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-84-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-59-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-60-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-61-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-63-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-62-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-65-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-66-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-67-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-69-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-71-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-70-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-72-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-74-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-75-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-76-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-78-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-57-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-79-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-80-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-82-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-83-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-58-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-85-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-86-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-87-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-89-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-91-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-90-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-92-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-94-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-95-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-96-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-97-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-93-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-88-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-81-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-98-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-73-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-54-0x000000005FFF0000-0x0000000060000000-memory.dmp

        Filesize

        64KB

      • memory/2024-68-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-64-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-99-0x0000000000360000-0x0000000000460000-memory.dmp

        Filesize

        1024KB

      • memory/2024-1072-0x00000000061A0000-0x00000000061A1000-memory.dmp

        Filesize

        4KB