Analysis

  • max time kernel
    110s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    15-03-2023 05:15

General

  • Target

    Electronic form Dt 03.07.2023.doc

  • Size

    503.3MB

  • MD5

    1dbc044bf76ca7d83fb1fb1b8429944e

  • SHA1

    49e942747cb574be72c089ab37c24a7f74c43e7f

  • SHA256

    867d37e39eca966e299f66134f34111d71994322ca258764f52a6bb6cbe3de62

  • SHA512

    dcb3c7147bb35ba73d525b68b0e6ea098901c42fc4f7a686fd7292aa7e88d748c91a3683ecae1e0aa8091bc2778aa60bd72553d40ffb17cb530ea4577b724133

  • 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\Electronic form Dt 03.07.2023.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:1676
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\061652.tmp"
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1172
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Users\Admin\AppData\Local\Temp\061652.tmp"
        3⤵
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1052
        • C:\Windows\system32\regsvr32.exe
          C:\Windows\system32\regsvr32.exe "C:\Windows\system32\JdDkvnHIM\pVxZHglg.dll"
          4⤵
            PID:1700
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        2⤵
          PID:1824

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Defense Evasion

      Modify Registry

      1
      T1112

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\061652.tmp
        Filesize

        543.7MB

        MD5

        1cd2550e072ec2792339b133005549ed

        SHA1

        c2839a8bc63517bcee9ec16a222690e0f8aa3a74

        SHA256

        af9f8a5c3e4edb4798c25b6fe3e41eeba5d4a41782dbf81a7ba5b3a93652a02a

        SHA512

        e77442d144cad2635a3078a5359b24d9febc164fdfb6424cff5b4d02775ece2df3bdf6575170a9eec9b1d3ce22370efb726c9c611db86fac8d530ce2e9a7903e

      • C:\Users\Admin\AppData\Local\Temp\061655.zip
        Filesize

        867KB

        MD5

        6c839d892fef2f37d973ca28ce5e7a3b

        SHA1

        175ee07dc770ad81455d1f95152f1ae07e875e0e

        SHA256

        b2f19314b692f584203e6711e8d54f32b91a7864adbd203a4eaf6785042d47d9

        SHA512

        18a1ffa1876554a0e7716cbe5d77ce26a373aeb16992986bb8baaece2af502b576d7001a4271ceda09cec6fbbe750c06c8d40d4449ff8b52d01a924a49462af7

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

        20KB

        MD5

        cdaddf573b5a7d412c7272687d719266

        SHA1

        8b92f109323c357e1a0ee8c27f17e604eb5ca056

        SHA256

        7324e0c6927cf87949a3b0e7938224bed39c883613d8db57d504430d7cb90992

        SHA512

        1496fc62a9399b884225d111967a86253f28fdb40633a8c61e6582bee3f060a4b88a938b2983ad5d91d40e7b8fd9c2e19aaab77f86ddd8e571652bce50240056

      • \Users\Admin\AppData\Local\Temp\061652.tmp
        Filesize

        543.7MB

        MD5

        1cd2550e072ec2792339b133005549ed

        SHA1

        c2839a8bc63517bcee9ec16a222690e0f8aa3a74

        SHA256

        af9f8a5c3e4edb4798c25b6fe3e41eeba5d4a41782dbf81a7ba5b3a93652a02a

        SHA512

        e77442d144cad2635a3078a5359b24d9febc164fdfb6424cff5b4d02775ece2df3bdf6575170a9eec9b1d3ce22370efb726c9c611db86fac8d530ce2e9a7903e

      • \Users\Admin\AppData\Local\Temp\061652.tmp
        Filesize

        543.7MB

        MD5

        1cd2550e072ec2792339b133005549ed

        SHA1

        c2839a8bc63517bcee9ec16a222690e0f8aa3a74

        SHA256

        af9f8a5c3e4edb4798c25b6fe3e41eeba5d4a41782dbf81a7ba5b3a93652a02a

        SHA512

        e77442d144cad2635a3078a5359b24d9febc164fdfb6424cff5b4d02775ece2df3bdf6575170a9eec9b1d3ce22370efb726c9c611db86fac8d530ce2e9a7903e

      • memory/1052-1268-0x0000000000120000-0x0000000000121000-memory.dmp
        Filesize

        4KB

      • memory/1676-1086-0x0000000005AD0000-0x0000000005BD0000-memory.dmp
        Filesize

        1024KB

      • memory/1676-1133-0x0000000005AD0000-0x0000000005BD0000-memory.dmp
        Filesize

        1024KB

      • memory/1676-1128-0x0000000005AD0000-0x0000000005BD0000-memory.dmp
        Filesize

        1024KB

      • memory/1676-1109-0x0000000005AD0000-0x0000000005BD0000-memory.dmp
        Filesize

        1024KB

      • memory/1676-1089-0x0000000005AD0000-0x0000000005BD0000-memory.dmp
        Filesize

        1024KB

      • memory/1676-54-0x000000005FFF0000-0x0000000060000000-memory.dmp
        Filesize

        64KB

      • memory/1676-1269-0x0000000006200000-0x0000000006201000-memory.dmp
        Filesize

        4KB

      • memory/1676-1072-0x0000000006200000-0x0000000006201000-memory.dmp
        Filesize

        4KB

      • memory/1700-1271-0x00000000001F0000-0x00000000001F1000-memory.dmp
        Filesize

        4KB