Analysis

  • max time kernel
    103s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    11-03-2023 04:12

General

  • Target

    7119837663735810013468060.doc

  • Size

    540.3MB

  • MD5

    1cf5cb5bdee9a584ba73a22fc7bc7cf2

  • SHA1

    50e7c8a74ccc3b2622f07abb2370e12500cc1f3b

  • SHA256

    4f9894afb1672d06ab08a4a28264efcadd501eb7fec96b167a8ee73605cf6a32

  • SHA512

    a2fd708ce08771ad53964efec0b736dcbaea1302acff731b45e876a13260474ba22738fd1b2eeee494ebb41a98bbb3d16e6452ea0bd29669c856eb152d8dec08

  • 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\7119837663735810013468060.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:1088
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\051353.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\051353.tmp"
        3⤵
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1712
        • C:\Windows\system32\regsvr32.exe
          C:\Windows\system32\regsvr32.exe "C:\Windows\system32\QZXauH\auusGyv.dll"
          4⤵
            PID:1668
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        2⤵
          PID:1444

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\051353.tmp

        Filesize

        543.7MB

        MD5

        1cd2550e072ec2792339b133005549ed

        SHA1

        c2839a8bc63517bcee9ec16a222690e0f8aa3a74

        SHA256

        af9f8a5c3e4edb4798c25b6fe3e41eeba5d4a41782dbf81a7ba5b3a93652a02a

        SHA512

        e77442d144cad2635a3078a5359b24d9febc164fdfb6424cff5b4d02775ece2df3bdf6575170a9eec9b1d3ce22370efb726c9c611db86fac8d530ce2e9a7903e

      • C:\Users\Admin\AppData\Local\Temp\051356.zip

        Filesize

        867KB

        MD5

        6c839d892fef2f37d973ca28ce5e7a3b

        SHA1

        175ee07dc770ad81455d1f95152f1ae07e875e0e

        SHA256

        b2f19314b692f584203e6711e8d54f32b91a7864adbd203a4eaf6785042d47d9

        SHA512

        18a1ffa1876554a0e7716cbe5d77ce26a373aeb16992986bb8baaece2af502b576d7001a4271ceda09cec6fbbe750c06c8d40d4449ff8b52d01a924a49462af7

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

        Filesize

        20KB

        MD5

        49300f32558e95f120b65d50829d5fc7

        SHA1

        6ccdcec9311690dc311600018efc289158594943

        SHA256

        9faaa0d8ca3bb4fead8871ce16fb5152d19e91dba39fa532b2df589afcc439f9

        SHA512

        4bd83eb359f7f3c9338c078b8d7de6d67a6464580c41af2d477f82caf757279473a7613f00e54b747675cb740394e9a572f0a88a1ca00433231acadb864e9268

      • \Users\Admin\AppData\Local\Temp\051353.tmp

        Filesize

        543.7MB

        MD5

        1cd2550e072ec2792339b133005549ed

        SHA1

        c2839a8bc63517bcee9ec16a222690e0f8aa3a74

        SHA256

        af9f8a5c3e4edb4798c25b6fe3e41eeba5d4a41782dbf81a7ba5b3a93652a02a

        SHA512

        e77442d144cad2635a3078a5359b24d9febc164fdfb6424cff5b4d02775ece2df3bdf6575170a9eec9b1d3ce22370efb726c9c611db86fac8d530ce2e9a7903e

      • \Users\Admin\AppData\Local\Temp\051353.tmp

        Filesize

        543.7MB

        MD5

        1cd2550e072ec2792339b133005549ed

        SHA1

        c2839a8bc63517bcee9ec16a222690e0f8aa3a74

        SHA256

        af9f8a5c3e4edb4798c25b6fe3e41eeba5d4a41782dbf81a7ba5b3a93652a02a

        SHA512

        e77442d144cad2635a3078a5359b24d9febc164fdfb6424cff5b4d02775ece2df3bdf6575170a9eec9b1d3ce22370efb726c9c611db86fac8d530ce2e9a7903e

      • memory/1088-97-0x00000000007E0000-0x00000000008E0000-memory.dmp

        Filesize

        1024KB

      • memory/1088-98-0x00000000007E0000-0x00000000008E0000-memory.dmp

        Filesize

        1024KB

      • memory/1088-86-0x00000000007E0000-0x00000000008E0000-memory.dmp

        Filesize

        1024KB

      • memory/1088-88-0x00000000007E0000-0x00000000008E0000-memory.dmp

        Filesize

        1024KB

      • memory/1088-89-0x00000000007E0000-0x00000000008E0000-memory.dmp

        Filesize

        1024KB

      • memory/1088-90-0x00000000007E0000-0x00000000008E0000-memory.dmp

        Filesize

        1024KB

      • memory/1088-91-0x00000000007E0000-0x00000000008E0000-memory.dmp

        Filesize

        1024KB

      • memory/1088-92-0x00000000007E0000-0x00000000008E0000-memory.dmp

        Filesize

        1024KB

      • memory/1088-93-0x00000000007E0000-0x00000000008E0000-memory.dmp

        Filesize

        1024KB

      • memory/1088-95-0x00000000007E0000-0x00000000008E0000-memory.dmp

        Filesize

        1024KB

      • memory/1088-96-0x00000000007E0000-0x00000000008E0000-memory.dmp

        Filesize

        1024KB

      • memory/1088-54-0x000000005FFF0000-0x0000000060000000-memory.dmp

        Filesize

        64KB

      • memory/1088-94-0x00000000007E0000-0x00000000008E0000-memory.dmp

        Filesize

        1024KB

      • memory/1088-87-0x00000000007E0000-0x00000000008E0000-memory.dmp

        Filesize

        1024KB

      • memory/1088-82-0x00000000007E0000-0x00000000008E0000-memory.dmp

        Filesize

        1024KB

      • memory/1088-85-0x00000000007E0000-0x00000000008E0000-memory.dmp

        Filesize

        1024KB

      • memory/1088-121-0x00000000007E0000-0x00000000008E0000-memory.dmp

        Filesize

        1024KB

      • memory/1088-163-0x00000000007E0000-0x00000000008E0000-memory.dmp

        Filesize

        1024KB

      • memory/1088-177-0x00000000007E0000-0x00000000008E0000-memory.dmp

        Filesize

        1024KB

      • memory/1088-205-0x00000000007E0000-0x00000000008E0000-memory.dmp

        Filesize

        1024KB

      • memory/1088-84-0x00000000007E0000-0x00000000008E0000-memory.dmp

        Filesize

        1024KB

      • memory/1088-1077-0x00000000062E0000-0x00000000062E1000-memory.dmp

        Filesize

        4KB

      • memory/1088-83-0x00000000007E0000-0x00000000008E0000-memory.dmp

        Filesize

        1024KB

      • memory/1088-80-0x00000000007E0000-0x00000000008E0000-memory.dmp

        Filesize

        1024KB

      • memory/1088-81-0x00000000007E0000-0x00000000008E0000-memory.dmp

        Filesize

        1024KB

      • memory/1088-79-0x00000000007E0000-0x00000000008E0000-memory.dmp

        Filesize

        1024KB

      • memory/1088-1271-0x00000000062E0000-0x00000000062E1000-memory.dmp

        Filesize

        4KB

      • memory/1668-1270-0x0000000001F50000-0x0000000001F51000-memory.dmp

        Filesize

        4KB

      • memory/1712-1264-0x00000000001A0000-0x00000000001A1000-memory.dmp

        Filesize

        4KB