Analysis

  • max time kernel
    112s
  • 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, 07:07

General

  • Target

    Nuovo documento 2023.03.08.doc

  • Size

    534.3MB

  • MD5

    e7483391a9b507ecbdfa411553650531

  • SHA1

    fdb26fdd782b2ac4dd26bb4e038730c2defb3918

  • SHA256

    a99eb971a4d11235924443dfd0308e731205b6320e6939526d94f91a43c64248

  • SHA512

    e40f21a2919036fca9f54bc7f2926777cb7890195ac22f789bddab0bf9e08403f69fcb493c3214dd9ffdaa65c0812885fd75d119dcd32a59133a3dccc85e1e1d

  • 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\Nuovo documento 2023.03.08.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:1968
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\080808.tmp"
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1888
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Users\Admin\AppData\Local\Temp\080808.tmp"
        3⤵
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1352
        • C:\Windows\system32\regsvr32.exe
          C:\Windows\system32\regsvr32.exe "C:\Windows\system32\OjzkDvdjm\utaBp.dll"
          4⤵
            PID:1576
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        2⤵
          PID:1520

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            • C:\Users\Admin\AppData\Local\Temp\080808.tmp

              Filesize

              536.7MB

              MD5

              19bff3aa06ddc8c0c808d8be5cc49275

              SHA1

              98e500a3fdb186aaae72b3ac985d28e693c46c54

              SHA256

              c9b6bf7242684234d57a3ea22bb08ef61dab6b8dc716d68466fb0fe497dd76ba

              SHA512

              8732eef028d3021b64c79da521c4808bdb202ef4181bed55a26610d430b4afb553c6397311661e323132a866e6ad669c3bf2849aeba8fb8a48e607badfaffeda

            • C:\Users\Admin\AppData\Local\Temp\080811.zip

              Filesize

              872KB

              MD5

              d5700e1ee975acb953e76eac021dc57d

              SHA1

              a5e008828774992d42ddd66a00cda20e0d29b4a6

              SHA256

              e184e3130db13b0f2c4079a7d19e669f1873a7029f79fc928f07829007dbaca8

              SHA512

              0a1e10ded8a5dc96776571afbd84b735fac9b7c3baa2acaa576d26edf6cf81cfa28ebdcbba00ba70c99c655f49ed78ff1202ceed22425c92ec441df740edc7c5

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

              Filesize

              20KB

              MD5

              be8328d75bcf1a7f36940f83f5718b4a

              SHA1

              1b51e91dd0638a7408daffbd29f70a20b6e61038

              SHA256

              7444c7f2f8d688f3600d4e83a60521d666411fccb1130898f72ef6889fe4f46c

              SHA512

              b1dd94cbbcae649ebf5288a4890d898a79d20a1d930be60d1ccf7d52522816bfea7cecffd19aa35ab8ddc63f0c4f838ed23bc6332832280cd8349ffbf1d3a5ec

            • \Users\Admin\AppData\Local\Temp\080808.tmp

              Filesize

              536.7MB

              MD5

              19bff3aa06ddc8c0c808d8be5cc49275

              SHA1

              98e500a3fdb186aaae72b3ac985d28e693c46c54

              SHA256

              c9b6bf7242684234d57a3ea22bb08ef61dab6b8dc716d68466fb0fe497dd76ba

              SHA512

              8732eef028d3021b64c79da521c4808bdb202ef4181bed55a26610d430b4afb553c6397311661e323132a866e6ad669c3bf2849aeba8fb8a48e607badfaffeda

            • \Users\Admin\AppData\Local\Temp\080808.tmp

              Filesize

              536.7MB

              MD5

              19bff3aa06ddc8c0c808d8be5cc49275

              SHA1

              98e500a3fdb186aaae72b3ac985d28e693c46c54

              SHA256

              c9b6bf7242684234d57a3ea22bb08ef61dab6b8dc716d68466fb0fe497dd76ba

              SHA512

              8732eef028d3021b64c79da521c4808bdb202ef4181bed55a26610d430b4afb553c6397311661e323132a866e6ad669c3bf2849aeba8fb8a48e607badfaffeda

            • memory/1352-1264-0x00000000001A0000-0x00000000001A1000-memory.dmp

              Filesize

              4KB

            • memory/1576-1270-0x0000000000200000-0x0000000000201000-memory.dmp

              Filesize

              4KB

            • memory/1968-96-0x0000000000430000-0x0000000000530000-memory.dmp

              Filesize

              1024KB

            • memory/1968-98-0x0000000000430000-0x0000000000530000-memory.dmp

              Filesize

              1024KB

            • memory/1968-87-0x0000000000430000-0x0000000000530000-memory.dmp

              Filesize

              1024KB

            • memory/1968-84-0x0000000000430000-0x0000000000530000-memory.dmp

              Filesize

              1024KB

            • memory/1968-89-0x0000000000430000-0x0000000000530000-memory.dmp

              Filesize

              1024KB

            • memory/1968-91-0x0000000000430000-0x0000000000530000-memory.dmp

              Filesize

              1024KB

            • memory/1968-93-0x0000000000430000-0x0000000000530000-memory.dmp

              Filesize

              1024KB

            • memory/1968-94-0x0000000000430000-0x0000000000530000-memory.dmp

              Filesize

              1024KB

            • memory/1968-95-0x0000000000430000-0x0000000000530000-memory.dmp

              Filesize

              1024KB

            • memory/1968-54-0x000000005FFF0000-0x0000000060000000-memory.dmp

              Filesize

              64KB

            • memory/1968-97-0x0000000000430000-0x0000000000530000-memory.dmp

              Filesize

              1024KB

            • memory/1968-92-0x0000000000430000-0x0000000000530000-memory.dmp

              Filesize

              1024KB

            • memory/1968-90-0x0000000000430000-0x0000000000530000-memory.dmp

              Filesize

              1024KB

            • memory/1968-88-0x0000000000430000-0x0000000000530000-memory.dmp

              Filesize

              1024KB

            • memory/1968-121-0x0000000000430000-0x0000000000530000-memory.dmp

              Filesize

              1024KB

            • memory/1968-140-0x0000000000430000-0x0000000000530000-memory.dmp

              Filesize

              1024KB

            • memory/1968-163-0x0000000000430000-0x0000000000530000-memory.dmp

              Filesize

              1024KB

            • memory/1968-205-0x0000000000430000-0x0000000000530000-memory.dmp

              Filesize

              1024KB

            • memory/1968-86-0x0000000000430000-0x0000000000530000-memory.dmp

              Filesize

              1024KB

            • memory/1968-1077-0x00000000060C0000-0x00000000060C1000-memory.dmp

              Filesize

              4KB

            • memory/1968-85-0x0000000000430000-0x0000000000530000-memory.dmp

              Filesize

              1024KB

            • memory/1968-83-0x0000000000430000-0x0000000000530000-memory.dmp

              Filesize

              1024KB

            • memory/1968-82-0x0000000000430000-0x0000000000530000-memory.dmp

              Filesize

              1024KB

            • memory/1968-81-0x0000000000430000-0x0000000000530000-memory.dmp

              Filesize

              1024KB

            • memory/1968-80-0x0000000000430000-0x0000000000530000-memory.dmp

              Filesize

              1024KB

            • memory/1968-1271-0x00000000060C0000-0x00000000060C1000-memory.dmp

              Filesize

              4KB

            • memory/1968-79-0x0000000000430000-0x0000000000530000-memory.dmp

              Filesize

              1024KB