Analysis

  • max time kernel
    115s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    08/03/2023, 07:25

General

  • Target

    043924275116849061503809788147.doc

  • Size

    548.3MB

  • MD5

    df03ab3720154f245c109759ae06913e

  • SHA1

    1f4ae4072ca354d3337f578b74b7526f7fb2bbee

  • SHA256

    a85fa869a88e0c5464efb2e86ab86b97035374ea96bcc9c59a4fd7f7e3ba5de1

  • SHA512

    cdc65bbde648ac2349b566003be8b6f9f9a74c1439f09faa81d0d3b29ff4037be57d9bbb4a2588847b1ac528cec82c5e205ac02862dfd64cac90ea0c0e3d0b56

  • 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\043924275116849061503809788147.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:2028
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\082611.tmp"
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1644
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Users\Admin\AppData\Local\Temp\082611.tmp"
        3⤵
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1064
        • C:\Windows\system32\regsvr32.exe
          C:\Windows\system32\regsvr32.exe "C:\Windows\system32\OhJWuWIKURUosK\NdQCCufHMTUGqfUS.dll"
          4⤵
            PID:1756
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        2⤵
          PID:1608

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\082611.tmp

        Filesize

        536.7MB

        MD5

        19bff3aa06ddc8c0c808d8be5cc49275

        SHA1

        98e500a3fdb186aaae72b3ac985d28e693c46c54

        SHA256

        c9b6bf7242684234d57a3ea22bb08ef61dab6b8dc716d68466fb0fe497dd76ba

        SHA512

        8732eef028d3021b64c79da521c4808bdb202ef4181bed55a26610d430b4afb553c6397311661e323132a866e6ad669c3bf2849aeba8fb8a48e607badfaffeda

      • C:\Users\Admin\AppData\Local\Temp\082616.zip

        Filesize

        872KB

        MD5

        d5700e1ee975acb953e76eac021dc57d

        SHA1

        a5e008828774992d42ddd66a00cda20e0d29b4a6

        SHA256

        e184e3130db13b0f2c4079a7d19e669f1873a7029f79fc928f07829007dbaca8

        SHA512

        0a1e10ded8a5dc96776571afbd84b735fac9b7c3baa2acaa576d26edf6cf81cfa28ebdcbba00ba70c99c655f49ed78ff1202ceed22425c92ec441df740edc7c5

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

        Filesize

        20KB

        MD5

        0eedae990d8020cf44848925326438af

        SHA1

        2f9c8ce21aa61ef87a61b5d5a802d4b11dc8846b

        SHA256

        821726d72ba2cbc7718f95699c2682ec436ef66a9e4a3eb6133ab3299f822667

        SHA512

        92807fe686b7a6dd10fb12d3789c9ccadbdd8700b00b80bf195019af1d4134632f76ba2f6f79e1b35845e6a4e428a18eec1e392d1a6cacc71d649dddf57dca7c

      • \Users\Admin\AppData\Local\Temp\082611.tmp

        Filesize

        536.7MB

        MD5

        19bff3aa06ddc8c0c808d8be5cc49275

        SHA1

        98e500a3fdb186aaae72b3ac985d28e693c46c54

        SHA256

        c9b6bf7242684234d57a3ea22bb08ef61dab6b8dc716d68466fb0fe497dd76ba

        SHA512

        8732eef028d3021b64c79da521c4808bdb202ef4181bed55a26610d430b4afb553c6397311661e323132a866e6ad669c3bf2849aeba8fb8a48e607badfaffeda

      • \Users\Admin\AppData\Local\Temp\082611.tmp

        Filesize

        536.7MB

        MD5

        19bff3aa06ddc8c0c808d8be5cc49275

        SHA1

        98e500a3fdb186aaae72b3ac985d28e693c46c54

        SHA256

        c9b6bf7242684234d57a3ea22bb08ef61dab6b8dc716d68466fb0fe497dd76ba

        SHA512

        8732eef028d3021b64c79da521c4808bdb202ef4181bed55a26610d430b4afb553c6397311661e323132a866e6ad669c3bf2849aeba8fb8a48e607badfaffeda

      • memory/1064-1264-0x00000000002A0000-0x00000000002A1000-memory.dmp

        Filesize

        4KB

      • memory/2028-82-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-85-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-59-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-60-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-62-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-63-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-64-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-65-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-67-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-68-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-71-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-70-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-72-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-74-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-75-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-76-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-77-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-78-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-79-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-80-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-57-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-81-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-84-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-58-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-87-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-86-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-89-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-90-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-92-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-93-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-94-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-95-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-97-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-96-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-91-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-88-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-83-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-73-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-69-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-66-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-61-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-98-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-99-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-105-0x00000000005A0000-0x00000000006A0000-memory.dmp

        Filesize

        1024KB

      • memory/2028-1077-0x00000000069B0000-0x00000000069B1000-memory.dmp

        Filesize

        4KB

      • memory/2028-1265-0x00000000069B0000-0x00000000069B1000-memory.dmp

        Filesize

        4KB

      • memory/2028-54-0x000000005FFF0000-0x0000000060000000-memory.dmp

        Filesize

        64KB