Analysis

  • max time kernel
    106s
  • max time network
    52s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 07:07

General

  • Target

    Sixt_receipt_81642755.doc

  • Size

    43KB

  • MD5

    4af54c2a93186c9c296811f06dad2e68

  • SHA1

    d9bb7523d1df1679665af1779544e7c799d28ab2

  • SHA256

    49e78fedd58dc44feda7a6b02d833011e51a2a7633fa673fe80ef4b0ad483e7e

  • SHA512

    5f29945ca8b97f5a89859f67b2faae8b103462bc31287780213337d0566d69fb7804dc29aca39cc8752f1ad0d2ecd4a09e163e33b6240d85a31c367d79fe1c08

  • SSDEEP

    384:Y1RKuNFkrWmLTY0jNk4UsyZ0jUe61tAZU5ygpIA:aBk3TYOUfVe61tAZU5rpIA

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.

  • Blocklisted process makes network request 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 8 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\Sixt_receipt_81642755.doc"
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1552
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\ddfffgcvdf.VBe"
      2⤵
      • Process spawned unexpected child process
      • Blocklisted process makes network request
      PID:700
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1532

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\ddfffgcvdf.VBe
      Filesize

      1KB

      MD5

      d30df803252cab185c71617e5dd1005c

      SHA1

      0eb1c6250b00a2c66e6c955b394db86a2ebd19a2

      SHA256

      dd06ce1483674c11abcfe7a7581c6dc81c3f4a1ed0710328efa7bd82cb0d15cd

      SHA512

      2e2a41ea5b58df22aebc4a7b6fe57397958b93019fc32a7fb04180070a82168808df2c7b7d9ff6bea146c7a92e2016c511c9b1967cf4825d3c3b07987eb28599

    • memory/700-61-0x0000000000000000-mapping.dmp
    • memory/1532-66-0x000007FEFBB71000-0x000007FEFBB73000-memory.dmp
      Filesize

      8KB

    • memory/1532-65-0x0000000000000000-mapping.dmp
    • memory/1552-60-0x00000000006EE000-0x00000000006F2000-memory.dmp
      Filesize

      16KB

    • memory/1552-59-0x00000000006EE000-0x00000000006F2000-memory.dmp
      Filesize

      16KB

    • memory/1552-54-0x0000000072661000-0x0000000072664000-memory.dmp
      Filesize

      12KB

    • memory/1552-58-0x00000000710CD000-0x00000000710D8000-memory.dmp
      Filesize

      44KB

    • memory/1552-57-0x0000000075681000-0x0000000075683000-memory.dmp
      Filesize

      8KB

    • memory/1552-64-0x00000000710CD000-0x00000000710D8000-memory.dmp
      Filesize

      44KB

    • memory/1552-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/1552-55-0x00000000700E1000-0x00000000700E3000-memory.dmp
      Filesize

      8KB

    • memory/1552-67-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/1552-68-0x00000000710CD000-0x00000000710D8000-memory.dmp
      Filesize

      44KB