Analysis

  • max time kernel
    146s
  • max time network
    156s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    19-03-2023 13:24

General

  • Target

    INFO_1703.doc

  • Size

    538.3MB

  • MD5

    5764499b0b78bbfede5bfb20c9a6bf1b

  • SHA1

    4054d73b5d800a6635ae840758743ab6848bd56d

  • SHA256

    b0464d4fce9faf96fbf8bce0c6d5c34db234a1985c086ae5f4cb145a78f1c06b

  • SHA512

    d1db611db0b327695ad3636793816c47c05cdee2396d1eeaac8fc791779d7d6e9ece129adcf4abbb65e9f136426455de3afe38b4f2c5a624c72cc1448c3e0b94

  • SSDEEP

    6144:ip32/gDd0Nmt71wFmSWjfDrV8YQnZocbyrX4NqclWL9:ip32SEmtJwFmhjfPtrXqqyW

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.

  • Downloads MZ/PE file
  • 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 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\INFO_1703.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:916
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:912
      • C:\Windows\SysWOW64\regsvr32.exe
        "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\142543.tmp"
        2⤵
        • Process spawned unexpected child process
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1384
        • C:\Windows\system32\regsvr32.exe
          /s "C:\Users\Admin\AppData\Local\Temp\142543.tmp"
          3⤵
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:308
          • C:\Windows\system32\regsvr32.exe
            C:\Windows\system32\regsvr32.exe "C:\Windows\system32\VKHnGwwupTooUqDw\VDQgPXK.dll"
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:528

    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\142543.tmp
      Filesize

      561KB

      MD5

      c901c8089c5e017f8e9b4b15c8ef154f

      SHA1

      336c2bea43bfa2e8afd27a164dba640f36c0013c

      SHA256

      fd79e8fa5e3801101a1305b6aba7a5e7fdc852ed9036d6d9a5210be414a5cc5a

      SHA512

      9ff052f9fc9cc3cf74b170f76d6a20a01c5dbb74b2d97edc9e55b75f52b408f3104e49bf290773bd63d216f2787d945aa7d954b58e927c99e1db18c6a7d74ade

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

      20KB

      MD5

      e15211faafe1a202556aefec80f7877b

      SHA1

      cb84c3cfa98af9edcc6387f17da3f5d10247348b

      SHA256

      77814a97e9b5132ac7bf734d3c8b54fb6404e02ce99a2fcf5df0128cbb95ccd8

      SHA512

      a7d70cb46cb3a8db055c5c4564a89c9add302da799ef1af1fc9f829620c6fd07e7c0cb52730400876d8563c4ed50c1b264ae96897c3751d4da92507da2d1cfa7

    • \Users\Admin\AppData\Local\Temp\142543.tmp
      Filesize

      561KB

      MD5

      c901c8089c5e017f8e9b4b15c8ef154f

      SHA1

      336c2bea43bfa2e8afd27a164dba640f36c0013c

      SHA256

      fd79e8fa5e3801101a1305b6aba7a5e7fdc852ed9036d6d9a5210be414a5cc5a

      SHA512

      9ff052f9fc9cc3cf74b170f76d6a20a01c5dbb74b2d97edc9e55b75f52b408f3104e49bf290773bd63d216f2787d945aa7d954b58e927c99e1db18c6a7d74ade

    • \Users\Admin\AppData\Local\Temp\142543.tmp
      Filesize

      561KB

      MD5

      c901c8089c5e017f8e9b4b15c8ef154f

      SHA1

      336c2bea43bfa2e8afd27a164dba640f36c0013c

      SHA256

      fd79e8fa5e3801101a1305b6aba7a5e7fdc852ed9036d6d9a5210be414a5cc5a

      SHA512

      9ff052f9fc9cc3cf74b170f76d6a20a01c5dbb74b2d97edc9e55b75f52b408f3104e49bf290773bd63d216f2787d945aa7d954b58e927c99e1db18c6a7d74ade

    • memory/308-1450-0x00000000003A0000-0x00000000003A1000-memory.dmp
      Filesize

      4KB

    • memory/916-100-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-103-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-86-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-88-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-89-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-87-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-91-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-93-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-92-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-90-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-94-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-96-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-97-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-95-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-99-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-98-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-101-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-54-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/916-102-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-84-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-105-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-104-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-108-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-109-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-106-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-107-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-111-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-110-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-113-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-112-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-115-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-114-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-116-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-117-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-140-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-85-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-82-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-83-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-81-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB

    • memory/916-80-0x0000000000400000-0x0000000000500000-memory.dmp
      Filesize

      1024KB