Analysis

  • max time kernel
    150s
  • max time network
    145s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    19/10/2021, 14:13

General

  • Target
    confirmaci¢n bancaria.Pdf (2).exe
  • Size 364KB
  • Sample211019-rjed2aghar
  • SHA256 1e83eab755128ae8f4bcdade071b08cc6fae1ad62ff9fe29aae62b3e30ea28bb
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • formbook

Version
  • 4.1

Campaign
  • dv9n

C2
  • http://www.elianedefalco.com/dv9n/

Decoy
  • nblvqing.com

  • delmegebuildingproducts.com

  • xiongba8.com

  • latuawebreputation.online

  • nowcloud.tech

  • cckghs.com

  • tradeoo.ltd

  • ppapo.com

  • tphoaphuongdo.club

  • whitefoxy.site

  • bottle-sentences.net

  • computersewa.com

  • lushberryholidays.com

  • motobotz.com

  • shadurj.com

  • amazonlexdeveloper.com

  • shunli178.xyz

  • sjzzlmh.com

  • 6eu09rp.xyz

  • novinmes.com

Signatures

  • Formbook

    Formbook is a data stealing malware which is capable of stealing data.

  • suricata: ET MALWARE FormBook CnC Checkin (GET)

    suricata: ET MALWARE FormBook CnC Checkin (GET)

  • Formbook Payload 4 IoCs
  • Suspicious use of SetThreadContext 4 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.

  • Suspicious behavior: EnumeratesProcesses 45 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:3040
    • C:\Users\Admin\AppData\Local\Temp\confirmaci¢n bancaria.Pdf (2).exe
      "C:\Users\Admin\AppData\Local\Temp\confirmaci¢n bancaria.Pdf (2).exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3600
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\PAfAvPbvd" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7173.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:2916
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        3⤵
          PID:4696
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
          3⤵
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          PID:1800
      • C:\Windows\SysWOW64\help.exe
        "C:\Windows\SysWOW64\help.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3196
        • C:\Windows\SysWOW64\cmd.exe
          /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
          3⤵
            PID:904

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            memory/1800-134-0x0000000000EB0000-0x0000000000EC4000-memory.dmp

            memory/1800-133-0x0000000000400000-0x000000000042F000-memory.dmp

            memory/1800-131-0x0000000000C70000-0x0000000000C84000-memory.dmp

            memory/1800-130-0x0000000000F50000-0x0000000001270000-memory.dmp

            memory/1800-127-0x0000000000400000-0x000000000042F000-memory.dmp

            memory/3040-135-0x00000000033B0000-0x0000000003464000-memory.dmp

            memory/3040-142-0x0000000005C30000-0x0000000005D2B000-memory.dmp

            memory/3040-132-0x0000000005AD0000-0x0000000005C23000-memory.dmp

            memory/3196-141-0x0000000003230000-0x00000000032C3000-memory.dmp

            memory/3196-140-0x00000000034D0000-0x00000000037F0000-memory.dmp

            memory/3196-138-0x0000000000CA0000-0x0000000000CCF000-memory.dmp

            memory/3196-137-0x0000000001000000-0x0000000001007000-memory.dmp

            memory/3600-121-0x0000000005730000-0x0000000005C2E000-memory.dmp

            memory/3600-118-0x0000000005730000-0x0000000005731000-memory.dmp

            memory/3600-115-0x0000000000E60000-0x0000000000E61000-memory.dmp

            memory/3600-119-0x0000000005730000-0x0000000005C2E000-memory.dmp

            memory/3600-120-0x0000000005890000-0x0000000005891000-memory.dmp

            memory/3600-125-0x0000000009B80000-0x0000000009BD0000-memory.dmp

            memory/3600-117-0x0000000005C30000-0x0000000005C31000-memory.dmp

            memory/3600-122-0x0000000005730000-0x0000000005C2E000-memory.dmp

            memory/3600-123-0x0000000009A20000-0x0000000009A28000-memory.dmp

            memory/3600-124-0x0000000009AE0000-0x0000000009AE1000-memory.dmp