Analysis

  • max time kernel
    148s
  • max time network
    148s
  • platform
    windows10_x64
  • resource
    win10v200722
  • submitted
    13/10/2020, 06:48

General

  • Target
    PO 20201013_file_xls.exe
  • Size 707KB
  • Sample201013-66fgflnc8s
  • SHA256 af61853ca27001c0721463fce68bb033a9084e9fcd0c6ced3acd7fc3ea0e957a
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • formbook

C2
  • http://www.mybriefbox.com/sdk/

Decoy
  • mosquitobandidos.com

  • yisecurityfirst.com

  • faip777.icu

  • nc-tv.com

  • tifeeds.com

  • techlez.com

  • newalbanyironworks.com

  • shadent.store

  • therealworldtravel.com

  • cryptocoinminingpro.com

  • lobard.com

  • iamforexbots.com

  • cottnon.com

  • dandaanyar.com

  • browtopia.space

  • mo-diamond-mining.com

  • inteholistichealth.clinic

  • bhargavmistry.com

  • justgraceboutique.com

  • africanwomenabroad.com

Signatures

  • Formbook

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

  • Formbook Payload 3 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 47 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3060
    • C:\Users\Admin\AppData\Local\Temp\PO 20201013_file_xls.exe
      "C:\Users\Admin\AppData\Local\Temp\PO 20201013_file_xls.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3956
      • C:\Users\Admin\AppData\Local\Temp\PO 20201013_file_xls.exe
        "{path}"
        3⤵
          PID:3036
        • C:\Users\Admin\AppData\Local\Temp\PO 20201013_file_xls.exe
          "{path}"
          3⤵
            PID:740
          • C:\Users\Admin\AppData\Local\Temp\PO 20201013_file_xls.exe
            "{path}"
            3⤵
            • Suspicious use of SetThreadContext
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of AdjustPrivilegeToken
            PID:348
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\SysWOW64\cmd.exe"
          2⤵
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1880
          • C:\Windows\SysWOW64\cmd.exe
            /c del "C:\Users\Admin\AppData\Local\Temp\PO 20201013_file_xls.exe"
            3⤵
              PID:3068

        Network

              MITRE ATT&CK Matrix

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              memory/348-10-0x0000000000400000-0x000000000042E000-memory.dmp

              memory/1880-17-0x0000000003E40000-0x0000000003EFB000-memory.dmp

              memory/1880-15-0x0000000000890000-0x00000000008E9000-memory.dmp

              memory/1880-14-0x0000000000890000-0x00000000008E9000-memory.dmp

              memory/3956-5-0x0000000005160000-0x0000000005161000-memory.dmp

              memory/3956-9-0x0000000009F20000-0x0000000009F9D000-memory.dmp

              memory/3956-8-0x0000000007780000-0x000000000780E000-memory.dmp

              memory/3956-7-0x00000000055D0000-0x00000000055D4000-memory.dmp

              memory/3956-6-0x0000000007520000-0x0000000007521000-memory.dmp

              memory/3956-0-0x0000000073490000-0x0000000073B7E000-memory.dmp

              memory/3956-4-0x00000000051C0000-0x00000000051C1000-memory.dmp

              memory/3956-3-0x0000000005620000-0x0000000005621000-memory.dmp

              memory/3956-1-0x0000000000860000-0x0000000000861000-memory.dmp