Overview

overview

10

Static

static

outstandin...df.exe

windows7_x64

10

outstandin...df.exe

windows10_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    142s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    26/04/2021, 05:14

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General

  • Target
    outstanding invoices pdf.exe
  • Size 770KB
  • Sample210426-jf8f4f34g2
  • SHA256 05b6ee8ad090962be89b9f9d1c604541bfc1914e94c245bad6f469988eed019c
  • MD5 SHA1 SHA512
Score
10/10
formbookratspywarestealertrojan

Malware Config

Extracted

Family

  • formbook

Version

  • 4.1

C2

  • http://w����5 �@q[*��S=���m

Signatures

  • Formbook

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

    trojanspywarestealerformbook
  • Formbook Payload 3 IoCs
    rat
  • 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.

    persistence
  • Suspicious behavior: EnumeratesProcesses 24 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:388
    • C:\Users\Admin\AppData\Local\Temp\outstanding invoices pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\outstanding invoices pdf.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3904
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\akzhsTT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8A20.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:60
      • C:\Users\Admin\AppData\Local\Temp\outstanding invoices pdf.exe
        "C:\Users\Admin\AppData\Local\Temp\outstanding invoices pdf.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:1048
    • C:\Windows\SysWOW64\autochk.exe
      "C:\Windows\SysWOW64\autochk.exe"
      2⤵
        PID:2080
      • C:\Windows\SysWOW64\autoconv.exe
        "C:\Windows\SysWOW64\autoconv.exe"
        2⤵
          PID:2352
        • C:\Windows\SysWOW64\autoconv.exe
          "C:\Windows\SysWOW64\autoconv.exe"
          2⤵
            PID:520
          • C:\Windows\SysWOW64\autoconv.exe
            "C:\Windows\SysWOW64\autoconv.exe"
            2⤵
              PID:2400
            • C:\Windows\SysWOW64\autoconv.exe
              "C:\Windows\SysWOW64\autoconv.exe"
              2⤵
                PID:2076
              • C:\Windows\SysWOW64\autoconv.exe
                "C:\Windows\SysWOW64\autoconv.exe"
                2⤵
                  PID:2460
                • C:\Windows\SysWOW64\autoconv.exe
                  "C:\Windows\SysWOW64\autoconv.exe"
                  2⤵
                    PID:2444
                  • C:\Windows\SysWOW64\netsh.exe
                    "C:\Windows\SysWOW64\netsh.exe"
                    2⤵
                    • Suspicious use of SetThreadContext
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious behavior: MapViewOfSection
                    • Suspicious use of AdjustPrivilegeToken
                    • Suspicious use of WriteProcessMemory
                    PID:1704
                    • C:\Windows\SysWOW64\cmd.exe
                      /c del "C:\Users\Admin\AppData\Local\Temp\outstanding invoices pdf.exe"
                      3⤵
                        PID:1668

                  Network

                        MITRE ATT&CK Enterprise v6

                        Replay Monitor

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                        Downloads

                        memory/388-123-0x0000000005FE0000-0x000000000610C000-memory.dmp
                        Download

                        memory/388-132-0x0000000005D70000-0x0000000005EA6000-memory.dmp
                        Download

                        memory/388-125-0x0000000005C50000-0x0000000005D6C000-memory.dmp
                        Download

                        memory/1048-121-0x0000000001260000-0x0000000001580000-memory.dmp
                        Download

                        memory/1048-118-0x0000000000400000-0x000000000042E000-memory.dmp
                        Download

                        memory/1048-122-0x0000000000D70000-0x0000000000EBA000-memory.dmp
                        Download

                        memory/1048-124-0x0000000001240000-0x0000000001254000-memory.dmp
                        Download

                        memory/1704-127-0x00000000012C0000-0x00000000012DE000-memory.dmp
                        Download

                        memory/1704-128-0x0000000000BD0000-0x0000000000BFE000-memory.dmp
                        Download

                        memory/1704-129-0x0000000003660000-0x0000000003980000-memory.dmp
                        Download

                        memory/1704-131-0x0000000003590000-0x0000000003623000-memory.dmp
                        Download

                        memory/3904-114-0x0000000002EB0000-0x0000000002EB1000-memory.dmp
                        Download

                        memory/3904-115-0x000000007F3F0000-0x000000007F3F1000-memory.dmp
                        Download