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Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    06/09/2022, 21:26

General

  • Target

    PO98632732.rtf

  • Size

    16KB

  • MD5

    d5ec6564380513fa99e2f7c46f18040f

  • SHA1

    e4520ff2e021a71af52a69cfe4ab50d806820d55

  • SHA256

    690666560c162ef0fab9a510998f26dca0eec9f72b26cf91d8671bb03f728869

  • SHA512

    b48bb50855cae45f4f6ac94681bf08621c9b0626345e717321568652020220efdf3cdd919db61096ad71152423ff0f759c91ffc04ce8406fb5e135cdd7fafff8

  • SSDEEP

    192:TG0UrykljB+nk2/yAXJsbcg+WEyFUskqgiH7aBaC0Soy20DA4rk3F0j6hx:TCB+k2aAKIg+WLUskCH7aBaCdFbsR4W

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

os56

Decoy

australianhotwaterupgrades.com

vipidplus.online

kneescooterscanada.com

pesanterkini.com

madden24gameplay.com

linkbong88moinhat.net

awongtest41saletest.com

thetravellingcatcompany.com

vazxlip.xyz

bangdemcheeks.com

passengerassistance.website

cloud4global.com

prestopizzarennes.com

midlandchambertravel.com

nashwan-d.com

bellescraftkitchen.com

teamtisdale.com

allascooussaa.us

cryptobet365.xyz

cbij.education

Signatures

  • Formbook

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

  • Formbook payload 5 IoCs
  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Drops file in Windows directory 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Launches Equation Editor 1 TTPs 1 IoCs

    Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1208
    • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
      "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\PO98632732.rtf"
      2⤵
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1680
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:1064
      • C:\Windows\SysWOW64\control.exe
        "C:\Windows\SysWOW64\control.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1716
        • C:\Windows\SysWOW64\cmd.exe
          /c del "C:\Users\Admin\AppData\Roaming\owenelfjt47861.exe"
          3⤵
            PID:1796
      • C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
        "C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
        1⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        • Launches Equation Editor
        • Suspicious use of WriteProcessMemory
        PID:616
        • C:\Users\Admin\AppData\Roaming\owenelfjt47861.exe
          "C:\Users\Admin\AppData\Roaming\owenelfjt47861.exe"
          2⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of WriteProcessMemory
          PID:1324
          • C:\Users\Admin\AppData\Roaming\owenelfjt47861.exe
            "C:\Users\Admin\AppData\Roaming\owenelfjt47861.exe"
            3⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of AdjustPrivilegeToken
            PID:1012

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Roaming\owenelfjt47861.exe

        Filesize

        924KB

        MD5

        eb8618087e373bdbea9867ee7e68a338

        SHA1

        76a89dfa066e5de6da37be81aa25b316ccb29a48

        SHA256

        690b0c5b2093f6bb09ab2756070951230809f4c33c2d4e5c9e17cf485bc91cfd

        SHA512

        778dc244289aaf3c52c3a122ad0cc810dc37ee63f7cb85bbe4ddfa54104e9b960b5cdcdbbf54210838ea24377d062ff4c8b4b8a6d9ecb77487b796aab83e2f72

      • C:\Users\Admin\AppData\Roaming\owenelfjt47861.exe

        Filesize

        924KB

        MD5

        eb8618087e373bdbea9867ee7e68a338

        SHA1

        76a89dfa066e5de6da37be81aa25b316ccb29a48

        SHA256

        690b0c5b2093f6bb09ab2756070951230809f4c33c2d4e5c9e17cf485bc91cfd

        SHA512

        778dc244289aaf3c52c3a122ad0cc810dc37ee63f7cb85bbe4ddfa54104e9b960b5cdcdbbf54210838ea24377d062ff4c8b4b8a6d9ecb77487b796aab83e2f72

      • C:\Users\Admin\AppData\Roaming\owenelfjt47861.exe

        Filesize

        924KB

        MD5

        eb8618087e373bdbea9867ee7e68a338

        SHA1

        76a89dfa066e5de6da37be81aa25b316ccb29a48

        SHA256

        690b0c5b2093f6bb09ab2756070951230809f4c33c2d4e5c9e17cf485bc91cfd

        SHA512

        778dc244289aaf3c52c3a122ad0cc810dc37ee63f7cb85bbe4ddfa54104e9b960b5cdcdbbf54210838ea24377d062ff4c8b4b8a6d9ecb77487b796aab83e2f72

      • \Users\Admin\AppData\Roaming\owenelfjt47861.exe

        Filesize

        924KB

        MD5

        eb8618087e373bdbea9867ee7e68a338

        SHA1

        76a89dfa066e5de6da37be81aa25b316ccb29a48

        SHA256

        690b0c5b2093f6bb09ab2756070951230809f4c33c2d4e5c9e17cf485bc91cfd

        SHA512

        778dc244289aaf3c52c3a122ad0cc810dc37ee63f7cb85bbe4ddfa54104e9b960b5cdcdbbf54210838ea24377d062ff4c8b4b8a6d9ecb77487b796aab83e2f72

      • \Users\Admin\AppData\Roaming\owenelfjt47861.exe

        Filesize

        924KB

        MD5

        eb8618087e373bdbea9867ee7e68a338

        SHA1

        76a89dfa066e5de6da37be81aa25b316ccb29a48

        SHA256

        690b0c5b2093f6bb09ab2756070951230809f4c33c2d4e5c9e17cf485bc91cfd

        SHA512

        778dc244289aaf3c52c3a122ad0cc810dc37ee63f7cb85bbe4ddfa54104e9b960b5cdcdbbf54210838ea24377d062ff4c8b4b8a6d9ecb77487b796aab83e2f72

      • memory/1012-74-0x0000000000400000-0x000000000042F000-memory.dmp

        Filesize

        188KB

      • memory/1012-81-0x0000000000400000-0x000000000042F000-memory.dmp

        Filesize

        188KB

      • memory/1012-82-0x00000000008A0000-0x0000000000BA3000-memory.dmp

        Filesize

        3.0MB

      • memory/1012-77-0x0000000000400000-0x000000000042F000-memory.dmp

        Filesize

        188KB

      • memory/1012-75-0x0000000000400000-0x000000000042F000-memory.dmp

        Filesize

        188KB

      • memory/1012-83-0x0000000000170000-0x0000000000185000-memory.dmp

        Filesize

        84KB

      • memory/1064-70-0x000007FEFB741000-0x000007FEFB743000-memory.dmp

        Filesize

        8KB

      • memory/1208-84-0x0000000003DE0000-0x0000000003EB5000-memory.dmp

        Filesize

        852KB

      • memory/1208-92-0x0000000006C00000-0x0000000006D3A000-memory.dmp

        Filesize

        1.2MB

      • memory/1208-94-0x0000000006C00000-0x0000000006D3A000-memory.dmp

        Filesize

        1.2MB

      • memory/1324-71-0x00000000041B0000-0x00000000041BC000-memory.dmp

        Filesize

        48KB

      • memory/1324-72-0x0000000005CE0000-0x0000000005D6E000-memory.dmp

        Filesize

        568KB

      • memory/1324-73-0x00000000049E0000-0x0000000004A14000-memory.dmp

        Filesize

        208KB

      • memory/1324-67-0x0000000000A40000-0x0000000000A5A000-memory.dmp

        Filesize

        104KB

      • memory/1324-65-0x0000000000C80000-0x0000000000D6C000-memory.dmp

        Filesize

        944KB

      • memory/1680-55-0x000000006FCB1000-0x000000006FCB3000-memory.dmp

        Filesize

        8KB

      • memory/1680-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

        Filesize

        64KB

      • memory/1680-54-0x0000000072231000-0x0000000072234000-memory.dmp

        Filesize

        12KB

      • memory/1680-68-0x0000000070C9D000-0x0000000070CA8000-memory.dmp

        Filesize

        44KB

      • memory/1680-58-0x0000000070C9D000-0x0000000070CA8000-memory.dmp

        Filesize

        44KB

      • memory/1680-96-0x0000000070C9D000-0x0000000070CA8000-memory.dmp

        Filesize

        44KB

      • memory/1680-95-0x000000005FFF0000-0x0000000060000000-memory.dmp

        Filesize

        64KB

      • memory/1680-57-0x0000000075281000-0x0000000075283000-memory.dmp

        Filesize

        8KB

      • memory/1716-91-0x0000000001E30000-0x0000000001EC4000-memory.dmp

        Filesize

        592KB

      • memory/1716-90-0x0000000001F70000-0x0000000002273000-memory.dmp

        Filesize

        3.0MB

      • memory/1716-93-0x0000000000080000-0x00000000000AF000-memory.dmp

        Filesize

        188KB

      • memory/1716-89-0x0000000000080000-0x00000000000AF000-memory.dmp

        Filesize

        188KB

      • memory/1716-87-0x0000000000880000-0x000000000089F000-memory.dmp

        Filesize

        124KB