Analysis

  • max time kernel
    148s
  • max time network
    116s
  • platform
    windows7_x64
  • resource
    win7-20230621-en
  • resource tags

    arch:x64arch:x86image:win7-20230621-enlocale:en-usos:windows7-x64system
  • submitted
    26-06-2023 08:33

General

  • Target

    30% Payment Receipt.rtf

  • Size

    42KB

  • MD5

    d4bc695be1f64cb89c061b21b06815a2

  • SHA1

    4056cdfa99fe137e1324be62763aee23d1990eb7

  • SHA256

    ad167c04c640a9777e7b6bb420e64b5cc46a0fd588820f6895420991465944a0

  • SHA512

    1ddb705be7d901acd7f9889bdfb4491ce4c5a9619884f083c79ac4046285d786e54ce6aabcf4eacbf6fc522804c27b8cc88f20b5077ef249d0f9c93390806221

  • SSDEEP

    768:rFx0XaIsnPRIa4fwJMo30VYWEfOH/cNUWTL4QUATxZA9fSP3/Uz+o4KSAIR:rf0Xvx3EMo32YWEfrkVAV//Uz+o46IR

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

xchu

Decoy

zcartoons.com

castilloshowroom.com

3bmmdtod.life

misaxoxo.com

nadiya.online

sykkbup29.xyz

triciaaprimrosevp.com

newleter.com

ptzslk.xyz

lightbulbfestival.com

texaslandline.com

ideeintemporelle.com

girljustdoitpodcast.com

medimediamarketing.com

bunk7outfitters.com

charlievgrfminnick.click

lifestyleinthehome.com

atfbestsale.online

frontdoorproperties.co.uk

grandpaswag2024.info

Signatures

  • Formbook

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

  • Formbook payload 4 IoCs
  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Office loads VBA resources, possible macro or embedded object present
  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • 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 18 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1240
    • 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\30% Payment Receipt.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:1292
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:688
      • C:\Windows\SysWOW64\ipconfig.exe
        "C:\Windows\SysWOW64\ipconfig.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Gathers network information
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1976
        • C:\Windows\SysWOW64\cmd.exe
          /c del "C:\Users\Admin\AppData\Roaming\pablodfd4676529.exe"
          3⤵
            PID:1764
      • 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:512
        • C:\Users\Admin\AppData\Roaming\pablodfd4676529.exe
          "C:\Users\Admin\AppData\Roaming\pablodfd4676529.exe"
          2⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of WriteProcessMemory
          PID:1480
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\pablodfd4676529.exe"
            3⤵
              PID:1416
            • C:\Users\Admin\AppData\Roaming\pablodfd4676529.exe
              "C:\Users\Admin\AppData\Roaming\pablodfd4676529.exe"
              3⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious behavior: MapViewOfSection
              • Suspicious use of AdjustPrivilegeToken
              PID:1708

        Network

        MITRE ATT&CK Matrix ATT&CK v6

        Execution

        Command-Line Interface

        1
        T1059

        Exploitation for Client Execution

        1
        T1203

        Defense Evasion

        Modify Registry

        1
        T1112

        Discovery

        System Information Discovery

        2
        T1082

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm
          Filesize

          20KB

          MD5

          884c504df55b59c246f9cb23698138e3

          SHA1

          a4bb0f8065a191e8ca9f690d2e71863684804521

          SHA256

          3ef1e7b45a88e39ee855f43cf39fa83ea01122ee2db7deee236770ad85efa0af

          SHA512

          49c7b76ae0e7424dfb5e1edbcac092a7afefb75e92cedd9e0e4387d33e85699457eac1ff456331308ebe53393f18b6bbf22630b4db5c8a35f7b415a3b7a9c4a9

        • C:\Users\Admin\AppData\Roaming\pablodfd4676529.exe
          Filesize

          662KB

          MD5

          40df500e4caa9265ef6bea269c34140d

          SHA1

          db34bb2e6dc20b945443faa9f5c5607a66638735

          SHA256

          9e4d05b5c07d77f2bf1fd7a22c59b4932f096ad1e140a536a025b5c325683073

          SHA512

          d51a238be322f12673fa76be731a123a2d0ca5c398a285e91a7a5bed231f4f1d5ca27e3ee0d4bd83502a064dec537a56fe9ed3f578c1e2e1595df8b7f2c7a347

        • C:\Users\Admin\AppData\Roaming\pablodfd4676529.exe
          Filesize

          662KB

          MD5

          40df500e4caa9265ef6bea269c34140d

          SHA1

          db34bb2e6dc20b945443faa9f5c5607a66638735

          SHA256

          9e4d05b5c07d77f2bf1fd7a22c59b4932f096ad1e140a536a025b5c325683073

          SHA512

          d51a238be322f12673fa76be731a123a2d0ca5c398a285e91a7a5bed231f4f1d5ca27e3ee0d4bd83502a064dec537a56fe9ed3f578c1e2e1595df8b7f2c7a347

        • C:\Users\Admin\AppData\Roaming\pablodfd4676529.exe
          Filesize

          662KB

          MD5

          40df500e4caa9265ef6bea269c34140d

          SHA1

          db34bb2e6dc20b945443faa9f5c5607a66638735

          SHA256

          9e4d05b5c07d77f2bf1fd7a22c59b4932f096ad1e140a536a025b5c325683073

          SHA512

          d51a238be322f12673fa76be731a123a2d0ca5c398a285e91a7a5bed231f4f1d5ca27e3ee0d4bd83502a064dec537a56fe9ed3f578c1e2e1595df8b7f2c7a347

        • C:\Users\Admin\AppData\Roaming\pablodfd4676529.exe
          Filesize

          662KB

          MD5

          40df500e4caa9265ef6bea269c34140d

          SHA1

          db34bb2e6dc20b945443faa9f5c5607a66638735

          SHA256

          9e4d05b5c07d77f2bf1fd7a22c59b4932f096ad1e140a536a025b5c325683073

          SHA512

          d51a238be322f12673fa76be731a123a2d0ca5c398a285e91a7a5bed231f4f1d5ca27e3ee0d4bd83502a064dec537a56fe9ed3f578c1e2e1595df8b7f2c7a347

        • \Users\Admin\AppData\Roaming\pablodfd4676529.exe
          Filesize

          662KB

          MD5

          40df500e4caa9265ef6bea269c34140d

          SHA1

          db34bb2e6dc20b945443faa9f5c5607a66638735

          SHA256

          9e4d05b5c07d77f2bf1fd7a22c59b4932f096ad1e140a536a025b5c325683073

          SHA512

          d51a238be322f12673fa76be731a123a2d0ca5c398a285e91a7a5bed231f4f1d5ca27e3ee0d4bd83502a064dec537a56fe9ed3f578c1e2e1595df8b7f2c7a347

        • memory/1240-88-0x0000000006270000-0x0000000006377000-memory.dmp
          Filesize

          1.0MB

        • memory/1240-108-0x0000000006B60000-0x0000000006C6A000-memory.dmp
          Filesize

          1.0MB

        • memory/1240-109-0x0000000006B60000-0x0000000006C6A000-memory.dmp
          Filesize

          1.0MB

        • memory/1240-112-0x0000000006B60000-0x0000000006C6A000-memory.dmp
          Filesize

          1.0MB

        • memory/1292-54-0x000000005FFF0000-0x0000000060000000-memory.dmp
          Filesize

          64KB

        • memory/1292-134-0x000000005FFF0000-0x0000000060000000-memory.dmp
          Filesize

          64KB

        • memory/1416-95-0x000000006B360000-0x000000006B3C1000-memory.dmp
          Filesize

          388KB

        • memory/1416-92-0x000000006AF00000-0x000000006B178000-memory.dmp
          Filesize

          2.5MB

        • memory/1480-67-0x0000000000DE0000-0x0000000000E8C000-memory.dmp
          Filesize

          688KB

        • memory/1480-77-0x0000000005E60000-0x0000000005ECE000-memory.dmp
          Filesize

          440KB

        • memory/1480-76-0x0000000000970000-0x000000000097C000-memory.dmp
          Filesize

          48KB

        • memory/1480-74-0x0000000004BE0000-0x0000000004C20000-memory.dmp
          Filesize

          256KB

        • memory/1480-73-0x00000000004E0000-0x00000000004EC000-memory.dmp
          Filesize

          48KB

        • memory/1480-72-0x0000000004BE0000-0x0000000004C20000-memory.dmp
          Filesize

          256KB

        • memory/1708-85-0x00000000008A0000-0x0000000000BA3000-memory.dmp
          Filesize

          3.0MB

        • memory/1708-87-0x0000000000210000-0x0000000000224000-memory.dmp
          Filesize

          80KB

        • memory/1708-86-0x0000000000400000-0x000000000042F000-memory.dmp
          Filesize

          188KB

        • memory/1708-81-0x0000000000400000-0x000000000042F000-memory.dmp
          Filesize

          188KB

        • memory/1708-79-0x0000000000400000-0x000000000042F000-memory.dmp
          Filesize

          188KB

        • memory/1708-80-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
          Filesize

          4KB

        • memory/1708-78-0x0000000000400000-0x000000000042F000-memory.dmp
          Filesize

          188KB

        • memory/1976-100-0x00000000000C0000-0x00000000000CA000-memory.dmp
          Filesize

          40KB

        • memory/1976-101-0x00000000000C0000-0x00000000000CA000-memory.dmp
          Filesize

          40KB

        • memory/1976-102-0x0000000000080000-0x00000000000AF000-memory.dmp
          Filesize

          188KB

        • memory/1976-103-0x00000000020A0000-0x00000000023A3000-memory.dmp
          Filesize

          3.0MB

        • memory/1976-104-0x0000000000080000-0x00000000000AF000-memory.dmp
          Filesize

          188KB

        • memory/1976-107-0x0000000001F10000-0x0000000001FA3000-memory.dmp
          Filesize

          588KB