Resubmissions

10-08-2020 08:42

200810-12br5knqes 10

Analysis

  • max time kernel
    146s
  • max time network
    139s
  • platform
    windows10_x64
  • resource
    win10v200722
  • submitted
    10-08-2020 08:42

General

  • Target

    N5teSBoBlVySUoq.exe

  • Size

    501KB

  • MD5

    6c914ab41b3b8fcd47d2b52458aa98ac

  • SHA1

    dc01e0c3bca0facd2f4838ac42b94ff0c3c88bd1

  • SHA256

    2d8474bdd8b6122aa79a3b86f729f9aa4f83a2ccf6a51ab510d753b47fc01189

  • SHA512

    44cb0d199025cbf4bc6b6fedca53bc6aed9f676c436ded8a88eefef12a846d3ed8fb612bc9713cea6a7bd2d07fac88a009e1c659379cec43aa571fa69d800984

Malware Config

Extracted

Family

formbook

C2

http://www.mansiobok.info/h8ofs/

Decoy

totum-community.com

fintechguardian.com

playwithyourkid.com

jeanstrousers.com

alimentosprobioticos.com

innovationembassies.net

qmfwig.men

choose-vida.com

mcmontagem.com

2math4all.com

ubersize.com

epicmediasv.com

kombipetektemizligi.com

provinsijawabarat.com

godhasanaddress.com

neural.link

mobiola.biz

kuckoorock.com

hideawaytrails.com

coolbrunettegirlsvideo.site

Signatures

  • Formbook

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

  • Formbook Payload 4 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • 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 38 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:2940
    • C:\Users\Admin\AppData\Local\Temp\N5teSBoBlVySUoq.exe
      "C:\Users\Admin\AppData\Local\Temp\N5teSBoBlVySUoq.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3908
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zaXeAacuXXqx" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4702.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:3812
      • C:\Users\Admin\AppData\Local\Temp\N5teSBoBlVySUoq.exe
        "C:\Users\Admin\AppData\Local\Temp\N5teSBoBlVySUoq.exe"
        3⤵
          PID:3852
        • C:\Users\Admin\AppData\Local\Temp\N5teSBoBlVySUoq.exe
          "C:\Users\Admin\AppData\Local\Temp\N5teSBoBlVySUoq.exe"
          3⤵
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          PID:3880
      • C:\Windows\SysWOW64\cmstp.exe
        "C:\Windows\SysWOW64\cmstp.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3788
        • C:\Windows\SysWOW64\cmd.exe
          /c del "C:\Users\Admin\AppData\Local\Temp\N5teSBoBlVySUoq.exe"
          3⤵
            PID:2164

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\tmp4702.tmp

      • memory/2164-18-0x0000000000000000-mapping.dmp

      • memory/3788-19-0x00000000060F0000-0x0000000006212000-memory.dmp

        Filesize

        1.1MB

      • memory/3788-17-0x0000000001110000-0x0000000001126000-memory.dmp

        Filesize

        88KB

      • memory/3788-16-0x0000000001110000-0x0000000001126000-memory.dmp

        Filesize

        88KB

      • memory/3788-15-0x0000000000000000-mapping.dmp

      • memory/3812-11-0x0000000000000000-mapping.dmp

      • memory/3880-14-0x000000000041ED70-mapping.dmp

      • memory/3880-13-0x0000000000400000-0x000000000042E000-memory.dmp

        Filesize

        184KB

      • memory/3908-5-0x00000000051B0000-0x00000000051B1000-memory.dmp

        Filesize

        4KB

      • memory/3908-10-0x00000000055D0000-0x0000000005600000-memory.dmp

        Filesize

        192KB

      • memory/3908-9-0x0000000005580000-0x00000000055C5000-memory.dmp

        Filesize

        276KB

      • memory/3908-8-0x0000000005120000-0x000000000512B000-memory.dmp

        Filesize

        44KB

      • memory/3908-7-0x0000000005330000-0x0000000005331000-memory.dmp

        Filesize

        4KB

      • memory/3908-6-0x0000000005060000-0x0000000005061000-memory.dmp

        Filesize

        4KB

      • memory/3908-0-0x0000000073FF0000-0x00000000746DE000-memory.dmp

        Filesize

        6.9MB

      • memory/3908-4-0x0000000005610000-0x0000000005611000-memory.dmp

        Filesize

        4KB

      • memory/3908-3-0x0000000005070000-0x0000000005071000-memory.dmp

        Filesize

        4KB

      • memory/3908-1-0x0000000000690000-0x0000000000691000-memory.dmp

        Filesize

        4KB