Overview

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Static

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Resubmissions

24-08-2023 11:16

230824-nda8msdf8z 10

05-08-2023 22:52

230805-2tn2bsfa82 10

24-07-2023 06:25

230724-g6s6laag35 10

22-07-2023 15:57

230722-tee6wabg5w 10

20-07-2023 23:19

230720-3bb5gsbf5v 10

20-07-2023 23:06

230720-23f23sba63 10

03-02-2021 11:43

210203-6bgge2nfan 10

22-11-2020 06:42

201122-6x1at779dj 10

Analysis

  • max time kernel
    306s
  • max time network
    311s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    03-02-2021 11:43

General

  • Target

    Endermanch@FreeYoutubeDownloader.exe

  • Size

    396KB

  • MD5

    13f4b868603cf0dd6c32702d1bd858c9

  • SHA1

    a595ab75e134f5616679be5f11deefdfaae1de15

  • SHA256

    cae57a60c4d269cd1ca43ef143aedb8bfc4c09a7e4a689544883d05ce89406e7

  • SHA512

    e0d7a81c9cdd15a4ef7c8a9492fffb2c520b28cebc54a139e1bffa5c523cf17dfb9ffe57188cf8843d74479df402306f4f0ce9fc09d87c7cca92aea287e5ff24

Malware Config

Signatures

  • BadRabbit

    Ransomware family discovered in late 2017, mainly targeting Russia and Ukraine.

  • Executes dropped EXE 4 IoCs
  • Modifies extensions of user files 1 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • Drops file in Windows directory 8 IoCs
  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Endermanch@FreeYoutubeDownloader.exe
    "C:\Users\Admin\AppData\Local\Temp\Endermanch@FreeYoutubeDownloader.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:3636
    • C:\Windows\Free Youtube Downloader\Free Youtube Downloader\Free YouTube Downloader.exe
      "C:\Windows\Free Youtube Downloader\Free Youtube Downloader\Free YouTube Downloader.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:2988
      • C:\Windows\Free Youtube Downloader\Free Youtube Downloader\Box.exe
        "C:\Windows\Free Youtube Downloader\Free Youtube Downloader\Box.exe"
        3⤵
        • Executes dropped EXE
        PID:2200
      • C:\Windows\Free Youtube Downloader\Free Youtube Downloader\Box.exe
        "C:\Windows\Free Youtube Downloader\Free Youtube Downloader\Box.exe"
        3⤵
        • Executes dropped EXE
        PID:3260
  • C:\Windows\SysWOW64\rundll32.exe
    C:\Windows\SysWOW64\rundll32.exe "C:\Windows\infpub.dat",#2 15
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3392
    • C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\system32\rundll32.exe C:\Windows\infpub.dat,#1 15
      2⤵
      • Modifies extensions of user files
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:64
      • C:\Windows\SysWOW64\cmd.exe
        /c schtasks /Delete /F /TN rhaegal
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2072
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /Delete /F /TN rhaegal
          4⤵
            PID:3812
        • C:\Windows\SysWOW64\cmd.exe
          /c schtasks /Create /RU SYSTEM /SC ONSTART /TN rhaegal /TR "C:\Windows\system32\cmd.exe /C Start \"\" \"C:\Windows\dispci.exe\" -id 4042766786 && exit"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2568
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /Create /RU SYSTEM /SC ONSTART /TN rhaegal /TR "C:\Windows\system32\cmd.exe /C Start \"\" \"C:\Windows\dispci.exe\" -id 4042766786 && exit"
            4⤵
            • Creates scheduled task(s)
            PID:3596
        • C:\Windows\SysWOW64\cmd.exe
          /c schtasks /Create /SC once /TN drogon /RU SYSTEM /TR "C:\Windows\system32\shutdown.exe /r /t 0 /f" /ST 13:01:00
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3972
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /Create /SC once /TN drogon /RU SYSTEM /TR "C:\Windows\system32\shutdown.exe /r /t 0 /f" /ST 13:01:00
            4⤵
            • Creates scheduled task(s)
            PID:1580
        • C:\Windows\B094.tmp
          "C:\Windows\B094.tmp" \\.\pipe\{52CE986F-4B10-49EF-9E03-4BC3E341382A}
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:736

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Defense Evasion

    Modify Registry

    1
    T1112

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\B094.tmp
      MD5

      347ac3b6b791054de3e5720a7144a977

      SHA1

      413eba3973a15c1a6429d9f170f3e8287f98c21c

      SHA256

      301b905eb98d8d6bb559c04bbda26628a942b2c4107c07a02e8f753bdcfe347c

      SHA512

      9a399916bc681964af1e1061bc0a8e2926307642557539ad587ce6f9b5ef93bdf1820fe5d7b5ffe5f0bb38e5b4dc6add213ba04048c0c7c264646375fcd01787

    • C:\Windows\B094.tmp
      MD5

      347ac3b6b791054de3e5720a7144a977

      SHA1

      413eba3973a15c1a6429d9f170f3e8287f98c21c

      SHA256

      301b905eb98d8d6bb559c04bbda26628a942b2c4107c07a02e8f753bdcfe347c

      SHA512

      9a399916bc681964af1e1061bc0a8e2926307642557539ad587ce6f9b5ef93bdf1820fe5d7b5ffe5f0bb38e5b4dc6add213ba04048c0c7c264646375fcd01787

    • C:\Windows\Free Youtube Downloader\Free Youtube Downloader\Box.exe
      MD5

      1bb4dd43a8aebc8f3b53acd05e31d5b5

      SHA1

      54cd1a4a505b301df636903b2293d995d560887e

      SHA256

      a2380a5f503bc6f5fcfd4c72e5b807df0740a60a298e8686bf6454f92e5d3c02

      SHA512

      94c70d592e806bb426760f61122b8321e8dc5cff7f793d51f9d5650821c502c43096f41d3e61207ca6989df5bfdbff57bc23328de16e99dd56e85efc90affdce

    • C:\Windows\Free Youtube Downloader\Free Youtube Downloader\Box.exe
      MD5

      1bb4dd43a8aebc8f3b53acd05e31d5b5

      SHA1

      54cd1a4a505b301df636903b2293d995d560887e

      SHA256

      a2380a5f503bc6f5fcfd4c72e5b807df0740a60a298e8686bf6454f92e5d3c02

      SHA512

      94c70d592e806bb426760f61122b8321e8dc5cff7f793d51f9d5650821c502c43096f41d3e61207ca6989df5bfdbff57bc23328de16e99dd56e85efc90affdce

    • C:\Windows\Free Youtube Downloader\Free Youtube Downloader\Box.exe
      MD5

      1bb4dd43a8aebc8f3b53acd05e31d5b5

      SHA1

      54cd1a4a505b301df636903b2293d995d560887e

      SHA256

      a2380a5f503bc6f5fcfd4c72e5b807df0740a60a298e8686bf6454f92e5d3c02

      SHA512

      94c70d592e806bb426760f61122b8321e8dc5cff7f793d51f9d5650821c502c43096f41d3e61207ca6989df5bfdbff57bc23328de16e99dd56e85efc90affdce

    • C:\Windows\Free Youtube Downloader\Free Youtube Downloader\Free YouTube Downloader.exe
      MD5

      f33a4e991a11baf336a2324f700d874d

      SHA1

      9da1891a164f2fc0a88d0de1ba397585b455b0f4

      SHA256

      a87524035509ff7aa277788e1a9485618665b7da35044d70c41ec0f118f3dfd7

      SHA512

      edf066968f31451e21c7c21d3f54b03fd5827a8526940c1e449aad7f99624577cbc6432deba49bb86e96ac275f5900dcef8d7623855eb3c808e084601ee1df20

    • C:\Windows\Free Youtube Downloader\Free Youtube Downloader\Free YouTube Downloader.exe
      MD5

      f33a4e991a11baf336a2324f700d874d

      SHA1

      9da1891a164f2fc0a88d0de1ba397585b455b0f4

      SHA256

      a87524035509ff7aa277788e1a9485618665b7da35044d70c41ec0f118f3dfd7

      SHA512

      edf066968f31451e21c7c21d3f54b03fd5827a8526940c1e449aad7f99624577cbc6432deba49bb86e96ac275f5900dcef8d7623855eb3c808e084601ee1df20

    • memory/64-11-0x00000000036C0000-0x0000000003728000-memory.dmp
      Filesize

      416KB

    • memory/64-10-0x0000000000000000-mapping.dmp
    • memory/736-16-0x0000000000000000-mapping.dmp
    • memory/1580-20-0x0000000000000000-mapping.dmp
    • memory/2072-12-0x0000000000000000-mapping.dmp
    • memory/2200-29-0x0000000004EB0000-0x0000000004EB1000-memory.dmp
      Filesize

      4KB

    • memory/2200-31-0x0000000005203000-0x0000000005205000-memory.dmp
      Filesize

      8KB

    • memory/2200-24-0x0000000073280000-0x000000007396E000-memory.dmp
      Filesize

      6MB

    • memory/2200-28-0x0000000004EF0000-0x0000000004EF1000-memory.dmp
      Filesize

      4KB

    • memory/2200-30-0x0000000005200000-0x0000000005201000-memory.dmp
      Filesize

      4KB

    • memory/2200-27-0x0000000005510000-0x0000000005511000-memory.dmp
      Filesize

      4KB

    • memory/2200-22-0x0000000000000000-mapping.dmp
    • memory/2200-25-0x0000000000610000-0x0000000000611000-memory.dmp
      Filesize

      4KB

    • memory/2568-14-0x0000000000000000-mapping.dmp
    • memory/2988-6-0x000001EF4D100000-0x000001EF4D101000-memory.dmp
      Filesize

      4KB

    • memory/2988-2-0x0000000000000000-mapping.dmp
    • memory/2988-8-0x000001EF4EE20000-0x000001EF4EE22000-memory.dmp
      Filesize

      8KB

    • memory/2988-9-0x000001EF4EE22000-0x000001EF4EE24000-memory.dmp
      Filesize

      8KB

    • memory/2988-5-0x00007FFB8A380000-0x00007FFB8AD6C000-memory.dmp
      Filesize

      9MB

    • memory/3260-32-0x0000000000000000-mapping.dmp
    • memory/3260-34-0x0000000073280000-0x000000007396E000-memory.dmp
      Filesize

      6MB

    • memory/3260-40-0x0000000005330000-0x0000000005331000-memory.dmp
      Filesize

      4KB

    • memory/3260-41-0x0000000005333000-0x0000000005335000-memory.dmp
      Filesize

      8KB

    • memory/3596-17-0x0000000000000000-mapping.dmp
    • memory/3812-13-0x0000000000000000-mapping.dmp
    • memory/3972-15-0x0000000000000000-mapping.dmp