Analysis

  • max time kernel
    119s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    15/04/2024, 04:30

General

  • Target
    $TEMP/dospop.exe
  • Size 806KB
  • Sample240415-e49z8ahb2t
  • SHA256 edb695897f58c9e5533136fa7836216e2463fcaafd1d82dd5e50fa0fd4be471e
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 3 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 3 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in Program Files directory 14 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 22 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\$TEMP\dospop.exe
    "C:\Users\Admin\AppData\Local\Temp\$TEMP\dospop.exe"
    1⤵
    • Drops file in Program Files directory
    • Modifies Internet Explorer settings
    • Suspicious use of WriteProcessMemory
    PID:1400
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\system32\regsvr32 /s "C:\Program Files (x86)\DosPop\DospopToolbar\dospop.dll"
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Modifies Internet Explorer settings
      • Modifies registry class
      PID:2516

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        basis.xml

        • Path C:\Program Files (x86)\DosPop\DospopToolbar\basis.xml
        • Size 7KB
        • SHA256 c0d0a01a21c19475a5be0b5552e992520da735d86e6a40688b26735d4a7490b5
        • MD5 SHA1 SHA512 SSDEEP

        dospop.crc

        • Path C:\Program Files (x86)\DosPop\DospopToolbar\dospop.crc
        • Size 223B
        • SHA256 194c4acf404911afcd0f563659ffcc45f33f249e0e41e8681cc15308d0132903
        • MD5 SHA1 SHA512

        dospop.dll

        • Path C:\Program Files (x86)\DosPop\DospopToolbar\dospop.dll
        • Size 2.1MB
        • SHA256 0c647f88a0f7f7d6ea9796bd7b0401b6359edeb21060c26b911dcfdfc874b37f
        • MD5 SHA1 SHA512 SSDEEP

        icons.bmp

        • Path C:\Program Files (x86)\DosPop\DospopToolbar\icons.bmp
        • Size 60KB
        • SHA256 6f00271baba262330950c748e67f41f0d2c98d5e0a5ef7cf099d864d7d9891c0
        • MD5 SHA1 SHA512 SSDEEP

        logo16.bmp

        • Path C:\Program Files (x86)\DosPop\DospopToolbar\logo16.bmp
        • Size 6KB
        • SHA256 4d502980795f580774e0904c22cef73aaf81eef9858e67e05d0ef10b74c62105
        • MD5 SHA1 SHA512 SSDEEP

        options.html

        • Path C:\Program Files (x86)\DosPop\DospopToolbar\options.html
        • Size 6KB
        • SHA256 29e525a91d8ac4ec6bb2fa299a404d9f151b45400c7cab09675a23469373435b
        • MD5 SHA1 SHA512 SSDEEP

        static_img.html

        • Path C:\Program Files (x86)\DosPop\DospopToolbar\static_img.html
        • Size 503B
        • SHA256 e94503ad0ea2a4f7002ba70f57e12da9daabb5037b6bedc7725d1fc43a487415
        • MD5 SHA1 SHA512

        static_pub.html

        • Path C:\Program Files (x86)\DosPop\DospopToolbar\static_pub.html
        • Size 599B
        • SHA256 29101ddb9fc880b921c78a8aa0952310ccf0fe4eb03479425500fc2e779d4b2b
        • MD5 SHA1 SHA512

        tbhelper.dll

        • Path C:\Program Files (x86)\DosPop\DospopToolbar\tbhelper.dll
        • Size 316KB
        • SHA256 d5df73f377bb5113a5e1c4f7872db6ec4753568a1dadf8d5d09798ac9038ad29
        • MD5 SHA1 SHA512 SSDEEP

        tbs_include_script_008091.js

        • Path C:\Program Files (x86)\DosPop\DospopToolbar\tbs_include_script_008091.js
        • Size 2KB
        • SHA256 078d1eadf0733de055e1ca4ff03bdab7203a66823e9cb4d5a8539d84276759a5
        • MD5 SHA1 SHA512

        toolbar-logo-dospop.bmp

        • Path C:\Program Files (x86)\DosPop\DospopToolbar\toolbar-logo-dospop.bmp
        • Size 2KB
        • SHA256 759282b69a5a1c30a01e0ef7c19a2eb59955e33f0caa0b066e418ef54f5c5884
        • MD5 SHA1 SHA512

        uninstall.exe

        • Path C:\Program Files (x86)\DosPop\DospopToolbar\uninstall.exe
        • Size 48KB
        • SHA256 7c30673fde7090d6f74623d9bf99e1b2f9661ec94d21d3c2ffb80e1c56d60891
        • MD5 SHA1 SHA512 SSDEEP

        update.exe

        • Path C:\Program Files (x86)\DosPop\DospopToolbar\update.exe
        • Size 76KB
        • SHA256 3751b8982c25d16aee9bc7dd5e22c83f323c8c68780012773612778f20279af8
        • MD5 SHA1 SHA512 SSDEEP

        version.txt

        • Path C:\Program Files (x86)\DosPop\DospopToolbar\version.txt
        • Size 49B
        • SHA256 0f85f776d85b5ee164a43c166dab525625655bd42b6c0503fa8d36fb702df666
        • MD5 SHA1 SHA512

        memory/2516-43-0x0000000002540000-0x0000000002593000-memory.dmp