Analysis

  • max time kernel
    142s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-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 5 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 21 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious use of WriteProcessMemory 3 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:1480
    • 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:4988
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1416 --field-trial-handle=3240,i,13319578961094268484,16557498665191861597,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4092

    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/4988-44-0x0000000002F70000-0x0000000002FC3000-memory.dmp