Malicious PDF — malware analysis report

Static analysis result for SHA-256 82842ef1da0acaf6…

MALICIOUS

PDF

34.1 KB Created: 2021-07-04 09:59:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 2b0932368c030dbe074d47241389cc97 SHA-1: 65bc532997b069325819e625549587a087889c89 SHA-256: 82842ef1da0acaf6faf1a0d7d5d1e51e8cc4fc1c9d8fff86b80aa5d6fa27f445
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/479516143/best-hacked-client-game-hack PDF link annotation
    • https://daquagro.id/assets/vendor/ckfinder/userfiles/files/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • https://daquagro.id/assets/vendor/ckfinder/userfiles/files/minecraft-free-minecoins_GM479516143.pdfIn PDF document text
    • https://daquagro.id/assets/vendor/ckfinder/userfiles/files/checkmein-roblox-free_GM431946152.pdfIn PDF document text
    • https://daquagro.id/assets/vendor/ckfinder/userfiles/files/how-to-change-your-username-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://daquagro.id/assets/vendor/ckfinder/userfiles/files/coin-master-generator-hack_GM406889139.pdfIn PDF document text
    • https://daquagro.id/assets/vendor/ckfinder/userfiles/files/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://daquagro.id/assets/vendor/ckfinder/userfiles/files/pokemon-go-free-yellow-team_GM1094591345.pdfIn PDF document text
    • https://daquagro.id/assets/vendor/ckfinder/userfiles/files/free-robux-works-in-an-hour-pastebin_GM431946152.pdfIn PDF document text
    • https://daquagro.id/assets/vendor/ckfinder/userfiles/files/blox-pink-robux-free_GM431946152.pdfIn PDF document text
    • https://daquagro.id/assets/vendor/ckfinder/userfiles/files/is-pokemon-go-free_GM1094591345.pdfIn PDF document text
    • https://daquagro.id/assets/vendor/ckfinder/userfiles/files/site-hack-robux_GM431946152.pdfIn PDF document text
    • https://daquagro.id/assets/vendor/ckfinder/userfiles/files/roblox-gift-card-online-free_GM431946152.pdfIn PDF document text
    • https://daquagro.id/assets/vendor/ckfinder/userfiles/files/plug-toolbox-for-minecraft-free-ios_GM479516143.pdfIn PDF document text
    • https://daquagro.id/assets/vendor/ckfinder/userfiles/files/john-doe-roblox-hacker_GM431946152.pdfIn PDF document text
    • https://daquagro.id/assets/vendor/ckfinder/userfiles/files/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://daquagro.id/assets/vendor/ckfinder/userfiles/files/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • https://daquagro.id/assets/vendor/ckfinder/userfiles/files/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
    • https://daquagro.id/assets/vendor/ckfinder/userfiles/files/minecraft-xbox-one-edition-digital-code-free_GM479516143.pdfIn PDF document text
    • https://daquagro.id/assets/vendor/ckfinder/userfiles/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://daquagro.id/assets/vendor/ckfinder/userfiles/files/coin-master-spin-link_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003049.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3049 22488 bytes
SHA-256: ddffc6656200ad8a9d206966f02f238a4b1d3d187a35f943164d18d55fd41261
font_01_sfnt_off00006209.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6209 18492 bytes
SHA-256: 903a763f7ab233d5cbfd476072903032bf39c0f6a32515afc0c758fc5aff1474

Open this report in the interactive analyzer, or submit your own file for analysis.