Malicious PDF — malware analysis report

Static analysis result for SHA-256 7db70b2facc99220…

MALICIOUS

PDF

33.9 KB Created: 2021-07-06 12:17:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: a491d217cbef4e3d8da5edfb57a84c51 SHA-1: 0944c07893043e234aa2770e434b246d6a6438c7 SHA-256: 7db70b2facc9922036375a8368e13a2d05ffe281a3d08dc97d455b9919877cca
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free currency' lures. The primary redirect URL is http://netcdn.tw/app/479516143/how-to-download-minecraft-for-free-on-pc-game-hack. This indicates a phishing or scam attempt designed to trick users into visiting potentially harmful sites. No scripts were extracted, but the presence of embedded URLs and the ML classification strongly suggest malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/how-to-download-minecraft-for-free-on-pc-game-hack In PDF document text
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id//repository/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id/repository/roblox-free-hats-generator_GM431946152.pdfIn PDF document text
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id/repository/coin-master-unlimited-spins_GM406889139.pdfIn PDF document text
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id/repository/www-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id/repository/free-antlers-roblox_GM431946152.pdfIn PDF document text
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id//repository/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id//repository/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id/repository/how-to-get-free-robux-no-survey-2021_GM431946152.pdfIn PDF document text
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id/repository/robux-hack-deutsch-pc_GM431946152.pdfIn PDF document text
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id/repository/orewards-com-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id//repository/coin-master-hack-without-verification-site-zyngaplayerforumscom_GM406889139.pdfIn PDF document text
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id//repository/minecraft-book-collection_GM479516143.pdfIn PDF document text
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id//repository/coin-master-daily-free-spins-link-today-blog_GM406889139.pdfIn PDF document text
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id/repository/claimrbx-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id//repository/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id/repository/how-to-get-free-robux-no-hack-no-waiting_GM431946152.pdfIn PDF document text
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id/repository/2021-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id//repository/free-pet-treats-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id//repository/robux-websites-that-work_GM431946152.pdfIn PDF document text
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id/repository/free-bc-roblox-pastebin_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000308a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x308A 21888 bytes
SHA-256: 68e4fe94abfb0c2ee651aa19dac7805559ee0779a50dce903be6298d713f7141
font_01_sfnt_off00006059.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6059 18732 bytes
SHA-256: 69a399aea7e8e9e53aabe761e00b32a0ad386cf270ee829a52c6d6d4a2342596

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