Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f5750c0b6d55e4d…

MALICIOUS

PDF

35.2 KB Created: 2021-06-25 19:59:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a3eb80ce9064fdfbe1cbc7738f93bc27 SHA-1: 4f9d8df939d082b0d1c62b805d769437e9a3886d SHA-256: 6f5750c0b6d55e4dec88fba4a033eeaefd16269a0963159c841e40bfda1d3274
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple links that redirect to a 'game hack' lure, indicating a social engineering attempt to trick users into downloading malicious content. The ML classifier also strongly flagged this PDF as malicious. The primary IOC is the redirector URL which is likely used to host or serve the final payload.

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.co/app/431946152/how-to-hack-times-in-roblox-games-game-hack In PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-free-spins-activegamer_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/minecraft-bedrock-free-with-java_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/robloxgainer-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/minecraft-svg-images-free_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-spin-coin-master-app-download_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coinmaster-com_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/pokemon-go-free-7-day-streak-rewards_GM1094591345.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/robux-redeem_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-strucid-hack-script_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-hack-dragon-ball-z-revalations-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/real-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/hack-de-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-hack-roblox-mobile-android_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-hack-ios-no-human-verification_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-game-hunters-club_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/best-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-free-robux-items_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-claim-spins_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-get-free-money-on-adopt-me-in-roblox_GM431946152.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_off000032bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32BB 22200 bytes
SHA-256: c25ccbb82358c267fd7aae9bfc4f440c29654937a1441b36ca47144626a84d71
font_01_sfnt_off00006425.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6425 19200 bytes
SHA-256: 95a7103ff7243062529b6dc939c171eac01b9986cbb84505aec541e09a5b8915

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