Malicious PDF — malware analysis report

Static analysis result for SHA-256 65f35bf8bb2edbd5…

MALICIOUS

PDF

33.6 KB Created: 2021-07-06 06:57:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c627795d624d97067fb37ca40ddab32c SHA-1: de189ea7ead899e85ddb86aed01a39760f9f953b SHA-256: 65f35bf8bb2edbd5cca28a1ed797b4de53d3ede6737043676df37919691fa6d7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and generators, directing users to a known malicious redirector. The embedded URLs and document body content strongly suggest a phishing or scam attempt, likely to lead users to further malicious sites or downloads. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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/431946152/how-to-make-robux-on-roblox-game-hack In PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/free-robux-sites-2021_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/coin-master-spins_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/free-tiktok-like_GM835599320.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/roblox-builders-club-free_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/roblox-redeem_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/dead-winter-roblox-credits-hack_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/coin-master-free-spins-2-5-2021_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/minecraft-wurst-client_GM479516143.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/coin-master-fun-hack_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/roblox-cheat-engine-and-ccv5-bypass_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/7-year-old-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/free-pc-robux_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/one-punch-man-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/free-roblox-combos_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/free-roblox-card-code-generator-2021_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/roblox-bot-games-free_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/roblox-island-royale-cheats_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/pokemon-go-free-legendary-hack_GM1094591345.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_off00002d6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D6E 21936 bytes
SHA-256: acb90efde7e8af9a236bfe22ba461bba5abd4c147db07cdeae9dfd81b2bf910c
font_01_sfnt_off00005e00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E00 19156 bytes
SHA-256: 128e60f715d7afbef12cda7c0144ab11bcbc803adac1d8a1b7c03f335231ca57

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