Malicious PDF — malware analysis report

Static analysis result for SHA-256 35c24c7133474648…

MALICIOUS

PDF

34.9 KB Created: 2021-06-19 01:34:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 287580a1ffc28adf5b8d1114612e8884 SHA-1: cbf3beeedbfe98122e35e72c6e47a1d1562437f3 SHA-256: 35c24c713347464801b928ccc39f6036d0ab42353bc2bd7c4d85901fcd9e9dcf
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to a malicious URL, disguised as game hacks and generators. The heuristic firings indicate that these links are part of a malicious redirector infrastructure, designed to lure users into clicking. The document body also contains the primary malicious URL, reinforcing the phishing lure.

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/cheats-for-terminator-gensys-for-roblox-game-hack In PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-minecraft-generator_GM479516143.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-parris-island-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/coin-master-hacks-to-get-spins_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/roblox-war-tycoon-cheats_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-make-a-minecraft-pe-server-for-free_GM479516143.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/roblox-discord-bot-hacked_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-codes-on-roblox-assassin_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/https-iosgodscom-topic-20214coinmasterhack_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/tiktok-free-real-followers_GM835599320.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/complete-obby-for-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-get-free-coins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/hacked-roblox-game_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/minecraft-ps4-code-free_GM479516143.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/hack-coin-master-dzooka_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-get-robux-for-free-hack_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/cheat-codes-for-tuber-simulator-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/get-free-robuxg_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_off0000308c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x308C 22356 bytes
SHA-256: a3b231b929a1509f8d27ed15a2512b28b5c462e85c2d4c1e1a6df3da3a9eb59d
font_01_sfnt_off00006264.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6264 19480 bytes
SHA-256: 345a45cead379dec9f67560f4c02afbac7a9e18ba923ec24926da31dc9f47202

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