Malicious PDF — malware analysis report

Static analysis result for SHA-256 78107dc59c5505a7…

MALICIOUS

PDF

33.6 KB Created: 2021-07-04 09:39:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 35d5308980c4b6c27b98723b41ddc832 SHA-1: d2c5fea8fa5876b7de16c04e9ef2fbc72e49bdd0 SHA-256: 78107dc59c5505a784724d887e018729b980891ab6183f79c347b0e1d7d3dadd
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded links, with a primary link identified as a malicious redirector. The document body and heuristics suggest a lure for game hacks and generators, aiming to entice users to click the malicious URL. The ML classifier also flagged this PDF as malicious with high confidence.

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/minecraft-pe-mod-menu-game-hack In PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-roblox-email_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-spin-link-hack_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-robux-no-hack-or-glitch_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-desert-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-can-you-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-servers-that-give-free-robux-march-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-accounts-roblox-2021-live_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-cracked-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-hack-your-roblox-account-to-get-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-hack-bugmenot_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/will-roblox-be-for-free-when-it-come-to-ps4_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-100-spin_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-robux-on-phone-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-food-tycoon-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-do-you-get-free-robux-on-robloxcom_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-minecraft-for-free-ios_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-minecraft-skin-creator_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-robux-on-laptop-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hacks-to-use-in-roblox_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_off00002f37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F37 22160 bytes
SHA-256: f36b4ec04d2698ee7a802ab963aa63876506795dd44d4eb8ca954773717eb6a8
font_01_sfnt_off00005ff8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF8 18468 bytes
SHA-256: 270bd677220d8e236dad59b99a180391c2ade1823ff393683d940e1d5a26ecaa

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