Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc8de7bf7b0ca8d2…

MALICIOUS

PDF

43.6 KB Created: 2021-04-26 04:20:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 169724146ea0cce8098df77f14a5d33b SHA-1: 5463d1046e55c154ee2b39b0bb4eb5358310fd0a SHA-256: bc8de7bf7b0ca8d24b0851e1746d815c8f04d7b4f13f52196cb728e6b06d2e50
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirector infrastructure, specifically promoting 'game hacks' and 'free generators' for Roblox. The document body explicitly contains a call to action to 'CLICK HERE TO ACCESS ROBLOX GENERATOR' and directs users to the malicious URL. This indicates a phishing or scam attempt designed to lure users to potentially malicious websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9868

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 https://netcdn.xyz/app/431946152/cheater-sur-roblox-nul-game-hack In PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-hack-no-survey-2021.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-clothes-giveaway-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-hack-your-self-getting-free-robux.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/como-hacer-hacker-en-roblox-jailbreak-2021.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-clone-tycoon-v-12-cheats.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/get-free-robux-gg.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/https-webrobloxcom-catalog-202120215-hacked.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/mobilehacks4u-free-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/mode-hacker-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-hack-any-roblox-group.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000430a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x430A 26168 bytes
SHA-256: 75b3bf9eb21dfda8a1d44f316e41ab1548ed936ab4e5e2072f0714defac209fb
font_01_sfnt_off00007e2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E2A 2832 bytes
SHA-256: 77ae1c4cffa647a8fd533dfa4102e94364989f9e80b9cd131876e9d1005899a2
font_02_sfnt_off000087da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87DA 18424 bytes
SHA-256: 2cc39ab1f560a6e8391e7bc59fde312e5fdbe5a214460b598f025f4ee62bf3eb

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