Malicious PDF — malware analysis report

Static analysis result for SHA-256 372d42ee6a4d4ce2…

MALICIOUS

PDF

34.6 KB Created: 2021-06-17 16:12:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f08dcfb845eb6ddf593f1202aa9dac20 SHA-1: 7bf494aab26d8af3db3e968b9fe6b53613ab3cd7 SHA-256: 372d42ee6a4d4ce243116b7d9d51ca4f16ce46f281e3f2481f0e5ef51100a90f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, specifically advertising game hacks and free currency for popular games like Roblox. The ML classifier also flagged this PDF as malicious. The primary attack pattern involves luring users to these external sites, likely to deliver further malware or conduct phishing. No scripts were extracted, but the embedded links are the primary indicators of malicious intent.

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/roblox-robux-cheat-engine-game-hack In PDF document text
    • https://dr-willmer.de/images/new-roblox-swordburst-2-hack_GM431946152.pdfIn PDF document text
    • https://dr-willmer.de/images/roblox-controversy_GM431946152.pdfIn PDF document text
    • https://dr-willmer.de/images/free-roblox-executor-no-key_GM431946152.pdfIn PDF document text
    • https://dr-willmer.de/images/roblox-online-free_GM431946152.pdfIn PDF document text
    • https://dr-willmer.de/images/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
    • https://dr-willmer.de/images/coin-master-cheats-for-free-spins_GM406889139.pdfIn PDF document text
    • https://dr-willmer.de/images/minecraft-pocket-edition-free-download_GM479516143.pdfIn PDF document text
    • https://dr-willmer.de/images/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • https://dr-willmer.de/images/robux-free-2021_GM431946152.pdfIn PDF document text
    • https://dr-willmer.de/images/roblox-how-to-hack-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
    • https://dr-willmer.de/images/free-robux-download-games_GM431946152.pdfIn PDF document text
    • https://dr-willmer.de/images/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
    • https://dr-willmer.de/images/coin-master-free-spins-link-quora_GM406889139.pdfIn PDF document text
    • https://dr-willmer.de/images/how-to-hack-roblox-passwords_GM431946152.pdfIn PDF document text
    • https://dr-willmer.de/images/a-hack-to-steal-robux_GM431946152.pdfIn PDF document text
    • https://dr-willmer.de/images/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://dr-willmer.de/images/free-robux-online-generator-no-survey_GM431946152.pdfIn PDF document text
    • https://dr-willmer.de/images/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • https://dr-willmer.de/images/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • https://dr-willmer.de/images/coin-master-hack-to-get-free-spins_GM406889139.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_off000030a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30A4 22404 bytes
SHA-256: a65a64d44e970a9828f1224663cb9dfb0a59e0fc9c1dac80748a147fbd043ba5
font_01_sfnt_off000062c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62C9 18832 bytes
SHA-256: dd9335cf149a5cb4d050706e937e0449abd4acc2e2a4b77d9504d3196ea09e70

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