Malicious PDF — malware analysis report

Static analysis result for SHA-256 35f7402f20757be5…

MALICIOUS

PDF

34.5 KB Created: 2021-06-22 14:30:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b5df4669006d61ddcd903610f4d9a287 SHA-1: 9e80502c619873433bc445f97162bfa4d3340e9e SHA-256: 35f7402f20757be507028e03a8afb0d5fe739e75764fdac0decb4c6bd31823d2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple embedded links and a visible call-to-action button, all directing users to a known malicious redirector. The primary lure is related to game hacks and generators, specifically for Robux. The ML classifier strongly indicates maliciousness, and the overall structure suggests an attempt to trick users into visiting a compromised site, likely to download further malware or engage in phishing.

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/use-cheat-engine-to-get-robux-game-hack In PDF document text
    • https://donrazvitie.ru/images/robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/free-robux-co_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/roblox-is-using-cheat-engine-hacking_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/how-to-get-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/avatar-roblox-game_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/coin-master-in-app-purchase-hack_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/free-robux-survey_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/coin-master-apk-hack-2021-ios_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/free-online-games-like-roblox-no-download_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/do-coin-master-hacks-work_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/hack-robux_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/free-spin-and-coin_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/minecraft-java-edition-code-free_GM479516143.pdfIn PDF document text
    • https://donrazvitie.ru/images/get-robux-com_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • https://donrazvitie.ru/images/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/roblox-its-free_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/how-to-hack-games-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/roblox-redeem-card-free-2021_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/how-to-get-free-robux-hack_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_off00003186.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3186 21936 bytes
SHA-256: ce0dd7faf221e24266603887e68431dd7cab1ab23b54c1a864802f30713b28de
font_01_sfnt_off0000620b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x620B 18944 bytes
SHA-256: 3807a0e6f719dd21f8092130157e0ac47ef616f190e9efa0657beb25a25973e2

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