Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c67927d3b7f2e68…

MALICIOUS

PDF

42.5 KB Created: 2021-05-17 22:48:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 24fd1d010d37472f0c47fcb856ade8af SHA-1: da42ec27fc4c474fee4ec754729d2d108e4785b7 SHA-256: 0c67927d3b7f2e687f8e8285754b6b63c92a1103a01ce45f8c5fbdceaa5b5a2e
160 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a game hack redirect lure, pointing to a known malicious URL. The document body, though heavily obfuscated, contains references to game hacks and the malicious URL. The presence of embedded URLs and the ML classifier's high confidence score further support the malicious nature of this document, likely intended to trick users into visiting a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/406889139/coin-master-hack-ios-download-game-hack In PDF document text
    • https://www.fhccu.com/images/where-to-get-robux_GM431946152.pdfIn PDF document text
    • https://www.fhccu.com/images/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • https://www.fhccu.com/images/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
    • https://www.fhccu.com/images/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.fhccu.com/images/hacker-coin-master_GM406889139.pdfIn PDF document text
    • https://www.fhccu.com/images/free-roblox-generator-for-roblox_GM431946152.pdfIn PDF document text
    • https://www.fhccu.com/images/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://www.fhccu.com/images/coin-master-daily-free-spin-and-coin-link-haktuts_GM406889139.pdfIn PDF document text
    • https://www.fhccu.com/images/best-free-robux-sites_GM431946152.pdfIn PDF document text
    • https://www.fhccu.com/images/coinmaster-fan-page_GM406889139.pdfIn PDF document text
    • https://www.fhccu.com/images/free-robux-com-no-verification_GM431946152.pdfIn PDF document text
    • https://www.fhccu.com/images/coin-master-invite-friends-hack_GM406889139.pdfIn PDF document text
    • https://www.fhccu.com/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://www.fhccu.com/images/minecraft-hacks-ps4_GM479516143.pdfIn PDF document text
    • https://www.fhccu.com/images/robloxfun-com-generator_GM431946152.pdfIn PDF document text
    • https://www.fhccu.com/images/rewards-robux_GM431946152.pdfIn PDF document text
    • https://www.fhccu.com/images/coin-master-hack-apk-ios_GM406889139.pdfIn PDF document text
    • https://www.fhccu.com/images/minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • https://www.fhccu.com/images/free-robux-websites-2021_GM431946152.pdfIn PDF document text
    • https://www.fhccu.com/images/coin-master-free-100-spin-link_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
stream_003_off00004b43.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B43 25004 bytes
SHA-256: 07f32378612fa02dacaa2b8e048476fe744df01e19d087cc0792faccccc0edb2
font_01_sfnt_off00008377.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8377 18296 bytes
SHA-256: abb5dc3882d33bb675e42633b9ef907b5fa8a8f8ffe877e273a1ba74b2e79714

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