Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a38e8d7ae79da9c…

MALICIOUS

PDF

45.5 KB Created: 2021-05-14 22:45:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 85fa265306ca4e0b8809a1c01a662902 SHA-1: 665bd30a8e116d11979fdc5609da53ed44823237 SHA-256: 9a38e8d7ae79da9c833d601974562467190b273c7ebff6257f905a6a7d555a38
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, including one identified as a malicious redirector. The document body and heuristic firings indicate a lure for 'game hacks' or 'generators', suggesting an attempt to trick users into downloading further malicious content. No scripts were extracted from this sample, but the embedded URLs 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 https://netcdn.xyz/app/479516143/minecraft-pe-hacks-2021-game-hack In PDF document text
    • https://www.stedwardscheddleton.co.uk/admin/ckfinder/userfiles/files/coin-master-heaven-links-free-spins_GM406889139.pdfIn PDF document text
    • https://www.stedwardscheddleton.co.uk/admin/ckfinder/userfiles/files/hack-para-coin-master-sin-verification_GM406889139.pdfIn PDF document text
    • https://www.stedwardscheddleton.co.uk/admin/ckfinder/userfiles/files/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • https://www.stedwardscheddleton.co.uk/admin/ckfinder/userfiles/files/free-coin-master-gift-link_GM406889139.pdfIn PDF document text
    • https://www.stedwardscheddleton.co.uk/admin/ckfinder/userfiles/files/coin-master-free-link-blogspot_GM406889139.pdfIn PDF document text
    • https://www.stedwardscheddleton.co.uk/admin/ckfinder/userfiles/files/free-roblox-templates_GM431946152.pdfIn PDF document text
    • https://www.stedwardscheddleton.co.uk/admin/ckfinder/userfiles/files/tower-of-hell-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.stedwardscheddleton.co.uk/admin/ckfinder/userfiles/files/instagram-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://www.stedwardscheddleton.co.uk/admin/ckfinder/userfiles/files/minecraft-pe-free-ios_GM479516143.pdfIn PDF document text
    • https://www.stedwardscheddleton.co.uk/admin/ckfinder/userfiles/files/minecraft-free-school_GM479516143.pdfIn PDF document text
    • https://www.stedwardscheddleton.co.uk/admin/ckfinder/userfiles/files/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • https://www.stedwardscheddleton.co.uk/admin/ckfinder/userfiles/files/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • https://www.stedwardscheddleton.co.uk/admin/ckfinder/userfiles/files/free-minecraft-capes_GM479516143.pdfIn PDF document text
    • https://www.stedwardscheddleton.co.uk/admin/ckfinder/userfiles/files/coin-master-free-spins-and-free-coins_GM406889139.pdfIn PDF document text
    • https://www.stedwardscheddleton.co.uk/admin/ckfinder/userfiles/files/coin-master-cheat-to-get-free-spins_GM406889139.pdfIn PDF document text
    • https://www.stedwardscheddleton.co.uk/admin/ckfinder/userfiles/files/how-to-download-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • https://www.stedwardscheddleton.co.uk/admin/ckfinder/userfiles/files/free-spins-coin-master-links-no-human-verification_GM406889139.pdfIn PDF document text
    • https://www.stedwardscheddleton.co.uk/admin/ckfinder/userfiles/files/get-robux_GM431946152.pdfIn PDF document text
    • https://www.stedwardscheddleton.co.uk/admin/ckfinder/userfiles/files/robux-xyz_GM431946152.pdfIn PDF document text
    • https://www.stedwardscheddleton.co.uk/admin/ckfinder/userfiles/files/freespinandcoin_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_off00004e29.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E29 29304 bytes
SHA-256: a34e16c3c4e85ac213707e40b4055852e8e6f461c90e243de5790c760e8707bc
font_01_sfnt_off00008ffa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FFA 18296 bytes
SHA-256: 928fda8d6cdf740c8aa958f6e9db818f0cdae9318cc1084247adea2ad4ad4e6f

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