Malicious PDF — malware analysis report

Static analysis result for SHA-256 a60e9b4167dabbb0…

MALICIOUS

PDF

40.7 KB Created: 2021-05-13 23:45:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: dcdb7ab5cd44fed035fe8882d1010550 SHA-1: 409f1a1dc5d94c3046e41d070d1184dff8a6d7c8 SHA-256: a60e9b4167dabbb028a488c4868c8b24ca6f61624d5e661fe3265ee59740d7bb
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains links to known malicious redirectors and websites offering game hacks, indicating a lure to potentially malicious content. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect users to external sites, likely for further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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.
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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/master-coin-free-spin-game-hack In PDF document text
    • http://precisionheavyhaul.com/images/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/free-printable-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/hack-coin-master-spin_GM406889139.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/minecraft-hacks-18-9_GM479516143.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/roblox-cheat-codes_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/minecraft-alt-accounts-free_GM479516143.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/free-hair-roblox-boy_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/coin-master-cheat-codes-free_GM406889139.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/hack-the-coin-master_GM406889139.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/coin-master-hack-no-verification-ios_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_off000048f3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48F3 25200 bytes
SHA-256: a7189bc14cff1b39e414273963658c57da3176664524133062378cd6b9134042
font_01_sfnt_off0000816c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x816C 17884 bytes
SHA-256: 2eace5707960ab6674c345fc5925bb74d79b72c9d0e947ec779627780b9711cb

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