Malicious PDF — malware analysis report

Static analysis result for SHA-256 0496cde545831e77…

MALICIOUS

PDF

253.2 KB Created: 2020-08-11 01:09:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0d20d12e59f440d1659391e16d2ee5ea SHA-1: ec38971f3174b7b313462804daf65e1d6672822a SHA-256: 0496cde545831e77d1f1ddae9e398673ec13cfdc161793b17c4e44d9a3fe11ff
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF file contains heuristics indicating it's a malicious redirector and uses a social engineering lure to trick users into installing browser extensions or updates. The embedded URL `https://ttraff.cc/pify?keyword=online+pdf+editor+to+ms+word` is flagged as malicious redirector infrastructure, suggesting it leads to a malicious site. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://ttraff.cc/pify?keyword=online+pdf+editor+to+ms+word In PDF document text
    • http://files.ericwildergraphics.com/uploads/1/3/0/7/130739112/7669853.pdfIn PDF document text
    • http://files.saprac.org/uploads/1/3/1/4/131452935/e1e3eb75.pdfIn PDF document text
    • http://files.wandagillespie.com/uploads/1/3/0/7/130738876/pepililidev.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/0469/3400/files/badger_5_insinkerator_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1138/1147/files/fate_zero_opening_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1036/5339/files/siwiziwepokizawokomeviv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2403/9592/files/72878213600.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7258/4861/files/naxedibe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6043/5873/files/21188918817.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6914/5241/files/50325048065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4160/2208/files/98541673982.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2640/7833/files/zejovikozox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8457/1031/files/wemesirafetupani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9432/7961/files/xerelaridiravaleko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1320/8226/files/60686006997.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003a4c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A4C8 5096 bytes
SHA-256: 2948070d99463d926b82a17a2efb84c8cd86d35c0fabebeb78c2280cef96f790
font_01_sfnt_off0003b61a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B61A 15728 bytes
SHA-256: 34509ccd38511604c1a106293acef71ff6ac39f19274cb38c13fcf13550bb2c8

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