Malicious PDF — malware analysis report

Static analysis result for SHA-256 a772f1bd98badc73…

MALICIOUS

PDF

50.4 KB Created: 2020-08-02 16:13:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0ca1f05997230c1b82a160bd504c77f7 SHA-1: ed8435087f53b5e566db9b78245d8b6f2b74fd9f SHA-256: a772f1bd98badc732dbe0e11f458769473776699d68a6560b998741eb405e304
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text referencing 'Dnd 3. 5e player's handbook pdf' and the malicious URL, indicating a lure to trick users into clicking the link. The PDF also hosts a large number of external links, many pointing to Shopify domains, suggesting a link farm or SEO poisoning tactic to distribute the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • 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.com/pify?keyword=dnd+3.+5e+player%2527+s+handbook+pdf In PDF document text
    • http://files.nypa.com.au/uploads/1/3/1/6/131636655/6a2b92a2.pdfIn PDF document text
    • http://files.leenajuvonen.com/uploads/1/3/0/8/130874676/6795280.pdfIn PDF document text
    • http://files.lutoncentralmosque.org/uploads/1/3/2/3/132303001/lovezuwoxurujiba.pdfIn PDF document text
    • http://files.fightingsawks.com/uploads/1/3/1/4/131407668/runajilisaxasinuba.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/1/0439/0384/4520/files/venetinato.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4115/3439/files/54613839681.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6640/0663/files/kawibipif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2351/5294/files/8493796748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8165/4691/files/9349741940.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2066/5510/files/22648627162.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2041/1289/files/wevovaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5954/3192/files/9119723122.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8489/7701/files/15990174740.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3804/7384/files/32721094607.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5062/3385/files/66335067037.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8614/2876/files/dudedeli.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 6

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_off00008629.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8629 5788 bytes
SHA-256: c8ab514fcd930a966c21eb12791586f240f0355d8aa28a75d4d2a322519cf2e6
font_01_sfnt_off000099f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99F1 10112 bytes
SHA-256: 51f211417dbc7b58ea2a6b41b57f3ea0fb92d0492c5c6c93123f5f0bac9ea817

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