Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d981d2f28eeb19b…

MALICIOUS

PDF

36.6 KB Created: 2020-08-20 19:55:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a50595d94b612831a439bcb568185342 SHA-1: 7e21bcdedb3fbc8c9df24e1bdbee7b240a06ace9 SHA-256: 0d981d2f28eeb19b0da5bca97728f00560e8bb5d35ccc6f06f2688ecd31fa4c7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM. The primary redirector URL, https://ttraff.com/pify?keyword=s+letter+heart+pics, is identified as malicious. The document body, though heavily obfuscated, contains references to this redirector and other Shopify-hosted PDFs, suggesting a link farm or phishing lure. No scripts were extracted, but the presence of malicious redirectors indicates an attempt to lead the user to a harmful site.

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=s+letter+heart+pics In PDF document text
    • http://files.bowsandballcaps.com/uploads/1/3/1/6/131606475/8185471.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/1/0438/8726/3899/files/risovixagufakog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1754/3588/files/vuladuzawup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3863/6192/files/bartram_trail_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7234/8579/files/39917996384.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3046/3135/files/xokali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9159/0308/files/7336294926.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0595/9588/files/67781935310.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0453/2525/4811/files/aiff_audio_interchange_file_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6992/2714/files/wupilozumaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1530/6405/files/5487392316.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 3

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_off0000512a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x512A 5124 bytes
SHA-256: c39440cfad44e6f6c5c987f684cf66bef01fea737a8df1a6f97b625819971d56
font_01_sfnt_off00006283.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6283 10548 bytes
SHA-256: 09d7074aa249f3e3171efc7684cda9cf8ade7b0f31a2a53f36eccd0d36c1a466

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