Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f318f0b3984aaaa…

MALICIOUS

PDF

38.4 KB Created: 2020-07-28 15:21:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 25c46c9a2953dcb8c7422e9fe68b67ad SHA-1: 479d3ee968d124050519c005e75dbbb20ebfd64f SHA-256: 6f318f0b3984aaaa4ecaf8b07a558bcf657177b882251c929b6a2839d52fd37d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a critical heuristic firing indicating it points to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to a film song and authoring application details, suggesting a lure. The primary malicious URL identified is ttraff.ru, which is used in conjunction with Shopify-hosted PDF files, likely as part of a link farm or phishing campaign.

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.ru/pify?keyword=besharam+film+song In PDF document text
    • http://files.enchantinglittleminds.com/uploads/1/3/0/7/130776485/9276859.pdfIn PDF document text
    • http://files.leidenmanifesto.org/uploads/1/3/1/4/131438557/wetidajuvak.pdfIn PDF document text
    • http://files.trackingclubofma.com/uploads/1/3/1/4/131454034/6427131.pdfIn PDF document text
    • http://files.borromeogift.org/uploads/1/3/0/7/130776781/8356895.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/1/0432/1152/2209/files/wudugetawenulerixefaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/18410569865.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2758/6472/files/79287474970.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6127/9896/files/18945651729.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/50504512110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4800/0927/files/nakuzijaneporesufevalivi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2508/8168/files/venuxakosibot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7307/7415/files/72771796589.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9920/2467/files/gekojewifamowixuni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1124/3164/files/97155224427.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_off00005962.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5962 4936 bytes
SHA-256: 64667b7656a717588302ef57a0e542bf8385554c2024a4db9ca9b6d500c499dc
font_01_sfnt_off000069fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69FC 10304 bytes
SHA-256: ae73091c94218fa0258a239b4f38ca4f820ae3e8e4cd01b1db9ed473ebfa5f05

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