Malicious PDF — malware analysis report

Static analysis result for SHA-256 6feeddd45fe5005b…

MALICIOUS

PDF

45.9 KB Created: 2020-08-09 19:51:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: be766572bbda28aa76ad627efde22896 SHA-1: 5cbf2173f9a3bd8b035647684be07069a181da5d SHA-256: 6feeddd45fe5005b47d13fc97c8c83b3ef6f74f81b6bcace7a10168ddf540775
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.ru) disguised as free downloads. The ML classifier strongly indicated maliciousness, and heuristics identified it as a link farm and redirector. While no scripts were directly extracted, the PDF structure and embedded links suggest an attempt to lead users to malicious sites, likely for phishing or malware delivery.

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=bhakti+yoga+pdf+free+download In PDF document text
    • http://files.wabashcotobaccofree.net/uploads/1/3/1/0/131069781/zawuzibodufusobapuf.pdfIn PDF document text
    • http://puwetaju.newavenuescounseling.com/uploads/1/3/2/7/132710621/gupelodavanezinumul.pdfIn PDF document text
    • http://files.boneandjointdocs.com/uploads/1/3/1/4/131408928/vuzuwawimewejidagesu.pdfIn PDF document text
    • http://files.salonargio.com/uploads/1/3/1/4/131483148/kekemedotowix.pdfIn PDF document text
    • http://files.mycorporateteambuilding.com/uploads/1/3/2/3/132302978/68c5c659.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/1/0433/4524/8407/files/annotate_free_ios.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8107/1782/files/vixoza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1415/0565/files/52237498263.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7092/2655/files/82085892960.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9298/2427/files/kixarabozirimego.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7442/8827/files/86082889695.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/571475918.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5562/1031/files/7057936226.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2834/8056/files/boleva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7104/4770/files/breakthrough_prayer_jim_cymbala.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8254/6341/files/mafugaredodojajob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99231100330.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_off000074b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74B2 5432 bytes
SHA-256: 69d00da983e6ecf42902688c7a55a04c21ec2646e646949eec93f4b8d7288b7e
font_01_sfnt_off00008749.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8749 10332 bytes
SHA-256: 13d0a7687646dad2ca810ec0e4edde6ad1edfc47330bb8141cb3d4e56c69c3b0

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