Malicious PDF — malware analysis report

Static analysis result for SHA-256 93177bdf85634cf1…

MALICIOUS

PDF

41.7 KB Created: 2020-08-19 07:09:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c7c5a4b598001948c350d623ea158838 SHA-1: 7db1dafd32a0985ee7ffe1287a44c7fe5a870e3f SHA-256: 93177bdf85634cf198ebbb18818a7dbb1dd20f812c0ec7859fe88c3135d24f0c
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, which is presented to the user as a search result for 'best bowling games for pc free'. This indicates a social engineering tactic to drive traffic to malicious infrastructure. The document also contains a large number of links to external PDFs hosted on Shopify, likely part of a link farm to improve SEO for malicious content.

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=best+bowling+games+for+pc+free In PDF document text
    • http://files.h-mun.com/uploads/1/3/1/3/131379296/tofazaduf.pdfIn PDF document text
    • http://files.goldendebt.org/uploads/1/3/1/8/131857782/ziledozerofimarom.pdfIn PDF document text
    • http://files.stonehengebelleville.com/uploads/1/3/1/3/131384249/743322.pdfIn PDF document text
    • http://files.backcountrywinery.com/uploads/1/3/1/8/131871984/7204405.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/1/0429/0550/1852/files/35616311501.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1283/2932/files/mercury_throttle_control_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6980/6494/files/wings_of_fire_book_review.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9432/6939/files/43189903485.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2353/0141/files/roferonolobojetavaxar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8346/3832/files/gorijiwavezak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8970/5625/files/43218503450.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7720/6165/files/absceso_hepatico_piogeno_en_pediatria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6047/7595/files/74640915499.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9739/0244/files/welefososef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6924/2534/files/vupiluxuremiluregu.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_off0000652a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x652A 5616 bytes
SHA-256: 103c9ec40938cbc2a2805bc1f7109aa402527922761736560f319dad2782e8f4
font_01_sfnt_off0000783c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x783C 9972 bytes
SHA-256: 7242bc1149efff3a1e7e3cf6b51a190ba71e69f52c9280ac6b410c70f92063f1

Open this report in the interactive analyzer, or submit your own file for analysis.