Malicious PDF — malware analysis report

Static analysis result for SHA-256 d97d2a1d6549b62a…

MALICIOUS

PDF

54.0 KB Created: 2020-08-08 20:07:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 765ddfee77f1ba28bafcb6dbe11f064b SHA-1: d6f2daddc0cdc889857afd2a30aad8c8fbb9b69c SHA-256: d97d2a1d6549b62a22973a1d91d9e5d3a1c4b02ffaf7d63c96e6bbb192dca3d1
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external PDFs hosted on various domains, including a known malicious redirector at ttraff.ru. The document body, though heavily obfuscated, contains the URL to the malicious redirector, suggesting the intent is to lure the user to this malicious site. The presence of numerous links, including those to Shopify, indicates a link farm SEO strategy to improve search engine visibility 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=working+capital+management+project+synopsis+pdf In PDF document text
    • http://files.twigadesigns.com/uploads/1/3/1/0/131070152/xifefatuliviw-digez-tilolu-kefodozitaxep.pdfIn PDF document text
    • http://doxikejo.rogharris.org/uploads/1/3/2/6/132682646/geroxodagoxina.pdfIn PDF document text
    • http://files.taoslightandshadow.com/uploads/1/3/1/4/131408017/a0eaee1.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/1/0433/5943/6951/files/77174659986.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1947/6896/files/96743842999.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6556/3541/files/acatech_industrie_4._0.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7543/6698/files/15448421857.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0581/1608/files/77534591628.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/4160/8100/files/akuntansi_sektor_publik_mardiasmo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0945/7825/files/jedevinu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8618/3576/files/56934153833.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9888/0680/files/understand_your_man_tim_lahaye.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4089/7184/files/bireluteboderor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5563/5871/files/lactational_amenorrhea.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_off000094fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94FD 5728 bytes
SHA-256: 5a32bcb00185a65c0279d68b9cea19b2c4a3084024836a3e28a9d48a16233375
font_01_sfnt_off0000a891.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA891 9980 bytes
SHA-256: c7cc0700ced34a7910415ef6bda3af58ae00cf0d8a5d948575a026690165eef2

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