Malicious PDF — malware analysis report

Static analysis result for SHA-256 734d8b48560870d9…

MALICIOUS

PDF

56.3 KB Created: 2020-08-03 23:36:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fb82b63ea4ba19f5537dbadb04a9140d SHA-1: a7643d9ba8b783ed6f2c18b4e0254ba90eb3d64d SHA-256: 734d8b48560870d9574e03a160f96e55e023b65c947e247d8f22ed9d009a3e34
194 Risk Score

Malware Insights

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

This PDF file contains numerous embedded links, many of which point to a redirector service (ttraff.ru) that is flagged as malicious. The document body, though obfuscated, also contains the same redirector URL and other Shopify-hosted PDF links, suggesting a link farm designed to manipulate search engine results for malicious purposes. The primary malicious URL is https://ttraff.ru/pify?keyword=algebra+formulas+with+examples+pdf, which likely serves as a lure 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=algebra+formulas+with+examples+pdf In PDF document text
    • http://files.chivasuka.com/uploads/1/3/0/8/130874599/dbff0a0ea9a2369.pdfIn PDF document text
    • http://files.marilyndavidsonflatware.com/uploads/1/3/1/3/131379894/wanekudesozojek_naximajivojasuw.pdfIn PDF document text
    • http://files.chalmerslondon.com/uploads/1/3/1/4/131453018/dojedesonixix_mevisexatixu.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/1/0435/9539/9325/files/43629977295.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90262961418.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9628/0993/files/confusion_will_be_my_epitaph.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5147/5351/files/xizoxupokax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4912/3993/files/check_mysql_version.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8617/5651/files/nuwave_oven_elite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6211/6008/files/xanefifuxoditejogok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8039/8486/files/10999636355.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5783/9254/files/3603107738.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8905/8206/files/dujapibuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5263/7091/files/zoxudifakipud.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_off00009372.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9372 5744 bytes
SHA-256: 42d7d3d3c56410d0308266176c38e596783feccae98684c9ba4d556b59437d9d
font_01_sfnt_off0000a6e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6E5 14268 bytes
SHA-256: a7c3d95246d8ed19c287afb555ad95c440562ca39a010e44ecf10e580895c121

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