Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ff59560286f6053…

MALICIOUS

PDF

43.9 KB Created: 2020-08-09 03:09:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 813ef232cb59d802e531b00385318f61 SHA-1: d5ae3cfd5a85c52dc13541338b6d8d990ee1d22b SHA-256: 4ff59560286f60537205ede1ef966c3e6568f4d0a1faaeaa19f28597cd3eb07a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at `ttraff.ru`. This suggests a link farm or SEO poisoning tactic to lure users to malicious content. The document body contains the malicious URL, indicating a direct attempt to trick the user into clicking it. No scripts were extracted, limiting the analysis of further payload 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=analise+de+dados+com+python+pdf In PDF document text
    • http://files.jewishnanaimo.com/uploads/1/3/2/6/132683137/lesidujabe.pdfIn PDF document text
    • http://files.chrislilly.tv/uploads/1/3/0/8/130814078/1329bc08151883c.pdfIn PDF document text
    • http://jikuna.mrserickagraham.org/uploads/1/3/0/7/130739783/zekazibilosejesa.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/1/0433/5104/8357/files/78682059747.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4189/0208/files/dubstep_ringtones_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8802/7556/files/5e_death_domain.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/64630415929.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8000/0423/files/pune_road_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7785/1550/files/80245493190.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6289/4495/files/60384960756.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4760/8730/files/rusozuxibekiganowitosipof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6934/9794/files/86354609640.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4625/6295/files/gabotokixefodurevutimafi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0559/1200/files/sowosisofarozewitoripese.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 5

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_off000069a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69A4 5392 bytes
SHA-256: d10effcbe9826b3eb1f667cd25d2b2c8acc94492e13d06634aa3f48df52f7f04
font_01_sfnt_off00007be5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BE5 12328 bytes
SHA-256: 13a90b01ffe7e243dcb536f5aa3f02b5dd8b1e90650fe4e1628fe114aa8e15ae

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