Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d73d7234b9938d0…

MALICIOUS

PDF

39.3 KB Created: 2020-08-18 20:20:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d8a83276b38ab9c0d1ec969c09d356f0 SHA-1: fd6054301ef0d5b341e77251a363b277af7ee245 SHA-256: 5d73d7234b9938d0728aaab80f32a9298eabc4fa0794ff92fe2c5e4097116645
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one leading to a known malicious redirector infrastructure. This redirector is designed to obscure the final destination, which appears to be a link farm of PDFs hosted on Shopify. The document body, though heavily obfuscated, contains the redirector URL and several Shopify URLs, suggesting a phishing or malware distribution attempt. No scripts were extracted, but the presence of malicious redirectors and a large number of outbound links points to a coordinated effort to distribute 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=movies+watch+offline+android In PDF document text
    • http://vupiburij.kingseducationprogram.ca/uploads/1/3/0/8/130814328/a4fbb0c.pdfIn PDF document text
    • http://safuvawa.idacanart.com/uploads/1/3/1/3/131383482/4571b7.pdfIn PDF document text
    • http://files.decatn.org/uploads/1/3/2/6/132681352/a283754eff5c2.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/1/0436/5189/1358/files/cheat_engine_6._4_no_virus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6127/2995/files/35040316077.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4786/9850/files/baova_ena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4220/9945/files/css_chevron_arrow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9095/8749/files/dulorukibemadaraw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3358/4028/files/guide_post_spacing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8033/3989/files/achievement_cv_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2684/0738/files/2552287794.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_off00005b70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B70 5268 bytes
SHA-256: 90d85e88e24cb5f1449012e2f1d4ef4f2daa10cb3e64eaf5d785c14cd086bb08
font_01_sfnt_off00006d6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D6F 10352 bytes
SHA-256: f0724bf4375f65b55f542bd9f8e60285ede3b1e280c947d24ddf8496fb051364

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