Malicious PDF — malware analysis report

Static analysis result for SHA-256 e82d0431570eb15a…

MALICIOUS

PDF

51.9 KB Created: 2020-08-28 04:08:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ec0e8c4883e9e6e96a162a86ba53d297 SHA-1: 405a4302fd37574914a26f49c542c6396e3be42e SHA-256: e82d0431570eb15a4256b5e31d806f5b775201989a3109382e89c05ab73e1d3c
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, many pointing to Shopify domains, but one critical link redirects to a known malicious domain (ttraff.ru). This suggests a link farm or redirector strategy to obscure the final malicious destination. The ML classifier also strongly indicated maliciousness. The primary attack pattern is likely to lure users into clicking malicious links, potentially 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=oscuros+lauren+kate+pdf In PDF document text
    • http://files.livestockmanagementsystems.co.uk/uploads/1/3/0/9/130969041/basogobetiz.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/1/0433/0687/7080/files/mutiga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8239/1451/files/83246894232.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6219/7400/files/57917807447.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2401/3722/files/mercury_sport_jet_120_manual_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1750/2869/files/munivitebovigebono.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3842/5766/files/60154561235.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1637/2892/files/ap_calculus_prep_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3998/0710/files/toraxigafibimuwarubokodeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/1946/4867/files/brahms_requiem_score.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8038/4674/files/ladiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4915/6757/files/tenibodosovaze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4745/0789/files/giwugenirevum.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 3

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_off00008db2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DB2 5240 bytes
SHA-256: 8d26de1cda8e5177661a789dacd807f8c0d5dcb1e02785b17ff1321d557f3570
font_01_sfnt_off00009f99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F99 10500 bytes
SHA-256: ce8418244e866d3789f85f1a174000d66ab029153c03a09d4bb9bc5cd492194b

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