Malicious PDF — malware analysis report

Static analysis result for SHA-256 36da2c8e81bcbb95…

MALICIOUS

PDF

46.1 KB Created: 2020-08-28 14:44:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5aa3fad0d7216d203ab70e0fcff2b5e2 SHA-1: a7da9dafa36daa33171c8a0818c49edd1ac71d66 SHA-256: 36da2c8e81bcbb95340d62970282ff00555c1236528425954646440c3c3ed72b
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=in%25C5%259Faat+sim+indir'. Additionally, it exhibits characteristics of a PDF SEO link farm, embedding numerous external links, many hosted on shopify.com. The primary intent appears to be directing users to potentially malicious or spam content through a large number of outbound links.

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=in%25C5%259Faat+sim+indir In PDF document text
    • http://files.parentsoftransgenderkids.org/uploads/1/3/0/8/130814553/zabilix_riwigas_wovetok.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/1/0431/7390/4545/files/kendo_scheduler_custom_event_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6728/4379/files/broiler_breeders.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4335/6825/files/pubejozexiwotidixuxojib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7580/6119/files/vurulene.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2439/2087/files/tijudumilexuvelimoteti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1267/5990/files/52339768650.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9262/1978/files/western_movies_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7341/3028/files/josuge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7643/5621/files/20600227644.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005daa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DAA 5124 bytes
SHA-256: 05ff8ed3c9dd16d4f75a0d366a43546b05fce8ae151c2871b744eff91cdf8dd9
font_01_sfnt_off00006e75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E75 12876 bytes
SHA-256: 52fa2e79a84089a7026d9272ebdc88ff0fd5c6cd4d73e53182b2cae91ea34b48
font_02_sfnt_off000095bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95BC 16060 bytes
SHA-256: 660d05b38fea380e8cc13f4a5a7db764e9bd2a20a73145a73af50c118749f22b

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