Malicious PDF — malware analysis report

Static analysis result for SHA-256 db652d6d0579c757…

MALICIOUS

PDF

53.0 KB Created: 2020-07-29 00:42:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eaa928a2dc60a1fb18f92dc9f0f4bb4e SHA-1: 3562e3b712d9df0cdefc122ec09f1d363b1655a3 SHA-256: db652d6d0579c757ce925912351ab423adca3c59394a7acd6cc65cd36cd77767
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Additionally, it exhibits a PDF link farm behavior, with numerous links to Shopify-hosted PDFs, suggesting an attempt to obscure the final malicious destination. The ML classifier also strongly flagged this PDF as malicious. The primary attack pattern involves luring users through a deceptive link.

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=biographies+of+famous+personalities+pdf In PDF document text
    • http://files.allstaraussies.org/uploads/1/3/2/6/132695629/rexizusewode.pdfIn PDF document text
    • http://files.johnnybeerling.co.uk/uploads/1/3/0/8/130874544/nawuxuweti.pdfIn PDF document text
    • http://files.greenfieldse.org/uploads/1/3/0/7/130738924/ditulonomig.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/1/0433/1431/5422/files/51967315033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6086/2882/files/79577219223.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6785/0390/files/xufuvademukemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2630/0577/files/50275292177.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1206/2364/files/jigekosuditutogepafew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85755015361.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4926/3004/files/mubododonobimekugivo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5165/6102/files/muxip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5290/0250/files/tupidepitipojike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6381/3020/files/93604758284.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
🗂 Part of campaign: rykersonforkittery.org 6 samples

Related samples 4

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_off00008b1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B1A 5384 bytes
SHA-256: 8566d8a4b4eb5b3693a1a937b8aee90769b84d6b5d7c2735a74fd2a7814e4f35
font_01_sfnt_off00009d42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D42 13052 bytes
SHA-256: aa8cc72de25191eccf872a7a9c839e066ee64d023bc88de198d5d005ef6bcf52

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