Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d62ec4f0b0435cf…

MALICIOUS

PDF

44.4 KB Created: 2020-08-02 09:17:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3d212b6df1cc0072eae1d1aeccb50007 SHA-1: 407a882b1f5d7c6d6cd8a6d9e69470ef8fabddbf SHA-256: 6d62ec4f0b0435cf377fcd0b744f0716856d5cd4d4162e64417e0dc889a471b1
194 Risk Score

Malware Insights

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

This PDF file contains numerous links, many pointing to a redirector service (ttraff.ru) which is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and a list of PDF files hosted on Shopify, suggesting a link farm or SEO poisoning tactic to drive traffic to malicious sites. The ML classifier strongly indicates maliciousness, and the presence of embedded URLs points towards a phishing or scam attempt.

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=harley+evo+engine In PDF document text
    • http://files.frederickdeeben.com/uploads/1/3/1/6/131606758/xokowasot.pdfIn PDF document text
    • http://files.hughespropertymaintenance.co.uk/uploads/1/3/1/4/131407635/712664.pdfIn PDF document text
    • http://files.mi-sheffield.com/uploads/1/3/1/6/131606368/niludavifek_rerodotite.pdfIn PDF document text
    • http://files.susandupontbaptistaartist.com/uploads/1/3/0/8/130874598/jikijiluxakaz.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/1/0427/4274/3207/files/46316198959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0997/3147/files/dewupal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6148/6503/files/katafujuvevofulofekenor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3436/9438/files/fluval_406_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0476/4068/files/11316842479.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3975/8235/files/64431212334.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8380/9443/files/state_of_new_jersey_unclaimed_property.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/35117459625.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/54313135065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3947/3314/files/fukokarebudojozafogufi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3397/7255/files/42326263401.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 8

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_off000070de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70DE 4800 bytes
SHA-256: 3f080ad12097d4ac08431af42dad997183cd184370ea7407e7f7a2ac614fd99b
font_01_sfnt_off0000814f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x814F 10420 bytes
SHA-256: 8a41ca36f89563674ff41b10ef415c865718d0180535686d5cb6b3e276ace5f1

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