Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a98fd69c3808fd0…

MALICIOUS

PDF

40.6 KB Created: 2020-08-22 08:03:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2ca4e4140e81ed826e56499bb0cd3db6 SHA-1: 88f12a02323b5929b26c820db654400fc83dbb1c SHA-256: 6a98fd69c3808fd08c12f0a5844b905742aaeaec056ebfa2949e1eeaf1984bf0
194 Risk Score

Malware Insights

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

This PDF document contains multiple embedded links, including one that redirects to a malicious domain, ttraff.ru. The document body, though heavily obfuscated, appears to contain text related to a 'dictionary definition worksheet', suggesting a lure to trick users into clicking the malicious link. The presence of numerous links, many pointing to benign Shopify URLs, indicates a link farm strategy to obscure the malicious redirector.

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=dictionary+definition+worksheet+ks2 In PDF document text
    • http://ruropugib.eliadeleon.com/uploads/1/3/1/0/131070827/9688140.pdfIn PDF document text
    • http://files.mail.byboukje.nl/uploads/1/3/0/7/130775677/f2e343fd04b4.pdfIn PDF document text
    • http://mobokipi.samanthadelgarno.com/uploads/1/3/2/8/132814930/xadilefovixonodeba.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/1/0434/3041/2454/files/voxubapuxizinarixigexap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8558/4797/files/cyrillic_on_android_tablet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6780/8667/files/58603195479.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8962/3208/files/99642111045.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9328/7331/files/sexomagupatadeba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9689/9733/files/tn_bill_of_sale_for_car.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7954/1671/files/tivipidakurilezo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/94192334972.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5544/8213/files/cenas_saludables_para_bajar_de_peso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1223/5159/files/sexafi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2556/2775/files/dasetemobolazos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1008/8357/files/79201336563.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5847/1846/files/fudafemuzumafivulemunafok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4461/5830/files/32751481967.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 6

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_off00006046.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6046 5464 bytes
SHA-256: 9db5c10161cea1715f0e0f2bd1904ef4507f3ba7d4a7d6e50387715dbdbf381e
font_01_sfnt_off000072f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72F5 10208 bytes
SHA-256: 533a33c260746db457696c0dba96e2b09a698711eb9183012ea74e864b7f6e40

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