Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b3370a2369da1a5…

MALICIOUS

PDF

40.8 KB Created: 2020-08-15 03:20:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 774c71fa08a9cab03a5f3c70b1d7e87e SHA-1: fab21ff3c16370d3256e3f281ef8b814bf57e24c SHA-256: 0b3370a2369da1a548d595f669a316e131ba7c6a4dc9f13869bc3207ef96cf49
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one to a known malicious redirector at 'https://ttraff.ru/pify?keyword=how+to+report+intraclass+correlation+coefficient+apa'. This redirector is likely used to obscure the final destination and potentially deliver a malicious payload or lead to a phishing page. The document body, though heavily obfuscated, contains the same redirector URL and references to academic topics, suggesting a lure for SEO-based attacks.

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=how+to+report+intraclass+correlation+coefficient+apa In PDF document text
    • http://files.mrsudbury.com/uploads/1/3/1/4/131453539/422f68238a2d0.pdfIn PDF document text
    • http://kuxob.nineteen09gifts.com/uploads/1/3/1/0/131070487/goxolazonojawirelap.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/1/0428/9314/8313/files/47199347651.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9745/6801/files/75756512652.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6942/3269/files/zedajonurekere.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6594/9862/files/bumunebuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0445/2246/files/domexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0379/7916/files/41286954172.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3463/9522/files/pabewetujiwodu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1692/0996/files/xagiluxoxotegatolinaledop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3056/9382/files/8888907853.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/0842/9977/files/properties_of_alkyl_halides.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_off000061b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61B2 5064 bytes
SHA-256: e6bfb9c9084d1a433636bb9467393291823b984e3b309187d68ab8ce69b16f67
font_01_sfnt_off00007304.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7304 10484 bytes
SHA-256: 2ee47788dab5fc0c62801d104562573b933e18744c5ced6b7e6b5e0bdc221e29

Open this report in the interactive analyzer, or submit your own file for analysis.