Malicious PDF — malware analysis report

Static analysis result for SHA-256 67f8f9202cd0f345…

MALICIOUS

PDF

41.4 KB Created: 2020-08-24 00:52:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4b628b097256cd3e4880ca01019aaad9 SHA-1: 8ac0b25cf147e0e7f9886f5b4da9569d7517f861 SHA-256: 67f8f9202cd0f3452d6b25d76047e3affdcfba1f6cca1fdbcef6dd98b5627651
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) that is flagged as malicious. The document body, though heavily obfuscated, contains text related to 'auk\[...]batai ant platformos' and includes the malicious redirector URL, suggesting a phishing or scam lure. The presence of many links to external PDFs, including benign ones on Shopify, indicates a link farm strategy to obscure the malicious destination. No scripts were extracted from this sample.

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=auk%25C5%25A1takulniai+batai+ant+platformos In PDF document text
    • http://razisuje.appletreecafehawaii.com/uploads/1/3/2/6/132681361/faleju.pdfIn PDF document text
    • http://files.naturalstrandsofbeauty.co.uk/uploads/1/3/1/3/131382595/guzokosebobo.pdfIn PDF document text
    • http://files.lbconline.org/uploads/1/3/1/4/131406453/67f3f73b047.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/1/0435/0800/7072/files/7248817467.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6259/9585/files/79839243387.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5174/5442/files/57163865016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1401/1555/files/27848927032.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3006/0955/files/bulletin_de_paie_explication_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1368/4891/files/zukesotawon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0378/1015/files/80249599082.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4975/4519/files/63979933001.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1997/6350/files/revelian_cognitive_ability_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4183/9511/files/36031827872.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5664/4774/files/aerodynamics_of_flight.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 5

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_off00005fca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FCA 5448 bytes
SHA-256: 7ffddd68c8664ee82c49871b9ec7652049aeedae86cf748ea47ffc1b6996a84f
font_01_sfnt_off000071bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71BD 12212 bytes
SHA-256: 28c28a15c9fb5ebd29bd25e0e4332d8f0703ae4c0b0f3630773a8b8aa95e6dcf

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