Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d8afb60797054f6…

MALICIOUS

PDF

41.2 KB Created: 2020-08-09 13:37:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3bb05fb813ce4796f1bc20c0d49af982 SHA-1: 2ac38f1f7d877d11d992c9fa3168ce46a49a0b4f SHA-256: 4d8afb60797054f6f954174b582c5b10a90f6b80748a5cb98717eb8c096b7460
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a link farm and a redirector. The primary URL, https://ttraff.ru/pify?keyword=pdf+ausf%25C3%25BCllen+erstellen, is flagged as malicious, suggesting it's used to obscure the ultimate destination of the attack. The document body itself is heavily obfuscated and contains numerous URLs, many pointing to Shopify, likely as part of a link farm to improve search engine ranking for malicious content.

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=pdf+ausf%25C3%25BCllen+erstellen In PDF document text
    • http://files.lusherartsandinnovation.com/uploads/1/3/1/3/131379591/tasikuziva.pdfIn PDF document text
    • http://gujedem.toddspianoservice.com/uploads/1/3/1/1/131164250/zovilos-lajebapiro-forewusifiwofa.pdfIn PDF document text
    • http://files.brandonmoorecomposition.com/uploads/1/3/1/4/131438766/muxigem.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/1/0428/7689/5388/files/clinical_medicine_book_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2351/6323/files/math_in_the_modern_world_syllabus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2114/8061/files/cahills_vs_vespers_trust_no_one.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9795/6256/files/gukisiwibezedopepa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6917/6985/files/favaretu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1991/7720/files/fegigukipidunabeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5129/4619/files/49164084917.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9155/8551/files/fivejevavekadi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9302/4149/files/47829062279.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9243/4326/files/lavuduz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4090/6135/files/duvelofomufanibozifu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3001/8210/files/jg_bar_10.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_off00006203.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6203 5020 bytes
SHA-256: 6cdf5338ba3e7de7d6a504d3a764662b6b6f05c11ae6fd654e9d29828838059e
font_01_sfnt_off000072f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72F0 10928 bytes
SHA-256: ed1734f295633bbce0d8e8948fceb6becd3fc7efa82ba59c4a9d75e7e354a082

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