Malicious PDF — malware analysis report

Static analysis result for SHA-256 0564f1384f1a6e50…

MALICIOUS

PDF

41.9 KB Created: 2020-08-09 21:47:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ecf1ace6d91ca9e3cbca35f042c457fc SHA-1: da28a074b99e86515ed2ff0831abd35806f0b3ed SHA-256: 0564f1384f1a6e5036a004ad6f84a5fa585cbee2ecd6cf266889a163dada24ee
194 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, many pointing to a redirector service at 'ttraff.ru', suggesting a phishing or malware distribution campaign. The heuristic firings indicate the PDF is designed as a link farm, likely to lure users to malicious content or to generate traffic for SEO manipulation. While no scripts were directly extracted, the embedded links and the nature of the PDF structure strongly suggest an intent to redirect users to potentially harmful sites.

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=test+bulats+anglais+pdf In PDF document text
    • http://files.huronmarketing.com/uploads/1/3/0/9/130969645/wigaras.pdfIn PDF document text
    • http://xexux.ishootuk.com/uploads/1/3/2/6/132682883/2220323.pdfIn PDF document text
    • http://files.signaturegames.eu/uploads/1/3/1/4/131409709/ziguku_tubufaliz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8782/1984/files/39786854544.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9140/9561/files/teddy_pendergrass_torrents.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4923/8179/files/46152657830.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8320/2711/files/83236965889.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0778/2557/files/mastering_physics_answers_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/4160/8100/files/industrial_wastewater_treatment_methods.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/97897646990.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7117/5832/files/xixikagizuboriwanifil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8036/6745/files/how_to_move_pages_in_adobe_acrobat_pro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3953/8851/files/30955856735.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5129/4619/files/9991302640.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5009/9107/files/16867794137.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3152/6557/files/44626595282.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000597b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x597B 4976 bytes
SHA-256: a80a0ae8a386c32f56169d5a737805a44361b6818dfd6849d8ef82ad7c264c2a
font_01_sfnt_off00006a6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A6D 10088 bytes
SHA-256: b535145f4187f5937e644221ad594a6cb87e9946851287203a82399272cb1fab
font_02_sfnt_off00008cee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CEE 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f