Malicious PDF — malware analysis report

Static analysis result for SHA-256 6beb81f91b78e695…

MALICIOUS

PDF

41.6 KB Created: 2020-08-01 17:11:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 078c8741adf0993c2821c1fd788f577c SHA-1: 2277e862fe00db420b6ee2d210e1fba4c3431d9b SHA-256: 6beb81f91b78e6956c734b4cc37ec186be6b4aa9481adbf08ae1bac643d09f5a
194 Risk Score

Malware Insights

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

The PDF file contains embedded links that redirect to a known malicious infrastructure, specifically `https://ttraff.ru/pify?keyword=kfc+printable+coupons+2016`. This URL is identified as a malicious redirector and part of an SEO link farm, suggesting a phishing or scam attempt. The document body, though heavily obfuscated, contains references to 'Kfc printable coupons 2016' and the malicious URL, reinforcing the lure. The ML classifier also strongly flagged this PDF as malicious.

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=kfc+printable+coupons+2016 In PDF document text
    • http://files.fingerhutpastries.com/uploads/1/3/0/8/130873708/ff00eb.pdfIn PDF document text
    • http://files.bondkitchens.co.uk/uploads/1/3/1/3/131381031/784614.pdfIn PDF document text
    • http://files.sidegiglikeaboss.com/uploads/1/3/2/7/132741162/fidubuf.pdfIn PDF document text
    • http://files.jenniferjoseph.org/uploads/1/3/1/8/131856852/relutelofapalejuzoz.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/1/0429/5340/8675/files/xarizonalitu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xuwuvedalolavotidexetugom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8225/2442/files/44970946335.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7180/7391/files/manavikofapifasamajoxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3656/5923/files/jezizoteloratutapeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3020/8924/files/18140903628.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7581/0966/files/rigivage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6350/1222/files/okuma_lathe_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/52657742202.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/40086068295.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3874/4476/files/92948602289.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_off000064cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64CF 5600 bytes
SHA-256: 2f5b109f5d8a5e8dfd8700ad88c60b693535621c04e14c3145cecc0bfad0ce3e
font_01_sfnt_off000077f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77F0 9852 bytes
SHA-256: 5b08112322284ecba2f86dce85e27000480e5aa5c68c1ee4ea5d78dd287d9a50

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