Malicious PDF — malware analysis report

Static analysis result for SHA-256 09796a77132614a5…

MALICIOUS

PDF

70.0 KB Created: 2020-08-09 16:49:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 008846d77bf43e6f112988ea29fc9fa3 SHA-1: a61d1526473b97da881676f42baa8b3ed417d9df SHA-256: 09796a77132614a577f28ae6f63e4c8915003cfd10bafc3360b5740c6d8c2c50
194 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, many of which point to external PDF files hosted on various domains, including a known malicious redirector at `https://ttraff.ru/pify?keyword=bmw+118i+technische+daten+2020+pdf`. This suggests a link farm or SEO poisoning tactic to distribute further malicious content. The ML classifier also strongly indicated maliciousness.

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=bmw+118i+technische+daten+2020+pdf In PDF document text
    • http://files.sharonceslak.com/uploads/1/3/1/4/131483307/xifepamudolebudi.pdfIn PDF document text
    • http://files.soxoflove.org/uploads/1/3/0/8/130814855/bufidat-xodoja-xepen.pdfIn PDF document text
    • http://files.atlanticirishfest.com/uploads/1/3/0/7/130776757/sotipaki_wulokamexifak_seroxux.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/1/0433/3800/6687/files/71796498652.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6118/2617/files/vezusejufipubovuwok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8180/9558/files/ielts_vocabulary_list_for_listening.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2134/3647/files/xodukadenakerufosiwuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0595/8565/files/ginurowodefovipigoxewopez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xigazisamakolomomabixefox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0754/1401/files/lurudewapanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48695811849.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0139/2801/files/english_test_for_job_interview.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_off0000c626.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC626 5928 bytes
SHA-256: b27345c820ec125942e599807676c197f8ed6c23e6287f7d5d4d8a43a02c93c4
font_01_sfnt_off0000da4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA4D 16248 bytes
SHA-256: 654df73a06d1c196d6d5c61f80eb7774b977f011edb47a3c610632c8bafa52db

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