Malicious PDF — malware analysis report

Static analysis result for SHA-256 11af672f028416e3…

MALICIOUS

PDF

43.4 KB Created: 2020-08-06 00:33:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 10b299b0d4ff9a1c6320ad570acb928d SHA-1: 6d7a2f70f11b3c28ade4c7224f860e54deabcafd SHA-256: 11af672f028416e32ff5826f55d49ac559b3627f32cfcff6311724a77f0706e9
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to numerous other PDF files, masquerading as a bearing catalogue. The primary redirector URL, https://ttraff.cc/pify?keyword=nsk+roller+bearing+catalogue+pdf, is flagged as malicious. This suggests a phishing or malware distribution scheme leveraging SEO tactics to attract victims.

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.cc/pify?keyword=nsk+roller+bearing+catalogue+pdf In PDF document text
    • http://files.sharmilainc.com/uploads/1/3/0/8/130814669/7134599.pdfIn PDF document text
    • http://xukoxipol.dancingmindfulness.com/uploads/1/3/1/4/131453674/6513684.pdfIn PDF document text
    • http://files.walkerfarmshoney.com/uploads/1/3/0/8/130874254/bejiluji-jabaw.pdfIn PDF document text
    • http://files.promptrealty.com.au/uploads/1/3/0/7/130740073/7a72a13d5c6b16.pdfIn PDF document text
    • http://files.gvdrama.org/uploads/1/3/1/3/131398219/tezikisa.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/1/0437/8463/4530/files/webukaxixutariwosuti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9648/2727/files/lurokuvo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7532/9441/files/canal_5_m3u8.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5462/0059/files/11591473895.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8828/9694/files/26574612276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0645/2127/files/83195799746.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2987/0245/files/ielts_writing_task_1_academic_band_9_vocabulary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3415/7991/files/gimotagu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3217/2951/files/povuxilisusax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7596/8928/files/zozum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7208/6423/files/nubeluvivegamasizelavuj.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 3

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_off00006b25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B25 5496 bytes
SHA-256: 0374a6bcfd221a68c3ff8efdaecaed46fb508d5daf9c21a1a8fc290ff89d9f68
font_01_sfnt_off00007deb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DEB 10140 bytes
SHA-256: 41f55d1cf2c1a65468abcd03b46ba27ed0f34ed2d5a2eb2dbef042a2759d2a90

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