Malicious PDF — malware analysis report

Static analysis result for SHA-256 f678c9daf52ea5d4…

MALICIOUS

PDF

36.8 KB Created: 2020-08-03 10:54:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 862e8e47f272bbe4488126746992bdad SHA-1: c298721531dafd25aec84031eb6fd9df6d517ffc SHA-256: f678c9daf52ea5d47853f8025a5e62fbdacda442f24ee5ad5d31d50f1df452e6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-Override T1059.001 PowerShell

The PDF contains a large number of embedded links, identified as a link farm, pointing to a malicious redirector. The primary malicious URL is https://ttraff.ru/pify?keyword=ls+dyna+manual, which likely serves as a gateway to further malicious content. The document body, though heavily obfuscated, contains references to this URL and other PDF files hosted on benign-looking domains, suggesting a social engineering lure to drive traffic to malicious infrastructure.

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=ls+dyna+manual In PDF document text
    • http://files.ijcmsr.com/uploads/1/3/0/7/130739212/vatipe.pdfIn PDF document text
    • http://files.robicellis.com/uploads/1/3/1/8/131857717/ab03d8c0adf.pdfIn PDF document text
    • http://files.innerevolutionproducts.com/uploads/1/3/1/3/131379361/8056337.pdfIn PDF document text
    • http://files.brianpatrickgodfrey.com/uploads/1/3/0/7/130775813/d6fefd8ba138.pdfIn PDF document text
    • http://files.addictionmadison.com/uploads/1/3/1/4/131453022/sikofit.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/1/0430/8510/3258/files/zekuxevetukufikuwerutuguf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7028/3166/files/xogebonupasexavotutekuzus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6119/8500/files/35251280798.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5458/7288/files/vetugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2556/2791/files/29951753841.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7926/2623/files/96976153000.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3444/1890/files/47359075383.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5963/4591/files/pigok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6689/2191/files/41265782798.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8774/9529/files/xagufile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9017/3349/files/zazed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0333/1231/files/10773884426.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2412/0984/files/93076305771.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 5

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_off000051ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51AB 4920 bytes
SHA-256: a74fe56b2b7eaa59d425d04e901d39bb56a1d015035d4d51c512e25256e32e8f
font_01_sfnt_off00006262.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6262 10192 bytes
SHA-256: 7400707f7a34037accb16c3bf4d3e7f6c85615e1d1acbc10123353ecca1f046e

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