Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2340ae4d01df4c9…

MALICIOUS

PDF

37.3 KB Created: 2020-08-01 03:32:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3e0ed176f7f1da3b6d65ab41ff232933 SHA-1: 4680ef06f8f4f24fa6ef596a33e7430bf2947db6 SHA-256: f2340ae4d01df4c92c6abb9a2bb2cbe934a908f9917664f5b4badb636d036175
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the critical heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The document body, though obfuscated, contains the URL "https://ttraff.ru/pify?keyword=clorox+bleach+msds", indicating a lure to potentially malicious content. The presence of numerous other PDF links suggests a broad distribution or SEO poisoning tactic.

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=clorox+bleach+msds In PDF document text
    • http://files.littlehartspreschool.com/uploads/1/3/1/3/131379540/7136773.pdfIn PDF document text
    • http://files.lightspunpath.com/uploads/1/3/1/0/131070674/28ac8bcdcc2.pdfIn PDF document text
    • http://files.thenealens.com/uploads/1/3/1/4/131483440/bc8a49bb1d963.pdfIn PDF document text
    • http://files.maritzavives.com/uploads/1/3/2/8/132815346/zotowelew_lotavapibo_zevubebesoden_sodagufeje.pdfIn PDF document text
    • http://files.imaf-americas.org/uploads/1/3/0/8/130874163/xazexaki-pimusugada-xolubuzijaf.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/1/0433/7880/2846/files/guferilifukiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4241/4492/files/home_depot_christmas_tree_prices.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6150/1334/files/nudevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4093/1991/files/bipidag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0790/9794/files/66389159140.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9229/6359/files/54050676084.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8209/6541/files/cadillac_srx_service_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2873/2314/files/34108451275.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7368/3112/files/11174407996.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_off000054a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54A1 5292 bytes
SHA-256: 388a4fe0e169bc6fc3339fde0b916ef6c07c63bd78999790b8e20d85e9f7e54a
font_01_sfnt_off0000666e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x666E 10092 bytes
SHA-256: bfb78477cc29b96f190541cfdafc33b961b85f537ccba79498ce052e6fbbd788

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