Malicious PDF — malware analysis report

Static analysis result for SHA-256 652586d98de2a63c…

MALICIOUS

PDF

52.0 KB Created: 2020-08-06 17:26:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a3658a3e20d69dc365f54c3d4ec10dab SHA-1: 7994a89953944ce9654e2c901a5bf55cf605fa0d SHA-256: 652586d98de2a63c69c7996cbcd7cbb1d620505bfdf1abeb1ef157c3f2b67832
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service that is known to host malicious content. The document body itself includes the primary malicious URL, suggesting an attempt to trick users into clicking through to a potentially harmful site. 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.cc/pify?keyword=ahmedabad+brts+bus+timetable+and+route+pdf In PDF document text
    • http://files.catoctincounseling.com/uploads/1/3/0/8/130813550/16d90b8564a.pdfIn PDF document text
    • http://files.thefrancisfuneralhome.com/uploads/1/3/0/7/130775023/wopuvewanovanil-pifotogape-rowofiretil-jalolaguwibeta.pdfIn PDF document text
    • http://files.stonehavenspallc.com/uploads/1/3/1/4/131437508/sikolesivirefakas.pdfIn PDF document text
    • http://files.legacyhorselogging.com/uploads/1/3/1/6/131636990/rakofidi-tuxujojaxeki.pdfIn PDF document text
    • http://zowedi.gregorystringfield.com/uploads/1/3/0/7/130776661/ba0163d9.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/1/0430/9726/0192/files/vofukaluvow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6836/6760/files/light_reflection_and_refraction_class_10_sample_papers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8094/9659/files/xexowalixi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9423/7589/files/pats_small_engine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3125/7510/files/midland_75_822_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5458/7288/files/25637302206.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3110/9540/files/fokitiwekuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9461/3924/files/44612095306.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fovurasavelibegesixaga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5463/5937/files/solving_quadratic_equations_gcse.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000780f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x780F 5412 bytes
SHA-256: a97116ec0193a57d16a5ec5eed4c34ef4abd805ab1507b71f55d2904efca84e7
font_01_sfnt_off00008a3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A3D 10324 bytes
SHA-256: 1f3239ec5d54e85d70b5685cb71f1ee09e9360c6fcacdeece02bb06200900183
font_02_sfnt_off0000adc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xADC8 16164 bytes
SHA-256: ebd2804bff382343e08f6a42dc45f69f4e794c08b23908ae60ba78ededae74b1

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