Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2b5e1536a1f93aa…

MALICIOUS

PDF

42.2 KB Created: 2020-08-18 13:48:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c453ae160b746e28d0f99a22293ee569 SHA-1: f4c62a2e2969751b18bf09602b5a45cd72e8b46c SHA-256: b2b5e1536a1f93aa5d3ee5de34533baab5dc67b2367d640c572cc0be11781585
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link to a known malicious redirector, ttraff.ru, disguised as a Suzuki motorcycle owner's manual. This indicates a phishing or social engineering attack. The document body, though heavily obfuscated, contains the same lure text and URLs. The ML classifier also strongly flagged this PDF as malicious.

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=suzuki+bandit+600+owners+manual+pdf In PDF document text
    • http://files.uwwatersheddynamics.com/uploads/1/3/0/9/130969322/1d1b1c4.pdfIn PDF document text
    • http://files.stnicholaselearning.ca/uploads/1/3/0/9/130969965/namogiwuxodikuvagit.pdfIn PDF document text
    • http://files.fairwaystorrington.com/uploads/1/3/2/6/132695451/2322674.pdfIn PDF document text
    • http://tofula.madelize.com/uploads/1/3/1/4/131437423/b68a95ea27b46.pdfIn PDF document text
    • http://fizimoto.hseforum.nyc/uploads/1/3/1/4/131437130/f2cc6a2131217.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/1/0430/9801/3857/files/42790922413.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5752/6437/files/admiralty_law.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8132/5987/files/guns_germs_and_steel_discussion_questions_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9306/5877/files/28744946449.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8893/7120/files/propiedades_del_apio.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5621/7750/files/advanced_renewable_energy_sources_tiwari_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/2708/3943/files/alta_badia_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2454/0071/files/vijudokukifulid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9078/8000/files/medilasirawebopilofu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0414/8381/files/48099499067.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1769/1559/files/fomelimiji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2236/9446/files/42096102205.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4403/5993/files/jefanenugurad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1943/6195/files/vita_di_galileo_brecht_gratis.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 4

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_off00005a7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A7D 5932 bytes
SHA-256: ce742fc7c932fb91e2f6c2417fac5054c11eb7b5fad55e0175e9408d791d8e26
font_01_sfnt_off00006ea7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EA7 14464 bytes
SHA-256: f05543a899b9ecd80721de518ee73403a7d074316a882835d2edcf268de1c35d

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