Malicious PDF — malware analysis report

Static analysis result for SHA-256 97ebcade482f40b3…

MALICIOUS

PDF

42.0 KB Created: 2020-08-10 04:48:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 642c1e914faffdd5ae9f9b9dc81fc2f5 SHA-1: ab519bc03484a2f29361d4a2c9ef4cde4278b848 SHA-256: 97ebcade482f40b3004be5ccbd9fe372eefe89f0316db9408b182369ca9bdb05
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, a technique commonly used for SEO poisoning or to redirect users to malicious sites. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=samuele+bacchiocchi+from+sabbath+to+sunday+pdf'. The document body, though heavily obfuscated, also contains this URL, suggesting the primary purpose is to lure users to this malicious redirector.

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=samuele+bacchiocchi+from+sabbath+to+sunday+pdf In PDF document text
    • http://files.c2lconference.com/uploads/1/3/1/4/131453897/gugadelug_gilodajol.pdfIn PDF document text
    • http://magevu.loveyouridlife.com/uploads/1/3/0/7/130775403/30553e655.pdfIn PDF document text
    • http://files.ylrart.com/uploads/1/3/0/9/130969628/e9bfa4.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/1/0433/2411/3049/files/tuvawumejusubapad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3005/9927/files/74953785205.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8935/3117/files/cg_b._ed_syllabus_2020_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6821/9799/files/xapegufodefox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0510/0711/files/96714748765.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4628/1121/files/potafanoki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/4245/0081/files/zixibeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3276/3801/files/55852591956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7945/0272/files/prioritized_experience_replay.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5318/7221/files/bopefatemaxodod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3577/7445/files/reasons_of_stress.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5924/7264/files/luxid.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_off0000645f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x645F 5740 bytes
SHA-256: bbfb171c6641eb81ae4792b70175b3c3180c7db61844dfdd1ad2243590ae8a1e
font_01_sfnt_off000077c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77C6 10308 bytes
SHA-256: d0498db87d76c88dfe5f0a9644f99486c859f8f17bb088e7e95c9c49b7d1f6e9

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