Malicious PDF — malware analysis report

Static analysis result for SHA-256 00375d0053e0c467…

MALICIOUS

PDF

60.1 KB Created: 2020-08-09 14:10:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a63394cf1cc32d543b1366252527d623 SHA-1: df021e3d9917d37cebe2a7a621d287897e8580ec SHA-256: 00375d0053e0c46788f78aa037d3be319118fae5e380a3df279679173c565492
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous embedded links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, also contains URLs that are part of a link farm, suggesting an attempt to manipulate search engine results or distribute malicious content. The ML classifier strongly indicated maliciousness, supporting the presence of these suspicious links.

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=analyse+physico+chimique+du+yaourt+pdf In PDF document text
    • http://files.jasminkwan.com/uploads/1/3/1/4/131453248/kubomerebamel.pdfIn PDF document text
    • http://files.themassageplaceop.com/uploads/1/3/0/7/130739802/japujofobev.pdfIn PDF document text
    • http://files.charlottecountyoutreach.com/uploads/1/3/1/6/131636825/5525766.pdfIn PDF document text
    • http://files.callinidiore.com/uploads/1/3/0/8/130813643/220579.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/1/0432/5523/4710/files/fagotilakaxomejewumed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3546/7669/files/lixijizovewow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8878/2236/files/anthropological_approach_to_the_study_of_religion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1548/8163/files/stomach_exercises_at_home.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2353/1175/files/pearson_chemistry_11_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1310/2998/files/wukakamikodoxoren.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1392/3228/files/pradhan_mantri_awas_yojana_gujarat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0876/0735/files/essentials_of_biophysics_p_narayanan_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6516/1366/files/45532327995.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0706/5757/files/43079388946.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_off0000a089.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA089 5612 bytes
SHA-256: 0234d79fa8326b636cb2d029ad9c8a9444bece431cd9814e0e6bcae30911864c
font_01_sfnt_off0000b37d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB37D 15640 bytes
SHA-256: 7e365ab72b01927411df6c46ac85207c71541480698593dcd74d028c21bb1358

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