Malicious PDF — malware analysis report

Static analysis result for SHA-256 258f59e56d853b2c…

MALICIOUS

PDF

48.2 KB Created: 2020-10-01 08:12:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-12
MD5: 2f0f5c7e9ee771a33d06b6010416daef SHA-1: 87d263ec0d577e4be3dc9a93c186184b320c0775 SHA-256: 258f59e56d853b2c06d01320f3a6540fac952947eb3c5a9c2f1a1bbd3976b194
194 Risk Score

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://ggtraff.ru/strik?keyword=surah+al+waqiah+complete+pdf In PDF document text
    • http://files.mission-ready.org/uploads/1/3/1/3/131384113/menujigajate.pdfIn PDF document text
    • http://files.leightonbuzzardpropertyblog.com/uploads/1/3/1/3/131398142/zolim.pdfIn PDF document text
    • http://files.behindyourdestination.com/uploads/1/3/0/8/130813740/6ae3dc.pdfIn PDF document text
    • http://files.purezaoliveira.com/uploads/1/3/2/3/132302982/dadikuritezo.pdfIn PDF document text
    • https://site-1037835.mozfiles.com/files/1037835/menodugaxafino.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006092.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006092.bin)
    • https://cdn.shopify.com/s/files/1/0437/1569/0650/files/invitation_templates_for_word_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3552/5282/files/14737745885.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7690/2309/files/83621333146.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e93e0ef-113e-4e34-a45b-26d832b7ae85/kukovizatofitefusu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c87d520-27f4-4135-9ba0-3e10ff810728/sojejala.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f1cae1b5-9d28-4699-832e-1bf20a75cc60/63632365257.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c80e4402-9219-4fe8-8766-f32624496f2c/xuzujos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef83437a-1a39-453e-98cd-9f4c470ad644/43383662366.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://dejavu.sourceforge.netIn extracted file (stream_005_off00009ac9.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (stream_005_off00009ac9.bin)
    • http://scripts.sil.org/OFLIn extracted file (font_00_sfnt_off00006092.bin)

Related samples 5

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
stream_005_off00009ac9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x9AC9 17148 bytes
SHA-256: 0081b580974a443fd96537a0fa40100dc102dafdc6182f9d87f9c42ed99e04b2
font_00_sfnt_off00006092.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6092 5536 bytes
SHA-256: 760f7ecb2572207df2801518e06958aa064bd8d44cca8ae426ce9ce4528fcb87
font_01_sfnt_off00007351.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7351 12216 bytes
SHA-256: 958606760239f3f66a68f10bdc3e07aae7d13d8840a8ce8fc71904fef6f41bfd

Open this report in the interactive analyzer, or submit your own file for analysis.