Malicious PDF — malware analysis report

Static analysis result for SHA-256 205cebb1b8a0531a…

MALICIOUS

PDF

63.1 KB Created: 2020-12-05 19:40:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-19
MD5: 31ac1086ff7c52acad75fad19de6fa8b SHA-1: c392c6a6a31496854efe7ed5bab99bd6ed596007 SHA-256: 205cebb1b8a0531acb04a8431e5fe91fe0aee58c0f8f6b4d9c653dfd230fe3da
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffmen.ru/wb?keyword=area%20and%20volume%20of%203d%20shapes%20worksheet In PDF document text
    • https://s3.amazonaws.com/lolaritemukole/free_animated_picture_effects_templates_for_powerpoint.pdfIn PDF document text
    • https://s3.amazonaws.com/numegubowalonan/vukezim.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444853/normal_5fc6cd4486536.pdfIn PDF document text
    • https://s3.amazonaws.com/nujosuwemedadi/71661919679.pdfIn PDF document text
    • https://nejufolij.weebly.com/uploads/1/3/4/8/134883139/lomifuf-pojamusarazoka.pdfIn PDF document text
    • https://ditiwudo.weebly.com/uploads/1/3/1/4/131452947/c02036eab.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000baef.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000baef.bin)
    • https://static1.squarespace.com/static/5fc38541239b07229141ccc8/t/5fc842b4970db930d9ba83ba/1606959796904/bowling_green_alsace_christmas_market.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f76beadf-684f-470d-bec4-6e81d0342a78/49828318848.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff66d821-caf9-42bd-b83a-4e97b9d0b617/boramupejiruled.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/09a6d672-f97a-4934-a406-4b9e2915bdc5/35993651462.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6e46b61a-90d1-462e-847e-9762f972a415/pump_action_shotgun_rdr2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d3dbab27-6bce-46ba-a892-1b4b594df026/5663077525.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 extracted file (font_00_sfnt_off0000baef.bin)

Related samples 7

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_off0000baef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBAEF 5648 bytes
SHA-256: 6d8fc92e931b8883d75d188ef0bb31bf648654e994dfe8eb5494e6f341249ceb
font_01_sfnt_off0000ce13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE13 9912 bytes
SHA-256: c5ef1869a1a1672ef18381eb16232076cffc4a8e69fcc1be4bc17c2772a42e5c

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