Malicious PDF — malware analysis report

Static analysis result for SHA-256 782d7c75c6ea649b…

MALICIOUS

PDF

87.3 KB Created: 2020-12-30 05:47:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-16
MD5: e584ac292dda597b9a5fc2aef17fe3e0 SHA-1: 8a710605b4f574091d85ee0d6dee38d06fe7ce14 SHA-256: 782d7c75c6ea649be873ca520d4ce0bdabda679ce1bf29a6f2a8b0a0bc0c9ab1
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/123?utm_term=3+follicles+iui+success+rate In PDF document text
    • https://sijetuso.weebly.com/uploads/1/3/4/4/134499475/6217917.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477651/normal_5fc4add520f52.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388060/normal_5fcb14ac698b8.pdfIn PDF document text
    • https://kefelewupu.weebly.com/uploads/1/3/4/7/134711224/5045781.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459174/normal_5fd654e568c4a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379964/normal_5fc0efcfe8ea6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413125/normal_5fdf0f99edb5f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369766/normal_5fe4c96d08314.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/412821ac-392f-428e-b43a-67092404f097/cbt_formulation_example.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5707e931-0f08-4f16-a277-abad05b754b6/gaming_wallpapers_for_laptop_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b50fb50-ee4e-4126-8b05-a3dcac0071a2/espaol_1_secundaria_contestado.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b650f57d-e7e2-4e9c-a20e-1adee2207c25/logan_square_shopping_center_new_hop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8576c137-7dc8-4a79-a7e7-7b6981411935/13_ghosts_all_ghosts.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc622e16-b968-4990-9c18-48a235b7cd2f/10762910538.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11f61f70-6300-4b4e-b9ba-8c9298fc8e67/punyalan_agarbathis_2.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000118bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118BD 4944 bytes
SHA-256: dd52e26dc30e97a3cf879b1efdd9afb2372e7b278e7244baa1ea412b1562167e
font_01_sfnt_off0001299a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1299A 11656 bytes
SHA-256: 414383db505e1f43206e8c4f6570a429bce4792f6c5740f23c26046b67279693

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