Malicious PDF — malware analysis report

Static analysis result for SHA-256 08dec6c52e1b1299…

MALICIOUS

PDF

121.5 KB Created: 2021-03-16 23:12:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 13a0b346445730b13846966cf5736dfb SHA-1: 3043ab4be1b215e8957186b61bda7d8ef0d6f16e SHA-256: 08dec6c52e1b1299cfee61851cd01e2f65eda73ee4486ae14457e76a4d2bae70
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document is identified as malicious due to its structure, which includes a large number of external links designed to create an SEO link farm. The primary lure appears to be a free download of a religious text, directing users to a redirector URL. The document's content and the heuristics strongly suggest a phishing or malware distribution scheme.

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
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://zajinet.ru/strik?utm_term=santa+biblia+reina+valera+1909+gratis PDF link annotation
    • http://organize.shop/46706966537wy45m.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423154/normal_600183b6c6682.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484156/normal_5fd02c5ee84b2.pdfIn PDF document text
    • http://mgacessoria.online/fagibujanajavelegqkzbq.pdfIn PDF document text
    • http://bridgecommerce.com/nanukisu2bozy.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446915/normal_5fda3845bbbe0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371240/normal_5ff95e9733cfe.pdfIn PDF document text
    • http://topchambre.xyz/whats_the_best_order_to_watch_marvel_filmsunxxb.pdfIn PDF document text
    • http://boxberry-24.cc/shivprasad_koirala_.net_interview_questions5m80e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405662/normal_60012aa0d379d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491670/normal_5fd2e35150217.pdfIn PDF document text
    • http://sadovik.me/2002_buick_century_engine_size8x95v.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417329/normal_5ff9c2969692a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456982/normal_5fda238e31393.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411708/normal_5ffc58906e4a3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459929/normal_604bcbe95aaed.pdfIn PDF document text
    • http://help-bluebadgecenter.com/92592646544ejve2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://6739ca04-605d-4ff4-b4c9-4e5bd75a7819.filesusr.com/ugd/031dda_cf5849516e9a450780877bb38bde6878.pdf?index=trueIn PDF document text
    • https://e4da1597-3bb3-488b-9226-7c2c9e06e9ce.filesusr.com/ugd/db5d73_e006a7b9ea914bc8918d7735e67cc174.pdf?index=trueIn PDF document text
    • https://0d3c4653-ec4b-4b04-9c20-59e348ba858e.filesusr.com/ugd/62200f_fd04df08095e43d4932c459531323453.pdf?index=trueIn 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_off00019d37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19D37 5508 bytes
SHA-256: 27c6c7fa33997db71662d374a9c11a8551be7389a82edbecf4d8519680ac7d1f
font_01_sfnt_off0001b006.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B006 12124 bytes
SHA-256: 0383135251e5ecf3b4ef5f4354e1e107de32073f3c14de56fa0e872059e88ebe