Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d3e5effe0a5aa34…

MALICIOUS

PDF

67.2 KB Created: 2020-11-11 15:51:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-14
MD5: d85b9e602eeb03dc7a68f65fe91b5382 SHA-1: 04098c681d09b6c56f11fe2e497f87bf6811a2e7 SHA-256: 0d3e5effe0a5aa3492b25e49cfd1cfceb1e2fce2968f1e57b25c7f5ccde1d27b
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://traffking.ru/wb?keyword=half%20life%20answer%20key In PDF document text
    • https://cdn-cms.f-static.net/uploads/4380078/normal_5f91446af2189.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404524/normal_5f95ce7126d15.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425487/normal_5fa2b7e4ee922.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365653/normal_5f880c6695a28.pdfIn PDF document text
    • https://gipegilut.weebly.com/uploads/1/3/4/6/134699389/verije.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454045/normal_5fab924e2a954.pdfIn PDF document text
    • https://lisubavami.weebly.com/uploads/1/3/4/3/134331762/8a2e42c34.pdfIn PDF document text
    • https://numomepezudoti.weebly.com/uploads/1/3/4/3/134320197/4973718.pdfIn PDF document text
    • https://patodenum.weebly.com/uploads/1/3/4/6/134657208/9237667.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381102/normal_5f909a5fdbb7f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374956/normal_5f96342e897ea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422658/normal_5f9a6bb16fd5b.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/58d15f0c-504f-4012-8ebc-eb5ec159a4d9/8151603699.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_off0000cbfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBFE 4980 bytes
SHA-256: a4152cacdfbc76db98a8cbbfbfb84592d5926f13b42da9bff4997be6812b93a8
font_01_sfnt_off0000dd15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD15 10488 bytes
SHA-256: c4919026d3be2f38bf2628c83ae4b92aa44d738288715bed43a50e616e0fb10a

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