Malicious PDF — malware analysis report

Static analysis result for SHA-256 74f20c3efc2cae83…

MALICIOUS

PDF

79.2 KB Created: 2021-01-22 01:42:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 2a5fc8a1533ca86ab7a5342e1ed8c81d SHA-1: 69ed43b55a7224ffc0b65eb63fc36228df8e23b5 SHA-256: 74f20c3efc2cae836c9badd08f439659f50c7511239e00f25adce8de926bdf60
196 Risk Score

Malware Insights

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

The PDF contains numerous external links, many pointing to Weebly and CDN domains, suggesting a link farm or redirector strategy for distributing malicious content. The presence of 'SEO_LINK_FARM' and 'SEO_UTM_REDIRECTOR_LINK' heuristics indicates a deliberate attempt to use search engine optimization to lure victims. The ClamAV detection and ML classifier strongly support its malicious nature, likely as a phishing or trojan delivery mechanism.

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://trafftec.ru/123?utm_term=le+jane+de+chava+pdf PDF link annotation
    • https://jitemino.weebly.com/uploads/1/3/0/9/130969659/nomubovotunew.pdfIn PDF document text
    • https://cdn.sqhk.co/jutafegobexe/OrQYbjf/free_cloud_storage_backup.pdfIn PDF document text
    • https://cdn.sqhk.co/noxobabidof/cjfU7he/ladisaxuxiwozuwi.pdfIn PDF document text
    • https://mubelumovetofap.weebly.com/uploads/1/3/1/8/131856402/xonamov.pdfIn PDF document text
    • https://cdn.sqhk.co/sugezigo/gcihAyh/xipafajesekokeri.pdfIn PDF document text
    • https://cdn.sqhk.co/jofutagi/dRjcheW/nutatibotavolewi.pdfIn PDF document text
    • https://cdn.sqhk.co/kofuvufexo/cpgjhbn/66402810082.pdfIn PDF document text
    • https://cdn.sqhk.co/konidadelan/Fjcjage/405773396.pdfIn PDF document text
    • https://cdn.sqhk.co/romilononove/daajjhj/diamond_store_free_diamond_generator_tool_referral_code.pdfIn PDF document text
    • https://zemutixo.weebly.com/uploads/1/3/4/8/134865820/mimuvagenu-bomofimusepe-papajux-rowir.pdfIn PDF document text
    • https://cdn.sqhk.co/junulevi/jnhajjI/bonimubaresujita.pdfIn PDF document text
    • https://cdn.sqhk.co/jisujesox/ja5Dhhc/wise_eyes_bedford_pa.pdfIn PDF document text
    • https://cdn.sqhk.co/kitobanifamo/Kczgdhd/kepifav.pdfIn PDF document text
    • https://site-1179389.mozfiles.com/files/1179389/blue_cross_blue_shield_florida_provider_manual.pdfIn PDF document text
    • https://cdn.sqhk.co/dodamewope/iemRPaB/guzuxemagasozenigeg.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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

Related samples 8

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_off0000f3a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3A3 5016 bytes
SHA-256: 06effe9b7117d91f9c63b6dce9a1844f4890eba46ca6de8d87a9d1e9a22c04d9
font_01_sfnt_off000104cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104CB 13696 bytes
SHA-256: 9d0f21ecfa63ee5958faa9ef82a7c75e1fca77eeaaa262fdfc2d1711d128cc8d

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