Malicious PDF — malware analysis report

Static analysis result for SHA-256 07808191c7ebebd7…

MALICIOUS

PDF

92.4 KB Created: 2021-01-30 05:34:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 0855ad92078df483f9750489ff6ba528 SHA-1: d02e570abbb6d82e4383697994c55db3dc2c6e65 SHA-256: 07808191c7ebebd7e822c1f32322672ba90f768d1c3c95be5d548b196a8e8894
194 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file exhibits characteristics of a phishing lure, employing a link farm to redirect users to various download pages. The heuristic PDF_SEO_LINK_FARM indicates a large number of external PDF links, suggesting an attempt to manipulate search engine results for malicious purposes. The presence of multiple unknown URLs and the ClamAV detection as 'Pdf.Phishing.Trojan' strongly support a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9589

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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
  • 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://jottigo.ru/aws?utm_term=branches+of+applied+psychology+pdf PDF link annotation
    • https://cdn.sqhk.co/jedugifaxido/ciiichg/archery_king_game_download_apps.pdfIn PDF document text
    • https://cdn.sqhk.co/sixepatexup/Y8TFx67/tablet_messenger_premium_mod_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495264/normal_5fff6b7ee2145.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4502870/normal_5fce0d14c139a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416656/normal_5ff87c9669b54.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422386/normal_5fcd605ed1fcf.pdfIn PDF document text
    • https://cdn.sqhk.co/xarozowuzosa/egf2MOm/navneet_kaur_dhillon_instagram_pics.pdfIn PDF document text
    • https://nenubijul.weebly.com/uploads/1/3/5/3/135393623/ropokomumawojogetizu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403117/normal_5feec9ee994d8.pdfIn PDF document text
    • https://pudasebedizut.weebly.com/uploads/1/3/4/5/134587980/70f163.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4528876/normal_5ff5a8342f0fa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zubuwujoxom/chattels_list_form.pdfIn PDF document text
    • http://xazitew.epizy.com/curious_about_fossils.pdfIn PDF document text
    • https://s3.amazonaws.com/tobojelusiwi/65592126393.pdfIn PDF document text
    • https://s3.amazonaws.com/gofilafixu/jupopugokovupuxekenodule.pdfIn PDF document text
    • https://s3.amazonaws.com/ziwuvijevo/company_of_heroes_2_compressed.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000156c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x156C2 5568 bytes
SHA-256: aa4f6a1b6f956cbba585f84e3694b34f1a918518033081c61dca7fcad51a6f46

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