Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a5115ac316e1f44…

MALICIOUS

PDF

70.8 KB Created: 2021-05-11 16:45:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b4be40dc86808eedba7cd84c3b6fb90b SHA-1: 1ae6ec82efac26ec72d26c12a2a8181b830c4a7f SHA-256: 9a5115ac316e1f44020db076713e8c2ed6069dbefda772cc2c044c0d3bb19e91
134 Risk Score

Malware Insights

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

The PDF contains heuristics indicating it is a phishing lure, redirecting users to a malicious URL. The ClamAV detection and ML classifier further support its malicious nature. The embedded URLs suggest an attempt to trick users into downloading further malicious content or visiting a phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7298

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jacksth.ru/strik?utm_term=amar+chitra+katha+books+pdf PDF link annotation
    • http://uscreditinquiry.info/86760784047aeepj.pdfIn PDF document text
    • http://kepogosibasenip.iblogger.org/70527251014.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447885/normal_6031139e94815.pdfIn PDF document text
    • http://kutakelipaxeb.22web.org/business_dashboard_templates_powerpoint.pdfIn PDF document text
    • https://s3.amazonaws.com/dafumuxitupav/how_to_be_smart_in_mind.pdfIn PDF document text
    • https://s3.amazonaws.com/tuzamada/google_chrome_android_bookmark_bar.pdfIn PDF document text
    • https://s3.amazonaws.com/nuvukivaxiren/naxinukuzuxisigiwizu.pdfIn PDF document text
    • https://s3.amazonaws.com/dujepav/93099213636.pdfIn PDF document text
    • http://leqqurint.online/76077979366jevio.pdfIn PDF document text
    • http://art-practice.org/nomigesmmqi0.pdfIn PDF document text
    • http://toolsbestpricemicrometer.site/lovez04lks.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467277/normal_6029d5916db38.pdfIn PDF document text
    • http://vertitribe.store/5886443683gk8p8.pdfIn PDF document text
    • https://s3.amazonaws.com/xoferuzu/crochet_patterns_for_bernat_super_bulky_yarn.pdfIn PDF document text
    • http://nunanokipikade.22web.org/battle_cats_crazed_cow_guide.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sezusin.rf.gd/project_risk_management_books.pdfIn PDF document text
    • https://f77c8dad-41d7-4a8f-8d8d-c05149a3a236.filesusr.com/ugd/36d413_4e312dddbf6945f1aa982e89ba16ccc5.pdf?index=trueIn PDF document text
    • https://2521c3e2-5736-45bb-9381-71005f2ffa37.filesusr.com/ugd/c85705_0b3338e603f845bf832352d9bfeaab3b.pdf?index=trueIn PDF document text
    • http://mimosoxokilufaf.epizy.com/xakidazoleg.pdfIn PDF document text
    • https://2b81f3f0-3f46-42ff-87a7-5865dd96cd3c.filesusr.com/ugd/fb41f9_a3d3c9ae6d8f482f83953a0a16f91418.pdf?index=trueIn 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_off0000ddc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDC3 5556 bytes
SHA-256: e287220ff9079fda8934334a99ab0ed2380e5561184efb14119827a0df29e353
font_01_sfnt_off0000f06e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF06E 4152 bytes
SHA-256: 6436214169b01c95aa4e7afad8a6a3267c933459c02c19a7dfb487bc885f5cd0