Malicious PDF — malware analysis report

Static analysis result for SHA-256 9744194913a6e583…

MALICIOUS

PDF

72.4 KB Created: 2021-02-15 09:02:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 05dae45375830ac7d5d07153f7d58cc0 SHA-1: 3cfaa3dbffca744f28e073ada04ab0ba17674c58 SHA-256: 9744194913a6e5830bc97080b5d9556d7b7ed4dce287804a183110ea7dec1f1f
136 Risk Score

Malware Insights

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

The PDF contains an embedded URI and a high-severity heuristic indicating it's an image lure linking to an SEO redirector for phishing. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution. No scripts were extracted, but the presence of external URIs points to a potential download or redirection mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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
  • 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://leonvi.ru/aws?utm_term=anti+corruption+policy+format PDF link annotation
    • http://stassikorskyi.com/568040072223w23o.pdfIn PDF document text
    • http://raifaisentgo.online/43606454728ry9rf.pdfIn PDF document text
    • http://cookwellbakewell.com/les_choristes_la_nuit_piano_sheet_musicljz34.pdfIn PDF document text
    • http://verefdliyvtorogo.xyz/bourbaki_elements_of_mathematicsnvocy.pdfIn PDF document text
    • http://supernefritroller.xyz/gupoxuzidoloraki4woza.pdfIn PDF document text
    • http://1cats.space/kigivijifudopkbi4r.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/lorerexeg/zezigotifuj.pdfIn PDF document text
    • https://s3.amazonaws.com/dutimajizowa/impala_platinum_holdings_ltd_annual_report_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/jujojomojemiz/16666636100.pdfIn PDF document text
    • https://s3.amazonaws.com/bejexe/vivirinegajuzep.pdfIn PDF document text
    • http://fafebexa.epizy.com/dls_18_all_team_logo.pdfIn PDF document text
    • https://s3.amazonaws.com/kigavanus/96094369175.pdfIn PDF document text
    • https://s3.amazonaws.com/zusevamasor/air_force_last_year_paper.pdfIn PDF document text
    • https://s3.amazonaws.com/tulosa/lofudetofipoxozafunewaxa.pdfIn PDF document text
    • https://s3.amazonaws.com/gurafoga/54365108049.pdfIn PDF document text
    • https://s3.amazonaws.com/kisimujuk/font_billabong_instagram.pdfIn PDF document text
    • https://s3.amazonaws.com/dixaleko/40955163775.pdfIn PDF document text
    • https://s3.amazonaws.com/dupula/buwevuwatunujemafe.pdfIn PDF document text
    • https://s3.amazonaws.com/pesetufavo/vehicle_check_sheet_app.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_off0000dfd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFD2 5076 bytes
SHA-256: f5bec62f44208c162d2c5c0aa4157107dec7c68e914a701915d1e16f419b46cc
font_01_sfnt_off0000f10d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF10D 10444 bytes
SHA-256: 8ce1dee9fa1559ab924f414dc915db7e34a9415fdb90225b449548462a4a03af

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