Malicious PDF — malware analysis report

Static analysis result for SHA-256 793b38eb774ec209…

MALICIOUS

PDF

276.0 KB Created: 2022-04-23 23:51:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: fd5fa5497a08bfe9b7b4d8cbaf45ae06 SHA-1: 48d595bc9c1e833239e8a3504df3b15708f23fdc SHA-256: 793b38eb774ec209aba01a1f5c6abccecd9efcb740a0f1fd80c58c0a9c138344
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded JavaScript stream and multiple external URIs, including one identified as an SEO redirector for a free download phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. The JavaScript likely facilitates the download and execution of a second-stage payload from the identified redirector URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9562

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
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://fecuq.co.za/XSRYdR1H?utm_term=andy+for+windows+64+bit PDF link annotation
    • http://manchetenewsms.com.br/ckfinder/userfiles/files/92337491675.pdfIn PDF document text
    • http://cadex-forensic.com/app/webroot/kcfinder/upload/files/fibitojaxeneniku.pdfIn PDF document text
    • https://tenekitu.weebly.com/uploads/1/3/4/0/134018212/medusatesagamu-vubini.pdfIn PDF document text
    • http://tral-kerch.ru/userfiles/file/nenovalopogotosuzukixazi.pdfIn PDF document text
    • http://www.studioamorosi.com/notizie/allegati/51789829612.pdfIn PDF document text
    • https://www.agbfiltros.com/backoffice/assets/js/kcfinder/upload/files/xajizejog.pdfIn PDF document text
    • https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622ad82b6c6d9---wagapuwupexofoxajuvife.pdfIn PDF document text
    • http://pead.org.bd/assets/ckeditor/kcfinder/upload/files/64573950618.pdfIn PDF document text
    • http://matrix-corporation.com/upfiles/editor/files/likatewe.pdfIn PDF document text
    • http://1sourcematerialhandling.com/userfiles/file/50179069882.pdfIn PDF document text
    • https://balatonpremiumvillas.hu/webroot/upload/files/kimolunosita.pdfIn PDF document text
    • http://finance-bulldog.cz/UserFiles/File/30186243926.pdfIn PDF document text
    • https://fumitosebajogo.weebly.com/uploads/1/3/0/7/130740118/xedizusiwarud_jozife_pugewodup.pdfIn PDF document text
    • http://terrigena.cz/data/pic/files/tofijafewanuxapuj.pdfIn PDF document text
    • http://praconsulgroup.ru/pict/file/weletaburaxux.pdfIn PDF document text
    • https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1622420c82c6eb---fupinerovonaxejovawawos.pdfIn PDF document text
    • https://sscs-uae.com/userfiles/files/36025961279.pdfIn PDF document text
    • http://alibabashipping.com/userfiles/file/sosafewudipegiwesud.pdfIn PDF document text
    • https://mivifasev.weebly.com/uploads/1/3/1/4/131483453/2587876.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003df93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3DF93 19440 bytes
SHA-256: 99e1dde8544214ac8f2b008e15efb24e3ca4e66d8cd7fe33a4a5dd2549d9a694
font_01_sfnt_off00041184.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41184 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0004299b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4299B 10576 bytes
SHA-256: 407805cf59774155778d934b8561ee33ef355054c5be826ba6b3aad279e0130c

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