Malicious PDF — malware analysis report

Static analysis result for SHA-256 941a57057f22bf3c…

MALICIOUS

PDF

282.5 KB Created: 2022-02-03 11:15:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: ef90b8fdaaa3a5a757958afe33038ff4 SHA-1: dfee39c520f6b63a8689b9042c6f26969d47462c SHA-256: 941a57057f22bf3c8bb8f283fd4138edc6779816e5c4fba9e782fea542b6ff3e
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and a high-confidence heuristic indicates it is a phishing lure using an image to redirect to an external URL. The primary redirector URL is https://cafij.co.za/XSRYdR1H?utm_term=axa+insurance+singapore+annual+report, which is likely part of a credential harvesting scheme. The embedded JavaScript is likely used to facilitate the redirection or exploit vulnerabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6293

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://cafij.co.za/XSRYdR1H?utm_term=axa+insurance+singapore+annual+report PDF link annotation
    • http://abwcockeysville.com/uploads/files/48756433675.pdfIn PDF document text
    • https://techlan.pl/files/file/72161453850.pdfIn PDF document text
    • http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1618e44a2886b8---30199401056.pdfIn PDF document text
    • https://norservis.cz/files/files/47164485016.pdfIn PDF document text
    • https://btegypt.com/file/87831889042.pdfIn PDF document text
    • https://osiindia.org/ckfinder/userfiles/files/72613925570.pdfIn PDF document text
    • http://www.park-seversk.ru/other/js/ckfinder/userfiles/files/pilezasagi.pdfIn PDF document text
    • https://leosservices.com/userfiles/file/fiduniwoxitakigatoja.pdfIn PDF document text
    • https://zpfeni.gov.bd/public/files/assets/ckeditor/kcfinder/upload/files/97248072251.pdfIn PDF document text
    • http://dfwsedan.com/nbloom/fckuploads/file/63655467243.pdfIn PDF document text
    • http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/161ca6f3d26734---30104836263.pdfIn PDF document text
    • http://na-bytecek.cz/UserFiles/File/jifab.pdfIn PDF document text
    • https://satbietthu.com/luutru/files/66829860180.pdfIn PDF document text
    • http://quatanggiabao.com/images/uploads/files/nadewaduzaxawarado.pdfIn PDF document text
    • http://dh-life.com/ckfinder/userfiles/files/68796541545.pdfIn PDF document text
    • https://signos.larrialdiak.es/files/galeria/files/26115063552.pdfIn PDF document text
    • http://synergytaekwondo.com/click2buy_newp/userfiles/file/12486648503.pdfIn PDF document text
    • http://gonvvama.net/filespath/files/20210828235255.pdfIn PDF document text
    • http://deniz-sogutma.org/img/userfiles/file/1797627497.pdfIn PDF document text
    • http://namjapizza.com/app/webroot/files/duseposebosil.pdfIn PDF document text
    • http://deficanderel.com/clients/6/67/674a09facce11b7629d390eef9534ff9/File/8859222696.pdfIn PDF document text
    • http://smolninskayahotel.com/userfiles/file/89324135846.pdfIn PDF document text
    • http://ristoranteyuri2.com/userfiles/file/vokabexajokufamojapelud.pdfIn PDF document text
    • https://paardenwelzijnscheck.nl/app/webroot/files/ckeditor_files/files/tutisuburuv.pdfIn PDF document text
    • http://gazdalkodjokosan.hu/img/userfiles/file/zized.pdfIn PDF document text
    • http://ficfart.org/userfiles/file/mapuvule.pdfIn PDF document text
    • http://gucaoyun.com/uploads/file/101551094255.pdfIn PDF document text
    • http://cvc.ochodnica.sk/userfiles/file/37429472976.pdfIn PDF document text
    • http://www.gieskestukadoors.nl/ckfinder/files/files/tekozugenifopi.pdfIn PDF document text
    • http://architettoletiziamasciotta.eu/userfiles/files/70144555358.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_off0003ff0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3FF0F 16708 bytes
SHA-256: bc794df726a5a8c37625be6a55fe16a5729207b2a58e01915f509a17140313c9
font_01_sfnt_off00042a4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42A4E 10732 bytes
SHA-256: e113292aaf7a0f5b93c8addbbbd772bc428e216341c0c037b8031c6a418d9b81
font_02_sfnt_off00044325.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44325 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9