Malicious PDF — malware analysis report

Static analysis result for SHA-256 941993bb5cd5eb62…

MALICIOUS

PDF

254.2 KB Created: 2022-04-22 07:08:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: a895b0c13f72db9a5d04dd350e678c4c SHA-1: ccf9dde75ad74497fd045e390238fac21972a61f SHA-256: 941993bb5cd5eb6216f492bf310dd99a0e23ab8309c2f8d26753a8cb463c576e
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains embedded JavaScript and a high-risk external URI, indicating a potential phishing or malware delivery attempt. The heuristic 'SE_INVOICE_LURE' suggests the document is designed as a fake invoice or payment request to entice users to click the malicious link. The embedded JavaScript likely facilitates the redirection or payload execution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7120

Heuristics 7

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://yoyep.co.za/XSRYdR1H?utm_term=filmora+icloud+unlocker PDF link annotation
    • https://xezitolisaja.weebly.com/uploads/1/3/1/4/131406502/fb8dde2.pdfIn PDF document text
    • http://park-seversk.ru/other/js/ckfinder/userfiles/files/feleketeroxome.pdfIn PDF document text
    • http://rogatka.osieczna.eu/userfiles/file/72815446358.pdfIn PDF document text
    • http://himalayakebab.irafbrothers.com/shipinc/userfiles/files/85865789894.pdfIn PDF document text
    • http://jplus-ag.com/upload/files/BodyFile__62502159BEBDA.pdfIn PDF document text
    • https://noihoithanhtuan.com/media/ftp/file/89506484523.pdfIn PDF document text
    • https://mominebokax.weebly.com/uploads/1/3/4/8/134899741/752168.pdfIn PDF document text
    • https://pokereshop.cz/data/file/surevibatupawo.pdfIn PDF document text
    • https://konferencia2014.medius.sk/userfiles/file/24202283724.pdfIn PDF document text
    • http://cloverdiamond.com/file/nojisojotojodadipige.pdfIn PDF document text
    • http://ristoranteibucanieri.it/userfiles/files/nekepakufikekefa.pdfIn PDF document text
    • https://chaletvenay.skidnapping.com/uploadfiles/files/tojojamutawu.pdfIn PDF document text
    • http://laser-piskovani.cz/democms/userfiles/file/disuzazalito.pdfIn PDF document text
    • http://neogmbh.de/www/sites/default/files/userfiles/file/83096064490.pdfIn PDF document text
    • http://privatmajo.sk/upload/files/19586973317.pdfIn PDF document text
    • http://sghr.ca/upload/ckfinder/files/gakumo.pdfIn PDF document text
    • https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/5q0ofikn3qophvssl9iuvl11hc/14118906930.pdfIn PDF document text
    • https://theatresaucinema.fr/uploads/file/75821795619.pdfIn PDF document text
    • http://chandox.yun2u.com/upload/files/sanowivolaropapepoxaduja.pdfIn PDF document text
    • http://myshiou.com/uploads/files/202204062036249632.pdfIn PDF document text
    • https://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/1622d45318c34e---78330049518.pdfIn PDF document text
    • http://vatlieulamnha.com/media/ftp/file/48277869397.pdfIn PDF document text
    • http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/162389e3623e0c---88283329560.pdfIn PDF document text
    • https://adpslunicko.cz/img/upload/files/15741335095.pdfIn PDF document text
    • http://sanjosechakan.com/lib/kcfinder/upload/files/97840472774.pdfIn PDF document text
    • http://diar.pkauto.sk/images/_file/34609609772.pdfIn PDF document text
    • https://ttablaksystem.hu/files/file/28162735768.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_off000385fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x385FE 10432 bytes
SHA-256: afd8f0ac706ac0c4c7bc70bd8f79411d39ed7054699cc4f778f4f6cc2881a0c4
font_01_sfnt_off00039d86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39D86 19728 bytes
SHA-256: 1445e757e66a11ddc976468d81d0a3d63c03dd63fc4fc58e8a6476ffe51970de
font_02_sfnt_off0003d1da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D1DA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1