Malicious PDF — malware analysis report

Static analysis result for SHA-256 9413b71de2c359e6…

MALICIOUS

PDF

339.9 KB Created: 2022-04-12 19:51:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: de9520f2ae1cc27e579dec12d8a3da8a SHA-1: ee24dacdafd9dfc76b55c3523c92ee239c50fcc3 SHA-256: 9413b71de2c359e674a644a3452973b047d75d2da2c14d19008c5e84b59cb2dd
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded JavaScript and multiple external URIs, including one identified as an SEO redirector for free-download phishing. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded JavaScript likely facilitates the redirection or further payload delivery, contributing to the phishing attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6641

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://yubit.co.za/XSRYdR1H?utm_term=adam%27+s+house+cat PDF link annotation
    • https://zebigogax.weebly.com/uploads/1/3/4/4/134459641/fesigesevivunava.pdfIn PDF document text
    • https://bameruzuwinasi.weebly.com/uploads/1/4/1/4/141449412/9621b167f96f.pdfIn PDF document text
    • https://drddvichitra.com/userfiles/file/50838060118.pdfIn PDF document text
    • https://visobugogo.weebly.com/uploads/1/3/4/5/134582963/5b170cf00b4.pdfIn PDF document text
    • https://havadisname.com/upload/ckfinder/files/43850881433.pdfIn PDF document text
    • https://dixapixukezawe.weebly.com/uploads/1/3/5/3/135388261/3efae7955e.pdfIn PDF document text
    • https://destockbaby.com/ckfinder/userfiles/files/38624765350.pdfIn PDF document text
    • https://losujawidejope.weebly.com/uploads/1/3/4/3/134310111/1960139.pdfIn PDF document text
    • https://apsons.eu/files/file/verunomaxawiduwo.pdfIn PDF document text
    • http://schokozentrale.de/idata/86301121898.pdfIn PDF document text
    • https://bulugigedi.weebly.com/uploads/1/3/4/7/134714886/3045893.pdfIn PDF document text
    • http://ecogestval.com/userfiles/file/xoribelinofoduziguma.pdfIn PDF document text
    • https://ski-valloire.com/ckfinder/userfiles/files/tifera.pdfIn PDF document text
    • http://alrabbanoilandgas.com/file/files/kitalubapugelafuzaloz.pdfIn PDF document text
    • https://dopozagipixa.weebly.com/uploads/1/3/2/7/132741545/gumapan-texure.pdfIn PDF document text
    • http://botosani.ro/img/uploads/file/safobejefazo.pdfIn PDF document text
    • http://iq-money.ru/upload/files/40253403869.pdfIn PDF document text
    • http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16228b05316ce7---raxev.pdfIn PDF document text
    • https://serabonileraso.weebly.com/uploads/1/3/4/4/134444783/2836697.pdfIn PDF document text
    • http://studiotecnicomancini.eu/userfiles/files/tixunore.pdfIn PDF document text
    • http://zxpgw.com/userfiles/file/56933453322.pdfIn PDF document text
    • https://bijasekimuku.weebly.com/uploads/1/3/4/5/134593614/b3172.pdfIn PDF document text
    • http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/161f8c1e217bb1---42587472862.pdfIn PDF document text
    • https://htcpost.vn/vietpost.vn/img_content/file/ralumebozuviguva.pdfIn PDF document text
    • https://muacash.com/webroot/img/files/37790917773.pdfIn PDF document text
    • https://databaze-zdarma.cz/userfiles/files/81780496575.pdfIn PDF document text
    • https://nigifizalajiwa.weebly.com/uploads/1/4/1/4/141411119/sewerovaz.pdfIn PDF document text
    • http://bcf-plv.com/kcfinder/upload/files/xisenesamelumasuzus.pdfIn PDF document text
    • https://biblioteka-koneck.pl/ckfinder/userfiles/files/8863372637.pdfIn PDF document text
    • https://www.retailexpert.sk/gfx/administration/js/ckeditor/kcfinder/upload/files/sikit.pdfIn PDF document text
    • https://dewubixire.weebly.com/uploads/1/3/1/3/131398231/ropid-fuxagov-nenodusoz.pdfIn PDF document text
    • https://netukilegulises.weebly.com/uploads/1/3/1/6/131606016/rumojavewidetuluk.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_off0004dc77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DC77 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0004f48e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F48E 10408 bytes
SHA-256: 52e2b3d6222f4401890b8e15b3b284284f9c7866e21586137ed6daa5d4abc67e
font_02_sfnt_off00050c40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50C40 19740 bytes
SHA-256: cf4f4704f3c222a79681ed2e6877b307824bbe1d1091ad2714ac0d071b8b1130