Malicious PDF — malware analysis report

Static analysis result for SHA-256 445df39f39ac4495…

MALICIOUS

PDF

268.5 KB Created: 2022-02-22 11:48:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: e04121f29086bcdef6f57b82635a608a SHA-1: c4db92393c559ebff3ad34af3dc31971c3fad270 SHA-256: 445df39f39ac4495017c3baa0fd48f0039d1aa10e4b1cf66d7f73ad28eb80134
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high-severity heuristic indicating it is an SEO redirector link used for free-download phishing. The embedded URL, https://lazav.co.za/XSRYdR1H?utm_term=json+formatter+sublime+plugin, likely leads to a malicious site. ClamAV also detected this file as Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0, further supporting its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5476

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://lazav.co.za/XSRYdR1H?utm_term=json+formatter+sublime+plugin PDF link annotation
    • https://mamalight.org/business_school/uploads/file/87523821002.pdfIn PDF document text
    • https://unityofmyanmar.org/images/files/6206809534.pdfIn PDF document text
    • https://thebillionbottom.com/business_school/uploads/file/rovolesarewobudulam.pdfIn PDF document text
    • http://bidwoodmachine.com/d/files/jepowifepajetodavalutiw.pdfIn PDF document text
    • https://altinone.cz/files/ckfiles/file/46003200045.pdfIn PDF document text
    • https://ctyhoanongangiang.com/userfiles/file/kawawakezex.pdfIn PDF document text
    • https://havilahbuilders.com/userfiles/file/vunomivun.pdfIn PDF document text
    • https://faktxeber.ru/resimler/files/79039272720.pdfIn PDF document text
    • http://ucg-eg.com/userfiles/file/35322875535.pdfIn PDF document text
    • https://bodymason.com/user_uploads/files/zijuvigufosulajumubezed.pdfIn PDF document text
    • http://theflowermaker.com/uploads/File/22809596878.pdfIn PDF document text
    • https://aristi-trap.com/upload/users/files/danuxejevim.pdfIn PDF document text
    • http://asbu.net/uploads/FCK_files/file/72797378695.pdfIn PDF document text
    • https://www.coremg.org.br/dinamico/includes/kcfinder/upload/files/telesotitetolarogipife.pdfIn PDF document text
    • http://www.kowel.com/ckfinder/userfiles/files/1636442060.pdfIn PDF document text
    • https://monamifrance.com/FileData/ckfinder/files/20210811_EC1F06D4D44D793A.pdfIn PDF document text
    • https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161558919c2f2d---12188607907.pdfIn PDF document text
    • http://ep9.cz/kcfinder/upload/files/49954600924.pdfIn PDF document text
    • http://deaprogettazioni.it/userfiles/files/kevisujutudulijoko.pdfIn PDF document text
    • http://faceti.es/fil/ckFiles/files/toxutixenasodufow.pdfIn PDF document text
    • http://speckletrack.com/update/editor/file/xujubikif.pdfIn PDF document text
    • https://ngoctraithaibinhduong.com/uploads/news_file/poposifiwojadiroja.pdfIn PDF document text
    • http://ssaisarang.com/ckfinder/userfiles/files/mojetopevojiguk.pdfIn PDF document text
    • https://leo.tw/upload/ckeditor/files/newanivuwinapeledim.pdfIn PDF document text
    • http://www.pvvc.cz/files/xuzupuvutetid.pdfIn PDF document text
    • http://sictombbi.fr/ckfinder/userfiles/files/muwul.pdfIn PDF document text
    • https://online-wums.com/files/files/4534681629.pdfIn PDF document text
    • http://indagosrl.it/userfiles/files/60627537830.pdfIn PDF document text
    • https://rosenstein.lu/userfiles/files/57235554383.pdfIn PDF document text
    • http://stevis.cz/files/file/fawulakonenu.pdfIn PDF document text
    • https://arad.hu/files/files/55181099522.pdfIn PDF document text
    • https://aiwcecckolkata.org/FCKeditor/file/sabaniwunabumuxuwomigu.pdfIn PDF document text
    • https://confidence-ist.mktechsol.com/ckfinder/userfiles/files/kamazinojasexededakal.pdfIn PDF document text
    • http://szentdorottyapatika.hu/files/92945590189.pdfIn PDF document text
    • http://itaxabc.com/userfiles/file/20211201025222_1014097435.pdfIn PDF document text
    • https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/161755d067fa11---36251167794.pdfIn PDF document text
    • http://sherpakhabar.com/dbros/public/ckeditor/kcfinder/upload/files/43813019993.pdfIn PDF document text
    • http://aimecostruzioni.it/userfiles/files/2607613927.pdfIn PDF document text
    • https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1620168935f67b---2731535516.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00039cf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39CF0 20336 bytes
SHA-256: 60989f9d6bd817d0467c0e6c0cd06c77de92c7fd6a6c38a0f07fc0ce37d525b8
font_01_sfnt_off0003d2ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D2EC 10932 bytes
SHA-256: e6f16a67f307742f12de96e8eb56199d768da4a1f63539ca8cd8b2e1bdcc24f8
font_02_sfnt_off0003ec10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3EC10 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_03_sfnt_off00040327.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40327 8816 bytes
SHA-256: abe678c62387af4b2e6a7601da0b8e5211f2553d73777a552076658f13956500