Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d3aa170fb435816…

MALICIOUS

PDF

261.6 KB Created: 2022-01-06 18:48:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: 05c9beb9ac94b7f9d3576d1816705184 SHA-1: c0b9e252a5a0bdd2c8572ee57ced3b332d430e31 SHA-256: 0d3aa170fb435816c1f20cd1748dd639ac7af8c269757567f94e053344fd78d0
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8165

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.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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 http://basic-55.su/kcfinder/upload/files/defodumewisuserabufuvere.pdf In PDF document text
    • http://turchifiltri.com/userfiles/files/65893959080.pdfIn PDF document text
    • http://personal.sut.ac.th/chantira/port/ckfinder/userfiles/files/mezijepol.pdfIn PDF document text
    • http://chinamakina.com/userfiles/file/40677346473.pdfIn PDF document text
    • http://trungtamsangloc.vn/uploads/ck_upload/files/tibakebawijilivisikirux.pdfIn PDF document text
    • https://soccerauquebec.com/userfiles/file/bewebipixot.pdfIn PDF document text
    • https://www.bevillelecomte.com/ckfinder/userfiles/files/62820222637.pdfIn PDF document text
    • http://vakoplus.cz/klienti/devel/sneznerolby.cz/ckfinder/userfiles/files/ravebekamefunuwimeg.pdfIn PDF document text
    • https://revapackers.com/wp-content/plugins/super-forms/uploads/php/files/8rakf3ktl5uv23aed6shcmlrv8/647130155.pdfIn PDF document text
    • https://icoachyou.biz/images/ckeditor/files/natamamovokibodaxif.pdfIn PDF document text
    • http://www.vzwapart.be/upload/files/vunudabafafefidupotamuz.pdfIn PDF document text
    • http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/161b7b15dca7d7---dedujotokawanodugag.pdfIn PDF document text
    • http://freehajjandumrah.com/admin/admin/uploadfiles/file/4641125823.pdfIn PDF document text
    • https://nieruchomosciturystyczne.eu/files/file/13591985740.pdfIn PDF document text
    • http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161c2bca8bcfc0---nawetujata.pdfIn PDF document text
    • http://5lovestartw.com/CKEdit/upload/files/19821676813.pdfIn PDF document text
    • http://nova-auto.com/upload/10713764670.pdfIn PDF document text
    • https://nistd.in/userfiles/file/85566918149.pdfIn PDF document text
    • http://elencostruzioni.it/userfiles/files/35556960605.pdfIn PDF document text
    • http://fpmalyon.belikenoone.com/media/kcfinder/upload/files/18470695676.pdfIn PDF document text
    • https://otomatcilarmetal.com/otomat/upload/files/zogedizumaladilupukuj.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/UsNeCLCzgYg/uplcv?utm_term=choose+video+from+gallery+android+examplePDF link annotation
    • 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_off0003a656.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A656 11160 bytes
SHA-256: 9a8fee7b331c7a0aa36c4aacb4bbb9d34ac5034c62d308e2a26eec92a3c53630
font_01_sfnt_off0003c01d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3C01D 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0003d6bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D6BC 18348 bytes
SHA-256: 13dbafd662690a23266303c8767feb6ebf63325fff324311c4a2505039e5e131