Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2ec5a22d5e0a3a…

MALICIOUS

PDF

423.5 KB Created: 2021-12-16 14:20:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 92403e533f3fe37828841d40ca987b14 SHA-1: 3efe5378ea47c194dbd19aae865087bb3fc9a08c SHA-256: af2ec5a22d5e0a3a19fa39581fb813f04db4de6f7016842551627c09461ae0b1
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5156

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.
  • 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.
  • 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://allytemp.ru/uplcv?utm_term=e30+bentley+manual+download+pdf PDF link annotation
    • http://eldmsh1.ru/js/ckfinder/userfiles/files/gogedawivejodepixulo.pdfIn PDF document text
    • https://doosradashak.in/ci/userfiles/files/27397202987.pdfIn PDF document text
    • https://www.voctestbursa.org/editconsole/kcfinder/upload/files/68985179415.pdfIn PDF document text
    • http://www.annaleehuber.com/content_files/file/jisaluset.pdfIn PDF document text
    • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/pu1rs9h83g6t7g5hd6jj5kca9e/38872738812.pdfIn PDF document text
    • http://srtcivilnorth.com/ckeditor_file/files/kibevanof.pdfIn PDF document text
    • http://ccsup.co.th/uploads/ckfinder/files/gisijo.pdfIn PDF document text
    • https://giverny-bkk.com/upload/files/vawenemanivitebo.pdfIn PDF document text
    • http://k2plusinterior.com/userfiles/34371775563.pdfIn PDF document text
    • http://eternoohydro.com/d/files/kanedununoremusajevaj.pdfIn PDF document text
    • http://aylabawadi.ae/userfiles/file/89543043093.pdfIn PDF document text
    • http://futuralagoparking.eu/userfiles/files/41253462035.pdfIn PDF document text
    • https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/7604ff3ed71dc91a2b3cc4a64828b565/mokuvufefepegekajus.pdfIn PDF document text
    • http://prestopc.it/upload/file/lanisofunepakoxifagux.pdfIn PDF document text
    • https://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/gefhdrb2u937oljlgllgkv5iau/25251765810.pdfIn PDF document text
    • http://rosg.net/sa_upload/userfiles/file/20211101202737.pdfIn PDF document text
    • http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/161b0019224f41---19728358055.pdfIn PDF document text
    • http://theurbanbazzaar.com/userfiles/file/bupuwofakutitewavudune.pdfIn PDF document text
    • https://veglifekc.org/wp-content/plugins/super-forms/uploads/php/files/75107912283.pdfIn PDF document text
    • http://safeabortionnepal.com/userfiles/file/jojujozipiwabu.pdfIn PDF document text
    • http://glampingcaravan.com/userfiles/file/20210907064540.pdfIn PDF document text
    • http://ehomeforeclosure.org/images/file/28514042052.pdfIn PDF document text
    • http://studiotecnicoprato.eu/userfiles/files/vosevuzupotineguno.pdfIn PDF document text
    • http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/16170cad16c5da---sagigivesolarafikuvar.pdfIn PDF document text
    • http://casier-a-bouteilles.fr/file/vuxajefanetare.pdfIn PDF document text
    • https://www.assessment.unibe.ch/app/webroot/js/ckfinder/userfiles/files/tobinusubovogix.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_off000633a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x633A5 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off00064a44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64A44 16604 bytes
SHA-256: 92a684a4e721663a03725db6e73f21fba30e30dfb33da0003f2b995abe656f56
font_02_sfnt_off00067571.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67571 11016 bytes
SHA-256: 27207a7c56467596db4dcf525d6ba314b1bd7ddc9ad7d115caf87c83929bb827