Malicious PDF — malware analysis report

Static analysis result for SHA-256 793e6a23d090f3e4…

MALICIOUS

PDF

576.5 KB Created: 2022-02-01 11:04:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: 1aad986d9697edaa1b9a20e8cf8eaf8d SHA-1: b9aa1c4ea8d0e4dd7ba0a555a1d95a9ceba84663 SHA-256: 793e6a23d090f3e4aeaa47c4f5bbaf4c0f4be4a0df224bd13106188a992d70d6
144 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3985

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://colod.co.za/XSRYdR1H?utm_term=simple+past+tense+wh+questions+and+answers PDF link annotation
    • https://freeunlock.com/uploads/file/25100261985.pdfIn PDF document text
    • http://ch-yang.com/upload/files/zowuziwarolewufagurunowat.pdfIn PDF document text
    • https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16179a80dadfa5---73788776126.pdfIn PDF document text
    • https://ymvii.com/admin/upload/files/39109323825.pdfIn PDF document text
    • http://koala-al.com/d/files/panipemutujodaxasuneje.pdfIn PDF document text
    • http://avvocatogiuliani.it/userfiles/files/64049064576.pdfIn PDF document text
    • http://muszempilla.com/files/file/ragigelub.pdfIn PDF document text
    • https://camgloberealtor.com/userfiles/file/5491637475.pdfIn PDF document text
    • https://silverlabpupsforsale.com/userfiles/files/temajaderojifopuziroga.pdfIn PDF document text
    • http://tt-ural.su/admin/ckfinder/userfiles/files/26822163568.pdfIn PDF document text
    • https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/161a48605f3dd6---46186290002.pdfIn PDF document text
    • https://safrano.pl/userfiles/file/xilidevovatilek.pdfIn PDF document text
    • https://bnbcostaverde.it/userfiles/file/84297315561.pdfIn PDF document text
    • http://specel.kz/app/webroot/js/kcfinder/upload/files/lazawil.pdfIn PDF document text
    • http://faradbox.pl/files/file/90132889200.pdfIn PDF document text
    • https://atiksigorta.com/files/kenemor.pdfIn PDF document text
    • http://volker-issmer.de/userfiles/file/51835993239.pdfIn PDF document text
    • http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/161bd2a69eada8---milubukikafavoxoti.pdfIn PDF document text
    • http://smolninskayahotel.com/userfiles/file/xajasomak.pdfIn PDF document text
    • https://ises.ca/phpsites/vertical_living/uploads/file/88439377327.pdfIn PDF document text
    • http://spprp.pl/userfiles/file/60281409204.pdfIn PDF document text
    • http://0470caipu.com/data/upload/File/79506113401.pdfIn PDF document text
    • http://dailycan.com/userfiles/files/ropuzeg.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_off0008946d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8946D 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0008ab11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AB11 11064 bytes
SHA-256: 3dfb893a05bc540f8d0eefc287c56db85b35dffcd3c1ae806688979e64b7c600
font_02_sfnt_off0008c46c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C46C 18004 bytes
SHA-256: a8005a3a31c06697a2ca3d259ee37dfef23448b9d76e366efb2d7b77c575e8d3