Malicious PDF — malware analysis report

Static analysis result for SHA-256 22bb8873a36a37be…

MALICIOUS

PDF

254.6 KB Created: 2022-01-01 02:03:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-03
MD5: 2cdec6f959ebf36c214d0f354183c763 SHA-1: 4f41c3a4d5882d4069ee1a4b117828125f0d7154 SHA-256: 22bb8873a36a37be14f04ca495adadc0d28a03482041209934e2870c8ff61bb2
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8006

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 https://coretry.ru/uplcv?utm_term=city+map+for+minecraft+pc PDF link annotation
    • http://www.guard.ee/kcfinder/upload/files/favakopitawiwiwufuno.pdfIn PDF document text
    • http://lukasikgroup.pl/Image/files/goxukujodexalujew.pdfIn PDF document text
    • https://niboparis.com/upload/fckeditor/files/99941171663.pdfIn PDF document text
    • http://berbun.com/user_img/file/latuxato.pdfIn PDF document text
    • http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/161a9162593801---47975209595.pdfIn PDF document text
    • http://ekouklid.eu/UserFiles/file/nazezimupibus.pdfIn PDF document text
    • http://studiolegaletrotta.eu/userfiles/files/42924575518.pdfIn PDF document text
    • http://denprokhorov.ru/images/file/moret.pdfIn PDF document text
    • https://darman.shasbod.ir/UploadedFiles/New/file/63403467719.pdfIn PDF document text
    • http://architettosirocco.it/userfiles/files/relupavosimonizokimok.pdfIn PDF document text
    • https://bosingels.nl/ckfinder/userfiles/files/damofita.pdfIn PDF document text
    • http://saltokisport.com/uploads/files/dumenonem.pdfIn PDF document text
    • https://dolaodong.baohohoanglong.com/userfiles/file/terilesikita.pdfIn PDF document text
    • http://beerskiboot.com/img/upload/file/zowositekafatevodo.pdfIn PDF document text
    • http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1616378988d2d6---5508469080.pdfIn PDF document text
    • https://sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16159147236c91---wobisunazigamopasetubog.pdfIn PDF document text
    • http://affordableadobe.com/ckfinder/userfiles/files/52300518287.pdfIn PDF document text
    • http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/1617d463b21814---59859199481.pdfIn PDF document text
    • http://kesifveotesi.com/files/73879559956.pdfIn PDF document text
    • https://tedvandergulik.nl/userimages/file/25803335233.pdfIn PDF document text
    • http://www.ujepites.hu/userfiles/files/wufaragasuleneladoxugan.pdfIn PDF document text
    • http://dakmet.pl/upload/44926338438.pdfIn PDF document text
    • http://temple.mo/userfiles/file/jotiwor.pdfIn PDF document text
    • https://fp-088.flexxmedien.com/flexxtrader/data/usf/file/7153378594.pdfIn PDF document text
    • https://asaptransfers.co.uk/wp-content/plugins/super-forms/uploads/php/files/797230cbd9c4d10227ca7c9d25d3b966/tawovumijisuwuponejo.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_off00038ec4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x38EC4 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0003a568.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A568 10572 bytes
SHA-256: 819f0911ad44369a9c465aa978cc39bb5b8ab8f8089e139f554a0fd086fc6d7c
font_02_sfnt_off0003bd91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3BD91 17848 bytes
SHA-256: ea6675acbdad93259ff3b5510f4293966f6d34c57b47bfc703dd50818226689a