Malicious PDF — malware analysis report

Static analysis result for SHA-256 4de223e067d29122…

MALICIOUS

PDF

273.0 KB Created: 2022-03-12 09:51:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-29
MD5: 4523254f00de4ba17a149d91c9073c47 SHA-1: 770ed661b7bd8b15d9f738594c5487c04f6fdfe3 SHA-256: 4de223e067d291221b4aeeedebcc5fb9860012252d08ccc502f13b3be47379bf
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://colod.co.za/XSRYdR1H?utm_term=ex+ante+evaluation+guidelines PDF link annotation
    • https://thietbixanh.net/uploads/files/46370123465.pdfIn PDF document text
    • https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/16225acba6e525---wimoniju.pdfIn PDF document text
    • http://metaphorcreators.com/kcfinder/upload/files/37129350922.pdfIn PDF document text
    • http://telekommarketing.com/firme_data/files/lofetodorilukuri.pdfIn PDF document text
    • http://jysfh.com/upload_fck/file/2022-2-15/20220215115144599942.pdfIn PDF document text
    • http://thanglong.vn-greenenergy.com/ckfinder/userfiles/files/41195020295.pdfIn PDF document text
    • https://maintogelonline2.bet/contents/files/91029932404.pdfIn PDF document text
    • http://nj-rshb.com/v15/Upload/file/2022311826471945.pdfIn PDF document text
    • https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/16201bf460a7da---wifetudijalofukepijub.pdfIn PDF document text
    • https://journeypeople.cc/wp-content/plugins/super-forms/uploads/php/files/550cddcfbd14fa205fff7e43e545b4cb/julonozapimop.pdfIn PDF document text
    • http://sabaispa.net/userfiles/file/pivalabevogujasigema.pdfIn PDF document text
    • http://www.cheapmotorcycleinsurancepa.com/wp-content/plugins/super-forms/uploads/php/files/9888c08eee23f5eb279ea5e4efe5b6a8/16186295157.pdfIn PDF document text
    • http://saintthomassolapur.org/admin/kcfinder/upload/files/fajagutewebejun.pdfIn PDF document text
    • http://basketaci.cz/UserFiles/File/webapiwetolarolelasinere.pdfIn PDF document text
    • http://ros-audit.com/i/up/file/60810560388.pdfIn PDF document text
    • https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/16200750746bd5---zumijukunapupibiwa.pdfIn PDF document text
    • http://interel-rus.ru/test/sites/default/files/file/wugikoluzakebu.pdfIn PDF document text
    • http://ylgems.com/file_media/file_image/file/67269493765.pdfIn PDF document text
    • http://rrarental.org/upload/file/74131364882.pdfIn PDF document text
    • http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1621d536d3f2c8---53486950266.pdfIn PDF document text
    • http://erdelyironkbutor.hu/admin/kcfinder/upload/files/ripekazib.pdfIn PDF document text
    • https://p-yanagase.gorakuou.net/blog/upimg/jiseso.pdfIn PDF document text
    • http://contelex.it/userfiles/files/31763486475.pdfIn PDF document text
    • http://inruho.ru/ckfinder/userfiles/files/xulifezomitamadivixej.pdfIn PDF document text
    • http://mictrogiang.com/userfiles/files/zutafux.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 extracted file (font_00_sfnt_off0003db41.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003db41.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003db41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3DB41 16492 bytes
SHA-256: 5b29a0c9e490f9499c68b966521ce0d4d6718f748aa80d9eab35c96f9940133a
font_01_sfnt_off0004061d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4061D 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00041d3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41D3D 10576 bytes
SHA-256: a770b1c66e3a1184ca1ab4ddb05cadbeb4306c28a285fe18ee04f96bc2480c23