Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7cfcd2fc2f48887…

MALICIOUS

PDF

318.3 KB Created: 2022-02-23 12:38:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-22
MD5: 1a2113825eae98476bbc05fe62b28154 SHA-1: 3bd952c7bfddf6903ca5668c81b69b660ccc33ca SHA-256: e7cfcd2fc2f48887559b97091b4ecf6a61e4efc3400eca51737e4112df39c93e
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7158

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://realcomfort.ru/content/upload/file/27717774321.pdf In PDF document text
    • https://hyosung-gulf.com/uploads/file/45456002603.pdfIn PDF document text
    • http://op-gold.com/ck_image/files/biwow.pdfIn PDF document text
    • http://ibrahimalsada.com/pics/file/86789997978.pdfIn PDF document text
    • http://mega-stainlesssteel.com/uploads/image/files/58705902200.pdfIn PDF document text
    • https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/161dc1efbb7f6e---82795476436.pdfIn PDF document text
    • https://doctmcooper.com/userfiles/files/27007175683.pdfIn PDF document text
    • https://thehouseproduction.net/file/59244594747.pdfIn PDF document text
    • http://karthikeyanjayaram.in/userfiles/file/52666759704.pdfIn PDF document text
    • http://avtokapriz42.ru/userfiles/file/94773573820.pdfIn PDF document text
    • https://soechi.com/userfiles/file/68172935653.pdfIn PDF document text
    • https://bolahijau.com/contents/files/9090937216.pdfIn PDF document text
    • https://www.barrau-philippe-sedeco.fr/ckfinder/userfiles/files/610278699.pdfIn PDF document text
    • http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/16186bc1f006e5---muwirub.pdfIn PDF document text
    • http://avatars.ru/userfiles/file/xivokaxuginixuboba.pdfIn PDF document text
    • http://wellgroup.cz/UserFiles/File/94953292809.pdfIn PDF document text
    • https://amd-export.com/site/upload/file/13072759949.pdfIn PDF document text
    • http://tao-ssct.org/data/upload/file/56800256320.pdfIn PDF document text
    • http://carscaso.com/js/upload/files/muvozaweni.pdfIn PDF document text
    • http://arsvet.ru/img/upload/9373663484.pdfIn PDF document text
    • http://bayanairag.com/uploads/userfiles/files/73354502267.pdfIn PDF document text
    • http://ebara.com.hk/ckfinder/Zenith/userfiles/files/23912716517.pdfIn PDF document text
    • http://normandyclassof79stl.com/clients/e/e1/e16d7b8530e96d8d426d6b963c92b0b5/File/kalunabeti.pdfIn PDF document text
    • http://cgpharma.in/cote_dor_import/admin/ckfinder/userfiles/files/piriweje.pdfIn PDF document text
    • https://lrsinc.co/userfiles/file/xifajesinuwuxavupomorezav.pdfIn PDF document text
    • https://on-the-markmarketing.onthemarkmarketing.com/userfiles/file/14289671067.pdfIn PDF document text
    • http://honmamon-s.com/img_seminar/userfiles//file/vesixijasitudurusesoge.pdfIn PDF document text
    • http://electronicaindex.nl/images/uploads/16923627774.pdfIn PDF document text
    • http://mstreatmentadvances.com/userfiles/files/61157598693.pdfIn PDF document text
    • https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/1616657b4e6e9a---5119480367.pdfIn PDF document text
    • http://nuraski.pl/wsg/userfiles/gisekorimab.pdfIn PDF document text
    • http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160fd2c10df73b---timetevuwokikavaluboket.pdfIn PDF document text
    • http://fotocaroli.it/userfiles/files/viritiluxifurerilazu.pdfIn PDF document text
    • http://kimura-shihoshoshi.com/userfiles/file/53280257065.pdfIn PDF document text
    • http://dastone.ru/userfiles/file/5713156942.pdfIn PDF document text
    • https://wirut.co.za/XSRYdR1H?utm_term=ayuntamiento+de+merida+reportesPDF 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 extracted file (font_00_sfnt_off000487e7.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000487e7.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000487e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x487E7 10704 bytes
SHA-256: b5bb5c7c2bf99b442233d8e186e55dc801cbe39f79c6c4ef662e91292e944688
font_01_sfnt_off0004a07f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A07F 19028 bytes
SHA-256: 56582d75cf1a22e392c2c14379630766a02944a6214828fea1095ca0f001591d
font_02_sfnt_off0004d04d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D04D 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9