Malicious PDF — malware analysis report

Static analysis result for SHA-256 d07681395d3786cc…

MALICIOUS

PDF

811.5 KB Created: 2022-03-08 14:45:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-07
MD5: 0655b2ea7dd4d100ee67e4a25548f138 SHA-1: f8f9f60ae5951b605aa10fade9de4890d3b7a8be SHA-256: d07681395d3786ccb86bd09e0998e1522f480c25674f816eff6a5229f0a00594
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV and exhibits characteristics of a phishing lure. It contains multiple embedded URLs, with a high-priority heuristic indicating a link farm pointing to compromised WordPress upload storage, likely serving as a distribution point for malicious content. The presence of UTM parameters in one of the primary URLs suggests a targeted phishing campaign.

Machine Learning

  • Nyx PDF Classifier clean score 0.1381

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://sunuf.co.za/XSRYdR1H?utm_term=boneless+skinless+chicken+breast+sheet+pan+recipes PDF link annotation
    • http://silverk.ru/img/lib/file/jatosibumaped.pdfIn PDF document text
    • http://www.teeintact.com/admin/fckeditor/editor/filemanager/connectors/php/img/file/34383737691.pdfIn PDF document text
    • https://markmont.eu/editor_uploads/system/files/47318252945.pdfIn PDF document text
    • http://alde-pace.org/ckfinder/userfiles/files/96645983238.pdfIn PDF document text
    • http://brlairport.com/images/file/lofanalorituzimin.pdfIn PDF document text
    • http://saoz.sk/assets/kcfinder/upload/files/35064254406.pdfIn PDF document text
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/162174a08d84b0---95357913494.pdfIn PDF document text
    • http://phuvuongcorp.com/luutru/files/4557073613.pdfIn PDF document text
    • http://pacemakerpressintl.com/uploads/assets/file/puguvenirikidi.pdfIn PDF document text
    • https://www.t-med.kz/app/webroot/js/kcfinder/upload/files/38988014573.pdfIn PDF document text
    • http://ark-mr.com/data/home/qxu2063190031/htdocs/uploadfile/files/91404610989.pdfIn PDF document text
    • http://marsalanoleggio.it/userfiles/files/xubisanirabokuse.pdfIn PDF document text
    • https://pomtco.com/technical/files/file/mojamiravepige.pdfIn PDF document text
    • https://xn--80aujdnb8a.xn--p1ai/kcfinder/upload/files/26678473400.pdfIn PDF document text
    • http://waxiangyuan.com/upload_fck/file/2022-3-2/20220302002249914186.pdfIn PDF document text
    • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/16210614ae39ac---nigojufowow.pdfIn PDF document text
    • http://vnpt247.com/ckeditor/kcfinder/upload/files/99344408853.pdfIn PDF document text
    • https://ldcpc.com/ckfinder/userfiles/files/5071434415.pdfIn PDF document text
    • http://ned.ru/uploads/files/16168180926.pdfIn PDF document text
    • https://www.edaas.com.tr/admin/kcfinder/upload/files/mabis.pdfIn PDF document text
    • http://villahetzwartepaard.nl/survey/userfiles/files/vavojipisariterulusi.pdfIn PDF document text
    • http://revtechnik.cz/userfiles/file/kumikipelirowu.pdfIn PDF document text
    • http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620aa54e8a886---90601332914.pdfIn PDF document text
    • http://sallytour.com/FileData/ckfinder/files/20220223_36753682717F3950.pdfIn PDF document text
    • http://abevenement.com/kcfinder/upload/files/rudunos.pdfIn PDF document text
    • https://jobtiara.com/files/files/xavinifefod.pdfIn PDF document text
    • http://soles2walk.com/data/file/67977523332.pdfIn PDF document text
    • https://scalper.ir/data/files/file/24612920817.pdfIn PDF document text
    • https://patoman.ro/ckfinder/userfiles/files/54551124153.pdfIn PDF document text
    • https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/16209374d21d8f---56113479595.pdfIn PDF document text
    • http://isuzuphonoi.com/data/dulieu/files/40138073631.pdfIn PDF document text
    • http://kawarulabo.com/app/webroot/js/kcfinder/upload/files/lugupisawomodawabupibul.pdfIn PDF document text
    • https://trimix.bg/UserFiles/File/9474186648.pdfIn PDF document text
    • https://medicentrumnz.eu/medicentrum/files/file/68671271221.pdfIn PDF document text
    • http://amicissiapiemonteisa.it/userfiles/files/waviwemofosepufopirebotuz.pdfIn PDF document text
    • http://getsolarny.com/userfiles/file/favesoroja.pdfIn PDF document text
    • http://opusbiz.kr/data/editor/file/1813483656622174337f93a.pdfIn PDF document text
    • https://cakenepal.com/userfiles/file/86665596366.pdfIn PDF document text
    • http://ih-consultant.com/ckfinder/userfiles/files/fezizex.pdfIn PDF document text
    • http://giaphatmed.com/upload/file/33960831556.pdfIn PDF document text
    • https://creativesilhouettes.ca/wp-content/plugins/formcraft/file-upload/server/content/files/162103b341077b---xizuv.pdfIn PDF document text
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1620bcbf3cf933---tobuzevugenefu.pdfIn PDF document text
    • http://enovosti.info/ckfinder/userfiles/files/noterarekisoselu.pdfIn PDF document text
    • https://ataru.site/js/ckfinder/userfiles/files/dimuxodosigikemonolat.pdfIn PDF document text
    • http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/kmede0ddk1gto3m4eart16jgs6/bevotoruziwusagaxoz.pdfIn PDF document text
    • http://www.akutrans.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fd54ad6094f---59297662901.pdfIn PDF document text
    • https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/94f9bf8c3e28fad682b5ce9f2ac629a2/52317605270.pdfIn PDF document text
    • http://wronba.com/uploads/wysiwyg/file/jezetudetufefufudifetabo.pdfIn PDF document text
    • http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/16210c24d9bb8d---zilapujowimidajixudejujab.pdfIn PDF document text
    +8 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000c3e60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3E60 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off000c5582.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5582 10756 bytes
SHA-256: c1aeb502afb8c5c959f624c860da356e6953e474a147988caff2756ddae55299
font_02_sfnt_off000c6e03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6E03 18116 bytes
SHA-256: 7ac76c5f48615f58a650fc5ed3c2da1b7997feaaad0c8be06d655850111763a2