Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7d134f9ea3f9d4c…

MALICIOUS

PDF

205.0 KB Created: 2022-03-19 20:10:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-27
MD5: 904ec8f6239f77990b6047360db93487 SHA-1: a7fb9fb21ba56745d9f2147fce3daea625fa0fd2 SHA-256: c7d134f9ea3f9d4ca70a122d882e7c12af628cdac92ad7117001e3a0e0c6c554
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8230

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://viaecommerce.com.br/kcfinder/upload/files/xukalokaxurediwuj.pdf In PDF document text
    • http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/1623119100e732---lomaki.pdfIn PDF document text
    • http://croepi.ch/app/webroot/kcfinder/upload/files/88822202767.pdfIn PDF document text
    • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/02uomdvh4q858pgp0sc3e7ndc5/7884672700.pdfIn PDF document text
    • https://oriontradecom.com/ckfinder/userfiles/files/73599399343.pdfIn PDF document text
    • http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16229725588111---58869061239.pdfIn PDF document text
    • https://dukupahit.com/contents/files/rukuvuxuk.pdfIn PDF document text
    • http://otelm4b.ru/admin/ckfinder/userfiles/files/2208829145.pdfIn PDF document text
    • http://ingore.cn/upload/files/kubizowukeladedubuvo.pdfIn PDF document text
    • http://nhatngungoisaoxanh.com/upload/files/33360169840.pdfIn PDF document text
    • http://xn--aknmedcal-wpbe.com/uploads/file/92568993895.pdfIn PDF document text
    • http://startent.ru/SITE/files/editor/file/gajusevesobemaj.pdfIn PDF document text
    • https://conrays.ru/f/data/sipakibavebukosukolozozu.pdfIn PDF document text
    • https://kimansion.com/uploads/file/nonapisetetofeserewojinu.pdfIn PDF document text
    • http://iproperty.ae/userfiles/file/3224053493.pdfIn PDF document text
    • http://angel-conference.org/upload_fck/file/2022-2-26/20220226165506158297.pdfIn PDF document text
    • https://www.tratedu.net/ssss2018/assets/143ad273/ckfinder/core/connector/php/upload/userfiles/files/4e60441f79f37d6a7aed6a3eacbe1320.pdfIn PDF document text
    • https://thuaphatlaihanoi.net/uploads/files/pokebamonokisazo.pdfIn PDF document text
    • http://briztravel.com/upload/files/78862147727.pdfIn PDF document text
    • http://stonebreaker.at/47147841480.pdfIn PDF document text
    • https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/1622d610dadd4a---tusipifamonebu.pdfIn PDF document text
    • http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1621d486d47e42---lukobakeboriparopuj.pdfIn PDF document text
    • http://dolekkoyum.com/admin/UserFiles/file/68307351997.pdfIn PDF document text
    • http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/16235867e39500---78941158627.pdfIn PDF document text
    • http://zjgjqmr.com/v15/Upload/file/202221645404650.pdfIn PDF document text
    • https://www.photosenpoesie.fr/ckeditor/kcfinder/upload/files/19768588731.pdfIn PDF document text
    • http://www.xpresswedding.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620036893755a---sobusuzotulike.pdfIn PDF document text
    • https://tecnomatec.cl/upload/file/lokekigame.pdfIn PDF document text
    • https://uat-tunisia.com/userfiles/file/dimiwipom.pdfIn PDF document text
    • https://lazav.co.za/XSRYdR1H?utm_term=ajax+logo+pngPDF 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_off0002c862.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0002c862.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002c862.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C862 18124 bytes
SHA-256: 5f3abf38a5c3da27fba96c0ba75487d741258e72e8491f4213f1349bf5e670a5
font_01_sfnt_off0002f7cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F7CF 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00030eef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30EEF 10048 bytes
SHA-256: 01f2db04c6bd2dc0acd9f2007cb1a1900ce584cc99734fbd5adee2911f153150