Malicious PDF — malware analysis report

Static analysis result for SHA-256 445f2bbdd030783c…

MALICIOUS

PDF

391.5 KB Created: 2022-03-02 06:06:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 0c1279c360d3871b6a936def9b8866b7 SHA-1: d1359e1aed19a8e07eea9aa3b3468470ec4817a3 SHA-256: 445f2bbdd030783cc3553b5c2e7b03d444851788d8fe3dade90010e07eb7a383
166 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links pointing to compromised WordPress upload storage and SEO redirectors, which are indicative of a phishing campaign. The ClamAV detection and ML classifier further support its malicious nature. The embedded URLs are likely used to lure victims into downloading further malicious content or visiting phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6197

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://lazav.co.za/XSRYdR1H?utm_term=coca+cola+nigeria+annual+report+2018 PDF link annotation
    • http://hit-air.pro/ckfinder/userfiles/files/karukuwalef.pdfIn PDF document text
    • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/fc389c86973051c5c05c6ff239bb395b/89403342885.pdfIn PDF document text
    • http://kashima.cc/userfiles/file/ruvapabazusabibikitomig.pdfIn PDF document text
    • https://alfalahmedical.org/c_panel/ckeditor1/ckeditor/kcfinder/upload/files/jodiletitakinonoj.pdfIn PDF document text
    • https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/0fb7719791901b5c635245aa3e1c9662/wobumifodu.pdfIn PDF document text
    • http://www.forsheda.se/admin/kcfinder/upload/files/28765597945.pdfIn PDF document text
    • http://aranykoronakft.hu/userfiles/file/getonezarufizubuwoni.pdfIn PDF document text
    • https://sca-eagleegg5k.com/ckfinder/triplebuserfiles/file/zeres.pdfIn PDF document text
    • http://elai.kz/upload/2022/02files/220218145123406991shffd.pdfIn PDF document text
    • https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/161fc5cc318227---pemisuzogatoxajunonuz.pdfIn PDF document text
    • https://centralcms.coodex.net/galeria/files/xugepuzexajapab.pdfIn PDF document text
    • http://bilasiparacollege.org/assets/kcfinder/upload/files/61468517842.pdfIn PDF document text
    • http://entwuerfe.premo.at/userfiles/file/16795951524.pdfIn PDF document text
    • http://copy-office.it/userfiles/file/5749908783.pdfIn PDF document text
    • http://kovacsoltvaskerites.hu/images/file/13093076737.pdfIn PDF document text
    • http://nachhilfeschule.havonix.com/ckfinder/userfiles/files/12909757427.pdfIn PDF document text
    • http://h-n-s.net/userfiles/file/69731799163.pdfIn PDF document text
    • https://futurefacesmiami.com/uploads/file/gixodiwagozogiperatival.pdfIn PDF document text
    • http://ithalattagarantibelgesi.com/resimlerfiles/34570912346.pdfIn PDF document text
    • http://mhzsolutionz.com/userfiles/file/misawadamu.pdfIn PDF document text
    • http://fd-health.com/upload/ckeditor/files/87705108775.pdfIn PDF document text
    • http://wittsend.com/userfiles/file/41530120541.pdfIn PDF document text
    • http://bluebiz.kr/userData/board/file/nerinuwipopo.pdfIn PDF document text
    • http://prvugkh.ru/uploads/files/11959526868.pdfIn PDF document text
    • http://ilsogno-bomboniere.com/userfiles/files/11506516432.pdfIn PDF document text
    • https://www.bookings.gulfstarsports.com/admin/kcfinder/upload/files/kuriduwexiga.pdfIn PDF document text
    • http://www.glutec.it/_admin/kcfinder/upload/files/38267475001.pdfIn PDF document text
    • http://rosspeed.com/kcfinder/upload/files/48123818315.pdfIn PDF document text
    • https://feniks9.ru/ckfinder/userfiles/files/52944927285.pdfIn PDF document text
    • http://2safe4u.cz/UserFiles/File/detivebikodituwatewirisu.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_off0005aa7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AA7D 11012 bytes
SHA-256: 0921775d24108d37a8763b8c1d5bf922d8c32442a94fadc96ea76141fa73387d
font_01_sfnt_off0005c44a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C44A 19756 bytes
SHA-256: 9f56925977010302332bb5d29e8a978a864baf98e321ad81ca0c9916ad525235
font_02_sfnt_off0005f7a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F7A3 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9