Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2860670691939a…

MALICIOUS

PDF

381.5 KB Created: 2022-01-23 12:45:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 166dc8a9a11ae71ffb8f0e571ea8283a SHA-1: 2154b9c825c937a70e4c4554d49ce6c2b8bf95bf SHA-256: af2860670691939ac0acd361dc713561157eb0905ffc1c7a705f8d96385f270b
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6448

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://queure.ru/uplcv?utm_term=animated+cartoon+pics+for PDF link annotation
    • http://clubcalidad.pfsgrupo.com/formacion/profesores/userfiles/file/siwemaxovitufe.pdfIn PDF document text
    • http://polishedskincare.com/minaret/uploads/file/82760003589.pdfIn PDF document text
    • https://costabravas.com/uploads/localidades/files/sofediwuxokizeje.pdfIn PDF document text
    • http://aromaonly1.com/yamituki-n/uploads/files/18089983816.pdfIn PDF document text
    • http://bugaboo-buffalo.eu/UserFiles/File/15077359788.pdfIn PDF document text
    • https://moolans.com/uploads/files/xozarifixiduvalilojena.pdfIn PDF document text
    • http://bilcafe.it/userfiles/file/lopafinididevuzen.pdfIn PDF document text
    • https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161b50d3ea9dd1---15657141120.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16188da1e4fd14---52916719212.pdfIn PDF document text
    • http://aid-calais.com/userfiles/file/37379750607.pdfIn PDF document text
    • http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16158b9f151360---43676454034.pdfIn PDF document text
    • https://confidence-ist.com/ckfinder/userfiles/files/fagovamefazad.pdfIn PDF document text
    • http://www.bennex.co.th/assets/kcfinder/upload/files/xeritonivese.pdfIn PDF document text
    • http://iscyber.com/userfiles/files/4509302228.pdfIn PDF document text
    • http://transporteslaplata.com/imagenes_web/file/fepemulofonofumisufotofok.pdfIn PDF document text
    • http://ardennes.proximeo.com/ckfinder/userfiles/files/jovodurisalokezapebomoda.pdfIn PDF document text
    • https://taperagi.com/contents/files/5470082169.pdfIn PDF document text
    • http://www.asap-recruitment.net/upload/file/sofelutex.pdfIn PDF document text
    • http://integrotech.pl/zdjecia/file/98403296150.pdfIn PDF document text
    • https://nulifeus.com/~nulife/userfiles/file/17616390539.pdfIn PDF document text
    • http://thegioidahoacuong.com/uploads/image/files/39697288361.pdfIn PDF document text
    • http://cableesmaltado.com/d/files/97922017006.pdfIn PDF document text
    • http://birons.net/wp-content/plugins/super-forms/uploads/php/files/286a4f86b45b601bd5c625b79dadeb19/66811886817.pdfIn PDF document text
    • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/ce6a125c829358c11b9971f7e3a3710f/24606369691.pdfIn PDF document text
    • http://csptech.net/admin/userfiles/file/makoxaluminixexamotabupa.pdfIn PDF document text
    • http://studiopol.com/userfiles/files/muzusar.pdfIn PDF document text
    • http://ccadl.com/files/20210927024921.pdfIn PDF document text
    • https://karolinanowak.com/userfiles/file/rixusowivuwalasaziloziz.pdfIn PDF document text
    • http://afro-safari.com/upload/files/32291152626.pdfIn PDF document text
    • http://perfekt-dom.pl/designhome/admin/userfiles/file/63939691925.pdfIn PDF document text
    • http://stsaischoolamritsar.com/slbdavbatala/userfiles/file/mejuxuwobupiko.pdfIn PDF document text
    • http://harnettcountyhba.com/userfiles/file/xizidor.pdfIn PDF document text
    • http://cambridgekapurthala.com/damana/userfiles/file/luxowapegosefezidalo.pdfIn PDF document text
    • https://dgssu.com/upfolder/e/files/20211206123119.pdfIn PDF document text
    • http://simonide.org/userfiles/file/14338550013.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_off00058c86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58C86 10716 bytes
SHA-256: 548698d401636034238665f08b364979c1ba6d4fe2cbb8d7742dc571d8c3b98f
font_01_sfnt_off0005a51a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A51A 16592 bytes
SHA-256: 1b554fdad7f4aa3695a3372509bcbf499ae87b219a6fff11e2f9efc9f6d02990
font_02_sfnt_off0005cfd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CFD7 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336