Malicious PDF — malware analysis report

Static analysis result for SHA-256 4afcfadfaee73712…

MALICIOUS

PDF

361.8 KB Created: 2022-03-15 20:59:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 3b865fc8b6644de10671d1d4092b7828 SHA-1: e18961fc9895bdffa42ca5cdd53d416b6ebbb250 SHA-256: 4afcfadfaee73712c4c224b62679b741b6e202e964a325209aa48ef16ecfa78b
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6782

Heuristics 7

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://lovig.co.za/XSRYdR1H?utm_term=mcgraw+hill+math+6th+grade+answers PDF link annotation
    • http://fuerst-architects.com/uploads/file/53363807866.pdfIn PDF document text
    • http://conflictfreeelectronics.com/ourprojects/chowki/UserFiles/renuka/file/96871922005.pdfIn PDF document text
    • https://rugsdirect4u.com/uploadedfiles/file/33224121250.pdfIn PDF document text
    • https://foursservices.com/nbloom/fckuploads/file/73980741968.pdfIn PDF document text
    • https://dermatologie-francophone.com/userfiles/file/jekewoxenizebisodezov.pdfIn PDF document text
    • http://lasantitosrestaurant.com/userfiles/file/95155993036.pdfIn PDF document text
    • http://usateatop.com/_upload/files/jetiforadowupiluna.pdfIn PDF document text
    • http://smolensk-bakaleya.ru/userfiles/file/80539907379.pdfIn PDF document text
    • http://esrafisek.com/images_upload/files/nufofinuxobi.pdfIn PDF document text
    • http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161fb68db815c1---66478154115.pdfIn PDF document text
    • https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/162214ac5997e0---xidemokaradofuwu.pdfIn PDF document text
    • http://express-service-auto.fr/ckeditor/ckfinder/userfiles/files/bafeguz.pdfIn PDF document text
    • https://giyimkent.formenemlak.com/upload/ckfinder/files/93705349645.pdfIn PDF document text
    • http://testplanet.nl/uploads/files/53355769250.pdfIn PDF document text
    • http://autolubitel-irk.ru/userfiles/file/88596605409.pdfIn PDF document text
    • http://www.winnicajanowice.pl/kcfinder/upload/files/jewibe.pdfIn PDF document text
    • http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622590ef952a6---72378699032.pdfIn PDF document text
    • http://admin.accf-asean-china.com/assets/grocery_crud/texteditor/kcfinder/upload/images/files/26617252677.pdfIn PDF document text
    • http://kmkonsult.cz/userfiles/file/52421743093.pdfIn PDF document text
    • http://kibbkw.com/uploads/files/4757172628.pdfIn PDF document text
    • http://finchamauto.com/pics/25413685939.pdfIn PDF document text
    • https://macleanpinesdrivingschool.com.au/wp-content/plugins/super-forms/uploads/php/files/2eda4ba15638a2555b9ae24ebb3406f2/48778213859.pdfIn PDF document text
    • https://solturism.ro/images/file/dukixasexe.pdfIn PDF document text
    • http://help-avocat.fr/js/kcfinder/upload/files/sovomezelute.pdfIn PDF document text
    • https://krassimirtaskov.com/userfiles/files/49052943265.pdfIn PDF document text
    • https://btsis.com/upload/ckfinder/files/dagadorakanis.pdfIn PDF document text
    • http://aptwash.com/userData/ebizro_board/file/lozadesominumaxod.pdfIn PDF document text
    • http://6461737.ru/upload/files/4803528248_1646854346.pdfIn PDF document text
    • http://tt-ural.su/admin/ckfinder/userfiles/files/44407950288.pdfIn PDF document text
    • https://kotypsy.pl/ckfinder/userfiles/files/gixunakixanupa.pdfIn PDF document text
    • https://cgb-echafaudage.fr/upload/files/46027601108.pdfIn PDF document text
    • http://hlqh.net/userfiles/file/20220207164503_1896475845.pdfIn PDF document text
    • http://www.sudeshnamaulik.com/fckimages/file/mujoku.pdfIn PDF document text
    • http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/1622c1b418ddce---kepeverolala.pdfIn PDF document text
    • http://ominocoibaffi.it/userfiles/files/belekupusix.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_off00053754.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53754 18232 bytes
SHA-256: 778e12e12910680e98fdd49f365aa333c0cd496204a4d63d0ef98106278463bb
font_01_sfnt_off0005674c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5674C 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00057e6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57E6C 10944 bytes
SHA-256: b5b54f256cdda0a6aacfc25520fb3ee63e7b2f9dd9888d6f58c515c46d33f892