Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca655d987ffc6264…

MALICIOUS

PDF

241.8 KB Created: 2022-02-24 06:48:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-07
MD5: 3ac9d0f512283e4585de986352888381 SHA-1: 9feca20ee2493155ce5409fff5112a7ecc293db8 SHA-256: ca655d987ffc62646c40b33c00c1bbdad36797fd519374c6c64fda734b288762
191 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7793

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.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://cafij.co.za/XSRYdR1H?utm_term=define+treatment.+choose+the+correct+answer+below PDF link annotation
    • http://www.icmtravel.net/assets/ckeditor/kcfinder/upload/files/bepowujipunozalirenafitis.pdfIn PDF document text
    • http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/161ef817e3a3a9---saluxu.pdfIn PDF document text
    • http://geotersrl.it/file/wiwoxoruwasuwuraxuf.pdfIn PDF document text
    • https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/160f7001f7443e---46482465159.pdfIn PDF document text
    • https://goez1.com/10005001208290177/ckfinder/userfiles/files/91401961686.pdfIn PDF document text
    • https://garraldaarquitectura.com/garralda_userfiles/files/80724500293.pdfIn PDF document text
    • https://hospitalsanfernando.cl/ckeditor/kcfinder/upload/files/xiderilonuzedek.pdfIn PDF document text
    • http://koopmankennedyfeller.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/67602609598.pdfIn PDF document text
    • http://alexandersorokolaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/62079356396.pdfIn PDF document text
    • http://teleprasowanie.pl/kcfinder/upload/files/89086675657.pdfIn PDF document text
    • https://bakkerijkamstra.nl/userfiles/files/waxadadowisezuvituluxutur.pdfIn PDF document text
    • http://geyuping.com/geyuping/uploadfile/file/2021081402422473499.pdfIn PDF document text
    • https://demowz.reikor.com/webimages/files/50307874880.pdfIn PDF document text
    • https://myagenda.myagenda.cz/pictures/editor/files/tesodukukisovatedesep.pdfIn PDF document text
    • http://ludothequelancy.ch/kcfinder/upload/files/62410508189.pdfIn PDF document text
    • http://wadsoda.com/UserFiles/File/56011863668.pdfIn PDF document text
    • http://erfaspot.com/resimler/files/1354007074.pdfIn PDF document text
    • http://7sate.com/filespath/files/20210823170831.pdfIn PDF document text
    • https://www.confirmedtour.com/files/vazanoseju.pdfIn PDF document text
    • https://sukienmiennam.com/userupload/files/lufaz.pdfIn PDF document text
    • https://www.cis2020.scrs.in/kcfinder/upload/files/66088561704.pdfIn PDF document text
    • http://www.fdconsult.qa/public/uploads/cms_files/37968165798.pdfIn PDF document text
    • http://muskogeeroughers1967.com/clients/9/98/9899c641331876fb313f08ec475a0443/File/77591693724.pdfIn PDF document text
    • http://mfcpavpos.ru/file/pafuzakev.pdfIn PDF document text
    • http://flooroverstock.com/admin/userfiles/file/gawisumafemepisob.pdfIn PDF document text
    • http://generale-bureautique.fr/gdb/files/file/vimag.pdfIn PDF document text
    • http://generale-bureautique.fr/gdb/files/file/nebumaxe.pdfIn PDF document text
    • http://easy-maker.biz/upload/files/85175204879.pdfIn PDF document text
    • https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/20eae583ac1058ef973cbaca60cc19da/41954102336.pdfIn PDF document text
    • http://pokorny-podlahy.cz/UserFiles/File/tizifovorudafif.pdfIn PDF document text
    • https://www.dogruadimlar.com/admin/production/ckeditor/kcfinder/upload/files/93070158173.pdfIn PDF document text
    • https://kluchar.net/klucharnet/images/file/87776427105.pdfIn PDF document text
    • http://creaorganization.com/depo/sayfaresim/file/59516272746.pdfIn PDF document text
    • https://thuaphatlaihoanghuy.com/uploads/files/komoga.pdfIn PDF document text
    • http://www.dereformasenalicante.com/archivos/files/75703850868.pdfIn PDF document text
    • http://exima.kr/userData/board/file/76040015818.pdfIn PDF document text
    • http://phubozena.pl/userfiles/file/janip.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 extracted file (font_00_sfnt_off000352f9.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000352f9.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000352f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x352F9 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00036a14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36A14 19132 bytes
SHA-256: b677c562b5aa56f322f4c65c88f68d4dfcb466a0cbf199e3fc9c19e8d1081066
font_02_sfnt_off00039c92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39C92 10892 bytes
SHA-256: 91ea1008b9f8259e605d1c61cb74db3db57e3b6b6b4ccfff4c788afc6e131577