Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd296c2a8c02ab3…

MALICIOUS

PDF

406.5 KB Created: 2022-03-10 17:59:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: 639a74537b4088d2f47cf77b79713b18 SHA-1: 3c3e93048dd0baf6abc77594a86e3dac4a25c211 SHA-256: 3dd296c2a8c02ab313becd88ee5712d1272efd43a00c1e6486c4c7d2dd9104b4
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF sample contains embedded JavaScript and multiple external URIs, indicating it's designed to redirect users to malicious websites. The high-confidence heuristics and ClamAV detection confirm its malicious nature, likely serving as a phishing lure or a downloader for further malware. The embedded JavaScript is likely responsible for initiating the download or redirect process.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6022

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://cafij.co.za/XSRYdR1H?utm_term=no+one+answers+my+yahoo+questions PDF link annotation
    • https://servicio-mexico.com/images/file/pifujopetubojutegite.pdfIn PDF document text
    • http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1621d511634526---14840870513.pdfIn PDF document text
    • http://pokrowce-ochronne.pl/Upload/file/pulukofuramogirop.pdfIn PDF document text
    • http://csc-0411.com/userfiles/file/20220228030235_1zkr2k.pdfIn PDF document text
    • http://hurtmar.pl/Upload/file/21077488723.pdfIn PDF document text
    • http://mariancozma.com/_user/file/89901962204.pdfIn PDF document text
    • http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/315d9013b9c560bf49a987ee89d30732/3982018599.pdfIn PDF document text
    • http://change4best.ru/upload/file/89400229374.pdfIn PDF document text
    • http://www.ih-consultant.com/ckfinder/userfiles/files/japunoxulatenexegevek.pdfIn PDF document text
    • http://physio-praxismitte.de/userfiles/zavejawazig.pdfIn PDF document text
    • https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/r71c0igvs5nnrgvi0s3ghnvvcm/60016563133.pdfIn PDF document text
    • http://biopole-clermont.com/uploads/gestion_contenu/files/58275175284.pdfIn PDF document text
    • http://beslenkofte.com/panel/upload/files/43459322972.pdfIn PDF document text
    • https://absoger.bmv-communication.fr/uploads/files/86541085573.pdfIn PDF document text
    • http://www.kowel.com/ckfinder/userfiles/files/1645124160.pdfIn PDF document text
    • http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/16221cb3d63b33---93617948088.pdfIn PDF document text
    • https://dfkcnc.shopper-store.net/file/files/51353881765.pdfIn PDF document text
    • http://evo-models.com/uploads/userfiles/files/91158003988.pdfIn PDF document text
    • https://firstview.christoff-design.com/files/modumo.pdfIn PDF document text
    • https://chiuman-hk.com/images/file/31728281808.pdfIn PDF document text
    • https://intimtreningdebrecen.hu/frontend/ck/kcfinder/upload/files/pofugubikobukeribifidowi.pdfIn PDF document text
    • https://lenaoyunlar.com/calisma2/files/uploads/tuzajonajeworibob.pdfIn PDF document text
    • https://grup-rul.ro/printuri-fi/files/89328447614.pdfIn PDF document text
    • http://xn----8sbfhu6ab4bqv.xn--p1ai/userfiles/file/wejuxupinamef.pdfIn PDF document text
    • http://www.gesas.it/media/mailinglist/file/rerorosijorog.pdfIn PDF document text
    • http://123podkrovie.sk/editor_uploads/files/49278544121.pdfIn PDF document text
    • https://www.kidilangues.fr/js/kcfinder/upload/files/tapolelefivuzojoge.pdfIn PDF document text
    • https://greshamgilessalon.com/wp-content/plugins/super-forms/uploads/php/files/4d3abaab78fccd4104a7842a862da887/sivowifax.pdfIn PDF document text
    • http://ekorob.pl/userfiles/file/68224177855.pdfIn PDF document text
    • https://balatonfurediallatorvos.hu/userfiles/file/naguviruk.pdfIn PDF document text
    • http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/3v6j110crk5pdqtnhhp1b4n195/wotopikepesef.pdfIn PDF document text
    • https://aradovan.com/userfiles/file/24445613997.pdfIn PDF document text
    • https://ecableapp.com/FCKeditor/FCKimgUpload/file/tigukoresupabara.pdfIn PDF document text
    • http://udemadriatic.com/userfiles/files/43327600359.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005c8d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C8D5 22132 bytes
SHA-256: ece88be67fc8716ee9a59098aa532c937d0bd77071ca8e5e91eb33f70dc5585c
font_01_sfnt_off00060395.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60395 16160 bytes
SHA-256: 4ac500d6e3c0ff81b9d7bba6b662cc1b6c57f4f8b05facc13edcda647588841f
font_02_sfnt_off0006190d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6190D 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_03_sfnt_off0006302e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6302E 10748 bytes
SHA-256: bd64bd73e8ae10b2d3b9dba9ae33c7c85702383c9cbbe0fe08f16ea796153ead