Malicious PDF — malware analysis report

Static analysis result for SHA-256 88b3d66498ada342…

MALICIOUS

PDF

539.0 KB Created: 2022-02-05 05:55:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-02
MD5: db36f40938beaabbcd7f846c1de81cfd SHA-1: c5b8f9e5bc824c2b33da48dc0b1181d9ac77e54b SHA-256: 88b3d66498ada342efae9479f11922482b33505827aaef663c59cab41e597221
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3400

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://podar.co.za/XSRYdR1H?utm_term=magazine+front+cover+template+psd PDF link annotation
    • https://moulindelarroque.com/userfiles/file/47505399055.pdfIn PDF document text
    • http://stroisvias.ru/userfiles/file/62262081542.pdfIn PDF document text
    • https://sardavetri.it/userfiles/file/jugisa.pdfIn PDF document text
    • http://sp3siemianowice.pl/userFiles/files/26530829463.pdfIn PDF document text
    • https://arhiapp.web-idea.ro/app/webroot/files/userfiles/files/26214955316.pdfIn PDF document text
    • http://alisawedding.com/upload/users/files/92023652553.pdfIn PDF document text
    • https://dedywiredja.com/wp-content/plugins/formcraft/file-upload/server/content/files/16192ce175b266---leganepexubiposores.pdfIn PDF document text
    • http://szybkieprawko.pl/szybkieprawko.pl/user/admin/fck/file/wagubanajoraveno.pdfIn PDF document text
    • https://propage.q-cloud.net/upload/ckeditor/pages/files/peludesupupisemukobowosad.pdfIn PDF document text
    • http://hrudolf.com/userfiles/verux.pdfIn PDF document text
    • http://originalavto.ru/userfiles/file/towatapinobezopevujiror.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16198e858c0ff6---nuboj.pdfIn PDF document text
    • https://md-bud.pl/szklo/photos/file/mujexanolamexedesakalexub.pdfIn PDF document text
    • http://kutyasturak.hu/images/files/45675700967.pdfIn PDF document text
    • http://kxqcgs.net/filespath/files/20210816151536.pdfIn PDF document text
    • http://metall-press.ru/files/tenojinelu.pdfIn PDF document text
    • http://piscesappliances.com/userfiles/file/silumelipevu.pdfIn PDF document text
    • http://globalone-mould.com/gbw/fckfiles/20220123072647.pdfIn PDF document text
    • http://allier.proximeo.com/ckfinder/userfiles/files/55196665997.pdfIn PDF document text
    • https://yakin-surewin.com/media/file/mulobevumotudubob.pdfIn PDF document text
    • http://peknanevesta.sk/media/file/8044214016.pdfIn PDF document text
    • http://tai-group.com/upload/files/23352039173.pdfIn PDF document text
    • http://sergeybazarov.ru/file/vubeferisofutejixo.pdfIn PDF document text
    • http://greenhere.cn/upload/ckimg/files/202202041309087303.pdfIn PDF document text
    • https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161a09e0a27e0c---41422265090.pdfIn PDF document text
    • http://zhfangyuan.com/uploadfiles/files/xexorupabaz.pdfIn PDF document text
    • http://alemotta.com/resources/original/file/41808127358.pdfIn PDF document text
    • http://ovecollection.com/royal/admin/images/products/file/33719448999.pdfIn PDF document text
    • http://studiodabo.eu/userfiles/files/91850717587.pdfIn PDF document text
    • http://www.jindatunnel.com/up_files/file/rivizanefogu.pdfIn PDF document text
    • https://pasifikendustriyel.com/userfiles/file/tenimebajugiroj.pdfIn PDF document text
    • https://xn--80apefbdm9ah5g.xn--p1ai/userfiles/15770758385.pdfIn PDF document text
    • https://masteranalog.com/userfiles/file/5084819384.pdfIn PDF document text
    • http://printific.com/images/contentimages/files/zonopufokirowisaxuzokad.pdfIn PDF document text
    • http://patriabrno.cz/userfiles/files/jileg.pdfIn PDF document text
    • https://fkip.unsam.ac.id/kcfinder/upload/files/5029603168.pdfIn PDF document text
    • https://luxm.pl/userfiles/file/2888939942.pdfIn PDF document text
    • http://barudan.hk/UploadFile/file/20211023191231009.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_off0008012f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0008012f.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0008012f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8012F 16340 bytes
SHA-256: 3a5619df14755b0e83e73fa8316854288ed3f1a6aeec83feecdd54f81b048ebd
font_01_sfnt_off00082b2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82B2C 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0008424c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8424C 11084 bytes
SHA-256: a55fa2ee78caa565aeec11ffcda7d535682a0098f8cd27071dbcd8dd8108698e