Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8cb6c048275948…

MALICIOUS

PDF

349.8 KB Created: 2022-02-14 09:46:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: e9977389380710f172586124f76f613b SHA-1: bea97f73c63b9d46bfb42ecb285e0efc40dba250 SHA-256: 5d8cb6c048275948a0d586ffc3a1600b5c946eb0e3042b9609e52e2040d225ba
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6782

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://yoyep.co.za/XSRYdR1H?utm_term=androidx+recyclerview+kotlin PDF link annotation
    • http://yogaschoolofkerala.com/photos/editor/files/dasaxojarasaworunakakipaf.pdfIn PDF document text
    • https://www.hotel-palladium.gr/wp-content/plugins/super-forms/uploads/php/files/4u7ql456lf1daikq57r3b40ddu/70403489773.pdfIn PDF document text
    • https://bk.elbasyacademy.kz/vendor/admin/kcfinder/upload/files/jenorawewepawasiwevu.pdfIn PDF document text
    • http://baldonimarcostudio.eu/userfiles/files/36434548373.pdfIn PDF document text
    • http://zenithmetals.com/files/magaw.pdfIn PDF document text
    • http://gesht.ru/admin/ckfinder/userfiles/files/36820899838.pdfIn PDF document text
    • http://www.tecnologycenter.com/admin/uploaded/fck/file/lesurunikeduwunom.pdfIn PDF document text
    • http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/16209f70e9ff27---71817730261.pdfIn PDF document text
    • http://arlingtonhigh1960.com/clients/881088/File/86851379030.pdfIn PDF document text
    • https://quatden.vn/webroot/img/files/gojijevidi.pdfIn PDF document text
    • http://birizgardenhotel.com/userfiles/file/17890769481.pdfIn PDF document text
    • https://yp05.com/_UploadFile/Images/file/67617921237.pdfIn PDF document text
    • http://riverla.vn/uploads/userfiles/file/xorulug.pdfIn PDF document text
    • https://myreply.mobi/snappshott/editor//file/43527612516.pdfIn PDF document text
    • http://richfield1960.com/clients/865265/File/wegisudixewunowunix.pdfIn PDF document text
    • http://stkvn.ru/wp-content/plugins/super-forms/uploads/php/files/fbbcda3c09a836580e399862a19601ab/zipalapozugo.pdfIn PDF document text
    • http://beergolfers.com/blog/images/file/zolufapaku.pdfIn PDF document text
    • http://clubselectionvoyages.com/images/file/zavimazinirivanadesub.pdfIn PDF document text
    • http://photou.cc/ckfinder/userfiles/files/totejalud.pdfIn PDF document text
    • http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/253cdc4f0d9fdb294bad27f55df1be4a/31193447802.pdfIn PDF document text
    • https://mjrspot.com/fckimages/file/jevumuk.pdfIn PDF document text
    • http://sipzip.com/userfiles/file/muwaxoretujajavaxa.pdfIn PDF document text
    • http://edilcfcostruzioni.com/userfiles/files/52029104973.pdfIn PDF document text
    • https://haltia.mx/sii/ckfinder/userfiles/files/93709998493.pdfIn PDF document text
    • http://alibabashipping.com/userfiles/file/benevenugazubaxuzabow.pdfIn PDF document text
    • https://vnjhanoi.com/upload/files/91510017029.pdfIn PDF document text
    • http://seritour.com/rsm/files/texivop.pdfIn PDF document text
    • http://mn-print.ru/ckfinder/userfiles/files/76445635351.pdfIn PDF document text
    • https://altinone.cz/files/ckfiles/file/vedapadutuba.pdfIn PDF document text
    • http://tubesealer.com/uploaded/file/11036189836185d3ab1159d.pdfIn PDF document text
    • http://demo-jesma.shopcloud.es/ckfinder/userfiles/files/45787988539.pdfIn PDF document text
    • https://manuscripthandler.com/userfiles/file/46287235662.pdfIn PDF document text
    • http://vaynhe.com/upload/files/39598343492.pdfIn PDF document text
    • http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/161d4dec3194ea---xidisalexomasu.pdfIn PDF document text
    • https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/dcd3f2f7dcefd31566fc2c7fe33779dd/89495142887.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_off0005044b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5044B 10472 bytes
SHA-256: a4a3596e61f7008cf832f94f262e7e25af219010a423c41b1c77841d0a695b45
font_01_sfnt_off00051c3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51C3A 19812 bytes
SHA-256: 3a1db29186f3f14b0099563b03d529f2cf756573b13d075a653c3425822decad
font_02_sfnt_off00055034.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55034 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9