Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0cbb5ef4e8b3f07…

MALICIOUS

PDF

440.1 KB Created: 2022-03-29 13:52:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-02
MD5: 0798a868b2450d75c802860d14937efd SHA-1: 13e77f38bf468be26b4ea381caeb065d78fa2bad SHA-256: c0cbb5ef4e8b3f07b44687670d6a57ee0801844e4d7b930fa930b31c86f3f22d
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5149

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=tai+chi+24+forms+pdf PDF link annotation
    • https://areopag.ru/sites/default/files/uploads/vobewamasozatote.pdfIn PDF document text
    • https://karmak-makina.com/upload/files/49271893744.pdfIn PDF document text
    • http://liga-stf.ru/i/upload/files/58818626589.pdfIn PDF document text
    • http://zekidilektekstil.com/images_upload/files/luparuduganimezufiwovini.pdfIn PDF document text
    • http://aorganboys.handyfriendship.com/upload/files/12855848432.pdfIn PDF document text
    • http://drdj.friend-match.com/upload/files/liwelidomi.pdfIn PDF document text
    • http://vom-ragnaroek.de/uploads/file/21089191940.pdfIn PDF document text
    • http://goodslib.com/userfiles/file/29551637142.pdfIn PDF document text
    • https://beds.lifelinecenters.com/news_items/file/70735193746.pdfIn PDF document text
    • https://aristi-trap.com/upload/users/files/93802043606.pdfIn PDF document text
    • http://salman-is.com/userfiles/file/2417112833.pdfIn PDF document text
    • https://u-bal.com/uploads/files/lojofitevetazoletazaxaje.pdfIn PDF document text
    • https://dukupahit.com/contents/files/dasiwudepo.pdfIn PDF document text
    • http://klm-co.ru/foto/ck/files/kafinegagitas.pdfIn PDF document text
    • http://derivat.sk/files/64350836528.pdfIn PDF document text
    • http://talk200.com/admin/admin/uploadfiles/file/39141822292.pdfIn PDF document text
    • http://www.cabinet-pollet-lille.fr/img/uploaded/file/nubowakofu.pdfIn PDF document text
    • https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/neq7r7v74dvaiuanau46ekkvg3/46661134196.pdfIn PDF document text
    • http://grotech.in/userfiles/file/podezuvulotasugutukilelaj.pdfIn PDF document text
    • http://privatmajo.sk/upload/files/rusebakagenububudomib.pdfIn PDF document text
    • http://self119.net/upload/userfiles/2022/03/files/220324175133.pdfIn PDF document text
    • http://coomargroup.com/ckfinder/userfiles/files/46246886586.pdfIn PDF document text
    • https://cmottaviproductive.it/uploads/file/ninivefozalexoparutigo.pdfIn PDF document text
    • http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/162175a6f74ade---88799960844.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/162402df47d8a3---7719249444.pdfIn PDF document text
    • http://wimborst-ceramics.nl/ckeditor/ckfinder/userfiles/files/85966591927.pdfIn PDF document text
    • http://www.realisthotel.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fe6c072a13b---davebuvekelusokutima.pdfIn PDF document text
    • http://fine-trading-knotwork.com/uploads/media/vajiwovubenumejoxagurobi.pdfIn PDF document text
    • https://www.adira.co.id/assets/kcfinder/upload/files/mesusapelazekivepeduta.pdfIn PDF document text
    • https://mp2020.csysadmin.com/ckfinder/userfiles/files/28335256518.pdfIn PDF document text
    • https://r4binsh4h9-att.com/contents/files/xudifanana.pdfIn PDF document text
    • https://www.kazaviaspas.kz/app/webroot/js/kcfinder/upload/files/kuraxototapakiwuxenopow.pdfIn PDF document text
    • http://villacappuccina.com/userfiles/files/55452551081.pdfIn PDF document text
    • https://maxflowfans.com/userfiles/file/43101790178.pdfIn PDF document text
    • http://mrspk.com/ckfinder/userfiles/files/64453638858.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_off0006745a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0006745a.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006745a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6745A 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00068b75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68B75 17044 bytes
SHA-256: b97ccd2ca21f994116d7baea49e3ac54cd16ff2c8d277593f6ba4bb5e7c51972
font_02_sfnt_off0006b77f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B77F 10668 bytes
SHA-256: b234ee07da7bf9f7ed8a6ff99474979f929e87c55fd39df2125031096ffdfb5f