Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0cb54d5d8c910d9…

MALICIOUS

PDF

246.3 KB Created: 2022-01-31 12:05:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-02
MD5: 7d51227f2523f1352a46e2d5461019ef SHA-1: 64b05337a9c21bbf4952ef409eba46c712054875 SHA-256: c0cb54d5d8c910d99a6fcfaea6056f87a0bfe9cfe07c15f0a56fbb96626383d1
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7927

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://yubit.co.za/XSRYdR1H?utm_term=bts+informatique+alternance+ile+de+france PDF link annotation
    • https://history.tlshaa.org.tw/ckfinder/userfiles/files/95493421077.pdfIn PDF document text
    • http://pasted-radio.de/web/files/kagarufirewilavij.pdfIn PDF document text
    • http://jyjwqj.com/uploadfile/file///2022012719463840.pdfIn PDF document text
    • http://vinhhangvien.com/upload/files/65114616148.pdfIn PDF document text
    • https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/58e3fd85a934b304ad592bf2f65bdcc8/wizadulupixulodazup.pdfIn PDF document text
    • https://pujabhandar.com/kcfinder/upload/files/mogob.pdfIn PDF document text
    • http://slotkuda.com/contents/files/segawisopikusewapux.pdfIn PDF document text
    • https://darman.shasbodco.com/UploadedFiles/New/file/92343087580.pdfIn PDF document text
    • http://sdtech-kh.com/kcfinder/upload/files/51873076722.pdfIn PDF document text
    • http://host.keraladreamhomes.com/~viswabrahmathach/admin/fckeditor/editor/filemanager/connectors/php/userfiles/file/24832004865.pdfIn PDF document text
    • http://exteractif.fr/pictures/2/28549119920.pdfIn PDF document text
    • http://kme-kme.cz/files/file/sepibikabofelosiwakerigo.pdfIn PDF document text
    • http://issaproject.com/app/views/panel/ckfinder/userfiles/files/29206093591.pdfIn PDF document text
    • http://bighost.vn/uploads/userfiles/file/jopinekogudejorupexawitad.pdfIn PDF document text
    • http://www.look4job.gr/images/_user_na/file/tufif.pdfIn PDF document text
    • http://kdesignuk.com/userfiles/files/3940723138.pdfIn PDF document text
    • https://komodovo.ru/upload_picture/56020393863.pdfIn PDF document text
    • http://studioagm.it/userfiles/files/92504600245.pdfIn PDF document text
    • http://osmed.cz/app/webroot/files/files/kibevirefodomekopofiwesi.pdfIn PDF document text
    • https://oriental-kitchens.com/userfiles/files/lifukurezifebix.pdfIn PDF document text
    • https://myleague.vn/uploadfiles/kcfinder/files/16210743104.pdfIn PDF document text
    • http://www.leinsterdancing.com/uploads/files/89619096669.pdfIn PDF document text
    • http://casavacanzesanvito.eu/userfiles/files/64178972973.pdfIn PDF document text
    • http://senkardeslerkereste.com/kcfinder/upload/files/64204046008.pdfIn PDF document text
    • http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/161a7658a75012---87340400486.pdfIn PDF document text
    • https://mirrorlink.com/public/files/files/bozobu.pdfIn PDF document text
    • http://nsk-nalogov.net/upload/files/muxekoranonowiz.pdfIn PDF document text
    • http://smenergy.kr/uploaded/file/82653830061711a80dee73.pdfIn PDF document text
    • http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161a67a9712e67---52680025166.pdfIn PDF document text
    • http://dentish.ru/ckfinder/userfiles/files/60201117150.pdfIn PDF document text
    • http://wcsps.com.tw/ckfinder/userfiles/files/timenagulajud.pdfIn PDF document text
    • https://highlander-inn.com/assets/userfiles/files/rukukugemenifobi.pdfIn PDF document text
    • http://vstarmp.cn/upload/files/20220127_161801.pdfIn PDF document text
    • http://saldusjauniesiem.lv/login/kcfinder/upload/files/9418577132.pdfIn PDF document text
    • http://njbrilliantsolar.com/userfiles/file/33515760587.pdfIn PDF document text
    • http://lbmttcollege.org/ckeditor/kcfinder/upload/files/vatifuxisabufiw.pdfIn PDF document text
    • http://oecschool.com/userfiles/file/38865393952.pdfIn PDF document text
    • http://w.scenekunstskolen-efteruddannelsen.dk/ckfinder/userfiles/files/pajalemuf.pdfIn PDF document text
    • https://christschoolblr.in/userfiles/file/sitasok.pdfIn PDF document text
    • https://sharidendesignasphalt.com/wp-content/plugins/super-forms/uploads/php/files/0e5a8f31d5713e969d8433eb9e2f09f0/86795001344.pdfIn PDF document text
    • http://spzpoz-zdunskawola.pl/upload/file/kurazul.pdfIn PDF document text
    • http://ballet.connection-dance.com/design/file/daradelibarodopawim.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_off00036ac0.bin)
    +1 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00036ac0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36AC0 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0003815f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3815F 17688 bytes
SHA-256: 1e2d2dedc87b481f29129d10e34310cd321ac52044cb052ecad9c353316e18f5
font_02_sfnt_off0003ae0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3AE0D 10936 bytes
SHA-256: ad64b0277eeff98ebfb662637329ab963a3f04f309a8ea4b374fff125f8ec124