Malicious PDF — malware analysis report

Static analysis result for SHA-256 0113dbc3d45c9753…

MALICIOUS

PDF

636.0 KB Created: 2022-03-04 14:51:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-28
MD5: f5530b6436b80ce42eeeda6b2246e4c4 SHA-1: 1e58e0f24bd070d18903c345c0187abc0076d37a SHA-256: 0113dbc3d45c9753ddb492f4fa65cc8a17d547ba051d95c9144fadc4773d36db
144 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.2771

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://colod.co.za/XSRYdR1H?utm_term=cea+format+2017-+18 PDF link annotation
    • http://bekkercoon.ru/ckfinder/userfiles/files/budimenu.pdfIn PDF document text
    • http://bytip.net/filespath/files/20220203121449.pdfIn PDF document text
    • https://uaqbakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621cc19e33f34---fuvakujimozotamavi.pdfIn PDF document text
    • https://airsoft1.ro/files/file/fewanomon.pdfIn PDF document text
    • http://kstarsmall.net/userfiles/file///99830138534.pdfIn PDF document text
    • https://voziky-paletove.cz/mctree.cz/pictures/other/files/40300017250.pdfIn PDF document text
    • http://advocaciaciervo.com/kcfinder/upload/files/10620773544.pdfIn PDF document text
    • http://cn-polylysine.com/d/files/wutazaxozifowuniva.pdfIn PDF document text
    • http://iwebcambodia.com/admin/kcfinder/upload/files/91618768364.pdfIn PDF document text
    • http://www.allatpatikapecs.hu/images/file/wotasininu.pdfIn PDF document text
    • https://stdtekstil.com/upload/ckfinder/files/84658329421.pdfIn PDF document text
    • http://dc-0b9b12d700ad.collinite.pl/userfiles/file/49904506681.pdfIn PDF document text
    • https://knoxvilleremembers.com/media/kopexowuloviwusunu.pdfIn PDF document text
    • http://travellerisland.com/files/zulisotujozinukigita.pdfIn PDF document text
    • http://misosmile.com/upload/editor/files/sigipepetupafawux.pdfIn PDF document text
    • http://akcompany.vn/uploads/userfiles/file/66095384548.pdfIn PDF document text
    • http://tratyfa.com/public/ckeditor/kcfinder/upload/files/derulavidobifefa.pdfIn PDF document text
    • https://simpeg.unsam.ac.id/kcfinder/upload/files/54591947850.pdfIn PDF document text
    • http://jogastudioveszprem.hu/kcfinder/upload/files/topomigodavisezo.pdfIn PDF document text
    • https://www.hotel-palladium.gr/wp-content/plugins/super-forms/uploads/php/files/msi8tlf1kt5s6g21asbnbgprb6/kujedipuziw.pdfIn PDF document text
    • http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/162024ac402013---sejezidavuxesur.pdfIn PDF document text
    • http://valleytechltd.com/assets/ckeditor/kcfinder/upload/files/62811186887.pdfIn PDF document text
    • http://fishlinkworldwide.my/assets/kcfinder/upload/no_user/files/1360028790.pdfIn PDF document text
    • http://schunk-app.com/js/kcfinder/upload/files/18607739447.pdfIn PDF document text
    • https://ntdpoland.pl/eurostyl/photos/file/siwuxiz.pdfIn PDF document text
    • https://jotelek.hu/files/file/zivorutikijefozivinu.pdfIn PDF document text
    • http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16205711fb824d---xinafiwasodafemumofoni.pdfIn PDF document text
    • http://ssmsuits.com/kcfinder/upload/files/vaxarudotutu.pdfIn PDF document text
    • http://vestmorecapital.com/images/epost/jodogibufufo.pdfIn PDF document text
    • https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620554228f0e0---fodisanekef.pdfIn PDF document text
    • https://cebubigsellers.com/userfiles/file/tirajapedovepavuma.pdfIn PDF document text
    • https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/edc5fb4e950a984fd332ab4de7210a51/selonulokovo.pdfIn PDF document text
    • https://rubenoferro.com/userfiles/file/wawifup.pdfIn PDF document text
    • https://vanrun-it.nl/userfiles/files/14010589447.pdfIn PDF document text
    • http://redagowanieprac.net/Upload/file/vatolide.pdfIn PDF document text
    • http://reside-realestate.de/user_files/files/75408481163.pdfIn PDF document text
    • http://ettis.net/kcfinder/upload/files/jaranupogutuwolanovezefo.pdfIn PDF document text
    • https://fontini-rozetki.su/kcfinder/upload/files/41119217748.pdfIn PDF document text
    • http://apsara.ru/userfiles/file/tasebarazev.pdfIn PDF document text
    • https://ceb.lk/assets/js/kcfinder/upload/files/67526200829.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_off00095d70.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00095d70.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00095d70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95D70 22292 bytes
SHA-256: 5b85ed88dabb9d517b3a235568f6cacf1f70fd12886a196fad6b2e59314f1686
font_01_sfnt_off00099902.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99902 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0009b01c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B01C 16256 bytes
SHA-256: 10bcc1c9c7012079259065d959c04c61270a037a1fba5157882be7cfc6b81065
font_03_sfnt_off0009c616.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C616 10584 bytes
SHA-256: 9da5ccc343aad83d95a1cfcf338c94a7c29d74b95bd1d361de78c09071ad50bb