Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc9b5e4b5a78b44…

MALICIOUS

PDF

401.0 KB Created: 2022-02-07 07:50:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-30
MD5: 0ade116f4e9b94b8fc15c57689b0b406 SHA-1: 6aed4f3c1c28f510c4ada0ef630f95e7de89705b SHA-256: 1dc9b5e4b5a78b449f55512354a81242fd796ffade7fa94c489ccbd1866911c2
142 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6486

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
  • 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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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://wirut.co.za/XSRYdR1H?utm_term=boss+film++tinyjuke PDF link annotation
    • http://cosmik-kinoteatr.ru/sadm_files/bewiladupomafunap.pdfIn PDF document text
    • http://feminella.ro/upload/fck/gonenuzewirezubolerupux.pdfIn PDF document text
    • https://www.acv-verdun.fr/kcfinder/upload/files/xofozefasuzowipunuxuw.pdfIn PDF document text
    • https://mannerfeltdesignteam.se/ckfinder/userfiles/files/45708881481.pdfIn PDF document text
    • https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/16178ee259ae0c---fetekevidilelu.pdfIn PDF document text
    • https://dm288.rs/slicice/file/donetuluwifiroxase.pdfIn PDF document text
    • https://www.champagne-auge-dascier.com/ckfinder/userfiles/files/64058293983.pdfIn PDF document text
    • https://ville-saintleonard.fr/pdf/xuxinafefapo.pdfIn PDF document text
    • http://vkts.se/userfiles/file/42823526009.pdfIn PDF document text
    • http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/161147fe6ed7a2---97869211030.pdfIn PDF document text
    • http://xn--80aaab5bgii0ck.xn--p1ai/ckfinder/userfiles/files/pedomojufu.pdfIn PDF document text
    • http://cs-golfclub.com/ckupload/files/kavebukavuxaruzibek.pdfIn PDF document text
    • http://tingchucontrol.com/Uploadfiles/files/gewuxifa.pdfIn PDF document text
    • http://yer-krasnodar.ru/ckfinder/userfiles/files/rogajerajevima.pdfIn PDF document text
    • http://faradtvandor.hu/picture/userfiles/file/41902364104.pdfIn PDF document text
    • http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1617fc8e39518c---kupefapigezirowikibufafep.pdfIn PDF document text
    • http://hiroshima-teishaku.com/userfiles/file/86650311142.pdfIn PDF document text
    • https://sieuviet.net/webroot/img/files/24554370143.pdfIn PDF document text
    • http://thegrcinstitute.org/app/webroot/js/ckfinder/userfiles/files/kajaxorekofel.pdfIn PDF document text
    • https://apz-arte.com/ckfinder/userfiles/files/90080475668.pdfIn PDF document text
    • http://autosoftware.company/autoresponders_images/files/fosef.pdfIn PDF document text
    • https://grandinhr.eu/images/user/file/36510977376.pdfIn PDF document text
    • http://cocoal.com/uploads/file/boretizumofevujipedokose.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005ceb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CEB5 16900 bytes
SHA-256: e8574ab079dd3a80fd84aa1dbac881b4d5aee53ea0848debe8eac752cba3fdac
font_01_sfnt_off0005faa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FAA9 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000611c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x611C9 10604 bytes
SHA-256: 786934bfdb8c5a6a8f082e9bf47add0ac9e79b306b29f086ac13f240f03529de
font_03_sfnt_off00062a05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62A05 2016 bytes
SHA-256: 5c6a0ec32a405437d6addec93d749c8d520cc1fd6528ea8f90a1998d56a0aa57