Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa82d2a6825970bd…

MALICIOUS

PDF

480.8 KB Created: 2022-01-25 19:51:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-07
MD5: 9ba10cebd66359a6f44d677be8a44055 SHA-1: 75d347fa4b9d48f7740087edc17a2262e4086713 SHA-256: aa82d2a6825970bdcb963531da4aea3b1282bd8de8ea11404774e6fb4630abab
152 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4717

Heuristics 8

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://ragaz.co.za/XSRYdR1H?utm_term=online+examination+website+templates+free PDF link annotation
    • https://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/7b82fcbbb5a757b91b5d1f79f8aa702e/41584248332.pdfIn PDF document text
    • http://himalayakebab.com/shipinc/userfiles/files/64754013928.pdfIn PDF document text
    • http://myshiou.com/uploads/files/202109051809093154.pdfIn PDF document text
    • http://us-for-edu.com/imgs/file/52792696934.pdfIn PDF document text
    • http://abogarestudio.com/userfiles/file/gubefuzatetuvelepasin.pdfIn PDF document text
    • https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/161df08acb56fc---18397396804.pdfIn PDF document text
    • https://geneolock.com/ckfinder/userfiles/files/90161341058.pdfIn PDF document text
    • http://www.de.ruben.pl/ckfinder/userfiles/files/nasajaweziwebirofixan.pdfIn PDF document text
    • https://www.ccps.mx/wp-content/plugins/super-forms/uploads/php/files/3dc00b39d965fc625db34e8855f16aec/58598545502.pdfIn PDF document text
    • http://mylodge-naoshima.com/images/blog/file/tulolanubi.pdfIn PDF document text
    • http://architettobotteonpierpaolostudioabacus.it/userfiles/files/53829702745.pdfIn PDF document text
    • http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/8e7a79b35ac08c4a4f9b274887c82c82/94878306546.pdfIn PDF document text
    • http://salt17.com/userfiles/files/lofexojurevoxuwevoj.pdfIn PDF document text
    • http://belcanto-evenements.com/media/files/texolotezo.pdfIn PDF document text
    • http://liily.jp/upload/file/20211023031854.pdfIn PDF document text
    • http://sowaprojekt.pl/files/file/zixefumuvix.pdfIn PDF document text
    • http://gesundheit-im-blog.de/userfiles/file/34271385080.pdfIn PDF document text
    • https://deycaterers.com/ckfinder/userfiles/files/xupuxin.pdfIn PDF document text
    • https://mm-podium.ro/userfiles/file/87365703939.pdfIn PDF document text
    • https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/7831fd9221a45c50c4d96a4530d8e6c0/lorarad.pdfIn PDF document text
    • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/78017145690.pdfIn PDF document text
    • https://ip-kamera-rendszer.nuttydog.hu/ckfinder/userfiles/files/6709402921.pdfIn PDF document text
    • http://eviljoy.com/UserFiles/File/divekatewuzitemazedazob.pdfIn PDF document text
    • http://kanalizace-ul.cz/userfiles/file/58944906651.pdfIn PDF document text
    • https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616b2869950c5---kexofix.pdfIn PDF document text
    • http://buffagiuseppeinfissi.com/userfiles/files/98085783222.pdfIn PDF document text
    • https://all-stage-meditation.tw/uploads/files/618147f3f00aa.pdfIn PDF document text
    • http://phonphangschool.com/upload/files/maxoruwupuxoguwaja.pdfIn PDF document text
    • https://frontivo.ro/userfiles/file/vujufolikaxazomirev.pdfIn PDF document text
    • http://consorzio-csa.it/userfiles/files/48844055211.pdfIn PDF document text
    • https://www.fibertech1.com/my_content/js/ckfinder/userfiles/files/10364615017.pdfIn PDF document text
    • https://moderator.lt/components/com_mijoshop/opencart/image/data/files/36470660683.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_off00071622.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71622 10872 bytes
SHA-256: cc0c532add8b0ac785f61473c94a68cfaec118afe6e595a6396259da43eb8594
font_01_sfnt_off00072f20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72F20 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off000745bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x745BF 17340 bytes
SHA-256: c2145e509221b065304a8833c9a3206687e29d0634eeeaeaac113f9861f558a3

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