Malicious PDF — malware analysis report

Static analysis result for SHA-256 745dfedaaae16950…

MALICIOUS

PDF

85.8 KB Created: 2021-06-29 04:03:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: c84ffb3a86ecb9824d4bd3f9cdd05e86 SHA-1: 00d6b0ddc2161e7e1fcce61510c238dc0846d4a9 SHA-256: 745dfedaaae16950f63a29f1fdbf987b14c37edec46cd7bcf86da870510e5830
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The file contains numerous links pointing to various domains, many of which appear to be compromised or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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://ketchas.ru/uplcv?utm_term=exodus+the+gods+and+kings PDF link annotation
    • http://tumwebthailand.com/ckfinder/userfiles/files/xibopurew.pdfIn PDF document text
    • http://gat-asset.com/CKEdit/upload/files/tepulukowujowudugule.pdfIn PDF document text
    • http://topenglish.sk/app/webroot/gallery/files/zimovejari.pdfIn PDF document text
    • http://nsfeed.com/_UploadFile/Images/file/44082037137.pdfIn PDF document text
    • https://lasanisports.com/files/bogaweva.pdfIn PDF document text
    • http://bright-mineral.com/uploadfile/file/2021052204122044.pdfIn PDF document text
    • http://ilovehikari.com/uploads/files/38254230539.pdfIn PDF document text
    • http://vetranhtuong.info/luutru/files/69556904747.pdfIn PDF document text
    • http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f519a5ba94---76637697937.pdfIn PDF document text
    • http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/1607a076ce932b---jafumajimobivozagefe.pdfIn PDF document text
    • http://c2mag.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608670ecbdb4b---50546719777.pdfIn PDF document text
    • https://www.dolphinrfid.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd6034a5104---8745598024.pdfIn PDF document text
    • https://homeaestheticsllc.com/wp-content/plugins/super-forms/uploads/php/files/914ca7598d44a9f55dd38eef5ae48738/95075807950.pdfIn PDF document text
    • https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/7f55984f4328211a0245c8819e09bd44/32602179527.pdfIn PDF document text
    • http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1608445cfee920---60961971696.pdfIn PDF document text
    • http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/160bdc38075274---62013901841.pdfIn PDF document text
    • https://irisapp.cn/uploadfiles/fckeditor/20210610/file/16232735471140.pdfIn PDF document text
    • http://stalmont.eu/userfiles/file/diwad.pdfIn PDF document text
    • http://businessplan-capalpha.eu/mbp/upload/images/images/upload/ckfinder/43010205951.pdfIn PDF document text
    • https://www.sixteengrams.com/wp-content/plugins/super-forms/uploads/php/files/njr5fjakf0l7ve5pn4eas2fgoo/xodipusesivolozejawiwi.pdfIn PDF document text
    • https://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/1a590d0fd77613f04b06c9eb7eb24885/42893875032.pdfIn PDF document text
    • https://urbanplace.me/wp-content/plugins/super-forms/uploads/php/files/6a7cbb104dd79a8cb6bafed363b894eb/87292712723.pdfIn PDF document text
    • https://anfauglir.com/images/file/kefafemimoli.pdfIn PDF document text
    • http://analogsys.com/uploaded/file/912322879608ccedb09c60.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_off0000ed20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED20 10660 bytes
SHA-256: 46ab97ae4bfad28d80303620a6a0632bb7d36cdfc3cf54b8c6b78f0ecc412add
font_01_sfnt_off00010543.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10543 17064 bytes
SHA-256: 57235fe1b5f4525a42acd99639a4de5e7ee489df8333322d9118725527862403
font_02_sfnt_off000131f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x131F7 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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