Malicious PDF — malware analysis report

Static analysis result for SHA-256 30ad8bbedbbfc22d…

MALICIOUS

PDF

80.7 KB Created: 2021-09-01 22:55:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: c0e29cd122470877fcdb26cfd02de5d7 SHA-1: 57818ef34d548fe5d026e458087721c36c684693 SHA-256: 30ad8bbedbbfc22d273a70335889d2c9ffe6b1bf1d158c19a929da505943a0e8
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

This PDF file was flagged as malicious by a machine learning classifier and ClamAV. It contains numerous links, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of 'utm_term' in one of the URLs indicates a potential phishing or SEO manipulation attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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://pixomot.ru/uplcv?utm_term=equation+to+function+notation+calculator PDF link annotation
    • http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/160875973dafd8---fividujojotigejigigutowu.pdfIn PDF document text
    • http://first-group.kr/ckupload/files/59544155134.pdfIn PDF document text
    • https://clubslotalmatriche.com/calcas/file/lutusibugexekapelobi.pdfIn PDF document text
    • https://www.psalighting.com/wp-content/plugins/super-forms/uploads/php/files/db4ceb9b2d792644c561547c4ca6f06b/venerosizufobututaj.pdfIn PDF document text
    • http://hortherbpublisher.com/files/upfiles/file/71036865526.pdfIn PDF document text
    • http://baocaosuhoatoc.com/luutru/files/34221619624.pdfIn PDF document text
    • https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a3d2b428d0a---jukefakusixalasebasosiz.pdfIn PDF document text
    • https://bmw-zona.ru/uploads/file/95914373088.pdfIn PDF document text
    • https://svetpoznaniyaonline.ru/wp-content/plugins/super-forms/uploads/php/files/43f969ff018c4bbe7456d67374b00d2f/zitenunoxesom.pdfIn PDF document text
    • http://kiiga.ru/userfiles/file/zutonezimemizalama.pdfIn PDF document text
    • https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/9d3e3043a37dc8d406db25d31826b54d/vepidemeneruwo.pdfIn PDF document text
    • http://ajivikafinance.com/userfiles/file/95053264386.pdfIn PDF document text
    • https://kfmaccounting.com/webroot/img/content/files/saner.pdfIn PDF document text
    • http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160804e79e2473---kupenoputebotubatolax.pdfIn PDF document text
    • http://fluitec.fr/ressource/site-image/files/rolixugaxefagofi.pdfIn PDF document text
    • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1606cfb7b164d6---60788205520.pdfIn PDF document text
    • http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607c2aa880b26---6132953995.pdfIn PDF document text
    • http://kimyasaldubeller.com/upload/ckfinder/files/telipedevami.pdfIn PDF document text
    • http://aan.kz/ckfinder/userfiles/files/92321168015.pdfIn PDF document text
    • https://3dreamvr.com/wp-content/plugins/super-forms/uploads/php/files/15d24ede1e75da2cc9cc89becdb7a780/30132885767.pdfIn PDF document text
    • http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8d9fe22396---58563982218.pdfIn PDF document text
    • http://lbs.ac.at/wp-content/plugins/super-forms/uploads/php/files/4o9528p23aiue5e1f4ukea9q8u/mosemulosevuduwe.pdfIn PDF document text
    • http://ahhsclassof1980reunion.com/clients/e/eb/eb0bda5e83c72ae03ef0bdd1ae4752ba/File/muwixuwojasurokupot.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_off0000d892.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD892 17308 bytes
SHA-256: 9808ff7941dcf6e5a8fa19e3c3e6adc02a9756d170ebc6478ae634da3f1645b6
font_01_sfnt_off000105c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105C4 10260 bytes
SHA-256: 6dc9801bc09d994c697de05782f2392a9778a034f959397d2412e345be140713
font_02_sfnt_off00011ce7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CE7 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

Open this report in the interactive analyzer, or submit your own file for analysis.