Malicious PDF — malware analysis report

Static analysis result for SHA-256 30d7b608532f741b…

MALICIOUS

PDF

90.9 KB Created: 2021-07-20 07:02:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: 1602859ceb5c5ef1664110fb7c92ab31 SHA-1: 9edadc36d5d66e770e8e9e67b66c4b66102e9c4e SHA-256: 30d7b608532f741bd30256eb32c061a55c046dcd8d24719488b7fddbb2f10cfe
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains numerous links, many pointing to compromised WordPress sites and disposable domains, suggesting a link farm or redirection scheme. The ML classifier strongly indicated maliciousness, and the presence of multiple external URIs supports the conclusion that this document is designed to lead users to malicious content. No scripts were extracted, but the structure and URL patterns are indicative of a phishing or malware distribution lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

Heuristics 5

  • 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://storage-in-motion.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8fca701e1c---13804405596.pdf In PDF document text
    • http://immodraft.nrw/images/architekten_agentur_images_/file/vaxuxowewavatakilusa.pdfIn PDF document text
    • http://mtlebanon62.com/clients/5/5e/5ee551a8be14a26d7d76bc5e90dd1372/File/dukifudovepekuratabep.pdfIn PDF document text
    • https://hoffmanowska.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160b8d4e5144ad---18089954876.pdfIn PDF document text
    • https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/160942bf8ecdcf---koxidizexak.pdfIn PDF document text
    • http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b475b4902fb---17278805371.pdfIn PDF document text
    • https://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/9b29354f6c301a7c7ce1c4649b25ded8/44640250607.pdfIn PDF document text
    • http://www.findvoters.com/userfiles/file/28814515115.pdfIn PDF document text
    • http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1606f9a2c29730---33136125724.pdfIn PDF document text
    • https://www.idd.no/ckfinder/userfiles/files/44250404513.pdfIn PDF document text
    • http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16077d046aa09b---16058913160.pdfIn PDF document text
    • http://peneleos.pl/userfiles/file/nabufuvega.pdfIn PDF document text
    • http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16088c8dbbced9---dajejijarug.pdfIn PDF document text
    • http://baugeraeteverleih.de/benutzerdateien/rakakuxiba.pdfIn PDF document text
    • http://turinhotelcompany.com/userfiles/files/fawepofeleleziwujekidipob.pdfIn PDF document text
    • http://elonsummerstorage.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f0f5760c55---98231866404.pdfIn PDF document text
    • https://3dreamvr.com/wp-content/plugins/super-forms/uploads/php/files/4fee12ad08d3c1a6c75b82ac3e47f446/25837492508.pdfIn PDF document text
    • http://hibertek.com/image/files/20210607_203003.pdfIn PDF document text
    • http://duszek-lasu.pl/userfiles/file/fidon.pdfIn PDF document text
    • https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/5c89988770a22cc017ffe35ab2da3204/ridasaze.pdfIn PDF document text
    • http://benrassam.com/uploads/files/73929420802.pdfIn PDF document text
    • https://canadianrelocation.net/wp-content/plugins/formcraft/file-upload/server/content/files/160700155c8784---bujesinofufepusug.pdfIn PDF document text
    • http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e52657a1db2---fikuxopemagosijukelifi.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=can+you+pass+emission+test+with+airbag+light+onPDF link annotation
    • 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_off0000fff9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFF9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00011810.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11810 11172 bytes
SHA-256: 245e2517b845dd5270dbc9b321962b7251bc5ce9d14e8e3594ed6aed7a585f95
font_02_sfnt_off000131d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x131D8 17080 bytes
SHA-256: 6cb30b4fefff0470cbfa8fb85087ac2328565903250f92a664a39a078a44343c

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