Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2009ab399b1a18c…

MALICIOUS

PDF

88.7 KB Created: 2021-07-06 11:27:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: ebc2d55e276dc29526e6774e9ee21a76 SHA-1: ca32cacc7b34311c53c6122eeaf0c2448aafee2c SHA-256: e2009ab399b1a18c9bbea2085f589ded1a31b0031222d9e4fa8afd5f3e6606d3
196 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristic 'SE_BROWSER_INSTALL_LURE' suggests the document is designed to trick the user into installing a malicious browser extension or update. While no scripts were explicitly extracted, the presence of numerous URLs, some pointing to compromised CMS uploads and link farms, indicates a potential distribution mechanism for further malicious content. The document's structure and embedded content are consistent with phishing or malware delivery attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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 http://jfhcoaching.nl/userfiles/files/xenake.pdf In PDF document text
    • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/eu39muotu2jnpbtbvrp3jeivn4/64141831933.pdfIn PDF document text
    • http://razaviota.ir/basefile/razaviotair/files/46238023719.pdfIn PDF document text
    • https://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160b7d20c8d36c---nixawuze.pdfIn PDF document text
    • http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5bb8dc2850---xazunilupabenimomum.pdfIn PDF document text
    • https://specialbrands.gr/wp-content/plugins/super-forms/uploads/php/files/1a0c3baf70dc7b1b2898360d6f454d66/kijopun.pdfIn PDF document text
    • http://re-view.online/fckFiles/file/77497707208.pdfIn PDF document text
    • http://wojno-stal.pl/pliki/file/lapoki.pdfIn PDF document text
    • https://mojer.bg/files/12456895096.pdfIn PDF document text
    • http://debandhelder.nl/ckfinder/userfiles/files/29860314488.pdfIn PDF document text
    • https://tiguan-wiki.ru/file/57610154092.pdfIn PDF document text
    • http://davisfolk.net/clients/1/1f/1f1070e31f35868a9a13f38ee7dc887f/File/putivezoxorevazolozaxo.pdfIn PDF document text
    • https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607473206b485---67254509381.pdfIn PDF document text
    • http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/160c8f45dd14f3---25619999297.pdfIn PDF document text
    • https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c24b7f20b93---mamixifa.pdfIn PDF document text
    • https://ckmusicdesign.nl/userfiles/file/71592426879.pdfIn PDF document text
    • http://greathorserider.com/ckfinder/userfiles/files/zaroresozuxavusuzevi.pdfIn PDF document text
    • https://www.arphplumbing.co.uk/wp-content/plugins/super-forms/uploads/php/files/k0v4fmbhd9vid56q83osh7dr43/zupujatev.pdfIn PDF document text
    • http://edanieltour.com/FileData/ckfinder/files/20210528_61742A65538529FC.pdfIn PDF document text
    • https://aldapa.eus/files/galeria/files/tunikixetexa.pdfIn PDF document text
    • https://armagedonspedycja.pl/files/file/nipixesexutadujupig.pdfIn PDF document text
    • https://rodolphe-blanchet.fr/Rodolphe/fckeditor/file/8359905011.pdfIn PDF document text
    • http://slp72.com/clients/7/7b/7b902bee17765b19ebdde6030f24742d/File/52371000917.pdfIn PDF document text
    • https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a278d7c114b---sijeza.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=free+online+pdf+to+excel+converter+unlimited+pagesPDF 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_off0000ec20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC20 21716 bytes
SHA-256: 3abaf12d3e0b633bbe0afd90404fd66d45a62018a83e9489cffae573744395f9
font_01_sfnt_off00012306.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12306 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00013b1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13B1D 11208 bytes
SHA-256: 3f3aac52b365d60db7dc1e64c2d4fa4302d9af2c571c482f4db8e9c4d15bb8fe

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