Malicious PDF — malware analysis report

Static analysis result for SHA-256 e46e3dd8c81cf8d6…

MALICIOUS

PDF

88.5 KB Created: 2021-06-28 07:24:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: b84c3dea21963b0a6e5160ec6dfa5b0c SHA-1: b6b9eaa3a593d5e6ef49212ae7d4ae3efd5c8d05 SHA-256: e46e3dd8c81cf8d642349a9b7f748846aeb8fea5cc897e1419b809312692959e
156 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware delivery. The presence of external URIs and link farms points towards a tactic of directing users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9952

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://havanic.com/cache/fck_files/file/29773459215.pdf In PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e7d2c7421f---ligewopexomiwofox.pdfIn PDF document text
    • http://tachikawa-derma.biz/ckfinder/userfiles/files/dexagal.pdfIn PDF document text
    • http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/nlh7r9ol17up2pf2eb0dbke9s1/dozakonutedobutiw.pdfIn PDF document text
    • https://prsnashville.com/wp-content/plugins/super-forms/uploads/php/files/2dc4ef1e673370a8447dda604809db57/ginejolifeluzonet.pdfIn PDF document text
    • http://watdoenwevandaag.nl/upload/30616338375.pdfIn PDF document text
    • https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/93a541b1f3f22e8e8a8730bc03eae0a8/jezezexerisigezove.pdfIn PDF document text
    • http://campcolefamilyreunion.com/clients/82065/File/vorazisigogejokilemevaka.pdfIn PDF document text
    • https://joepromenshealth.com/wp-content/plugins/super-forms/uploads/php/files/2eca133e77757a9bf9632953135b4721/mowowululizomapi.pdfIn PDF document text
    • https://happycustomerservice.com/wp-content/plugins/super-forms/uploads/php/files/6a860709abfc64550b33044ac3cc7521/rupizutonab.pdfIn PDF document text
    • http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160a4125dcaaa5---gogekametog.pdfIn PDF document text
    • https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/46ae3b3d7450546cef1fcdbcb6ba6063/41104136397.pdfIn PDF document text
    • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1607674a6ec636---vovilirazugafes.pdfIn PDF document text
    • https://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/giadi3kpn0vfg04jc0gb5mi1ic/fidewugi.pdfIn PDF document text
    • http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/16073e2518f228---20671301533.pdfIn PDF document text
    • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607f97a443758---30640593740.pdfIn PDF document text
    • https://costumeworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/160877ae7b7afc---goronuxelorebav.pdfIn PDF document text
    • http://nitexprofi.cz/userfiles/file/bakozujegu.pdfIn PDF document text
    • https://www.alphaveneers.com/wp-content/plugins/super-forms/uploads/php/files/5ba3d2470cc9b94064af799227a3d198/94270803348.pdfIn PDF document text
    • https://cardion.dk/gfx/fckimages/file/nenuwigamefibenosu.pdfIn PDF document text
    • http://www.sempresaude.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609bcea8ad8f6---3161403796.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b74f13f12e3---37276392621.pdfIn PDF document text
    • http://muszempilla.com/files/file/69293828719.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=may+all+dreams+and+wishes+come+truePDF 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_off0000f57d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF57D 10928 bytes
SHA-256: 1c962d50d4064cbec4e2a81a19ab28be8313c2e75323a4139637c7fa43845ea3
font_01_sfnt_off00010eb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EB4 17376 bytes
SHA-256: a89ea75110efb27111645726fe87abad646f5eb21afa47f96e240984a2216f5b
font_02_sfnt_off00013c7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13C7E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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