Malicious PDF — malware analysis report

Static analysis result for SHA-256 6da67271bcf9e6ee…

MALICIOUS

PDF

92.1 KB Created: 2021-07-06 20:59:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: d389e17ebffe199012bee7bb24e3ee98 SHA-1: 7a4a996a9e4b3d70ccfa38d527b2325af1c1e443 SHA-256: 6da67271bcf9e6eee947a9da80c27d90262ec16593860d39b0aa37a81677b882
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links pointing to compromised CMS upload directories, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were directly extracted, the structure and URL patterns are consistent with a phishing lure designed to trick users into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9822

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
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://fatheragneliti.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6ecd9ba235---vopanuf.pdf In PDF document text
    • http://timeyear-v.com/userfiles/file/fagok.pdfIn PDF document text
    • https://childconcern.in/trila/userfiles/file/lewave.pdfIn PDF document text
    • http://neuragen.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160b969d91bc01---fajibomosuvofujejiz.pdfIn PDF document text
    • https://patriot.ch/wp-content/plugins/super-forms/uploads/php/files/2lbjsvc1116ah5h52tjkq9vr8m/25379444889.pdfIn PDF document text
    • https://augsburger-dartliga.de/uploads/file/nabosibofopiwogat.pdfIn PDF document text
    • https://chmelo.hu/sites/default/files/file/29503715739.pdfIn PDF document text
    • http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/160870f4533c40---45733449450.pdfIn PDF document text
    • https://www.ideaklinikkadikoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160757dfe06c44---pexutuzadoran.pdfIn PDF document text
    • https://eandjfamilyhealthcenter.com/wp-content/plugins/super-forms/uploads/php/files/61971067f61713e3db3847bf2f0a0d2f/48177152686.pdfIn PDF document text
    • https://dolaodong.com/userfiles/file/78612191837.pdfIn PDF document text
    • https://weinquartier.at/wp-content/plugins/super-forms/uploads/php/files/5f7dd39a033905efa5cb7cf02c8beae2/jesigoka.pdfIn PDF document text
    • http://kasystemofkarate.com/clients/861259/File/65010913482.pdfIn PDF document text
    • https://rfcorporation.net/wp-content/plugins/super-forms/uploads/php/files/80f158fce6ceae9e4b4d333fbc767102/fotesavono.pdfIn PDF document text
    • http://ahs1968.com/clients/d/dc/dcea35c349c70fb55dca458fc6558ff6/File/61797432971.pdfIn PDF document text
    • http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160a6547b22409---29830736323.pdfIn PDF document text
    • http://king-ber.com/UploadFiles/file/20210627080146424.pdfIn PDF document text
    • https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/1b85e22b4861fb9bdbcfb9f0f4f6d30d/55520148060.pdfIn PDF document text
    • http://mutitar.com/user_img/files/35045651089.pdfIn PDF document text
    • http://amdind.com/userfiles/file/jowuxusodu.pdfIn PDF document text
    • https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/f6d7fa427ea75f330be0268bbe314056/8537877853.pdfIn PDF document text
    • https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/hakdgfk3ql9erru1p7ku3fke62/fimenemukari.pdfIn PDF document text
    • https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b79a20d2d0a---posorisi.pdfIn PDF document text
    • https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/rk1nt919lpi1ddv556k5u7vnoo/11668889902.pdfIn PDF document text
    • https://angelsstaff.com/uploads/file/porijomu.pdfIn PDF document text
    • http://bhs1966maui.com/clients/64750/File/vibisaje.pdfIn PDF document text
    • http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/160835cb540069---fozofedisirewol.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=best+states+to+buy+apartment+buildingsPDF 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_off0000fef9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEF9 11140 bytes
SHA-256: a1874c8864c4f1a4574782ca5b877666d1bea8c2f0fcbaec2a44447b8f5e634f
font_01_sfnt_off00011898.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11898 18264 bytes
SHA-256: b7a822748daf084105cd80fdc5cf6bc62a4dad6ce0ea2bb275b40f1cf841c80a
font_02_sfnt_off00014909.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14909 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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