Malicious PDF — malware analysis report

Static analysis result for SHA-256 445a6b6cb1f4c7da…

MALICIOUS

PDF

76.2 KB Created: 2021-09-04 12:36:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-10
MD5: f07c6ed762f03ee3db26fe04f2f2c037 SHA-1: 6f7c9602be5d0c77f36ea4270280163c683a76dc SHA-256: 445a6b6cb1f4c7daeda00409f97f14c2fb8e73fd930c75c04b1ea21660fa7008
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

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://huntic.ru/uplcv?utm_term=inequalities+gcse+questions+pdf PDF link annotation
    • http://securitydirect.it/wp-content/plugins/super-forms/uploads/php/files/1d5429548a92ed04079fbceddf8a828c/90612526255.pdfIn PDF document text
    • https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070c24b14bcf---vovemaxed.pdfIn PDF document text
    • https://lawpropertyconsultants.co.uk/wp-content/plugins/super-forms/uploads/php/files/h1p543hq9tbmllrh5kr7unu6lv/99230221323.pdfIn PDF document text
    • https://jjmassociates.com/wp-content/plugins/super-forms/uploads/php/files/15fa98c54f289eac6e658a61dcd9b09a/65498440868.pdfIn PDF document text
    • http://www.franklinwebdesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f01a275680---31583332547.pdfIn PDF document text
    • http://yas-center.ru/userfiles/file/55014217948.pdfIn PDF document text
    • https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/0e2157cf932542a234cce543f4ac7b70/jagusewemofuruw.pdfIn PDF document text
    • http://www.lightingandhvacexpo.com/wp-content/plugins/super-forms/uploads/php/files/93c549fd96ce6b738bfd09f68bcfbedf/miwazutarifabuxokewuraro.pdfIn PDF document text
    • http://armiikrajowej36.pl/public/upload/ckfinder/userfiles/files/wemek.pdfIn PDF document text
    • http://windowsplusllc.com/ckfinder/userfiles/files/74451579116.pdfIn PDF document text
    • http://erainbowrealty.com/userfiles/file/30901404146.pdfIn PDF document text
    • https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1611cf6ca8bb2c---pazofube.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071618913dbe---39802902381.pdfIn PDF document text
    • http://camionespanamericana.com/userfiles/file/wetivelulolabejuw.pdfIn PDF document text
    • http://hophungvietnam.com/app/webroot/uploads/files/19773604711.pdfIn PDF document text
    • https://gservicepz.com/wp-content/plugins/super-forms/uploads/php/files/f6d835eac5702c90fa684282be10b740/42159424476.pdfIn PDF document text
    • https://digireg.cz/upload/27937466538.pdfIn PDF document text
    • http://randygordonlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/50682351603.pdfIn PDF document text
    • https://parisautotravel.com/wp-content/plugins/super-forms/uploads/php/files/eov89hifrln0spmeqfjc3o2354/gobekomobixakodavori.pdfIn PDF document text
    • http://majorpropertygroup.com/userfiles/files/7941650064.pdfIn PDF document text
    • http://wisewood50th.com/clients/3/35/35ca2b70ae131fa39667c240906a3fe4/File/15775169790.pdfIn PDF document text
    • https://atlastoursntravels.com/userfiles/file/38212435580.pdfIn PDF document text
    • http://bmsorganica.com/userfiles/file/66204126051.pdfIn PDF document text
    • http://s292376414.onlinehome.fr/datas/imgmail/file/jelirirobonem.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_off0000c705.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC705 10892 bytes
SHA-256: 6d7aacec67f867bf66b6ff7066c9cf846262c2257fddc0a9ea6c675dbc966f8b
font_01_sfnt_off0000dfcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFCC 16880 bytes
SHA-256: c95db5c02a26600e31030f693f6b4d260aeafafe5eb1f136197af1f257eca04b
font_02_sfnt_off00010b42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B42 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1