Malicious PDF — malware analysis report

Static analysis result for SHA-256 58e9f67dfb0f5b45…

MALICIOUS

PDF

145.0 KB Created: 2021-06-26 04:14:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 54cff61f0fdb1bb53d7c5c00dff11e59 SHA-1: 347243bb0a714444fc952fc0ae1358aed58ea603 SHA-256: 58e9f67dfb0f5b45b4776ae2a2bb2f54093999cdd7050004633fa85b627f7e61
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains numerous links pointing to compromised websites and disposable hosting, suggesting a phishing or malware distribution scheme. The presence of external URIs and link farms indicates an attempt to redirect the user to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9943

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://amirep.com/wp-content/plugins/super-forms/uploads/php/files/986aaae5e1bf65c4623724a77783f934/16497662097.pdf In PDF document text
    • http://bendhigh1970.com/clients/1/10/106e6567aa8bd3cecf4080670b11bd10/File/32154994152.pdfIn PDF document text
    • http://slsnn.ru/content/files/jidixukeludi.pdfIn PDF document text
    • http://itnetworkconsultingsf.com/helpdesk/app/webroot/img/userfiles/files/62759243731.pdfIn PDF document text
    • https://noukos.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160a6bc40bcda0---35644020686.pdfIn PDF document text
    • http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160b1864231c12---vovukokibikobadusawidewor.pdfIn PDF document text
    • https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/e1b14404729f9b8aee1a4a6eea3a6f71/94726329129.pdfIn PDF document text
    • https://actorconseil.com/files/file/50043893178.pdfIn PDF document text
    • http://tv-kitchen.ru/files/files/wudejubivusepaboxokeli.pdfIn PDF document text
    • https://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/53c422a6aff6606a46d70b68ab595949/siwomozivelewatabawakokeg.pdfIn PDF document text
    • https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/2712b334fbf02a5c99f72c091c4b1258/93281945156.pdfIn PDF document text
    • https://sellerflows.com/wp-content/plugins/super-forms/uploads/php/files/3f9add01dd854e47bba54f21a1cc1810/84098933923.pdfIn PDF document text
    • https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/417f04c60d268ff8b8ff028ca57a522c/wibafexamaputesewegikevu.pdfIn PDF document text
    • https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/32476cdcad4e62b46968e0d0f4961dec/nijugunuw.pdfIn PDF document text
    • https://jclifeschools.org/wp-content/plugins/super-forms/uploads/php/files/ebb572be9d871b53005066743ab4a5c9/34295980932.pdfIn PDF document text
    • https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/3dmkei2csa3o8ehqjqigagh8hg/zotufewotebi.pdfIn PDF document text
    • https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/81b67c469a3b39df76f097fd44e9d170/72505494896.pdfIn PDF document text
    • https://picinterior.com/ckfinder/userfiles/files/belegudagafubepakotu.pdfIn PDF document text
    • https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fb1b1aff10---19233038311.pdfIn PDF document text
    • http://boxethai38.com/upload/file/6997450371.pdfIn PDF document text
    • https://shiphangnhanh.net/uploads/image/files/13346022072.pdfIn PDF document text
    • https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608874d34a9be---busanuzebadifuragikafe.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=elements+of+production+in+theatrePDF 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_off0001d097.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D097 21248 bytes
SHA-256: 49144cd54f270c9592eccf48876b6116248efd79a4cb3505021326ddfc9fe478
font_01_sfnt_off0002051b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2051B 10968 bytes
SHA-256: f74c38a4a5528c49e5789f10fe7d671b6906a8d2c309bc927e9498061ccc7027
font_02_sfnt_off00021e53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21E53 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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