Malicious PDF — malware analysis report

Static analysis result for SHA-256 464f5dc3af189a1f…

MALICIOUS

PDF

103.2 KB Created: 2021-06-29 12:07:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 8a85cdd9246597f84b65ff763860c837 SHA-1: 9f019aae6868ca4c63e4526f976a5d528659db9b SHA-256: 464f5dc3af189a1ff193fdd910e50ab1bb9dbdde2d47d18907bab37b6367e931
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and numerous links pointing to compromised websites, indicating an attempt to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware delivery. The presence of embedded JavaScript (T1059.007) and the nature of the links suggest this file was likely delivered as a spearphishing attachment (T1566.001).

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://www.northwoodmedical.ca/wp-content/plugins/super-forms/uploads/php/files/oj8idpc81m8n8617m3sckidp4o/46122938257.pdf In PDF document text
    • http://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609890b4e05a7---labedufu.pdfIn PDF document text
    • https://www.elementstraining.co.uk/wp-content/plugins/super-forms/uploads/php/files/hrgrhh0mkq6ck7rpsv8okikqsb/wuxupofotokakiwukotuzena.pdfIn PDF document text
    • https://lightingsystemscol.com/wp-content/plugins/super-forms/uploads/php/files/53b85fcae166d9ee17b10ab3a20d7736/97306380059.pdfIn PDF document text
    • https://masterpieces-mallorca.com/wp-content/plugins/super-forms/uploads/php/files/204d4c879cfc4626332e3453454e81f6/87953290865.pdfIn PDF document text
    • https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/16086fd8c8ad4f---womoziwefumimapawiwojix.pdfIn PDF document text
    • http://konferencii.org/js/ckfinder/userfiles/files/40811376447.pdfIn PDF document text
    • http://rld-carbon.ru/file/xugen.pdfIn PDF document text
    • http://itineraire-consulting.com/ckfinder/userfiles/files/lununolex.pdfIn PDF document text
    • http://thucphamchucnangmy.vn/uploads/files/voserolelomamofakirafi.pdfIn PDF document text
    • https://www.elementstraining.co.uk/wp-content/plugins/super-forms/uploads/php/files/15p4e010qfvdjieppfnnal33od/podesunesaxisizijenuvila.pdfIn PDF document text
    • https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/v1399764brv44p78999v6d0773/gelomutusukelo.pdfIn PDF document text
    • http://daedukgs.com/admin/fckeditor/data/file/20210606035006.pdfIn PDF document text
    • https://cutletsmeat.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c692425c13---bibefesekemiwolevobidoni.pdfIn PDF document text
    • http://matsusushionline.com/uploads/files/12625380324.pdfIn PDF document text
    • https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/160aad5b254baf---kotekiziwuvifewiwotewup.pdfIn PDF document text
    • http://ekonopuntos.com/campannas/file/gozunoputovufemaxo.pdfIn PDF document text
    • https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/16075dfd62894c---jawimutawutise.pdfIn PDF document text
    • https://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/jv4vo0ajhm1ro26mjvrp31u18k/21056880682.pdfIn PDF document text
    • https://www.siemers-deutschmann.de/wp-content/plugins/super-forms/uploads/php/files/hm5956ut60c864f32b22d2biju/93631709209.pdfIn PDF document text
    • http://calisnt.com/uploads/files/38213135999.pdfIn PDF document text
    • http://alhouti.com/userfiles/file/89230372144.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=step+father+step+daughter+sexPDF 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_off00013357.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13357 16824 bytes
SHA-256: d0b45d242005d3977c07ece44d439b89c64e0d4533664c74391fd500de86ed98
font_01_sfnt_off00015f50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15F50 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00017767.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17767 10692 bytes
SHA-256: 9a4937e6e255a51416e19656e966b9879954cfb4428ae4c99abdd74a6d51582a

Open this report in the interactive analyzer, or submit your own file for analysis.