Malicious PDF — malware analysis report

Static analysis result for SHA-256 62d3992c2d47e7b1…

MALICIOUS

PDF

79.0 KB Created: 2021-07-02 07:06:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 7e39d9dee3aa4ef4659e79a4f5d51e5e SHA-1: 39c7a1406edce9fbf4ed7eb0b1ae39b6aff03040 SHA-256: 62d3992c2d47e7b1f09bc8aa42c174805f38d932b14b0e61d1a54c2621c94c71
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains a link farm pointing to numerous external URLs, many hosted on compromised WordPress sites, suggesting an attempt to redirect users to malicious content. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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 http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/e9dc6eab990f44d8c4c74328e79f5678/53700698600.pdf In PDF document text
    • http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c24ca8e3674---48991917493.pdfIn PDF document text
    • http://www.startservis.sk/novy/ckfinder/userfiles/files/nokevuzipamipagadawirim.pdfIn PDF document text
    • https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/8aad244bca930d7ad2fdca808debabcd/17659556798.pdfIn PDF document text
    • http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7aaeabe3eb---bujefupubukiwilodavolugeb.pdfIn PDF document text
    • http://timelessmebel.ru/wp-content/plugins/super-forms/uploads/php/files/a9e7f1c5050ad7a12c3237e9836b4578/vupadenejufopamogaraxu.pdfIn PDF document text
    • http://pileshoppen.dk/userfiles/file/pufajubotofev.pdfIn PDF document text
    • https://ofertaromania.ro/ckfinder/userfiles/files/56540364391.pdfIn PDF document text
    • http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1609f4813dd1cc---25077084625.pdfIn PDF document text
    • https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/160c1cc2ba5fbc---34555058435.pdfIn PDF document text
    • http://middlegeorgiacoinclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092033813aee---didalevelixifisiwitu.pdfIn PDF document text
    • https://jetzterstrecht.hamburg/wp-content/plugins/super-forms/uploads/php/files/fh1cqafl90jg54l0gvkbctn9a6/44675839418.pdfIn PDF document text
    • https://moto-trend.cz/public/files/fck/file/wujebefelalazumexarudewe.pdfIn PDF document text
    • https://norservis.cz/files/files/punasasapulonajenodemix.pdfIn PDF document text
    • https://www.schroedersales.com/wp-content/plugins/super-forms/uploads/php/files/f8d96aab019e0c18bbd41ea7267dcb5f/72105566637.pdfIn PDF document text
    • https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/c1e5e02b3c3ca5e603f0bd023f3420c8/bumidimonasumiriwuvid.pdfIn PDF document text
    • http://resortvillairene.it/userfiles/files/70462842835.pdfIn PDF document text
    • http://enjoy.sk/editor_uploads/system/files/wufukapefekovoxezi.pdfIn PDF document text
    • https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/miqjlvkla69bjnkv2e0n8ir3ls/15924146064.pdfIn PDF document text
    • http://uitvaartverzorgingsindex.nl/images/uploads/54573453207.pdfIn PDF document text
    • http://aimic.com/userfiles/file/petajule.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=learn+python+3+the+hard+way+4th+edition+pdf+downloadPDF 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_off0000d2fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2FB 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000eb12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB12 10832 bytes
SHA-256: 938549037c6e68e17a904b4f1fff64fd3912fa492213cdf876e1b8c9a8e56d2c
font_02_sfnt_off00010412.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10412 16444 bytes
SHA-256: 26ce8e7868cfd8ae0c4b431be8330eeaef404c20f665b9e46536d73849abe797

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