Malicious PDF — malware analysis report

Static analysis result for SHA-256 fda33331974b7998…

MALICIOUS

PDF

84.7 KB Created: 2021-07-04 02:54:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: b4c153baa799756431c2341a77297696 SHA-1: 2bbd0f21c66bbdfb209d67bf8cdf9a44be9cc0c9 SHA-256: fda33331974b799849345dc39347d4917e50ea0a312a28d6a6e61567da6c1c27
156 Risk Score

Malware Insights

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

The PDF contains numerous links to external websites, many of which are hosted on compromised CMS platforms. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to phish users or lead them to exploit kits. The document body is heavily obfuscated and unreadable, suggesting it's designed to hide its true purpose.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9849

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://yourlightingbrand.com/wp-content/plugins/super-forms/uploads/php/files/0e6fcc94c8b9c22cb76b36ef95db2cfd/punizanipoxedomepip.pdf In PDF document text
    • http://anonelectronics.com/admin/fckeditor/editor/filemanager/connectors/php/upload_jpg/file/202106201741135921.pdfIn PDF document text
    • https://travelinnsuites.com/nbloom/fckuploads/file/nunarivoxuvevaronelasa.pdfIn PDF document text
    • https://omomediacion.com/wp-content/plugins/super-forms/uploads/php/files/848218e4221ac14c793656a7e1af291f/ziduwoviwapinixed.pdfIn PDF document text
    • http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c38ebbec671---vununubavaxar.pdfIn PDF document text
    • https://www.higher-energy-trampolineclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae55da2bcf6---depalozozijoved.pdfIn PDF document text
    • http://alituncer.com/userfiles/file/lejadaguribe.pdfIn PDF document text
    • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/7qjkd9euapep6bf9amgkias3v6/remir.pdfIn PDF document text
    • https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d7f49a85fd6---zevekukobuvata.pdfIn PDF document text
    • http://a-kamen.com/userfiles/file/bajivinupuxibezax.pdfIn PDF document text
    • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/b2gcpq3b8uag52kdc11ekiqcsh/37834811999.pdfIn PDF document text
    • https://europeancustomtailor.com/wp-content/plugins/super-forms/uploads/php/files/fb66f9212accaaf2956a2c7cf225998c/zapivinutiw.pdfIn PDF document text
    • http://toshiteriyakiburien.com/uploads/files/bagutigabiduvakusu.pdfIn PDF document text
    • https://stollerco.com/testingsites/advantage_aviation/assets/media/file/taromuvijaliniresegegokar.pdfIn PDF document text
    • http://chiari-web.com/ckfinder/optimist/files/9460789279.pdfIn PDF document text
    • http://shinserviceodi.ru/wp-content/plugins/super-forms/uploads/php/files/50bcbd6fe100f59dbae85403f3a8bcb0/47522036420.pdfIn PDF document text
    • http://talleresjpg.es/img/file/zigoxikemipateli.pdfIn PDF document text
    • http://bjzjygj.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/17517448339.pdfIn PDF document text
    • http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160924d5f6ef2b---fanasugej.pdfIn PDF document text
    • https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/1a547d26641f33106931ce401d951b9c/kurikusadativo.pdfIn PDF document text
    • https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160da1f26e92d5---56908405529.pdfIn PDF document text
    • https://realestateconnect.us/wp-content/plugins/super-forms/uploads/php/files/aks7m7ue61vfid8msl9hasj4p2/lipabebudefedepixaxi.pdfIn PDF document text
    • https://www.sacda.org/wp-content/plugins/super-forms/uploads/php/files/ijjp8naj50jr8mo9b40jjf5qo2/10447110954.pdfIn PDF document text
    • https://svetpoznaniyaonline.ru/wp-content/plugins/super-forms/uploads/php/files/4624bedb0d107b32a4691ed08bc00e34/9220922674.pdfIn PDF document text
    • http://myshopekerala.com/userfiles/file/jesabukagolofokaziwowiv.pdfIn PDF document text
    • https://rjiminfra.com/wp-content/plugins/super-forms/uploads/php/files/39960be1fda96bbb267f01990e51a862/boxolirotularuzexegaf.pdfIn PDF document text
    • https://cornwallstaffagency.com/userfiles/file/4082914192.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=pdfs+to+one+filePDF 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_off0000eacd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEACD 16892 bytes
SHA-256: e2a06555f2400c739343ce552cb019f9aa05dee5a756298eecfe466660029b18
font_01_sfnt_off00011712.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11712 10088 bytes
SHA-256: e47ca1b0443dc342d558434a3ce66106b6f1b6cea90aa5f53ecfb7c2986ca8c1
font_02_sfnt_off00012da3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12DA3 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1