Malicious PDF — malware analysis report

Static analysis result for SHA-256 00f590d85878ec74…

MALICIOUS

PDF

85.2 KB Created: 2021-06-26 22:59:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 85dba16700f9f2a98178dd46f1ad8d06 SHA-1: 5c3ab18f9c251f51e4f59c9586e3c0d9e7c0845a SHA-256: 00f590d85878ec742c3c3b8ec36be0a8f4b152cd6c624bd417fec2b727a27604
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was detected by ClamAV as Pdf.Phishing.Trojan and flagged by an ML classifier, indicating malicious intent. It contains numerous links pointing to compromised websites, suggesting a link farm designed to redirect users to malicious content. The presence of PDF link farm heuristics and embedded URLs strongly supports a phishing or malware distribution attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/51ok393cjsp7mv7mb0t4lpndpe/81625249997.pdf In PDF document text
    • https://sandalyecenneti.com/wp-content/plugins/super-forms/uploads/php/files/jeknvbis91hvu0g95ht5a852d7/fevatavofafutobarajusod.pdfIn PDF document text
    • http://www.dismaplant.com/ckfinder/userfiles/files/pipezaritexibenuxefulas.pdfIn PDF document text
    • http://4seasonstours.in/userfiles/file/bigid.pdfIn PDF document text
    • https://angkorphotographyguide.com/userfiles/file/29514628739.pdfIn PDF document text
    • http://bezpieczna-strefa.pl/wp-content/plugins/super-forms/uploads/php/files/948a2562328a6460199cb40c0f77e904/94464822165.pdfIn PDF document text
    • https://www.northwoodmedical.ca/wp-content/plugins/super-forms/uploads/php/files/u13q7tjhpc4f0644mr9f3bc27v/25897759795.pdfIn PDF document text
    • https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160a0ec5fe0cfc---16288732180.pdfIn PDF document text
    • https://www.actionconstructionjax.com/wp-content/plugins/super-forms/uploads/php/files/ad85f3b57afbc820dc212b4d6e0d6e32/jofejitifekelano.pdfIn PDF document text
    • http://www.adatechotomasyon.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607836aaacc01---33425346706.pdfIn PDF document text
    • http://fanti-fitness.pl/uploads/assets/file/51668842870.pdfIn PDF document text
    • https://loyallcanada.ca/editor_files/file/pipanifoju.pdfIn PDF document text
    • https://avantkart.com/wp-content/plugins/super-forms/uploads/php/files/6k5cgamc3cjc3maim278l4kms3/45533952383.pdfIn PDF document text
    • https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/9c6ce6b7ab067c211b4b89643ad24616/6037366871.pdfIn PDF document text
    • http://winterwonderlandzundert.nl/uploadimages/files/vorixobamejefidutanabumu.pdfIn PDF document text
    • http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160a4c5fd3b9a7---3431072379.pdfIn PDF document text
    • http://alexlunacoach.com/img/editor/file/godokino.pdfIn PDF document text
    • https://flexrocksrollovers.com/wp-content/plugins/super-forms/uploads/php/files/6e41grj1i06g05bhe72uoc48a9/rubowomopazi.pdfIn PDF document text
    • https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/cee7765dfa1cc2e50164423234e45ccc/tanomorelipapugapidirabon.pdfIn PDF document text
    • http://southport1969.com/clients/861680/File/11721075762.pdfIn PDF document text
    • https://adepotcustom.com/UploadFiles/file/20210430011515197.pdfIn PDF document text
    • https://fenixfalt.com/userfiles/file/12585269814.pdfIn PDF document text
    • https://digireg.es/upload/zexonevete.pdfIn PDF document text
    • https://www.couleurs-et-jardin.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16081246e4c9c3---39526432240.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=business+email+communication+skills+pdfPDF 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_off0000eaa5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAA5 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off000102bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102BC 10928 bytes
SHA-256: 700c455560978896992aceea7ee4b5535a6f3d332da193be6ce6fff322857514
font_02_sfnt_off00011c0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C0F 16800 bytes
SHA-256: 4274b8626c7856ba561850cce5dc470c8504c4a4e3411657d049e141a3d86ecc

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