Malicious PDF — malware analysis report

Static analysis result for SHA-256 69ce3a6b46a06d4a…

MALICIOUS

PDF

112.0 KB Created: 2021-07-01 22:17:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-15
MD5: cf82f4dab3912f536b1a2d42550ef784 SHA-1: b064da07d25ae636c77913fb3fbe4b2609252fd7 SHA-256: 69ce3a6b46a06d4a4210cbfd16b900ba3a3078231eee851037686225d80becd0
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous links to other PDFs hosted on compromised WordPress sites, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution via these chained links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9965

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://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cee4eb9a6d---figopevemi.pdf In PDF document text
    • https://www.westcountrystoves.co.uk/wp-content/plugins/super-forms/uploads/php/files/c1a04fc4c259e44dd1ecfbd976919878/5613899979.pdfIn PDF document text
    • https://arvikabc.com/images/uploadedimages/file/vafomoxamozufetud.pdfIn PDF document text
    • https://solarconsulting.org/wp-content/plugins/super-forms/uploads/php/files/a277220e2d52d5e8c85be0c129c801e5/6857924566.pdfIn PDF document text
    • http://poltinka.ru/userfiles/file/99056156757.pdfIn PDF document text
    • http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/160867de99da74---dunaf.pdfIn PDF document text
    • http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/160acaf841ec71---wobexexikebifokolebite.pdfIn PDF document text
    • http://minicabii.com/survey/userfiles/files/85491058931.pdfIn PDF document text
    • http://lighthouseofworship.com/clients/44803/File/sanilujafanowa.pdfIn PDF document text
    • http://reguitti-engineering.it/userfiles/files/63584701801.pdfIn PDF document text
    • http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/a3bfb60b3f42b4ba6c4b5eb4f1a6240c/32022188133.pdfIn PDF document text
    • http://edgecs.net/documents/63976615006.pdfIn PDF document text
    • https://diphong.com/uploads/fezirope.pdfIn PDF document text
    • https://unserbiokorb.ch/userfiles/file/37825722105.pdfIn PDF document text
    • https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a2a83559165---fiwov.pdfIn PDF document text
    • http://runningrhinelanderrabbitry.com/clients/875187/File/kovatiposiwage.pdfIn PDF document text
    • https://discoverapartmentsforrent.com/wp-content/plugins/super-forms/uploads/php/files/1b0601dd86edc48b6784a6605955549d/janigireluso.pdfIn PDF document text
    • https://akarchlight.com/wp-content/plugins/super-forms/uploads/php/files/cc96eb725466c3cf6ad56eb7571b8e31/31756707739.pdfIn PDF document text
    • https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/548b5eb273301c5e11419cdea36d20a4/genabofalagareronidujowen.pdfIn PDF document text
    • https://markeishahall.com/wp-content/plugins/super-forms/uploads/php/files/6c1eab3421401cf0d5c177c84ff2c5ac/mumexerejetu.pdfIn PDF document text
    • http://ei-windykacja.pl/upload/file/67827131290.pdfIn PDF document text
    • http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609884a31cd93---98458463592.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=weapons+of+the+spirit+biblePDF 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_off00015484.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15484 17656 bytes
SHA-256: af47af055284cdf4d8fb782f6ab72f7db242d78f551cedd8da905cd421ed621f
font_01_sfnt_off00018307.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18307 10588 bytes
SHA-256: 653920dffd8a81318a3c203d85e9222dd3e9ff2eddef126f8492d0df1c61b519
font_02_sfnt_off00019aed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19AED 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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