Malicious PDF — malware analysis report

Static analysis result for SHA-256 06bfe369361e3dba…

MALICIOUS

PDF

62.5 KB Created: 2021-08-29 02:10:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 7bcc636bbb9a7af6f611197d3482c3d4 SHA-1: 09b7cba26c711aeac9520902b1544db3d3dc80cf SHA-256: 06bfe369361e3dba323cff0f9ec43277058d39ebc0341cd24b840183afc8ba51
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link T1059.007 JavaScript

The PDF contains a link farm pointing to multiple compromised WordPress sites and disposable domains, a common technique for distributing phishing lures or malware. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or trojan delivery. While no scripts were explicitly extracted, the PDF structure and URL patterns suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9533

Heuristics 5

  • 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
  • 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://binarbaid.com/public_html/userfiles/file/jepaderebukepumopixe.pdf In PDF document text
    • http://blessingsngo.in/userfiles/files/xatedovojak.pdfIn PDF document text
    • https://self-storage.sg/images/uploadedimages/file/xatuxegadumufelopatugaw.pdfIn PDF document text
    • http://thestarbusan.net/FileData/ckfinder/files/20210623_2F55138AA3CCB1B1.pdfIn PDF document text
    • http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/16085c37588081---bokuzosapuvemazobadefomo.pdfIn PDF document text
    • https://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/c644d4165e4f93403a7145d9e341b771/42924178189.pdfIn PDF document text
    • https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160923f41bddff---51963101376.pdfIn PDF document text
    • http://topoint.cc/userfiles/fckFile/20210808174136.pdfIn PDF document text
    • https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/136f05f2642eda600959deec16530aa5/bolepab.pdfIn PDF document text
    • http://stananddiane.com/clients/6/67/672a2699e369d648dd23e03de9deda78/File/jusazuwalupunotowob.pdfIn PDF document text
    • http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070a852f3aac---3503240099.pdfIn PDF document text
    • http://verypool.cn/images/upload/File/96247257008.pdfIn PDF document text
    • https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1608b9f7a2ffb9---68775710185.pdfIn PDF document text
    • http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/160796bc2de323---56135439910.pdfIn PDF document text
    • http://ducthoaudio.com/upload/files/43717807980.pdfIn PDF document text
    • http://simkoongschool.com/uploads/editer/files/2991070685.pdfIn PDF document text
    • http://araonline.hu/uploads/file/wituvigesuled.pdfIn PDF document text
    • https://daluxerealty.com/wp-content/plugins/super-forms/uploads/php/files/2h7bfgbucrk5td12ja1r2bk7t3/sasenul.pdfIn PDF document text
    • https://vokalensemble-vocembalo.ch/userfiles/file/53951975624.pdfIn PDF document text
    • http://championshipsportsrings.com/clients/23492/File/sejugitelilobedopa.pdfIn PDF document text
    • https://www.propertyadvisersaustralia.com/wp-content/plugins/super-forms/uploads/php/files/f6768c46f5a67e7f7bf37ce18a7b107a/5722551113.pdfIn PDF document text
    • http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607725dde6ac6---22975220288.pdfIn PDF document text
    • http://tiwtactic.com/userfiles/files/xagomokorugerujifas.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=my+watch+keeps+stoppingPDF link annotation

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