Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bccd63ced559e6b…

MALICIOUS

PDF

58.0 KB Created: 2021-06-28 08:48:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 1acca5f08a79ac697c7e333120e50d33 SHA-1: 705ae03130f9e95314f9548d463ceb97624ce94c SHA-256: 0bccd63ced559e6bbe0792602e61c7bc462f1d42150d824745d85524c0395e4e
154 Risk Score

Malware Insights

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

The PDF contains a large number of external URIs and links to compromised WordPress upload storage, indicating it functions as a link farm. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for phishing or malware delivery through these links. No scripts were extracted, and the document body was unreadable binary data.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5046

Heuristics 5

  • 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
  • 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://garglob.ru/uplcv?utm_term=piano+notes+see+you+again PDF link annotation
    • http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/8e29452f1a17eebf35a5f98981052d70/41229402335.pdfIn PDF document text
    • http://cheers-gifts.com/userfiles/43816600031.pdfIn PDF document text
    • http://wmehoa.org/clients/d/df/dff1b85474dadb967ea0c40f6d5e37f8/File/14875331066.pdfIn PDF document text
    • https://stefandes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096c1655c066---35084855635.pdfIn PDF document text
    • https://aprilboya.com/userfiles/file/96715944713.pdfIn PDF document text
    • http://mizuho-co.net/file/ck/files/72905076719.pdfIn PDF document text
    • https://bancodevida.com/bancodevida/admin/images/image/file/62798561252.pdfIn PDF document text
    • https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/5c5d5fe8847d616b19fb83347665632a/xolisizemewukegol.pdfIn PDF document text
    • http://alexanderkanevskyartistbiography.com/clientMedia/file/79070686144.pdfIn PDF document text
    • https://mytalk7.com/_UploadFile/Images/file/rikipofelovefalibexodabe.pdfIn PDF document text
    • https://wholisticvibrations.com/wp-content/plugins/super-forms/uploads/php/files/452b1310842d7f373644e335b0ab4bd4/97385160521.pdfIn PDF document text
    • https://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/160d5e7f39359a---41836105641.pdfIn PDF document text
    • https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/umcj5f01a8n705454o2ghbvb71/49434049665.pdfIn PDF document text
    • https://kovtec.pl/eurostyl/photos/file/94116413198.pdfIn PDF document text
    • http://srihemkuntsahibfgp.org/hemkunt/userfiles/file/mewogubaputojugusixuno.pdfIn PDF document text
    • http://amctop.com/board_data/editor_img/file/202105191021.pdfIn PDF document text
    • https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bafb83ae7e5---zefimubunufuwiliputis.pdfIn PDF document text
    • http://blog.crowdly.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4e7dba02be---gosogiranukifokedirubaka.pdfIn PDF document text
    • http://drivingschool-brno.eu/files/17506165189.pdfIn PDF document text
    • https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/2f08d1d8ef11c79cd9eb3d3eb7007da1/14843033131.pdfIn PDF document text
    • http://sh-ruiyangcpa.com/userfiles/file/2021-6///2021626116568038.pdfIn PDF document text
    • https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/fd4f04c4e654ea57eee0b47962893423/10390779925.pdfIn PDF document text
    • http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/1u0m2e60jjq7rmnna2ehbsokd3/79876501053.pdfIn PDF document text
    • https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/346b87990f52bda5ea31ec3f47b9d644/nogutesojefuratupojikusok.pdfIn PDF document text
    • https://ei-hotel.com/free_images/files/76928198372.pdfIn PDF document text

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