Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b97fb7390ddb7fd…

MALICIOUS

PDF

65.1 KB Created: 2021-09-05 10:17:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 857b80a0fd2f0e98081b34c687dd4af8 SHA-1: e4ea0b2d1ac736e6dab5321ed98fe1b8f71d32aa SHA-256: 1b97fb7390ddb7fd21cf027ab173e0593b8d1a8c8c3f2f0021c7d08087ff9a8b
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains embedded JavaScript and is identified as a link farm hosted on compromised WordPress upload storage. The heuristics indicate it's designed to direct users to multiple external websites, likely for phishing or malicious redirection. The embedded JavaScript is a common method for executing malicious actions within a PDF document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6403

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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 http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160726acd1e2ee---gavegirizinasam.pdf In PDF document text
    • http://asbu.net/uploads/FCK_files/file/17471706851.pdfIn PDF document text
    • http://goddesshair.net/upload/users/files/zexomoburiga.pdfIn PDF document text
    • http://hoanggiaphatland.com/uploads/image/files/13776925504.pdfIn PDF document text
    • http://nsdadventist.org/FCKData/file/rigowavogari.pdfIn PDF document text
    • http://pinzimoniofiumicino.eu/userfiles/files/rekode.pdfIn PDF document text
    • https://yucekalipmakina.com/tsrm1/img/userfiles/file/86848512119.pdfIn PDF document text
    • http://istrouma1971.com/clients/9/9b/9b88b062b8d6af44b28e209fcb06d7d5/File/75784313619.pdfIn PDF document text
    • http://machi-tomo.xyz/js/ckfinder/userfiles/files/tufawawoduxi.pdfIn PDF document text
    • https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2f7e5a1c10---20684406808.pdfIn PDF document text
    • http://greenbiotech.vn/uploads/userfiles/file/76601778747.pdfIn PDF document text
    • https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/0569cae2eabc9bb4c820a4a487d2154a/34906840094.pdfIn PDF document text
    • http://gesema.com/UserFiles/file/terofop.pdfIn PDF document text
    • https://matfplayer.com/calisma2/files/uploads/delepavedepizitexozaki.pdfIn PDF document text
    • https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609bd4c12ae4b---dosesuk.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070cbc4bf009---kesudosudaxosoxaveki.pdfIn PDF document text
    • http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/1609173875bbf9---fetutiwekoxibazo.pdfIn PDF document text
    • http://kaushalacademy.org/ckfinder/userfiles/files/23858153859.pdfIn PDF document text
    • http://chinalabware.ru/d/files/13344562255.pdfIn PDF document text
    • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/7b3fa69424b15998421407d50a7fb375/23816903723.pdfIn PDF document text
    • https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074c476d4e92---timazarumokipitap.pdfIn PDF document text
    • http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606dd981b4472---pukefulusopuru.pdfIn PDF document text
    • http://jrmhandling.nl/upload/file/29261345276.pdfIn PDF document text
    • http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160752344b96e1---14167938859.pdfIn PDF document text
    • http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/1608936999bad3---fixibitu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=ryobi+bench+grinder+manualPDF link annotation

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