Malicious PDF — malware analysis report

Static analysis result for SHA-256 bccdf0e8ec6f224e…

MALICIOUS

PDF

73.5 KB Created: 2021-07-30 06:44:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: 267d6c267622789d232a06e40bf24e17 SHA-1: 0184b815a4debdefc05de2be03d1d3a5d85a88e2 SHA-256: bccdf0e8ec6f224e959fa83159a2053e30ef30f8489e9a57c2d8d3ea8aed2b4a
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links pointing to compromised websites, indicating a phishing or malicious redirection attempt. The ClamAV detection as 'Pdf.Phishing.Trojan' and the ML classifier further support its malicious nature. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest an attempt to lead the user to malicious content, likely for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7520

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://allmassage.net/upload/file/20210707052147.pdf In PDF document text
    • https://cursosgratuitosonline.es/wp-content/plugins/super-forms/uploads/php/files/flc5bp750rsh2l60gt51nm3vrn/ketubenajizezerixopete.pdfIn PDF document text
    • http://doggystylzgrooming.com/admin/photos/file/14973166641.pdfIn PDF document text
    • http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160fdeb8b74abe---davokimo.pdfIn PDF document text
    • http://mistralizmiryonetim.com/uploads/file/xikufotiduwuvasogetedikip.pdfIn PDF document text
    • http://phayaotechno.com/UserFiles/File/16157558095.pdfIn PDF document text
    • https://12shio3.com/contents//files/99494994042.pdfIn PDF document text
    • http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/c3322512f23f9eb1c1f8d314abff8d1b/sagifafugoremefisu.pdfIn PDF document text
    • https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2d5f3b8d9c---56346615278.pdfIn PDF document text
    • http://www.liveartsaskatchewan.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084c3c420f88---nidugiwagezakaxidagaba.pdfIn PDF document text
    • http://sahamit.net/userfiles/file/27515109962.pdfIn PDF document text
    • http://naasschoolofmotoring.com/fckeditor/userfiles/file/wanebisofezixuzipiba.pdfIn PDF document text
    • https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/93966d09e642b749abded4007d2b0043/forafisojebebonusozijotup.pdfIn PDF document text
    • http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/160db499704ea3---guvuxidagonevuvanelujeb.pdfIn PDF document text
    • https://pt2-turbo-j3t.com/contents//files/xuxizetevabujagisiler.pdfIn PDF document text
    • https://torrentclub.vip/wp-content/plugins/super-forms/uploads/php/files/203mgehpsp2ge2ic8bh9e5c0bc/muvekunetopuxudop.pdfIn PDF document text
    • https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160d889861a00c---71997977785.pdfIn PDF document text
    • http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5cf5955148---43506703200.pdfIn PDF document text
    • http://erbamedica.org/userfiles/files/33627326013.pdfIn PDF document text
    • http://www.kinoimaging.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c535d40123f---vakezalozago.pdfIn PDF document text
    • https://bititechnika.com/uploads/file/jasewodigubitujuso.pdfIn PDF document text
    • https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f9c9509afa2---74216008497.pdfIn PDF document text
    • http://www.ellisrasbetonwerke.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160c3ad0dafedf---73344755946.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=what+ingredients+is+in+a+strawberry+daiquiriPDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ec3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC3D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1