Malicious PDF — malware analysis report

Static analysis result for SHA-256 6237617f4cf1ed02…

MALICIOUS

PDF

69.9 KB Created: 2021-09-08 03:21:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: f6d4d46ab4f625f0f8841ddad9413a7b SHA-1: d7a8b014e960a503d21a77eb9c55e731cfed6fbd SHA-256: 6237617f4cf1ed02f75c452dacb27b29e9ff676ce3ba9ff25dbc70f8ff460246
154 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ClamAV and an ML classifier. It functions as a link farm, directing users to multiple compromised WordPress sites and other domains. These links likely lead to further malicious content or phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9130

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://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160e642467f312---numazefepevuludeti.pdf In PDF document text
    • https://laser123.com/geektic/files/28734139444.pdfIn PDF document text
    • https://www.loscam.com/lib_common/ckeditor/ckfinder/userfiles/files/vupeziwumade.pdfIn PDF document text
    • http://chono.mn/uploads/userfiles/files/51949797301.pdfIn PDF document text
    • https://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/326be9132ff1b28b7147edac8041eec1/lewarefipemopegugupev.pdfIn PDF document text
    • http://c2ctrading.org/cms_upload/files/nuravesoxesapipigupej.pdfIn PDF document text
    • http://xn--80aantfcaehjbxzf1m.xn--p1ai/userfiles/file/6988503503.pdfIn PDF document text
    • http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/1607b7d0b21805---fakititisu.pdfIn PDF document text
    • http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/160b5be9a91a8b---zekoditonuzuvoka.pdfIn PDF document text
    • http://www.photobreak.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b14f80830fa---rigosezesapuwirisazotat.pdfIn PDF document text
    • http://ambulanceservice.pl/userfiles/file/85578357558.pdfIn PDF document text
    • https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608498e25f52d---teradowo.pdfIn PDF document text
    • https://torbay.ru/images/uploads/file/zubevulepadifijejojigagow.pdfIn PDF document text
    • http://adamlegal.com/userfiles/file/bobuvuxiluxike.pdfIn PDF document text
    • https://enville.com/wp-content/plugins/formcraft/file-upload/server/content/files/160765b7205d25---sarevosibi.pdfIn PDF document text
    • http://english-life.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160718f6ce2840---tawapuwitakalumu.pdfIn PDF document text
    • https://www.bouldersudbury.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c077bb40261---51544008425.pdfIn PDF document text
    • http://banphimchuot.com/userfiles/file/telimuvakusov.pdfIn PDF document text
    • http://www.suffaheducation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607774a4aa5a4---98691486680.pdfIn PDF document text
    • http://ballstonfamilymedicine.com/clients/861402/File/jipuv.pdfIn PDF document text
    • http://mosjob.ru/images/file/91873286764.pdfIn PDF document text
    • http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160993c8132688---91394750340.pdfIn PDF document text
    • https://songod.vn/uploads/image/files/90222768742.pdfIn PDF document text
    • https://earthideasawnings.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084e5d087f61---8136126171.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=zorrilla+1993+libro+pdfPDF 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_off0000f060.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF060 10484 bytes
SHA-256: 0a19f7ecf9eac20df77714e02c4029ac2d3773236c62f08800167a0fe72efa9d

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