Malicious PDF — malware analysis report

Static analysis result for SHA-256 07467a5d9829db9a…

MALICIOUS

PDF

73.3 KB Created: 2021-09-02 09:32:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: aa24e0b903de9dd70a5ff7b776ac5be9 SHA-1: c69db3d3567738cc334c6b7125ef404cd1e20063 SHA-256: 07467a5d9829db9a3c16908273cb84696887e765a87659efb6ec27bad7fab059
154 Risk Score

Malware Insights

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

The PDF contains a large number of links, many of which point to compromised WordPress sites. This behavior is indicative of a link farm used to distribute malicious content or conduct phishing attacks. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8891

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 http://go-trec.com/wp-content/plugins/super-forms/uploads/php/files/94f5t1or8dc2t44lathujmp82c/devuso.pdf In PDF document text
    • https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609da59e680a3---50046833093.pdfIn PDF document text
    • http://mail-ex.net/userfiles/file/xofogebesu.pdfIn PDF document text
    • http://ghioroiu.ro/sites/default/files/file/40413157728.pdfIn PDF document text
    • https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/6835d429197667c70b82d72839f2f481/gavenusemijafeta.pdfIn PDF document text
    • https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/1610d6de805d5e---waxejaduromiteduwul.pdfIn PDF document text
    • https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f6832644ff---gagadopadu.pdfIn PDF document text
    • http://russkiivopros.com/images/FCKeditor/file/gelilomusuvutudade.pdfIn PDF document text
    • https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e4a93aeaeba---53148814490.pdfIn PDF document text
    • https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/1607a1d47eb7d6---57051795034.pdfIn PDF document text
    • https://hunghiephuylog.com/upload/files/29950537102.pdfIn PDF document text
    • https://essuances.com/ckfinder/userfiles/files/vozejalasenonox.pdfIn PDF document text
    • http://capitaloffice.pl/fotki/file/95139317267.pdfIn PDF document text
    • https://tenfci.org/userfiles/file/16747493150.pdfIn PDF document text
    • http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/161295634864dc---55775980119.pdfIn PDF document text
    • https://wurstfargo.com/wp-content/plugins/super-forms/uploads/php/files/b5c4017e6faabd9694d426c765a6876a/pedaxejiwiv.pdfIn PDF document text
    • http://perfekttorun.pl/pliki/45658477420.pdfIn PDF document text
    • https://jnfarley.com/wp-content/plugins/super-forms/uploads/php/files/9ivg6hnfat9l61l05cds8q8fc2/68654360069.pdfIn PDF document text
    • http://ecovn.vn/uploads/news_file/zolelajose.pdfIn PDF document text
    • http://geerhannutpourreussir.be/docs/upload/files/66869302545.pdfIn PDF document text
    • https://matrainagycsalados.hu/userfiles/file/52090408680.pdfIn PDF document text
    • http://trunglam.vn/uploads/userfiles/file/63430505823.pdfIn PDF document text
    • https://digitaldaya.com/imagenes/file/tososefariralaz.pdfIn PDF document text
    • http://raunlarose.us/wp-content/plugins/formcraft/file-upload/server/content/files/1606eb59d51ba0---46579214699.pdfIn PDF document text
    • http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/160aa6a2cb78f5---jesomiwe.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=chariots+of+fire+sheet+music+free+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_off0000f98c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF98C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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