Malicious PDF — malware analysis report

Static analysis result for SHA-256 f06f70091599770c…

MALICIOUS

PDF

59.6 KB Created: 2021-08-09 06:07:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: 11d1ff38aa0dedef0179c6cacd19c3fe SHA-1: e487704d814de5a3c0ad9c83d63539e3cf3f50d3 SHA-256: f06f70091599770cfa2ec9d7496e71013535ee31dc2ce9cebd92eace76f41e13
154 Risk Score

Malware Insights

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

The sample was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, distributing numerous URLs that point to compromised WordPress uploads and other disposable hosting sites. These links are likely intended to lure users to malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8902

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.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160a7ecd5e8fb3---xubexexorixomub.pdf In PDF document text
    • https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/160ded8bbdd407---20044889661.pdfIn PDF document text
    • http://www.cbs-emballages.com/upload/file/zijoxax.pdfIn PDF document text
    • http://czytamzezrozumieniem.pl/userfiles/file/mopimukub.pdfIn PDF document text
    • https://aokman-drive.com/d/files/68496710972.pdfIn PDF document text
    • http://steelfurniturecn.com/d/files/86227474591.pdfIn PDF document text
    • https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/38ugsv4dah4p7kj8tnsgomeg1t/liguka.pdfIn PDF document text
    • https://typeone.com.my/ckfinder/userfiles/files/zugimuzuloxajuvovero.pdfIn PDF document text
    • http://wypelnienia.kratex.pl/wp-content/plugins/super-forms/uploads/php/files/9e17cad73d1a9a7485d16978700f2394/mixanemeva.pdfIn PDF document text
    • https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/160ee61aece6f1---fomorubol.pdfIn PDF document text
    • http://maivietnamesecotati.com/uploads/files/54742733092.pdfIn PDF document text
    • https://mygo.com/ckfinder/userfiles/files/55558898134.pdfIn PDF document text
    • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/160e5f98fe9a74---20674438424.pdfIn PDF document text
    • http://safarang.com/basefile/files/30617129668.pdfIn PDF document text
    • https://likeevent.it/writable/public/userfiles/file/lapufovijekuvi.pdfIn PDF document text
    • https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ce48b261566.pdfIn PDF document text
    • http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610107888298a---56085240326.pdfIn PDF document text
    • https://greenfuturevietnam.com/Upload/files/tedugarewipezobejepofat.pdfIn PDF document text
    • https://floridaholidayplanner.com/wp-content/plugins/super-forms/uploads/php/files/6187df8d4f5b11e533ca3f4b07180ecf/31345167534.pdfIn PDF document text
    • https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/6cfb6340a3f58fdf672126c4e739f59d/vanawujuxesigimazanogu.pdfIn PDF document text
    • http://macautemple.com/userfiles/file/fuvokuropubebowawapuzog.pdfIn PDF document text
    • http://trevelci.ru/ckfinder/userfiles/files/misolelukej.pdfIn PDF document text
    • http://hk-dcc.com/wp-content/plugins/super-forms/uploads/php/files/6jefv1tjj481partnIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=jingle+bells+piano+duet+sheet+music+freePDF link annotation

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