Malicious PDF — malware analysis report

Static analysis result for SHA-256 baad49449a458bd8…

MALICIOUS

PDF

44.2 KB Created: 2021-09-03 18:16:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: a21aef6e65c442526e478a23479ce712 SHA-1: 518899019a95f27c6203c3def4c4197eda23e7b7 SHA-256: baad49449a458bd8bc7789989466c1dfc24d5253cf19dd091a7db6f49608ca27
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to compromised websites or disposable hosting, suggesting a link farm or phishing lure. The presence of PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics further supports this, indicating the document's primary purpose is to redirect users to potentially harmful external content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7749

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://garglob.ru/uplcv?utm_term=low+cholesterol+diet+plan+pdf+spanish PDF link annotation
    • http://ronaldtan.nl/images/photo/tulezezoxijosaguruxiwad.pdfIn PDF document text
    • http://malifer.hu/upload/file/xepeximi.pdfIn PDF document text
    • http://kleiberit.ru/files/file/53342059353.pdfIn PDF document text
    • http://charolais-hessen.de/write/userfiles/file/kifawukuvanegefe.pdfIn PDF document text
    • https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160a1244789d4c---42394916324.pdfIn PDF document text
    • http://www.virtualaid.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160c9c786882cf---juvajupovexalovat.pdfIn PDF document text
    • https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612cbbf49613f---15480349273.pdfIn PDF document text
    • https://jfefood.com/wp-content/plugins/super-forms/uploads/php/files/44ed80c7e9afa18ed4c3335b82e65904/bamelefe.pdfIn PDF document text
    • https://www.wikiwebagency.it/wp-content/plugins/super-forms/uploads/php/files/3d700ce059af6d00d1cd6610f78a6633/nipodot.pdfIn PDF document text
    • https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1606c726b65849---62047901783.pdfIn PDF document text
    • https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/c51cd52ae82910da92cc1064c9cd0154/galex.pdfIn PDF document text
    • https://www.dishdivvy.com/wp-content/plugins/super-forms/uploads/php/files/6219ddf7ea5d6889a376fdbf4bbff6ed/sotefumagowixanuz.pdfIn PDF document text
    • https://rmduncanrealty.com/userfiles/files/mewawijupigiwosetun.pdfIn PDF document text
    • http://driver-jazda.pl/upload/file/69612177527.pdfIn PDF document text
    • https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/ba6397cdad3c85b49ebdc02f56949a10/29116997343.pdfIn PDF document text
    • http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c06a693370---xusoguxad.pdfIn PDF document text
    • http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d05f003307c---jonubosaluxetak.pdfIn PDF document text
    • http://bettynblue.com/upload/fck_img/20210625/file/52559158667.pdfIn PDF document text
    • https://aquaprosmart.com/userfiles/files/dusuwezeximatelavemesowav.pdfIn PDF document text
    • http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609fe8909b708---niwopobozumukuganu.pdfIn PDF document text
    • http://point-grey-1970-grads.com/clients/f/fe/fe7686cf254963525dc0bd811951f15e/File/lelukejadojejazuroferuf.pdfIn PDF document text
    • http://kwartetproforma.com/userfiles/file/gamofokotenetefun.pdfIn PDF document text

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