Malicious PDF — malware analysis report

Static analysis result for SHA-256 b15b1360e92ba123…

MALICIOUS

PDF

70.7 KB Created: 2021-07-07 04:31:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 64934c65e1a2108d216c1ac3c22c3089 SHA-1: 6da5f5ec835e0a4cdc17edd9b40bcb2fb2a3d672 SHA-256: b15b1360e92ba123f46dc9870c614ca087d8be3d5b45b74b2f71b9c1c74ebd7f
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs pointing to compromised WordPress sites, indicating a link farm designed to lure users to malicious content. The ClamAV detection and ML classifier further support its malicious nature. The primary purpose appears to be redirecting users to potentially harmful sites, aligning with phishing or malware distribution tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7210

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.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9f3b19d918---jupozamuvededuresune.pdf In PDF document text
    • http://dentherapia.hu/files/file/45437400868.pdfIn PDF document text
    • https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608f3f1c85de4---79889231574.pdfIn PDF document text
    • https://3dreamvr.com/wp-content/plugins/super-forms/uploads/php/files/1ac8772a81d57744a7c8f6fd2d482288/59915433953.pdfIn PDF document text
    • http://adamlegal.com/userfiles/file/zavugawumotaxusudojuloz.pdfIn PDF document text
    • http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16086d2de97c4b---61992496394.pdfIn PDF document text
    • http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/160772658827b6---tuwinam.pdfIn PDF document text
    • http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16080447d7e16c---93594938887.pdfIn PDF document text
    • https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160aeb35573e47---64930063790.pdfIn PDF document text
    • http://www.firengo.com/userfiles/files/85235830093.pdfIn PDF document text
    • http://johncarroll1967.com/clients/1/18/1896e795ecc2602204d707ec4e69586f/File/gutosa.pdfIn PDF document text
    • http://barcabianca.eu/upload/file/39544922353.pdfIn PDF document text
    • https://dodatkireklamowe.pl/web/uploads/files/wopigotavivuxi.pdfIn PDF document text
    • http://fairmonteast1969.com/clients/876766/File/zoleruforigudado.pdfIn PDF document text
    • https://ontime-taxi.kg/wp-content/plugins/super-forms/uploads/php/files/5ca474c5320f13741f412c48dda5117e/sodalaled.pdfIn PDF document text
    • http://robalton.es/Albums/images/file///13881637986.pdfIn PDF document text
    • http://www.veronicaneal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/160bafe6a17cc5---57758438284.pdfIn PDF document text
    • http://ahlhy.com/uploads/file/29190045507.pdfIn PDF document text
    • https://technok.cz/wp-content/plugins/super-forms/uploads/php/files/b3add73fcd710aa31d4bf186ce9fe445/vimapobavisumogemopimesak.pdfIn PDF document text
    • https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c755be9a591---jizabuw.pdfIn PDF document text
    • http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/dfd0063b4b0f8462009f1166fa6a0fe9/52255695348.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=south+pole+adventurer+answersPDF link annotation

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