Malicious PDF — malware analysis report

Static analysis result for SHA-256 d370c2f1abeac2cd…

MALICIOUS

PDF

62.5 KB Created: 2021-07-22 22:30:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: 6b7a4d8258d5fb372781d3ee128b2816 SHA-1: a023cf8b1624652da953797f5dc4ba9823e022e2 SHA-256: d370c2f1abeac2cd8b7a1bcd2599e08dee93fcb1072e63df5a4126eb5a1e1273
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was identified as malicious by ClamAV and an ML classifier, indicating it is likely a phishing or trojan distribution attempt. The document functions as a link farm, containing numerous URLs pointing to potentially compromised websites, suggesting an attempt to redirect users to malicious content or exploit kits. The presence of multiple links on disposable or compromised hosting reinforces the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9762

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 http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/e66365aa957bdfc99469fe29e2627804/2275773578.pdf In PDF document text
    • http://palaciodelosnavas.com/userfiles/file/1231039061.pdfIn PDF document text
    • http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16085849a94cf5---95629007275.pdfIn PDF document text
    • https://swimproject.eu/wp-content/plugins/super-forms/uploads/php/files/de01cdb76ea1c102c89319e2b459872e/tokojuwewafaxavi.pdfIn PDF document text
    • https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16084527f3b1e7---86812380867.pdfIn PDF document text
    • http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16072157a4e890---juduladoditedebad.pdfIn PDF document text
    • http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca96472b3c---xibowalonugobuvoruto.pdfIn PDF document text
    • http://www.argentum.com/wp-content/plugins/super-forms/uploads/php/files/r54r03ib939tmnu701qemlhvpl/51016132151.pdfIn PDF document text
    • http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160e419aba23ee---2452697467.pdfIn PDF document text
    • https://www.jscorporation.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/1608bb82adc0f7---jizurogitobawok.pdfIn PDF document text
    • http://www.ecvbrass.ch/user/web/file/pijobelo.pdfIn PDF document text
    • https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b77fbfcc003---60161808630.pdfIn PDF document text
    • https://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/f21eed9afb15910ce583097f28e9c004/65881163604.pdfIn PDF document text
    • https://nwdglobal.com/ckfinder/userfiles/files/45636499217.pdfIn PDF document text
    • https://happycustomerservice.com/wp-content/plugins/super-forms/uploads/php/files/7700c52f36efc27fcd92326d28daa9b3/87256380268.pdfIn PDF document text
    • http://odpadykj.cz/UserFiles/File/lipabuzuzelupilifaxij.pdfIn PDF document text
    • https://bojovicsirogojno.com//files/83165670527.pdfIn PDF document text
    • https://cavalier-hundezucht.ch/userfiles/file/13850615000.pdfIn PDF document text
    • http://anandamsanyal.com/userfiles/file/xilebimexubasik.pdfIn PDF document text
    • https://terminal.hr/userfiles/file/supojixofakijewesase.pdfIn PDF document text
    • https://slavica.ru/wp-content/plugins/super-forms/uploads/php/files/75634ada730cac78582c97f83d9c05e2/didubuxukol.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=ignou+assignment+submission+form+pdfPDF link annotation

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