Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c15bd93ee437e04…

MALICIOUS

PDF

48.0 KB Created: 2021-07-14 01:43:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-21
MD5: 0ea9095500541d208849a8b3e177209b SHA-1: e531321a03daf7477e61784fdb8d5c4eea5e0786 SHA-256: 2c15bd93ee437e0478e336620940a24988b0a7d36cf01a360fd0c033fd3e143f
154 Risk Score

Malware Insights

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

The PDF file contains numerous links, many of which point to websites hosted on compromised CMS upload storage, indicating a link farm designed to redirect users to potentially malicious content. The ClamAV detection and ML classifier further support its malicious nature. The primary attack pattern observed is the use of malicious links within the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6237

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 https://pametnidom.hr/pametne_kuce/userfiles/file/87236337149.pdf In PDF document text
    • https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/69df46e256b7265439342532a715fa44/16143978223.pdfIn PDF document text
    • https://al-farh-iq.com/upload/userfiles/file/zatajawerazukazokonivaxe.pdfIn PDF document text
    • http://builderall.info/userfiles/file/98045402019.pdfIn PDF document text
    • http://www.morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a81986c1e0---10519515410.pdfIn PDF document text
    • http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ee0f62b191d---xejirozebiruxewamubodinig.pdfIn PDF document text
    • http://titadoorbinhduong.com/upload/files/muzapazimudawuzum.pdfIn PDF document text
    • https://asiatravel.kg/wp-content/plugins/super-forms/uploads/php/files/79e6a3aca38b574135ac5d7f8095a1fe/wirunuzanipadonemaruba.pdfIn PDF document text
    • http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ec5f76e7ba---54947899380.pdfIn PDF document text
    • http://otvorene-srdce.sk/userfiles/file/70743128829.pdfIn PDF document text
    • http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/3530609214ccb8fccce20f52e7222d45/48015486632.pdfIn PDF document text
    • https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160d97e761d75f---gosifilad.pdfIn PDF document text
    • http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607117588385c---motakiraw.pdfIn PDF document text
    • https://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/928etsnsa566mdumb79lch44ll/wipimupu.pdfIn PDF document text
    • http://sns-russia.ru/userfiles/file/52707635031.pdfIn PDF document text
    • http://mountmedpharmacy.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16085c1dce0b3c---pifekafevubufirowufavav.pdfIn PDF document text
    • https://www.elementstraining.co.uk/wp-content/plugins/super-forms/uploads/php/files/4bmb1fjkvv6vrm76pmnbjsf849/97861351774.pdfIn PDF document text
    • https://delaneyllc.com/ckfinder/userfiles/files/95582785427.pdfIn PDF document text
    • https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607c26602ddfd---2149798308.pdfIn PDF document text
    • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/d2v1k9ddaf5datbjogl2004fu2/81985656243.pdfIn PDF document text
    • http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160aab5b80862e---vajiwifesonadijimivojefe.pdfIn PDF document text
    • http://skisun.it/userfiles/files/62932273094.pdfIn PDF document text
    • http://hauptlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/69145984571.pdfIn PDF document text
    • http://www.tamtrebinhminh.com/public/files/wepozisofanezedovobofevav.pdfIn PDF document text
    • http://www.restorationservice.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160ae0fdc65ab6---xopukixebovefadodoxodif.pdfIn PDF document text
    • http://www.deopendeur.org/imgUser/file/85976379442.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=concise+guide+to+macroeconomics+pdfPDF link annotation

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