Malicious PDF — malware analysis report

Static analysis result for SHA-256 eafa14b5fcde2e0b…

MALICIOUS

PDF

54.7 KB Created: 2021-07-04 04:56:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-27
MD5: 3512a0ca2580c4d0419ae32ae29c124d SHA-1: 7c14e0ba6f0299914fcac3147adbb3560077ff78 SHA-256: eafa14b5fcde2e0b83d0dbbc88ea0d013b4e92ceacb8ce40a096a0dc2c98c401
154 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as a phishing trojan and by an ML classifier as malicious. Heuristics indicate it functions as a link farm, with many URLs pointing to compromised WordPress upload directories and disposable hosting. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, suggesting it's not intended for direct user reading but rather to host links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6190

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://3dreamvr.com/wp-content/plugins/super-forms/uploads/php/files/a566991ef310cce03d0660299e899750/leputisajuwarim.pdf In PDF document text
    • https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/9b49840edbbc2ed1976199d9975a05ce/42140221504.pdfIn PDF document text
    • https://egyptsuntours.com/userfiles/files/67568060483.pdfIn PDF document text
    • http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609145bc39c28---51819683826.pdfIn PDF document text
    • http://amuseonline.com/absite/userfiles/file/84229022661.pdfIn PDF document text
    • http://xn--h49avwqct32ewe967crscpsaz7d.com/ckupload/files/71335005130.pdfIn PDF document text
    • http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a7fb909a78---78863830265.pdfIn PDF document text
    • http://venusland.vn/app/webroot/img/files/3429402914.pdfIn PDF document text
    • https://thefertilizerequipment.com/d/files/23527550240.pdfIn PDF document text
    • https://footballsod.com/images/ck-uploads/files/fukuleferijitasokoka.pdfIn PDF document text
    • http://beerskiboot.com/img/upload/file/nefokigazowex.pdfIn PDF document text
    • https://mattress-leader.com/media/zenodiwezidemojixilewor.pdfIn PDF document text
    • http://kondicionery-krasnogorsk.ru/upload_picture/file/kilafenefo.pdfIn PDF document text
    • http://www.misshandicap.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160987b5d7d64c---defononotonozen.pdfIn PDF document text
    • http://berallebags.com/UploadFiles/FCKeditor/20210523174823.pdfIn PDF document text
    • https://www.spreefahrten-berlin.de/wp-content/plugins/super-forms/uploads/php/files/e3l15hfbanob1fia864torab76/90544653123.pdfIn PDF document text
    • http://www.lbf-cosmetics.com/website/wp-content/plugins/formcraft/file-upload/server/content/files/160cdadc09149f---posovezezogo.pdfIn PDF document text
    • http://xn--ob0bjxt9h99icicrvkksa421cwwp7hiv4d6a.net/ckfinder/userfiles/files/11832045022.pdfIn PDF document text
    • https://ildiko-szepsegszalon.hu/userfiles/file/52067084771.pdfIn PDF document text
    • https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/5b36a6f7fe39ba1c8aa5f00d523d7bd8/devuw.pdfIn PDF document text
    • https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/160919b1f0d1c3---mufuditud.pdfIn PDF document text
    • https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/a8d7e09424a0d6c6249e6313c37d6ac9/welujabife.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=lateral+sacrum+x+rayPDF link annotation

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