Malicious PDF — malware analysis report

Static analysis result for SHA-256 f383367ed2eb5f6c…

MALICIOUS

PDF

64.0 KB Created: 2021-07-26 17:42:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: 7bdee1be668d20f8620caddbd9a48d9d SHA-1: 256269e0951ba0e64c6fb6b6e7112dea7ef16849 SHA-256: f383367ed2eb5f6cc494db7b6a6bd02dc40009c5113877a7ba0d454ac23effd1
154 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The file contains numerous links pointing to compromised CMS upload storage and disposable hosting, suggesting it functions as a link farm to distribute further malicious content. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9597

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.moteco.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160f3e221a5b5d---rodipuwivikejemudabu.pdf In PDF document text
    • http://ahkjt.com/upfile/file/kabamejerawe.pdfIn PDF document text
    • http://cadeco.com/testingsites/advantage_aviation/assets/media/file/vewititededapaxonobupos.pdfIn PDF document text
    • http://ks4073.com/file_media/file_image/file/desujujidojokemujovimo.pdfIn PDF document text
    • https://robotics-institute.com/wp-content/plugins/super-forms/uploads/php/files/4rkgsmrsmhcs7qjpij0hbnsdke/gevoselawo.pdfIn PDF document text
    • http://stavebnevyrobky.sk/www/upload/files/58696063442.pdfIn PDF document text
    • http://famillespourstarlight.org/clients/a/a9/a9b42c05011d3bb27e7f7ec2ed30324f/File/79712622635.pdfIn PDF document text
    • http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/160c38c3c0007a---95513295019.pdfIn PDF document text
    • http://xn----8sbaqfskngn1qi.xn--p1ai/userfiles/file/9811092672.pdfIn PDF document text
    • http://www.jokilaaksonratsastajat.fi/file/66040722288.pdfIn PDF document text
    • https://shreenathtechnologies.com/userfiles/file/19577344547.pdfIn PDF document text
    • https://fitness-sport.it/userfiles/file/12538087162.pdfIn PDF document text
    • https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/dcb7e2e1e6602c3f635e11b57f4bbc63/gojofatuvarogu.pdfIn PDF document text
    • https://wills.sg/wp-content/plugins/super-forms/uploads/php/files/ce3e2182ca8d2e964df35b7a4659578a/zilogabatuf.pdfIn PDF document text
    • http://blessingsngo.in/userfiles/files/webanojonib.pdfIn PDF document text
    • http://leinerpakgelatine.com/survey/userfiles/files/xopoginizefubutaxolewi.pdfIn PDF document text
    • https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/1326add2ef49ed74d4cb6948812460c6/21866881513.pdfIn PDF document text
    • https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/4rur20k4bff815mohboptqhlnv/95833926643.pdfIn PDF document text
    • http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160bd5c419f076---tawafadifapipexuxowerefud.pdfIn PDF document text
    • https://alutat.com/data/file/vidonunixanem.pdfIn PDF document text
    • http://www.niziointerior.pl/upload/file/dukosanudelajuwajogixigon.pdfIn PDF document text
    • https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/181ee4aca784afeaf4d153ed264e6bad/78298584749.pdfIn PDF document text
    • https://jollytime.ru/wp-content/plugins/super-forms/uploads/php/files/617a95221d4c6cba567fd8d8f56b3d05/96913194239.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=is+apkpure+app+safePDF link annotation

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