Malicious PDF — malware analysis report

Static analysis result for SHA-256 697c9eb02ccedf5d…

MALICIOUS

PDF

63.7 KB Created: 2021-07-19 09:41:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: 5d8899cadb93692a5f648434c2babf33 SHA-1: 677534f23089c6ecbed2c68ffb32ac3fa543b6a9 SHA-256: 697c9eb02ccedf5db5b00616254bad7c828ab005a37e4a9e853cb71ef484cfc6
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV, indicating it is likely a phishing or trojan delivery mechanism. The heuristics reveal it functions as a link farm, directing users to multiple compromised WordPress upload sites and other disposable hosting domains. While no scripts were explicitly extracted, the nature of the link farm suggests an intent to redirect users to malicious content or download further payloads.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3846

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://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606cbf9a16a04---gotigun.pdf In PDF document text
    • https://marcuspietrek.de/MARCUS/files/file/3677149752.pdfIn PDF document text
    • https://www.hemoroidklinigi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083e2eec40d5---4935875414.pdfIn PDF document text
    • https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160c00721deee9---tiwarabimuxo.pdfIn PDF document text
    • https://winston-woodward.com/wp-content/plugins/super-forms/uploads/php/files/43a447a6f88d2cf7bb7caf688398038a/netitinag.pdfIn PDF document text
    • https://kawanmto.net/contents//files/sanufemope.pdfIn PDF document text
    • http://surtek.biz/image/files/20150108_122914.pdfIn PDF document text
    • http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/160923b5a10749---14199252916.pdfIn PDF document text
    • https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/ab9f4dcd8a525fbbafa78382d15a376a/2949215369.pdfIn PDF document text
    • https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608bac71a57af---riwewimome.pdfIn PDF document text
    • https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c4ee37ad71d---kinugorubeferuwoba.pdfIn PDF document text
    • http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160b7d31dab6fa---lifiji.pdfIn PDF document text
    • https://biothiennam.com/media/ftp/file/gewubetaxaruwer.pdfIn PDF document text
    • https://felix-schulze.biz/wp-content/plugins/super-forms/uploads/php/files/659hb3k7e87ne8gd8jec5sh03g/90401023507.pdfIn PDF document text
    • http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609471ba60b2b---bopijasifisotifokevam.pdfIn PDF document text
    • http://cesishotel.lv/res/wysiwyg/file/94621630374.pdfIn PDF document text
    • https://www.frontierexim.com/wp-content/plugins/super-forms/uploads/php/files/b9a40l9aeuhf8q1k6ob81m7bki/34796442169.pdfIn PDF document text
    • https://www.citysecurity.org.uk/wp-content/plugins/super-forms/uploads/php/files/l2c046vkk5n1l3i0evq85pigga/xakekix.pdfIn PDF document text
    • http://dabaizhongxue.com/upload_fck/file/2021-5-22/20210522233546503031.pdfIn PDF document text
    • http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cf8437899dc---libeginoz.pdfIn PDF document text
    • http://raunlarose.us/wp-content/plugins/formcraft/file-upload/server/content/files/160764b23968e3---wulolijikeralu.pdfIn PDF document text
    • https://agrachoff.ru/wp-content/plugins/super-forms/uploads/php/files/3171e588eda28ce95cda79a2edac128d/77250361547.pdfIn PDF document text
    • http://erdivigado.hu/userkepek/file/91263049804.pdfIn PDF document text
    • https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/c1aadac7f51117f5d6ac617959f6297e/wulofabagu.pdfIn PDF document text
    • https://securityguardsupply.org/php/uploads/file/fuwegubetusokawarovi.pdfIn PDF document text
    • http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/69b0a2c1113624261e8fcdabce2ac975/82583409393.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=clinical+counselling+pdfPDF link annotation