Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0c0785d0f1eac7e…

MALICIOUS

PDF

48.4 KB Created: 2021-09-18 05:57:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-31
MD5: 2a34c0c14c95e7a8eaf848f8e66d04c4 SHA-1: 842efca594f4fc974d6de9f3349beb0d533e77d2 SHA-256: d0c0785d0f1eac7eaf4cf32c3d8e882fd179e20d3405fe2d19ddf0c41b185566
154 Risk Score

Malware Insights

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

The file is identified as a malicious PDF by ClamAV and an ML classifier. It contains numerous embedded URLs that point to external sites, many of which are hosted on disposable domains or compromised CMS uploads, suggesting a link farm designed to redirect users to malicious content. The heuristic firings indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7493

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 https://allytemp.ru/uplcv?utm_term=new+update+ros+cheat+2020 PDF link annotation
    • http://wangguanhardware.com/userfiles/file/vinovenar.pdfIn PDF document text
    • https://cytokin.ca/upload/editor/file/93149620135.pdfIn PDF document text
    • https://jewfri.kr/files/image/files/51044182056.pdfIn PDF document text
    • https://amt-alarmy.pl/userfiles/file/futufixivewe.pdfIn PDF document text
    • http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/16134a82b94d43---tofoguri.pdfIn PDF document text
    • http://nsk-nalogov.net/upload/files/mipesolunavuri.pdfIn PDF document text
    • http://we2meeting.com/ckfinder/userfiles/publics/files/pulubuxegupujixe.pdfIn PDF document text
    • http://putzlappenborner.at/editor_up/negowikijazuzavakumerax.pdfIn PDF document text
    • http://livestocktool.com/d/files/41426432209.pdfIn PDF document text
    • http://kurskodkb.ru/page_edit/_samples/userfiles/files/xokutep.pdfIn PDF document text
    • https://y3stwk65l-mn9.com/contents/files/59454621823.pdfIn PDF document text
    • http://irpuyesh.com/cache/fck_files/file/solakaxe.pdfIn PDF document text
    • http://nattuvaartha.com/assets/ckfinder/core/connector/php/uploads/files/49033302406.pdfIn PDF document text
    • https://pushtypathshala.com/demo/aims/files/images/files/88584660145.pdfIn PDF document text
    • http://franklcalabreseattorney.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/16216064226.pdfIn PDF document text
    • https://epagneuls-bretons.fr/caningest/images/file/60355008313.pdfIn PDF document text
    • http://tahyuh.com/uploads/files/202109141326579770.pdfIn PDF document text
    • http://loadcell.vn/Images_upload/files/gipemugaduvuwele.pdfIn PDF document text
    • http://www.gonouvellezelande.com/files/45697319481.pdfIn PDF document text
    • http://ilonew.tasksplan.com/ckfinder/userfiles/files/29696342523.pdfIn PDF document text
    • https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/sbf0ndbp42398o0i2h604f4mhj/94011431888.pdfIn PDF document text
    • http://sentezetutmerkezi.com/upload/ckfinder/files/92102023227.pdfIn PDF document text
    • http://easyreturn.store/userfiles/file/vobivibakamid.pdfIn PDF document text
    • http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/161364d4753bf7---81255903420.pdfIn PDF document text
    • http://mwflower.com/upimagesfile///40460547119.pdfIn PDF document text

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