Malicious PDF — malware analysis report

Static analysis result for SHA-256 652d7055576fa916…

MALICIOUS

PDF

38.9 KB Created: 2021-08-17 09:30:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: 056a3d3b300c1d2ec8a571ae14e12188 SHA-1: fd12bf675b6148b83590afdff3012a3db64349b0 SHA-256: 652d7055576fa91624d57fb32e84396fda3b3f9613bf70934064a413800ea5a0
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF is identified as malicious by ML classifiers and ClamAV, exhibiting characteristics of a phishing lure. It contains an image-only interface with a click-outward action, directing users to a link farm hosted on compromised WordPress sites and disposable domains. The primary purpose appears to be redirecting users to malicious content or facilitating the download of further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8588

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 38 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://behagi.eus/files/galeria/files/xozijuwukaxigiseb.pdf In PDF document text
    • https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b754ec0b46a---muximuzisonuwurekadirar.pdfIn PDF document text
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/kgpca7njnga24muu07djhli0m1/jelosi.pdfIn PDF document text
    • https://www.higher-energy-trampolineclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad623c8c703---zinupexiwenodegizusomebun.pdfIn PDF document text
    • http://sportingclubalbinia.eu/userfiles/files/11889324607.pdfIn PDF document text
    • https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086f74bec6c1---48236984910.pdfIn PDF document text
    • http://www.gradur.ba/wp-content/plugins/formcraft/file-upload/server/content/files/160fe9b124888c---49413278248.pdfIn PDF document text
    • http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071d40b8de58---giwunasopujola.pdfIn PDF document text
    • https://www.sistemkabin.com/ckfinder/userfiles/files/55065975552.pdfIn PDF document text
    • http://kasargod.net/uploads/file/gexarerutopagujilubisu.pdfIn PDF document text
    • https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/dd82r0uc8ajsasjh77egrgqds4/sepufekonasaz.pdfIn PDF document text
    • https://binarbaidservices.com/public_html/userfiles/file/40881943377.pdfIn PDF document text
    • https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/1608d8c1e3e538---pedaniruwuvorak.pdfIn PDF document text
    • http://10glazsikeyrosa.ru/file/91615504031.pdfIn PDF document text
    • https://iamluno.com/wp-content/plugins/formcraft/file-upload/servIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=what+are+your+strongest+skills+and+abilitiesPDF link annotation

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