Malicious PDF — malware analysis report

Static analysis result for SHA-256 14eee9f877043a64…

MALICIOUS

PDF

37.9 KB Created: 2021-07-05 03:08:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-24
MD5: ffa083f04dd27c991a2335b29105b046 SHA-1: deec49dee8eaec05d6d6da845e3227aec8909631 SHA-256: 14eee9f877043a648ab0dd7b34f5b6eb8cbee126cf7c172c4f743a9a12d3a5db
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and uses an image-based lure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7848

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
  • 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 37 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://laborke.ru/uplcv?utm_term=eating+for+gastroparesis PDF link annotation
    • https://yingzhaoliuart.com/upload/file/71709400164.pdfIn PDF document text
    • https://acrgroup.nl/userfiles/file/vabogulogopiwetibe.pdfIn PDF document text
    • https://mehreganimaging.ir/images/upload/files/18374638700.pdfIn PDF document text
    • http://studiotecniconuti.it/userfiles/files/kegogu.pdfIn PDF document text
    • http://easyliveconstruction.com/ci/userfiles/files/66649441702.pdfIn PDF document text
    • https://pottoka.info/files/galeria/files/sorugeviwedazudotaren.pdfIn PDF document text
    • http://teenaramainc.org/clients/875997/File/24159269677.pdfIn PDF document text
    • https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c32a07a3e9f.pdfIn PDF document text
    • https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160af2f214929c---zovasamijikasawu.pdfIn PDF document text
    • http://shukokai-voves.fr/userfiles/file/kelipa.pdfIn PDF document text
    • https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/1607234e44d37e---825777326.pdfIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

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