Malicious PDF — malware analysis report

Static analysis result for SHA-256 f458284c36133f75…

MALICIOUS

PDF

37.3 KB Created: 2021-09-02 22:18:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 818156fe12fc27aa87eb9d2a22bd086e SHA-1: 65619145aad94f4692087ad166c2e1db30779ac3 SHA-256: f458284c36133f75639c6f6ccb01720cb6d3936f42792e111aa8f868ecd659e1
144 Risk Score

Malware Insights

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

The PDF is identified as an image-only lure, typical of phishing campaigns, with heuristics indicating it functions as a link farm on disposable hosting. The presence of multiple unknown URLs suggests an attempt to redirect the user to a malicious site or download further malware. ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7998

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
  • 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 http://amandamaitland.com/images/file/79848483042.pdf In PDF document text
    • https://qfse.co/images/uploaded_files/ckfinder/files/1625246637_22947be4f4.pdfIn PDF document text
    • https://syntellect.ru/Repository/file/satipuvixagobipinazazur.pdfIn PDF document text
    • http://basyapiemlak.com/yukleme_klasoru/userfiles/file/38662116042.pdfIn PDF document text
    • https://arte-salon.ru/upload_picture/rufarup.pdfIn PDF document text
    • http://casier-a-bouteilles.com/file/12029945982.pdfIn PDF document text
    • http://rockhousemethod.com/ckfinder/userfiles/files/40330126836.pdfIn PDF document text
    • http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a257ca9d75a---89447560866.pdfIn PDF document text
    • http://cricalliance.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078b25In PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=bioprocess+and+fermentation+technology+pdfPDF link annotation

Open this report in the interactive analyzer, or submit your own file for analysis.