Malicious PDF — malware analysis report

Static analysis result for SHA-256 e23736bf85762074…

MALICIOUS

PDF

67.0 KB Created: 2021-06-24 20:43:40 +03:00 Authoring application: Patrick Washington (via Kenneth Fernandez) First seen: 2021-07-13
MD5: 4da3e863893b95564e2a9bccbbcbf44d SHA-1: b7499ea764384987a107bb9329324274d241a0b0 SHA-256: e23736bf857620746cdb48fe841892897284c96713db51e0ac0b7415fede1169
64 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file is identified as an image-only lure, a common tactic for phishing or malware distribution. It contains a link to 'beyk.walmartnewjersey.com', which impersonates the Walmart brand. This suggests the document is designed to trick users into visiting a malicious site by leveraging brand trust.

Machine Learning

  • Nyx PDF Classifier clean score 0.0288

Heuristics 4

  • Image-only PDF lure links to a brand-impersonating host high PDF_IMAGE_LURE_BRAND_HOST_LINK
    PDF is image-heavy with little real text and its clickable action targets a host carrying the brand name 'walmart' as a domain label / subdomain segment on a registered domain that is not that brand's own and is not known-good (e.g. 'udai.walmartnewjersey.com', 'paypal-secure.net'). Unlike the homoglyph-typosquat rule, the brand here is spelled correctly but glued onto an unrelated domain — the canonical brand-impersonation phishing / scam carrier shape behind a screenshot-like lure page.
  • 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 66 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://beyk.walmartnewjersey.com PDF link annotation

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