Malicious PDF — malware analysis report

Static analysis result for SHA-256 50d3d1a3dc96e3dc…

MALICIOUS

PDF

68.6 KB Created: 2021-05-16 00:17:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 10dd3ba61a712196f191fd50dc26d689 SHA-1: ee18731964e294661ef4b2583384d0362683db18 SHA-256: 50d3d1a3dc96e3dc4ed29765f549a49a30fc7600f2170e8fd0e7120ce3ee786f
106 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • ClamAV scan did not complete info CLAMAV_SCAN_INCOMPLETE
    ClamAV scan on this file did not complete (ClamAV error (exit 2)); the verdict reflects only static heuristics. The result is not cached so a later submission will retry the scan.
  • 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://www.sevenchurchestour.net/seven/wp-content/plugins/formcraft/file-upload/server/content/files/1609ee7363c5f2---kiwisizujimituxovon.pdf
    • http://notarbrazda.cz/userfiles/file/dejorotuxaredazasajipuk.pdf
    • https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/160805b4c23613---26671475008.pdf
    • http://younewstoday.com/task/userimages/file/nikusunupiloziv.pdf
    • https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/0e3345fdb4069ba0fce51fffee536908/24475178529.pdf
    • https://myveolife.com/wp-content/plugins/super-forms/uploads/php/files/35e28b334184aff2f3decf9689c23543/10062854689.pdf
    • http://10glazsikeyrosa.ru/file/57388041537.pdf
    • https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075197b3930b---kewapolepivupurazoxexufa.pdf
    • https://www.travelticket.com.au/wp-content/plugins/super-forms/uploads/php/files/komhandoviqvodqak5jcmdsmsa/gawawidesitexugo.pdf
    • http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160967b1bed4a1---58714613984.pdf
    • https://www.officinadelgustoroma.com/wp-content/plugins/super-forms/uploads/php/files/2334f500205815054593a7645124921c/tisapiji.pdf
    • https://precisionautoandac.com/wp-content/plugins/super-forms/uploads/php/files/b50072b245a2687bc1d83052d80a6aea/sifalufin.pdf
    • http://diagonal.org.ar/wp-content/plugins/formcraft/file-upload/server/content/files/1608f02149a1b1---lamitenalejupasone.pdf
    • https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/16096032b44fe6---34817003892.pdf
    • http://baharemadinah.com/wp-con
    • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=adtran+netvanta+1238+poe+manual
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

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