Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab89c932318038d6…

MALICIOUS

PDF

18.9 KB Created: 2020-05-24 09:44:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c81f4695b2ea8795070cfa08318ccbbd SHA-1: 9587d57caa92b61066656d397ac10593027df405 SHA-256: ab89c932318038d6520dca0dd2cc8b4f89effafbca3ee9dfe8894eff1adec4f7
112 Risk Score

Malware Insights

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

This PDF document is identified as malicious by an ML classifier and exhibits characteristics of a phishing lure, specifically an image-only document with a clickable action. The document body contains obfuscated text and multiple external URLs, suggesting it is designed to redirect users to malicious websites. The presence of a large number of external PDF links further indicates a link farm or redirection scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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 18 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://dawgfanaticssportscards.com/uploads/1/3/1/4/131454950/131454950.html#amega+500+games
    • http://carreratransporte.com/uploads/1/3/0/3/130323423/dubumumofuwap_vewezele.pdf
    • http://seattleseniorcounseling.com/uploads/1/3/1/0/131069759/2566812.pdf
    • http://sonsandbrothers.com/uploads/1/3/1/3/131383854/0cb1a3a1116a4.pdf
    • http://voicemailstudios.com/uploads/1/3/1/6/131606047/617752.pdf
    • http://entrepreneurshipecosystems.org/uploads/1/3/0/6/130604505/laputadabibu-zazuzik-patedomox.pdf
    • http://cariskenny.com/uploads/1/3/1/8/131856567/xelaganaju.pdf
    • http://onefanpage.com/uploads/1/3/0/6/130603946/wejudame.pdf
    • http://justinechacon.com/uploads/1/3/1/8/131857056/e90630366e97787.pdf
    • http://governyourlife.com/uploads/1/3/0/6/130620796/0991d55a7c.pdf
    • http://sostresol.com/uploads/1/3/0/7/130776368/36c0abba7986e.pdf

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