PDF malware analysis — malicious · 3c607296840555b8

MALICIOUS

PDF

165.6 KB Created: 2021-05-21 12:26:11 +03:00 Authoring application: Nicholas Stephens Jr. Sr. I II III IV V MD DDS PhD DVM (via Kathryn Fisher I II III IV V MD DDS PhD DVM) First seen: 2021-05-29

MD5: 77ff9155a0a0685ec4f7cb005225c346 SHA-1: 9f2a90ade26b3797f5d70443c35414c0138622fc SHA-256: 3c607296840555b8b06699e35a6897d36c1a704e4dccc4020fa081df690c8a94

64 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF file contains an image lure, a common technique to trick users into interacting with malicious content. It embeds an external URI, http://s9ws5jx.earcropping.com, which is highly suspicious. The presence of a local builder path further suggests a crafted malicious document.

Machine Learning

Nyx PDF Classifier clean score 0.2439

Heuristics 4

Image-only PDF carries local builder path plus remote links high PDF_IMAGE_LURE_LOCAL_FILE_AND_REMOTE_URI

PDF is an image-only click lure that contains both remote HTTP(S) destinations and a file:/// URI exposing a local Windows/Linux builder path. That co-occurrence is not normal document linking; it matches generated clickbait/phishing carriers where the visible page is a screenshot and the clickable area sends the user to external infrastructure.
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 165 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://s9ws5jx.earcropping.com PDF link annotation

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