Malicious PDF — malware analysis report

Static analysis result for SHA-256 66fb8b04807aa3f9…

MALICIOUS

PDF

19.1 KB Created: 2020-03-27 11:59:45 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 26aca84a003c2a454d14f9e822c4a36e SHA-1: 83650a0b924097ea1608237b6fa40b60fb5f5a4c SHA-256: 66fb8b04807aa3f9be5bee5b00293b2bf2301a684879504a1a99d0f30fbe2d97
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document is identified as a malicious screenshot lure, designed to trick users into clicking embedded links. The document body contains a mix of obfuscated text and numerous external URLs, suggesting an attempt to direct users to potentially malicious websites for phishing or further payload delivery. The presence of multiple PDF link farms further indicates a coordinated effort to distribute malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9943

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 19 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://fiskeandsonsfish.com/uploads/1/3/0/3/130313405/130313405.html#que+significa+resonancia+magnetica+cuantica
    • http://onelifehealthwellness.com/uploads/1/3/1/1/131164117/towirobiw.pdf
    • http://goldenblissbrand.com/uploads/1/3/0/4/130477420/4215050.pdf
    • http://alexeng.org/uploads/1/3/0/3/130313107/8af336.pdf
    • http://gentleyogaflow.net/uploads/1/3/0/6/130621111/kadolatusixofom-remebon-xulixapimuku-mudalip.pdf
    • http://centerofheartistry.org/uploads/1/3/0/4/130483146/sepupirowef-sasirakexaw-tutak-tesolob.pdf
    • http://thespeakerspot.com/uploads/1/3/0/7/130739964/napux-novazo.pdf
    • http://atbadvisers.com/uploads/1/3/0/6/130639860/7483024.pdf
    • http://district197middleschoolsports.com/uploads/1/3/0/5/130588675/6163967.pdf
    • http://taylortutoring.net/uploads/1/3/0/5/130543453/mojepazodofu.pdf
    • http://petportraitsbyjanedolan.com/uploads/1/3/0/2/130289305/b201db1cecaed16.pdf
    • http://56-courage2020.com/uploads/1/3/0/6/130605492/2190859.pdf

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