Malicious PDF — malware analysis report

Static analysis result for SHA-256 075598b5b7756d79…

MALICIOUS

PDF

42.3 KB Created: 2020-04-25 17:13:54 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 71c8b645ef0c3c4f8524a837a753c79d SHA-1: 0a44417fb475ad4a1283cb4e8fa8d7d4b02e8e51 SHA-256: 075598b5b7756d79ea36be71e0c1335caf50981bd2415c29aff0f25ce4e1c774
94 Risk Score

Malware Insights

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

The PDF contains numerous external links, a common tactic for SEO spam or phishing. The primary link, 'http://andreapaoneofficial.com/uploads/1/3/0/4/130488506/130488506.html#app+like+play+store', suggests a lure related to app stores. While no scripts were explicitly extracted, the PDF structure and extensive link farm indicate a malicious intent to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9877

Heuristics 3

  • 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.
  • 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://andreapaoneofficial.com/uploads/1/3/0/4/130488506/130488506.html#app+like+play+store
    • http://brodyblack.com/uploads/1/3/0/6/130620912/nefatogudup.pdf
    • http://lindonsamgroup.com/uploads/1/3/1/4/131437601/gejeve-vixojumiwexa.pdf
    • http://thecompliancedepartment.net/uploads/1/3/0/8/130873996/5533018.pdf
    • http://cutrixsoundentertainment.com/uploads/1/3/0/6/130605028/kadixorazojurujiwox.pdf
    • http://cassyjade.com/uploads/1/3/0/3/130312991/wikisutev.pdf
    • http://wondersmackphotography.com/uploads/1/3/0/4/130488691/3f233ba920b6.pdf
    • http://locksmart.org/uploads/1/3/0/2/130273624/5505132.pdf
    • http://everbuilt.net/uploads/1/3/0/6/130605190/2557129.pdf
    • http://addieprayse.com/uploads/1/3/0/9/130969754/b09b79554a6b14.pdf
    • http://175progressplace.com/uploads/1/3/1/4/131407977/2193ee020.pdf
    • http://transemantique.com/uploads/1/3/0/8/130813604/825b8d98b812c.pdf
    • http://konjurenginestudios.com/uploads/1/3/0/7/130776125/pefawaxagox.pdf

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