Malicious PDF — malware analysis report

Static analysis result for SHA-256 b83bfe8f223e014a…

MALICIOUS

PDF

13.2 KB Created: 2019-05-07 04:40:49 +01:00 Authoring application: mPDF 5.7
MD5: 9f7e3d5f877d5af79ae212b080919601 SHA-1: bbdbfa0233485f0e0d79a66b7bb97dbd16f2f436 SHA-256: b83bfe8f223e014a7dc7dc8518a8abb0d2ca6464a5d71288e8f2d419ddc4ab2e
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, hosted on the domain xiixmcuin.linkpc.net. This technique is often used to distribute malicious content or to engage in SEO poisoning to drive traffic to malicious sites. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9006

Heuristics 2

  • 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.
  • 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://xiixmcuin.linkpc.net/2201203208202/The-Invention-of-Angela-Carter-A-Biography-by-Edmund-Gordon.pdf
    • http://xiixmcuin.linkpc.net/3202203209204207/Love-by-Angela-Carter.pdf
    • http://xiixmcuin.linkpc.net/3205205203203/Nights-at-the-Circus-by-Angela-Carter.pdf
    • http://xiixmcuin.linkpc.net/8200207206207/The-Sadeian-Woman-by-Angela-Carter.pdf
    • http://xiixmcuin.linkpc.net/3209208205209206/Saints-And-Strangers-by-Angela-Carter.pdf
    • http://xiixmcuin.linkpc.net/4207201200201207/The-Magic-Toyshop-by-Angela-Carter.pdf
    • http://xiixmcuin.linkpc.net/1207203202203203/Nights-at-the-Circus-by-Angela-Carter.pdf
    • http://xiixmcuin.linkpc.net/2209202202206208/The-Company-of-Wolves-by-Angela-Carter.pdf
    • http://xiixmcuin.linkpc.net/2206203209208/Saints-and-Strangers-by-Angela-Carter.pdf
    • http://xiixmcuin.linkpc.net/3209204209205205/Nights-at-the-Circus-by-Angela-Carter.pdf
    • http://xiixmcuin.linkpc.net/4204205209203201/Fireworks-Nine-Profane-Stories-by-Angela-Carter.pdf
    • http://xiixmcuin.linkpc.net/1209203208209204/The-Bloody-Chamber-and-Other-Stories-by-Angela-Carter.pdf
    • http://xiixmcuin.linkpc.net/3203209202204/The-Bloody-Chamber-and-Other-Stories-by-Angela-Carter.pdf
    • http://xiixmcuin.linkpc.net/1201203208204203201/Expletives-Deleted-Selected-Writings-by-Angela-Carter.pdf
    • http://xiixmcuin.linkpc.net/4207200202206203/Shaking-a-Leg-Collected-Journalism-and-Writings-by-Angela-Carter.pdf
    • http://xiixmcuin.linkpc.net/1201205203204209203/Gordon-Strachan-The-Biography-by-Leo-Moynihan.pdf
    • http://xiixmcuin.linkpc.net/3205208208202206/The-Infernal-Desire-Machines-of-Doctor-Hoffman-by-Angela-Carter.pdf
    • http://xiixmcuin.linkpc.net/4207200203207205/Flesh-and-the-Mirror-Essays-on-the-Art-of-Angela-Carter-by-Lorna-Sage.pdf
    • http://xiixmcuin.linkpc.net/9205208205206201/The-Infernal-Desire-Machines-of-Angela-Carter-by-Jeff-VanderMeer.pdf
    • http://xiixmcuin.linkpc.net/8208202208205202/Angela-Merkel-The-Authorized-Biography-by-Stefan-Kornelius.pdf
    • http://xiixmcuin.linkpc.net/42072

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