Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a9a880daba18931…

MALICIOUS

PDF

15.8 KB Created: 2020-03-09 01:10:40 +00:00 Authoring application: mPDF 5.7
MD5: 121e8754fe7b830e37f5e82132d1ec85 SHA-1: 566f3f8822957ee3486c9d4916b5a214ba5f36dd SHA-256: 8a9a880daba18931ac49d730769a3da9648d20a4a03044788dac5ddfeeabd094
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF was flagged by a machine learning classifier and contains a large number of embedded URLs, indicating a link farm or redirection scheme. The presence of numerous links to book titles suggests a lure to disguise malicious intent. No scripts were extracted, but the structure and URL distribution strongly suggest a phishing or redirection attack. The primary attack pattern involves leveraging a PDF document to host a large number of external links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9892

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://kiteeearpdf.myhome.cx/7f215f216f210f218f215/The-Secret-Garden-By-Frances-Hodgson-Burnett---Illustrated-Free-Audiobook-Unabridged-Original-E-Reader-Friendly-by-Frances-Hodgson-Burnett.pdf
    • http://kiteeearpdf.myhome.cx/5f219f213f214f218f217/A-Little-Princess-By-Frances-Hodgson-Burnett---Illustrated-Comes-with-a-Free-Audiobook-by-Frances-Hodgson-Burnett.pdf
    • http://kiteeearpdf.myhome.cx/1f210f215f211f212f210f213/The-Essential-Works-of-Frances-Hodgson-Burnett-by-Frances-Hodgson-Burnett.pdf
    • http://kiteeearpdf.myhome.cx/3f214f217f216f210f217/Robin-by-Frances-Hodgson-Burnett.pdf
    • http://kiteeearpdf.myhome.cx/8f210f219f215f218f215/A-Little-Princess-by-Frances-Hodgson-Burnett.pdf
    • http://kiteeearpdf.myhome.cx/6f212f212f214f211f211/A-Little-Princess-by-Frances-Hodgson-Burnett.pdf
    • http://kiteeearpdf.myhome.cx/4f218f210f213f215f210/A-Little-Princess-by-Frances-Hodgson-Burnett.pdf
    • http://kiteeearpdf.myhome.cx/7f219f215f217f212f213/A-Little-Princess-by-Frances-Hodgson-Burnett.pdf
    • http://kiteeearpdf.myhome.cx/2f216f212f218f211f216/A-Little-Princess-by-Frances-Hodgson-Burnett.pdf
    • http://kiteeearpdf.myhome.cx/7f216f217f214f212f214/A-Little-Princess-by-Frances-Hodgson-Burnett.pdf
    • http://kiteeearpdf.myhome.cx/3f212f212f217f216/A-Little-Princess-by-Frances-Hodgson-Burnett.pdf
    • http://kiteeearpdf.myhome.cx/7f211f214f210f217f218/A-Little-Princess-by-Frances-Hodgson-Burnett.pdf
    • http://kiteeearpdf.myhome.cx/5f218f213f210f214/The-Secret-Garden-by-Frances-Hodgson-Burnett.pdf
    • http://kiteeearpdf.myhome.cx/8f215f216f210f210/The-Secret-Garden-by-Frances-Hodgson-Burnett.pdf
    • http://kiteeearpdf.myhome.cx/7f210f217f218f217f211/The-Secret-Garden-by-Frances-Hodgson-Burnett.pdf
    • http://kiteeearpdf.myhome.cx/6f213f213f210f219f214/The-Secret-Garden-by-Frances-Hodgson-Burnett.pdf
    • http://kiteeearpdf.myhome.cx/9f212f217f211f210f210/The-Secret-Garden-by-Frances-Hodgson-Burnett.pdf
    • http://kiteeearpdf.myhome.cx/7f216f217f212f216f216/The-Secret-Garden-by-Frances-Hodgson-Burnett.pdf
    • http://kiteeearpdf.myhome.cx/7f216f212f212f216f217/The-Secret-Garden-by-Frances-Hodgson-Burnett.pdf
    • http://kiteeearpdf.myhome.cx/5f216f214f217f211f216/Secret-Garden-by-Frances-Hodgson-Burnett.pdf
    • http://kiteeearpdf.myhome.cx/6f212f212f214f211f211/A-Little-Princ

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