Malicious PDF — malware analysis report

Static analysis result for SHA-256 3406aecc3112e7ca…

MALICIOUS

PDF

15.8 KB Created: 2019-04-30 19:06:55 +01:00 Authoring application: mPDF 5.7
MD5: 069354b8c1243e0582be81dc919af731 SHA-1: 4605b1f4d28c179b2215e19d0f160d4d67d8f4b7 SHA-256: 3406aecc3112e7ca2fb315554d9e40cfb1f5fb844f08514dd2d61337459167b1
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, forming a link farm that directs users to external websites. The ML classifier also flagged this PDF as malicious. The primary attack pattern observed is the distribution of numerous links, likely intended to lead users to malicious content or phishing sites.

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://xiixmcuin.linkpc.net/7207203204203201/U2-The-Definitive-Biography-by-John-Jobling.pdf
    • http://xiixmcuin.linkpc.net/1200208205203201209/Tony-Hancock-The-Definitive-Biography-by-John-Fisher.pdf
    • http://xiixmcuin.linkpc.net/1201206208204208205/Playing-to-Win-The-Definitive-Biography-of-John-Farnham-by-Jeff-Apter.pdf
    • http://xiixmcuin.linkpc.net/7207203204208206/Lemmy-The-Definitive-Biography-by-Mick-Wall.pdf
    • http://xiixmcuin.linkpc.net/6202205205200204/Jules-Verne-The-Definitive-Biography-by-William-Butcher.pdf
    • http://xiixmcuin.linkpc.net/3203202202201201/Tarzan-Alive-A-Definitive-Biography-of-Lord-Greystoke-Wold-Newton-1-by-Philip-Jos-Farmer.pdf
    • http://xiixmcuin.linkpc.net/1201205205207205201/Louis-Armstrong-The-Definitive-Biography-Translated-by-Bertram-Thompson-Preface-by-Dave-Brubeck-by-Ilse-Storb.pdf
    • http://xiixmcuin.linkpc.net/7207203204209200/Jenkins-The-Definitive-Guide-by-John-Ferguson-Smart.pdf
    • http://xiixmcuin.linkpc.net/7207203203200206/Dynamic-HTML-The-Definitive-Reference-The-Definitive-Reference-by-Danny-Goodman.pdf
    • http://xiixmcuin.linkpc.net/5208208204208204/Borland-C-Builder-the-Definitive-C-Builder-Problem-Solver-by-John-Miano.pdf
    • http://xiixmcuin.linkpc.net/7207203204208208/Ajax-The-Definitive-Guide-The-Definitive-Guide-by-Anthony-T-Holdener.pdf
    • http://xiixmcuin.linkpc.net/8202206204205209/Seve-The-Biography-by-Lauren-St-John.pdf
    • http://xiixmcuin.linkpc.net/7209207206206201/John-Henry-Newman-A-Biography-by-Ian-Ker.pdf
    • http://xiixmcuin.linkpc.net/3200204204206205/Shadow-of-the-Hawk-by-Curtis-Jobling.pdf
    • http://xiixmcuin.linkpc.net/5200208202208205/Monster-Hunter-by-Curtis-Jobling.pdf
    • http://xiixmcuin.linkpc.net/3206202200201206/Moody-A-Biography-by-John-Charles-Pollock.pdf
    • http://xiixmcuin.linkpc.net/4202205201203207/John-Ford-A-Biography-by-Andrew-Sinclair.pdf
    • http://xiixmcuin.linkpc.net/7202204204203/Rise-of-the-Wolf-Wereworld-1-by-Curtis-Jobling.pdf
    • http://xiixmcuin.linkpc.net/2206205205201200/Storm-of-Sharks-Wereworld-5-by-Curtis-Jobling.pdf
    • http://xiixmcuin.linkpc.net/5205202208206/Rise-of-the-Wolf-Wereworld-1-by-Curtis-Jobling.pdf

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