Malicious PDF — malware analysis report

Static analysis result for SHA-256 a72e07efcb16b938…

MALICIOUS

PDF

15.5 KB Created: 2020-03-17 04:02:01 +00:00 Authoring application: mPDF 5.7
MD5: f1457cde205c5d224752abab52d0b3b0 SHA-1: 01974b8df095cff87d9b5ad50160c546eb9fb2c3 SHA-256: a72e07efcb16b938ab7eed0c4daadf16f60e1683e727875f17c08a4a2547e084
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic. These URLs point to various book titles hosted on the 'owlaokopdf.myhome.cx' domain. The ML classifier also flagged this PDF as malicious with high confidence. The primary attack pattern appears to be SEO poisoning or a link farm designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9880

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://owlaokopdf.myhome.cx/281648169816881608161/Last-Sacrifice-Vampire-Academy-6-by-Richelle-Mead.pdf
    • http://owlaokopdf.myhome.cx/78169816581638168/Last-Sacrifice-Vampire-Academy-6-by-Richelle-Mead.pdf
    • http://owlaokopdf.myhome.cx/88168816481638166/Last-Sacrifice-Vampire-Academy-6-by-Richelle-Mead.pdf
    • http://owlaokopdf.myhome.cx/18160816881638160/Blood-Promise-Vampire-Academy-4-by-Richelle-Mead.pdf
    • http://owlaokopdf.myhome.cx/58165816581648161/Blood-Promise-Vampire-Academy-4-by-Richelle-Mead.pdf
    • http://owlaokopdf.myhome.cx/481608166816081698168/Blood-Promise-Vampire-Academy-4-by-Richelle-Mead.pdf
    • http://owlaokopdf.myhome.cx/281608169816781668164/Shadow-Kiss-Vampire-Academy-3-by-Richelle-Mead.pdf
    • http://owlaokopdf.myhome.cx/481608166816081698166/Shadow-Kiss-Vampire-Academy-3-by-Richelle-Mead.pdf
    • http://owlaokopdf.myhome.cx/481668160816581658166/Spirit-Bound-Vampire-Academy-5-by-Richelle-Mead.pdf
    • http://owlaokopdf.myhome.cx/181688163816481648165/Vampire-Academy-Vampire-Academy-1-by-Richelle-Mead.pdf
    • http://owlaokopdf.myhome.cx/78160816781658168/Vampire-Academy-Vampire-Academy-1-by-Richelle-Mead.pdf
    • http://owlaokopdf.myhome.cx/581638168816681618165/Vampire-Academy-Vampire-Academy-1-by-Richelle-Mead.pdf
    • http://owlaokopdf.myhome.cx/48164816981628168/Vampire-Academy-Vampire-Academy-1-by-Richelle-Mead.pdf
    • http://owlaokopdf.myhome.cx/381648167816481648169/Vampire-Academy-Vampire-Academy-1-by-Richelle-Mead.pdf
    • http://owlaokopdf.myhome.cx/38162816181628163/Vampire-Academy-Vampire-Academy-1-by-Richelle-Mead.pdf
    • http://owlaokopdf.myhome.cx/9816681638162/Vampire-Academy-The-Graphic-Novel-Vampire-Academy-The-Graphic-Novel-1-by-Richelle-Mead.pdf
    • http://owlaokopdf.myhome.cx/181648167816881648163/Shadow-Kiss-The-Graphic-Novel-Vampire-Academy-The-Graphic-Novel-3-by-Richelle-Mead.pdf
    • http://owlaokopdf.myhome.cx/181678167816181608161/Soundless-by-Richelle-Mead.pdf
    • http://owlaokopdf.myhome.cx/78169816681628160/The-Glittering-Court-by-Richelle-Mead.pdf
    • http://owlaokopdf.myhome.cx/181628160816281608165/Gameboard-of-the-Gods-Age-of-X-1-by-Richelle-Mead.pdf
    • http://owlaokopdf.myhome.cx/581638168816681618165/Vampire-Academy-Vampire-Academy-1-by-Ric

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