Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ff6dff3894f9f2d…

MALICIOUS

PDF

16.2 KB Created: 2019-05-01 17:06:49 +01:00 Authoring application: mPDF 5.7
MD5: c8d906f9fabc68da36d93e292e49400d SHA-1: 4c6b767a85adc2412162f4e05dc446cea891f240 SHA-256: 0ff6dff3894f9f2d3fa3249034276337d439a58b5a4d07b2a7130037697f261d
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO spam or to distribute further malicious content. The ML classifier also flagged this PDF as malicious with high confidence. While the URLs themselves are currently marked as benign, the sheer volume and the heuristic firing indicate a malicious intent to redirect users.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9898

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://loaminoo.linkpc.net/1090091092098095096/A-Warrior-s-Heart-The-Shields-5-by-Donna-Grant.pdf
    • http://loaminoo.linkpc.net/1090091092098095093/A-Kind-of-Magic-The-Shields-2-by-Donna-Grant.pdf
    • http://loaminoo.linkpc.net/1093091098096096/Midnight-s-Warrior-Dark-Warriors-4-by-Donna-Grant.pdf
    • http://loaminoo.linkpc.net/4094094091097099/The-Dark-Warrior-Series-The-Complete-Collection-Contains-Midnight-s-Master-Midnight-s-Lover-Midnight-s-Seduction-Midnight-s-Warrior-Midnight-s-Kiss-Surrender-novella-Dark-Warriors-by-Donna-Grant.pdf
    • http://loaminoo.linkpc.net/3094095093094091/Cowboy-Cross-My-Heart-by-Donna-Grant.pdf
    • http://loaminoo.linkpc.net/2092095091096090/The-Christmas-Cowboy-Hero-Heart-of-Texas-1-by-Donna-Grant.pdf
    • http://loaminoo.linkpc.net/3094092090093099/Wed-to-a-Highland-Warrior-The-Warrior-King-4-by-Donna-Fletcher.pdf
    • http://loaminoo.linkpc.net/2097099095098092/Bound-to-a-Warrior-The-Warrior-King-1-by-Donna-Fletcher.pdf
    • http://loaminoo.linkpc.net/3098090090093095/The-Swan-Cove-Murders-by-Donna-Shields.pdf
    • http://loaminoo.linkpc.net/4097095091094091/A-Warrior-s-Heart-Warrior-1-by-Margaret-Moore.pdf
    • http://loaminoo.linkpc.net/4095098098090095/Warrior-by-R-G-Grant.pdf
    • http://loaminoo.linkpc.net/3090090099094096/Untamed-Highlander-by-Donna-Grant.pdf
    • http://loaminoo.linkpc.net/2097094091093096/Heart-Strings-Music-of-the-Heart-Book-1-by-Donna-Hatch.pdf
    • http://loaminoo.linkpc.net/2096096090095092/The-Last-Warrior-Lost-Colony-1-by-Susan-Grant.pdf
    • http://loaminoo.linkpc.net/9095097096091096/Dragonfyre-Druid-s-Glen-6-by-Donna-Grant.pdf
    • http://loaminoo.linkpc.net/8094095093094099/Highlander-El-conjuro-olvidado-by-Donna-Grant.pdf
    • http://loaminoo.linkpc.net/1091099096090090/Darkest-Flame-Part-1-by-Donna-Grant.pdf
    • http://loaminoo.linkpc.net/1091094090094098098/Soul-Scorched-Part-3-by-Donna-Grant.pdf
    • http://loaminoo.linkpc.net/3097097090098093/Hot-Blooded-Dark-Kings-4-by-Donna-Grant.pdf
    • http://loaminoo.linkpc.net/2093091093094093/Dark-Alpha-s-Demand-Reaper-3-by-Donna-Grant.pdf

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