Malicious PDF — malware analysis report

Static analysis result for SHA-256 887195e3cb23fa4d…

MALICIOUS

PDF

16.9 KB Created: 2019-04-30 02:24:31 +01:00 Authoring application: mPDF 5.7
MD5: 043ae14f51a8ab6e5ef701b5ab22bef7 SHA-1: 5d07c4af53d06c3a5978e93741332ac5e938dac3 SHA-256: 887195e3cb23fa4de6b913b318fb7e07e9ae6a5d34a23b5df1435577ce5013de
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains a large number of embedded links to external PDF documents, hosted on the domain 'loaminoo.linkpc.net'. This behavior is indicative of a link farm or SEO spam campaign, designed to drive traffic to specific content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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/1090099098092090095/Against-All-Odds-Ten-Historical-Figures-Who-Overcame-Incredible-Adversity-From-William-the-Bastard-to-Winston-Churchill-by-Michael-Rank.pdf
    • http://loaminoo.linkpc.net/7099090098094099/Winston-s-War-Winston-Churchill-1-by-Michael-Dobbs.pdf
    • http://loaminoo.linkpc.net/5090095090093097/Speaking-For-Themselves-The-Private-Letters-Of-Sir-Winston-And-Lady-Churchill-by-Winston-S-Churchill.pdf
    • http://loaminoo.linkpc.net/6095097095098/The-Last-Lion-2-Winston-Spencer-Churchill-Alone-1932-40-by-William-Manchester.pdf
    • http://loaminoo.linkpc.net/7094098097096095/The-Last-Lion-Winston-Spencer-Churchill-Vol-2-Alone-1932-1940-by-William-Manchester.pdf
    • http://loaminoo.linkpc.net/5091093090093/Young-Titan-The-Making-of-Winston-Churchill-by-Michael-Shelden.pdf
    • http://loaminoo.linkpc.net/1094093098097091/Churchill-s-Folly-How-Winston-Churchill-Created-Modern-Iraq-by-Christopher-Catherwood.pdf
    • http://loaminoo.linkpc.net/2096094091092091/The-Boer-War-by-Winston-S-Churchill.pdf
    • http://loaminoo.linkpc.net/4097095090093091/The-New-World-by-Winston-S-Churchill.pdf
    • http://loaminoo.linkpc.net/2096094096095090/The-Crossing-by-Winston-Churchill.pdf
    • http://loaminoo.linkpc.net/2096094096094097/My-African-Journey-by-Winston-S-Churchill.pdf
    • http://loaminoo.linkpc.net/1092090091091098/Richard-Carvel-by-Winston-Churchill.pdf
    • http://loaminoo.linkpc.net/2096097092094093/My-Early-Life-by-Winston-S-Churchill.pdf
    • http://loaminoo.linkpc.net/1093099095096097/The-Grand-Alliance-The-Second-World-War-3-by-Winston-S-Churchill.pdf
    • http://loaminoo.linkpc.net/3099093096095097/London-to-Ladysmith-via-Pretoria-by-Winston-S-Churchill.pdf
    • http://loaminoo.linkpc.net/4097095095093098/The-Young-Winston-Churchill-by-John-Marsh.pdf
    • http://loaminoo.linkpc.net/1093099093093096/Closing-the-Ring-The-Second-World-War-5-by-Winston-S-Churchill.pdf
    • http://loaminoo.linkpc.net/4090090099090091/A-History-of-the-English-Speaking-Peoples-by-Winston-S-Churchill.pdf
    • http://loaminoo.linkpc.net/7099091090099099/Winston-Churchill-A-Life-From-Beginning-to-End-by-Hourly-History.pdf
    • http://loaminoo.linkpc.net/7099091091090090/Jennie-The-Mother-of-Winston-Churchill-by-Anita-Leslie.pdf
    • http://loaminoo.linkpc.net/1094093098097091/Churchill-s-Folly-How-Winston-Churchill-Created

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