Malicious PDF — malware analysis report

Static analysis result for SHA-256 582ba2392e68f151…

MALICIOUS

PDF

14.4 KB Created: 2019-05-07 03:19:38 +01:00 Authoring application: mPDF 5.7
MD5: fb5bd90be8f1d1faec817067947919d7 SHA-1: 7261c51c9e1a4dbed0784f56f9b0f616d991418e SHA-256: 582ba2392e68f1517dba331c88cf6a9342ece33fde645db03c4cb7b8674b39f7
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier strongly indicated maliciousness. While the URLs themselves are currently marked as benign, the sheer volume and the heuristic firing suggest a malicious intent, likely to redirect users to harmful sites or to download further malware. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9891

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/2092097097094094/Sudden-Death-FBI-Trilogy-1-by-Allison-Brennan.pdf
    • http://loaminoo.linkpc.net/2097099098096094/Playing-Dead-Prison-Break-Trilogy-3-by-Allison-Brennan.pdf
    • http://loaminoo.linkpc.net/1090090093094096098/Furcht-soll-Dich-begleiten-Fear-No-Evil-No-Evil-Trilogy-3-by-Allison-Brennan.pdf
    • http://loaminoo.linkpc.net/4093094094090090/Speak-No-Evil-No-Evil-Trilogy-1-by-Allison-Brennan.pdf
    • http://loaminoo.linkpc.net/2094096097092092/Fear-No-Evil-No-Evil-Trilogy-3-by-Allison-Brennan.pdf
    • http://loaminoo.linkpc.net/5094094090092/36-Hours-by-Allison-Brennan.pdf
    • http://loaminoo.linkpc.net/4097096099090092/Carnal-Sin-Seven-Deadly-Sins-2-by-Allison-Brennan.pdf
    • http://loaminoo.linkpc.net/4097096096099094/Sweet-Dreams-Boxed-Set-by-Allison-Brennan.pdf
    • http://loaminoo.linkpc.net/3098099095093099/Love-Is-Murder-Lucy-Kincaid-0-5-by-Allison-Brennan.pdf
    • http://loaminoo.linkpc.net/2096098097/Sudden-Death-by-lvaro-Enrigue.pdf
    • http://loaminoo.linkpc.net/3093092096097097/A-Sudden-Fearful-Death-William-Monk-4-by-Anne-Perry.pdf
    • http://loaminoo.linkpc.net/2094094099097093/Death-Du-Jour-Temperance-Brennan-2-by-Kathy-Reichs.pdf
    • http://loaminoo.linkpc.net/3091093097096/Death-Overdue-The-Haunted-Library-Mysteries-1-by-Allison-Brook.pdf
    • http://loaminoo.linkpc.net/2096093097090092/Death-Most-Definite-Death-Works-Trilogy-1-by-Trent-Jamieson.pdf
    • http://loaminoo.linkpc.net/3097099098093092/The-Memory-of-Death-Death-Works-Trilogy-3-5-by-Trent-Jamieson.pdf
    • http://loaminoo.linkpc.net/7092094091092092/Dickie-Brennan-s-Palace-Cafe-The-Flavor-of-New-Orleans-by-Dick-Brennan.pdf
    • http://loaminoo.linkpc.net/3090098094095099/Becoming-Death-The-Death-Trilogy-3-by-D-T-Dyllin.pdf
    • http://loaminoo.linkpc.net/3095098096098090/The-Death-Detail-The-Securus-Trilogy-1-by-Anthony-Maldonado.pdf
    • http://loaminoo.linkpc.net/2093096098095094/The-Death-in-Sioux-Lookout-Trilogy-by-Richard-Schwindt.pdf
    • http://loaminoo.linkpc.net/9090092099095099/Tempting-Death-The-Grim-Trilogy-1-by-Elizabeth-Holloway.pdf

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