Malicious PDF — malware analysis report

Static analysis result for SHA-256 355e4e944612441e…

MALICIOUS

PDF

13.4 KB Created: 2019-04-30 01:41:43 +01:00 Authoring application: mPDF 5.7
MD5: 82adf2bca2fc22cbdc2b9e762c99c05d SHA-1: 169e585efcec7a557dd252459ea7eaa79d6024bb SHA-256: 355e4e944612441e64c250634492c4e21ab23672a028087e9424b30caa5525b0
68 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains an embedded JavaScript stream and a large number of external links, indicating an attempt to redirect users to malicious content. The heuristic 'PDF_SEO_LINK_FARM' specifically flags the mass external PDF link farm, with the dominant host being loaminoo.linkpc.net. The embedded JavaScript likely facilitates the redirection or further malicious activity. The document body, though heavily obfuscated, contains URLs that are also listed as IOCs.

Heuristics 3

  • 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 JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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/2099096095092099/Dark-Watch-The-Oregon-Files-3-by-Clive-Cussler.pdf
    • http://loaminoo.linkpc.net/8097098090092/Corsair-The-Oregon-Files-6-by-Clive-Cussler.pdf
    • http://loaminoo.linkpc.net/8097093099099/Sacred-Stone-The-Oregon-Files-2-by-Clive-Cussler.pdf
    • http://loaminoo.linkpc.net/1090094099099092/Skeleton-Coast-The-Oregon-Files-4-by-Clive-Cussler.pdf
    • http://loaminoo.linkpc.net/2099096095093090/Skeleton-Coast-The-Oregon-Files-4-by-Clive-Cussler.pdf
    • http://loaminoo.linkpc.net/6098098090/Typhoon-Fury-The-Oregon-Files-12-by-Clive-Cussler.pdf
    • http://loaminoo.linkpc.net/8097099096097/Golden-Buddha-Sacred-Stone-The-Oregon-Files-1-2-by-Clive-Cussler.pdf
    • http://loaminoo.linkpc.net/8097095098099/The-Navigator-NUMA-Files-7-by-Clive-Cussler.pdf
    • http://loaminoo.linkpc.net/1090090097098098/Polar-Shift-NUMA-Files-6-by-Clive-Cussler.pdf
    • http://loaminoo.linkpc.net/4093091091091098/White-Death-NUMA-Files-4-by-Clive-Cussler.pdf
    • http://loaminoo.linkpc.net/4095090094099094/Ghost-Ship-NUMA-Files-12-by-Clive-Cussler.pdf
    • http://loaminoo.linkpc.net/1093099096091099/Deep-Six-by-Clive-Cussler.pdf
    • http://loaminoo.linkpc.net/4090095092091099/Piranha-by-Clive-Cussler.pdf
    • http://loaminoo.linkpc.net/1090098090096090090/Incursi-n-nocturna-by-Clive-Cussler.pdf
    • http://loaminoo.linkpc.net/4092098093094093/The-Tombs-Fargo-Adventure-4-by-Clive-Cussler.pdf
    • http://loaminoo.linkpc.net/3098091095098099/The-Bootlegger-Isaac-Bell-7-by-Clive-Cussler.pdf
    • http://loaminoo.linkpc.net/4093091091092093/Deep-Six-Dirk-Pitt-7-by-Clive-Cussler.pdf
    • http://loaminoo.linkpc.net/4098090095094/Dragon-Dirk-Pitt-10-by-Clive-Cussler.pdf
    • http://loaminoo.linkpc.net/5090092090097092/The-Cutthroat-Isaac-Bell-10-by-Clive-Cussler.pdf
    • http://loaminoo.linkpc.net/3096092098095096/Arctic-Drift-Dirk-Pitt-20-by-Clive-Cussler.pdf
    • http://loaminoo.linkpc.net/40920980930

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