Malicious PDF — malware analysis report

Static analysis result for SHA-256 34ebcf6e6ea0d945…

MALICIOUS

PDF

15.3 KB Created: 2019-05-07 05:34:05 +01:00 Authoring application: mPDF 5.7
MD5: 3259f7fc55cde9ea7d29589dbd6ed39c SHA-1: ea9fe639f772911c4f3119303bc18be0e9e9a2bc SHA-256: 34ebcf6e6ea0d945f45a9a833a96eb6d7aee50ba18ff67762fdf8cfabe6cdc02
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded URLs, identified as a link farm. While the document body is heavily obfuscated, the presence of numerous links to external resources suggests a malicious intent, possibly for SEO manipulation or to distribute further payloads. 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 0.9880

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://xiixmcuin.linkpc.net/8204207207209204/The-Rosie-Project-by-Graeme-Simsion----Sidekick-by-BookBuddy.pdf
    • http://xiixmcuin.linkpc.net/2204203203205207/The-Rosie-Project-by-Graeme-Simsion.pdf
    • http://xiixmcuin.linkpc.net/2208207202200204/The-Rosie-Project-Don-Tillman-1-by-Graeme-Simsion.pdf
    • http://xiixmcuin.linkpc.net/3208200207209/The-Rosie-Project-Don-Tillman-1-by-Graeme-Simsion.pdf
    • http://xiixmcuin.linkpc.net/1200207200200200209/The-Rosie-Project-By-Graeme-Simsion----Review-by-Expert-Book-Reviews.pdf
    • http://xiixmcuin.linkpc.net/2207206204200204/The-Rosie-Effect-by-Graeme-Simsion.pdf
    • http://xiixmcuin.linkpc.net/1204206204202206/The-Rosie-Effect-Don-Tillman-2-by-Graeme-Simsion.pdf
    • http://xiixmcuin.linkpc.net/1200200202206207/The-Rosie-Effect-Don-Tillman-2-by-Graeme-Simsion.pdf
    • http://xiixmcuin.linkpc.net/3209203201207202/The-Rosie-Effect-Don-Tillman-2-by-Graeme-Simsion.pdf
    • http://xiixmcuin.linkpc.net/4205200202205/The-Rosie-Effect-Don-Tillman-2-by-Graeme-Simsion.pdf
    • http://xiixmcuin.linkpc.net/8204207209202203/The-Rosie-Effect-sample-chapters-by-Graeme-Simsion.pdf
    • http://xiixmcuin.linkpc.net/1200207208200202203/Conversations-on-The-Rosie-Effect-A-Novel-By-Graeme-Simsion-Conversation-Starters-by-Daily-Books.pdf
    • http://xiixmcuin.linkpc.net/1200207200200208207/The-Rosie-Effect-A-Novel-by-Graeme-Simsion-Trivia-On-Books-by-Trivion-Books.pdf
    • http://xiixmcuin.linkpc.net/1200203201201201208/Allegiant-Divergent-Series-by-Veronica-Roth----Sidekick-by-BookBuddy.pdf
    • http://xiixmcuin.linkpc.net/1200207208200202204/Playing-with-Matches-The-Matchmaker-Project-2-by-N-G-Simsion.pdf
    • http://xiixmcuin.linkpc.net/3204207203209201/His-Bloody-Project-by-Graeme-Macrae-Burnet.pdf
    • http://xiixmcuin.linkpc.net/1201209204208205/Sidekick-Sidekick-in-the-City-1-by-Auralee-Wallace.pdf
    • http://xiixmcuin.linkpc.net/1201207204209207207/Everything-Rosie-The-Ultimate-Guide-for-Rosie-O-Donnell-Fans-by-Patrick-Spreng.pdf
    • http://xiixmcuin.linkpc.net/1201207204208203208/Everything-Rosie-The-Untimate-Guide-for-Rosie-O-Donnell-Fans-by-Patrick-Spreng.pdf
    • http://xiixmcuin.linkpc.net/6207204209208205/Australian-Theatre-Backstage-With-Graeme-Blundell-by-Graeme-Blundell.pdf
    • http://xiixmcuin.linkpc.net/12002

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