Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5a26fb11cae9b44…

MALICIOUS

PDF

12.7 KB Created: 2019-04-30 02:13:51 +01:00 Authoring application: mPDF 5.7
MD5: d913511bf09ff88f2d12325bf1ef6457 SHA-1: 83e3a685c8d49548369b289819ef0d87045c221c SHA-256: f5a26fb11cae9b44ab813e1dcd4aada31e1cec19bd69504af1cad0b1ab5fd22c
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier as malicious and contains a large number of embedded links to external PDF files hosted on loaminoo.linkpc.net. This heuristic, PDF_SEO_LINK_FARM, indicates a potential link farm designed to manipulate search engine results or distribute further malicious content. While the specific intent of the link farm is not fully clear from the provided data, the sheer volume and nature of the links suggest a malicious distribution or SEO manipulation tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8780

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/2092099099093096/Her-Rogue-Knight-by-Natasha-Knight.pdf
    • http://loaminoo.linkpc.net/9094095093095091/Pierced-By-Danger-Pierced-1-by-Lashell-Collins.pdf
    • http://loaminoo.linkpc.net/3094094090090094/Theirs-to-Take-by-Natasha-Knight.pdf
    • http://loaminoo.linkpc.net/2098093092096096/Given-to-the-Savage-by-Natasha-Knight.pdf
    • http://loaminoo.linkpc.net/4094090091098094/Given-to-the-Savage-by-Natasha-Knight.pdf
    • http://loaminoo.linkpc.net/3090091090099098/Alpha-by-Natasha-Knight.pdf
    • http://loaminoo.linkpc.net/2099095097090092/Deviant-by-Natasha-Knight.pdf
    • http://loaminoo.linkpc.net/3090096098097092/Retribution-by-Natasha-Knight.pdf
    • http://loaminoo.linkpc.net/2092099097091090/Captive-s-Desire-by-Natasha-Knight.pdf
    • http://loaminoo.linkpc.net/3097094095/Salvatore-Benedetti-Brothers-1-by-Natasha-Knight.pdf
    • http://loaminoo.linkpc.net/3094092090090095/The-Dark-Knight-s-Captive-Bride-by-Natasha-Wild.pdf
    • http://loaminoo.linkpc.net/7094092092092/Pierced-Love-by-T-H-Snyder.pdf
    • http://loaminoo.linkpc.net/8095097099090/Pierced-Lucian-amp-Lia-1-by-Sydney-Landon.pdf
    • http://loaminoo.linkpc.net/1097091094095091/Take-Me-Break-Me-Pierced-Hearts-1-by-Cari-Silverwood.pdf
    • http://loaminoo.linkpc.net/3094098090099090/Pierced-Hearts-Volume-3-by-Cari-Silverwood.pdf
    • http://loaminoo.linkpc.net/3097090090095091/Bind-and-Keep-Me-Pierced-Hearts-2-by-Cari-Silverwood.pdf
    • http://loaminoo.linkpc.net/2096099096099092/Bind-and-Keep-Me-Pierced-Hearts-2-by-Cari-Silverwood.pdf
    • http://loaminoo.linkpc.net/3094096099093094/Yield-Pierced-Hearts-5-by-Cari-Silverwood.pdf
    • http://loaminoo.linkpc.net/2099092091094098/Seize-me-From-Darkness-Pierced-Hearts-4-by-Cari-Silverwood.pdf
    • http://loaminoo.linkpc.net/9094095094092090/The-Pierced-Heart-Charles-Maddox-4-by-Lynn-Shepherd.pdf
    • http://loaminoo.linkpc.net/1097091094095

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