Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5a1d463189caff4…

MALICIOUS

PDF

15.5 KB Created: 2019-04-30 02:23:18 +01:00 Authoring application: mPDF 5.7
MD5: c036fc21555189c28de8c0043cb67122 SHA-1: ded4226515db83d2976afb25f6e6d17319f4c8f5 SHA-256: c5a1d463189caff4b261341af7e6aa5557114ef6bee3993a6b3af81f9fd127df
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier as malicious. Static analysis revealed a large number of embedded external links, many of which point to PDF files hosted on the same domain. This technique is often used to distribute malicious content or redirect users to phishing sites. 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://loaminoo.linkpc.net/9095099099/And-the-Mountains-Echoed-by-Khaled-Hosseini.pdf
    • http://loaminoo.linkpc.net/6092099092098/And-the-Mountains-Echoed-by-Khaled-Hosseini.pdf
    • http://loaminoo.linkpc.net/4098098093097092/And-the-Mountains-Echoed-by-Khaled-Hosseini.pdf
    • http://loaminoo.linkpc.net/8090097093095092/A-Mem-ria-do-Mar-by-Khaled-Hosseini.pdf
    • http://loaminoo.linkpc.net/4098093098096096/Sea-Prayer-by-Khaled-Hosseini.pdf
    • http://loaminoo.linkpc.net/9092090092097095/Modlitwa-do-morza-by-Khaled-Hosseini.pdf
    • http://loaminoo.linkpc.net/7097097097092/The-Kite-Runner-by-Khaled-Hosseini.pdf
    • http://loaminoo.linkpc.net/3090093090093091/The-Kite-Runner-by-Khaled-Hosseini.pdf
    • http://loaminoo.linkpc.net/1099091093094092/The-Kite-Runner-by-Khaled-Hosseini.pdf
    • http://loaminoo.linkpc.net/1090090090093090/A-Thousand-Splendid-Suns-by-Khaled-Hosseini.pdf
    • http://loaminoo.linkpc.net/5099098099092091/Cidade-do-Sol---Edicao-de-2013-by-Khaled-Hosseini.pdf
    • http://loaminoo.linkpc.net/5090099091096/The-Kite-Runner-Graphic-Novel-by-Khaled-Hosseini.pdf
    • http://loaminoo.linkpc.net/4098098093092097/A-Thousand-Splendid-Suns-by-Khaled-Hosseini.pdf
    • http://loaminoo.linkpc.net/7090097096095099/A-Thousand-Splendid-Suns-Platinum-Readers-Circle-by-Khaled-Hosseini.pdf
    • http://loaminoo.linkpc.net/9092090096097097/The-Kite-Runner-by-Khaled-Hosseini-l-Summary-amp-Study-Guide-by-BookRags.pdf
    • http://loaminoo.linkpc.net/8091091090092093/Bookclub-in-a-Box-Discusses-Khaled-Hosseini-s-Novel-The-Kite-Runner-by-Marilyn-Herbert.pdf
    • http://loaminoo.linkpc.net/9092090096098092/Summary-and-Analysis-of-The-Kite-Runner-Based-on-the-Book-by-Khaled-Hosseini-by-Worth-Books.pdf
    • http://loaminoo.linkpc.net/8091090098091097/Khaled-Hosseini-quot-A-Thousand-Splendid-Suns-quot-by-Ayse-G-kce.pdf
    • http://loaminoo.linkpc.net/3095096091093/Mountains-Beyond-Mountains-The-Quest-of-Dr-Paul-Farmer-a-Man-Who-Would-Cure-the-World-by-Tracy-Kidder.pdf
    • http://loaminoo.linkpc.net/4094099094096095/Mistress-by-Anita-Nair.pdf

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