Malicious PDF — malware analysis report

Static analysis result for SHA-256 e92f5a74fc6450aa…

MALICIOUS

PDF

14.1 KB Created: 2019-05-02 19:27:05 +01:00 Authoring application: mPDF 5.7
MD5: b5e76a95640d26032cd8a4dd6e3eab8f SHA-1: 4448f7a2306d3b9960d06b02180dc81fc334772d SHA-256: e92f5a74fc6450aa546d2fe1e24a6da02319b02105acf059e03593e620a8671f
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Phishing:Spearphishing Attachment T1059.001 Command and Scripting Interpreter:PowerShell

The PDF file contains a large number of embedded links to external PDF documents, all hosted on the same dynamic DNS domain. This technique is often used to distribute malicious content or to engage in SEO poisoning to drive traffic to malicious sites. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9102

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/3099091096090093/Diary-of-Fanny-Burney-by-Fanny-Burney.pdf
    • http://loaminoo.linkpc.net/4096095090094093/Cecilia-by-Fanny-Burney.pdf
    • http://loaminoo.linkpc.net/3092092095090098/Cecilia-by-Fanny-Burney.pdf
    • http://loaminoo.linkpc.net/1090091090096094098/Evelina-and-the-Reef-Hag-Evelina-2-by-R-A-Donnelly.pdf
    • http://loaminoo.linkpc.net/8092091099094/Fanny-Being-the-True-History-of-the-Adventures-of-Fanny-Hackabout-Jones-by-Erica-Jong.pdf
    • http://loaminoo.linkpc.net/6092096098099091/Slave-of-the-Sioux--The-Fanny-Kelly-Captivity-Narrative-1864-Annotated-by-Fanny-Kelly.pdf
    • http://loaminoo.linkpc.net/5092090096095092/Madame-Presidentess-by-Nicole-Evelina.pdf
    • http://loaminoo.linkpc.net/3094093091093099/Daughter-of-Destiny-Guinevere-s-Tale-1-by-Nicole-Evelina.pdf
    • http://loaminoo.linkpc.net/2096099096096094/The-Revelation-Chronicles-by-Eric-C-Burney.pdf
    • http://loaminoo.linkpc.net/5097091097093/Zora-and-Nicky-by-Claudia-Mair-Burney.pdf
    • http://loaminoo.linkpc.net/1090094090090098092/Rentsch-Herold-Families-In-America-by-Mary-Burney-Matreyek.pdf
    • http://loaminoo.linkpc.net/2098091097093097/Murder-Mayhem-and-a-Fine-Man-Amanda-Bell-Brown-Mystery-1-by-Claudia-Mair-Burney.pdf
    • http://loaminoo.linkpc.net/1096093091096090/Equivocal-Beings-Politics-Gender-and-Sentimentality-in-the-1790s--Wollstonecraft-Radcliffe-Burney-Austen-by-Claudia-L-Johnson.pdf
    • http://loaminoo.linkpc.net/3095098099093091/Red-for-Revenge-by-Fanny-Blake.pdf
    • http://loaminoo.linkpc.net/4098090099092094/Fanny-by-Stephen-Cosgrove.pdf
    • http://loaminoo.linkpc.net/6092096098092097/Fed-Up-with-the-Fanny-by-Franklin-White.pdf
    • http://loaminoo.linkpc.net/4095090092097098/Fanny-by-Edmund-White.pdf
    • http://loaminoo.linkpc.net/1091095092091091091/The-Lyrics-by-Fanny-Howe.pdf
    • http://loaminoo.linkpc.net/6092096098092099/Women-of-a-Dangerous-Age-by-Fanny-Blake.pdf
    • http://loaminoo.linkpc.net/1091098096093099091/Italienisches-Bilderbuch-by-Fanny-Lewald.pdf
    • http://loaminoo.linkpc.net/1096093091096090/Equivocal-Beings-Politics-Gender-and-Sentimentality-in-the-1790s--Wollstonecraft-Ra

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