Malicious PDF — malware analysis report

Static analysis result for SHA-256 1baf426b6ae3375b…

MALICIOUS

PDF

16.7 KB Created: 2019-05-03 17:58:14 +01:00 Authoring application: mPDF 5.7
MD5: f2eb4bfe585c0ec4d5702a2e80e4bed5 SHA-1: a55f74e8dac27a011408f92284707beb4b2ace81 SHA-256: 1baf426b6ae3375b93c615234525295064ab55662fe82e23dce102ae46d7a436
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, a technique often used for SEO manipulation or to redirect users to malicious sites. The ML classifier also flagged this PDF as malicious. While the specific URLs extracted were classified as benign, the overall structure and heuristic firings strongly suggest a malicious intent to leverage these links for a harmful purpose.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9788

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://cefasfese.4pu.com/1738737736733733/Fighter-Pilot-The-Memoirs-of-Legendary-Ace-Robin-Olds-by-Robin-Olds.pdf
    • http://cefasfese.4pu.com/8737732739734735/Odes-by-Sharon-Olds.pdf
    • http://cefasfese.4pu.com/2731733734730/The-Dead-and-the-Living-by-Sharon-Olds.pdf
    • http://cefasfese.4pu.com/1730739735737735/One-Secret-Thing-by-Sharon-Olds.pdf
    • http://cefasfese.4pu.com/1737730734737733/Bucking-the-Tiger-A-Novel-by-Bruce-Olds.pdf
    • http://cefasfese.4pu.com/1734739737738/The-Unswept-Room-by-Sharon-Olds.pdf
    • http://cefasfese.4pu.com/2732739739737/Stag-s-Leap-Poems-by-Sharon-Olds.pdf
    • http://cefasfese.4pu.com/3733734735733734/Best-Stories-for-Seven-Year-Olds-by-Enid-Blyton.pdf
    • http://cefasfese.4pu.com/4730737732738736/My-Life-As-A-Lumberjack-or-How-I-Fell-For-the-Wrong-Guy-by-Sara-V-Olds.pdf
    • http://cefasfese.4pu.com/4735739735732/The-Gold-Cell-Knopf-Poetry-Series-by-Sharon-Olds.pdf
    • http://cefasfese.4pu.com/3730739732732739/The-Lonely-American-Drifting-Apart-in-the-Twenty-first-Century-by-Jacqueline-Olds.pdf
    • http://cefasfese.4pu.com/1731736737739734730/In-the-Skies-over-Europe-The-Memoirs-of-Luftwaffe-Fighter-Pilot-G-nther-Scholz-by-G-nther-Scholz.pdf
    • http://cefasfese.4pu.com/3730738731733732/Batman-and-Robin-Volume-6-The-Hunt-for-Robin-by-Peter-J-Tomasi.pdf
    • http://cefasfese.4pu.com/8739738738739730/The-Great-Indian-Phonebook-How-the-Mass-Mobile-Changes-Business-Politics-and-Daily-Life-Robin-Jeffrey-and-Assa-Doron-by-Robin-Jeffrey.pdf
    • http://cefasfese.4pu.com/1731733731736736732/Fighter-Pilot-by-McScotch.pdf
    • http://cefasfese.4pu.com/3739734736737732/Dagger-American-Fighter-Pilot-by-Sam-J-D-Hunt.pdf
    • http://cefasfese.4pu.com/1731733731736736737/War-For-the-Hell-of-It-A-Fighter-Pilot-s-View-of-Vietnam-by-Ed-Cobleigh.pdf
    • http://cefasfese.4pu.com/2736736739736737/Boyd-The-Fighter-Pilot-Who-Changed-the-Art-of-War-by-Robert-Coram.pdf
    • http://cefasfese.4pu.com/3730733739734730/The-Red-Fighter-Pilot-The-Autobiography-of-the-Red-Baron-by-Manfred-von-Richthofen.pdf
    • http://cefasfese.4pu.com/1731733731737731738/Spitfire-The-Experiences-of-a-Battle-of-Britain-Fighter-Pilot-by-B-J-Ellan.pdf
    • http://cefasfese.4pu.com/1731736737739

Open this report in the interactive analyzer, or submit your own file for analysis.