Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfb2421beb07dddc…

MALICIOUS

PDF

33.3 KB Created: 2019-04-30 04:06:20 +01:00 Authoring application: mPDF 5.7
MD5: cccf7ba7e55a0b781f0c3dc0163529ed SHA-1: 0b14aafb94c007dabf2c1fd81247b4b5f0aca83a SHA-256: bfb2421beb07dddcff5de655f7df2ce0ebf73ec4d29456a677842e2800d84ea4
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a large number of embedded URLs, forming a link farm. This heuristic suggests the document is designed to redirect users to external content, likely for SEO manipulation or to host malicious payloads. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted, and the document body was heavily obfuscated, preventing a deeper analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9908

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/9097091091096092/Production-And-Operations-Management-Dryden-Press-Series-In-Management-Science-And-Quantitative-M-by-Norman-Gaither.pdf
    • http://loaminoo.linkpc.net/1090093091095097091/Introduction-to-Cutting-and-Packing-Optimization-Problems-Modeling-Approaches-Solution-Methods-International-Series-in-Operations-Research-amp-Management-Science-by-Guntram-Scheithauer.pdf
    • http://loaminoo.linkpc.net/1090096092097094091/Designing-for-Eartquakes-A-Manual-for-Architects-Fema-454-December-2006-Risk-Management-Series-by-Federal-Emergency-Management-Agency.pdf
    • http://loaminoo.linkpc.net/1090095094093099091/FEMA-455-Handbook-for-Rapid-Visual-Screening-of-Buildings-to-Evaluate-Terrorism-Risks-Risk-Management-Series-by-Federal-Emergency-Management-Agency.pdf
    • http://loaminoo.linkpc.net/7099098091095091/Quantitative-Portfolio-Optimisation-Asset-Allocation-and-Risk-Management-by-Mikkel-Rasmussen.pdf
    • http://loaminoo.linkpc.net/6094098098090092/Operations-Management-by-Nigel-Slack.pdf
    • http://loaminoo.linkpc.net/6094098097095095/Hotel-Housekeeping-Operations-and-Management-by-G-Raghubalan.pdf
    • http://loaminoo.linkpc.net/8095097093099093/Film-Production-Management-by-Bastian-Clev-.pdf
    • http://loaminoo.linkpc.net/2090091092096093/The-Medici-Bank-Its-Organization-Management-Operations-and-Decline-by-Raymond-de-Roover.pdf
    • http://loaminoo.linkpc.net/9093093099095095/The-Power-of-Ethical-Management-by-Norman-V-Peale.pdf
    • http://loaminoo.linkpc.net/1090093094096096091/Investment-Management-Security-Analysis-and-Portfolio-Management-by-V-K-Bhalla.pdf
    • http://loaminoo.linkpc.net/6096094092099091/Gaia-An-Atlas-of-Planet-Management-by-Norman-Myers.pdf
    • http://loaminoo.linkpc.net/1090098097090096090/The-Shared-Burden-United-States-French-Coalition-Operations-in-the-European-Theater-of-World-War-II---Southern-France-to-the-Defeat-of-Germany-NORDWIND-Offensive-Churchill-Eisenhower-de-Gaulle-by-Progressive-Management.pdf
    • http://loaminoo.linkpc.net/1090097099098095093/Water-Policy-and-Management-Solving-the-Problems---Proceedings-of-the-21st-Annual-Conference-Sponsored-by-the-Water-Resources-Planning-and-Management-Held-in-Denver-Colorado-May-23-26-1994-by-Harry-Tuvel.pdf
    • http://loaminoo.linkpc.net/8097095099098092/A-Guide-to-the-Project-Management-Body-of-Knowledge-PMBOK-Guide--Vierte-Ausgabe-by-Project-Management-Institute.pdf
    • http://loaminoo.linkpc.net/1090098091092094098/Complex-Systems-Design-amp-Management-Proceedings-of-the-Sixth-International-Conference-on-Complex-Systems-Design-amp-Management-CSD-amp-M-2015-by-Gerard-Auvray.pdf
    • http://loaminoo.linkpc.net/1090098091093093096/Complex-Systems-Design-amp-Management-Proceedings-of-the-Fifth-International-Conference-on-Complex-Systems-Design-amp-Management-CSD-amp-M-2014-by-Frederic-Boulanger.pdf
    • http://loaminoo.linkpc.net/1091092096098090096/Knowledge-Science-Engineering-and-Management-First-International-Conference-KSEM-2006-Guilin-China-August-5-8-2006-Proceedings-by-Jerome-Lang.pdf
    • http://loaminoo.linkpc.net/1090091097090099099/Management-And-Cost-Accounting-With-quot-Management-And-Cost-Accounting-Professional-Questions-quot-And-quot-How-To-Write-Essays-And-Assignments-quot-by-Jonathan-Weyers.pdf
    • http://loaminoo.linkpc.net/1090095095092093092/Agile-Project-Management-Creating-Innovative-Products-Agile-Software-Development-Series-by-Jim-Highsmith.pdf
    • http://loaminoo.linkpc.net/1090095094093099091/FEMA-455-Handbook-for-Rap

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