Malicious PDF — malware analysis report

Static analysis result for SHA-256 adb48a5e301ca9d1…

MALICIOUS

PDF

18.9 KB Created: 2019-05-05 08:30:55 +01:00 Authoring application: mPDF 5.7
MD5: 28d34403dfcb44447eefd1a63af42176 SHA-1: cc6d7bbc2e316fcb940227a6ea0e023eeb285535 SHA-256: adb48a5e301ca9d1876a63c660a722fc3efef07dd07ae908cf9e54ef19bb02cd
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 with high confidence. Static analysis revealed a critical heuristic firing for a PDF link farm, indicating the document contains numerous external links. These links, such as http://muicuiu.dumb1.com/4a02a02a09a09a08/Repentance-Empire-Saga-5-Space-Empire-Trilogy-2-by-Michael-J-Findley.pdf, are likely intended to redirect users to malicious or spam content, constituting a phishing or traffic-driving attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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://muicuiu.dumb1.com/4a02a02a09a09a08/Repentance-Empire-Saga-5-Space-Empire-Trilogy-2-by-Michael-J-Findley.pdf
    • http://muicuiu.dumb1.com/5a00a05a05a09a09/Daughter-of-the-Empire-The-Empire-Trilogy-Book-1-by-Raymond-E-Feist.pdf
    • http://muicuiu.dumb1.com/4a06a09a05a02a01/Daughter-of-the-Empire-The-Empire-Trilogy-1-by-Raymond-E-Feist.pdf
    • http://muicuiu.dumb1.com/4a07a01a01a07a06/Servant-of-the-Empire-The-Empire-Trilogy-2-by-Raymond-E-Feist.pdf
    • http://muicuiu.dumb1.com/4a00a02a00a03a02/Empire-of-Secrets-British-Intelligence-the-Cold-War-and-the-Twilight-of-Empire-by-Calder-Walton.pdf
    • http://muicuiu.dumb1.com/9a00a07a08a02/Revolutionary-Empire-The-Rise-of-the-English-Speaking-Empire-from-the-Fifteenth-Century-to-the-1780s-by-Angus-Calder.pdf
    • http://muicuiu.dumb1.com/5a08a09a09a08a01/Mro-Un-empire-sur-le-Nil-Empire-on-the-Nile-by-Guillemette-Andreu-Lanoe.pdf
    • http://muicuiu.dumb1.com/1a05a02a01a03a06/Dawn-Of-Empire-Eskkar-Saga-1-by-Sam-Barone.pdf
    • http://muicuiu.dumb1.com/1a05a08a00a06a06/Empire-Ascendant-Worldbreaker-Saga-2-by-Kameron-Hurley.pdf
    • http://muicuiu.dumb1.com/6a09a02a05a03/Empire-of-the-Ants-La-Saga-des-Fourmis-1-by-Bernard-Werber.pdf
    • http://muicuiu.dumb1.com/4a02a09a00a01a09/Carnelians-Saga-of-the-Skolian-Empire-14-by-Catherine-Asaro.pdf
    • http://muicuiu.dumb1.com/2a06a05a00a04a09/The-Final-Key-Saga-of-the-Skolian-Empire-11-The-Triad-2-by-Catherine-Asaro.pdf
    • http://muicuiu.dumb1.com/2a06a05a00a02a09/Schism-Saga-of-the-Skolian-Empire-10-The-Triad-1-by-Catherine-Asaro.pdf
    • http://muicuiu.dumb1.com/2a06a05a01a08a07/The-Moon-s-Shadow-Saga-of-the-Skolian-Empire-8-by-Catherine-Asaro.pdf
    • http://muicuiu.dumb1.com/1a07a07a07a03a02/The-Radiant-Seas-Saga-of-the-Skolian-Empire-4-by-Catherine-Asaro.pdf
    • http://muicuiu.dumb1.com/3a08a05a06a09a05/The-Oxford-History-of-the-British-Empire-Volume-I-The-Origins-of-Empire-British-Overseas-Enterprise-to-the-Close-of-the-Seventeenth-Century-Vol-1-by-Nicholas-Canny.pdf
    • http://muicuiu.dumb1.com/5a04a04a07a03a07/Empire-du-Soleil-Empire-of-the-Sun-1-by-J-G-Ballard.pdf
    • http://muicuiu.dumb1.com/4a03a03a07a01a02/Lightning-Strike-Saga-of-the-Skolian-Empire-2-part-1-of-2-by-Catherine-Asaro.pdf
    • http://muicuiu.dumb1.com/8a09a04a03a04a03/A-Senhora-do-Imp-rio-The-Empire-Trilogy-3-by-Raymond-E-Feist.pdf
    • http://muicuiu.dumb1.com/1a07a00a03a08a07/New-Year-in-Manhattan-The-Empire-State-Trilogy-3-by-Louise-Bay.pdf
    • http://muicuiu.dumb1.com/9a00a07a08a02/Revolutionary-Empire-The-Rise-of-the-English-Speaking-Empire-from-the-Fifteenth-Century-to-the-1780s-by-Angus-Cal

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