Malicious PDF — malware analysis report

Static analysis result for SHA-256 856c6b52d94d72da…

MALICIOUS

PDF

27.3 KB Created: 2019-05-02 17:38:12 +01:00 Authoring application: mPDF 5.7
MD5: 8352a3bdb640cbd08d0642a2ac235287 SHA-1: 024fa77171cef8f3b4e1a4eade73e8ccf53a569a SHA-256: 856c6b52d94d72dafe1c457619c2d800f96d629c055b43fc5d2d9416239fefe7
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, identified as a link farm, which is a common technique for SEO poisoning or distributing malicious content. The ML classifier also flagged this PDF as malicious. The embedded URLs, while marked as benign by reputation services, are part of the link farm and likely serve as a lure to a malicious destination.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9905

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://unieoooq.linkpc.net/14e04e94e24e74e34e7/Briefe-der-Herzogin-ELisabeth-Charlotte-von-Orleans-an-ihre-fruhere-hofmeisterin-A-K-v-Harling-und-deren-Gemahl-Geh-Rath-fr-v-Harling-zu-Hannover-by-Charlotte-Elisabeth-duchesse-d-39-Orl-ans.pdf
    • http://unieoooq.linkpc.net/14e04e94e24e74e34e4/Auf-dass-wir-klug-werden-Das-Leben-der-Herzogin-Elisabeth-zu-Sachsen-Teil-1-by-Anja-Zimmer.pdf
    • http://unieoooq.linkpc.net/14e04e84e14e84e94e3/Hellenistische-Kultstatuen-Und-Ihre-Vorbilder-by-Elisabeth-Ida-Faulstich.pdf
    • http://unieoooq.linkpc.net/44e84e54e94e44e8/Postcards-from-Across-the-Pond-Dispatches-from-an-Accidental-Expat-by-Michael-Harling.pdf
    • http://unieoooq.linkpc.net/84e54e04e44e64e9/The-Heir-of-Redclyffe-by-Charlotte-M-Yonge-Romance-Novel-Charlotte-Mary-Yonge-11-August-1823---24-May-1901-Was-an-English-Novelist-Known-for-Her-Huge-Output-Now-Mostly-Out-of-Print-by-Charlotte-Mary-Yonge.pdf
    • http://unieoooq.linkpc.net/74e54e34e84e94e8/Charlotte-The-Price-of-Vengence-Charlotte-and-Associates-Investigators-Book-1-by-James-Moore.pdf
    • http://unieoooq.linkpc.net/14e14e74e64e54e44e5/Die-Ausstellung-quot-Vernichtungskrieg-Verbrechen-Der-Wehrmacht-1941-Bis-1944-quot-in-Bonn-Vom-29-9--1-11-1998-Eine-Dokumentation-by-Sabine-Harling.pdf
    • http://unieoooq.linkpc.net/34e74e44e84e34e8/Charlotte-A-Diary-in-Pictures-by-Charlotte-Salomon.pdf
    • http://unieoooq.linkpc.net/14e04e24e84e24e54e2/Denkwurdigkeiten-Der-Prinzessin-Caroline-In-Briefen-an-Ihre-Tochter-Die-Prinzessin-Charlotte-by-Thomas-Ashe.pdf
    • http://unieoooq.linkpc.net/84e94e24e84e8/The-Letters-of-Charlotte-Bront-With-a-Selection-of-Letters-by-Family-and-Friends-Volume-I-1829-1847-by-Charlotte-Bront-.pdf
    • http://unieoooq.linkpc.net/94e84e54e44e24e1/Villette-by-Charlotte-Bronte-Illustrated-Delphi-Parts-Edition-The-Brontes-Book-3-by-Charlotte-Bront-.pdf
    • http://unieoooq.linkpc.net/84e24e24e14e74e7/Habits-The-Mother-s-Secret-to-Success-Charlotte-Mason-Topics-Book-1-by-Charlotte-M-Mason.pdf
    • http://unieoooq.linkpc.net/14e04e94e24e64e84e4/Briefe-Von-Goethes-Mutter-an-Die-Herzogin-Anna-Amalia-by-Karl-Heinemann.pdf
    • http://unieoooq.linkpc.net/84e54e74e54e64e0/VILLETTE-by-Charlotte-Bronte-author-of-Jane-Eyre-Shirley-Villette-Professor-Annotated-by-her-sister-s-The-Tenant-of-Wildfell-Hall-Agnes-Grey-and-Wuthering-Heights-by-Charlotte-Bront-.pdf
    • http://unieoooq.linkpc.net/54e34e24e04e04e5/VILLETTE-by-Charlotte-Bronte-author-of-Jane-Eyre-Shirley-Villette-Professor-Annotated-by-her-sister-s-The-Tenant-of-Wildfell-Hall-Agnes-Grey-and-Wuthering-Heights-by-Charlotte-Bront-.pdf
    • http://unieoooq.linkpc.net/54e64e84e64e54e8/The-Incredible-Charlotte-Sycamore-Charlotte-Sycamore-1-by-Kate-Maddison.pdf
    • http://unieoooq.linkpc.net/44e24e14e14e44e7/Elisabeth-Sladen-The-Autobiography-by-Elisabeth-Sladen.pdf
    • http://unieoooq.linkpc.net/64e24e94e94e24e4/The-Letters-of-Charlotte-Bront-by-Charlotte-Bront-.pdf
    • http://unieoooq.linkpc.net/74e24e64e94e2/Let-Me-be-a-Woman-by-Elisabeth-Elliot.pdf
    • http://unieoooq.linkpc.net/74e04e44e94e54e1/Diptyque-by-Elisabeth-de-Feydeau.pdf
    • http://unieoooq.linkpc.net/84e54e04e44e64e9/The-Heir-of-Redclyffe-by-Charlotte-M-Yonge-Romance-Novel-Charlotte-Mary-Yonge-11-August-1823---24-May-1901-Was-an-English-Novelist-Known-for-Her-Huge-Output-Now-Mostly-Out-of-Pr

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