Malicious PDF — malware analysis report

Static analysis result for SHA-256 973483abf3106e3f…

MALICIOUS

PDF

22.0 KB Created: 2019-04-30 04:24:59 +01:00 Authoring application: mPDF 5.7
MD5: c6c55c39bcc43176ff183a70e8759d21 SHA-1: 4523071cbc8a4a8e956193ed8cd890f73d34a4e5 SHA-256: 973483abf3106e3f751e839a323dfff1683323ba29ae3e915db4db3d39c874c9
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to a domain that hosts numerous book-themed PDF files. The ML_NYX_PDF_MALICIOUS heuristic also flagged the document with high confidence. While no scripts were extracted, the structure and link farm suggest an attempt to manipulate search engine results or redirect users to potentially malicious content hosted on the loaminoo.linkpc.net domain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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/4090092094090096/The-Penguin-History-of-the-World-by-J-M-Roberts.pdf
    • http://loaminoo.linkpc.net/2097097098097090/The-Penguin-History-of-the-World-by-J-M-Roberts.pdf
    • http://loaminoo.linkpc.net/4098096099096098/World-History-Ancient-History-United-States-History-European-Native-American-Russian-Chinese-Asian-Indian-and-Australian-History-Wars-including-World-War-1-and-2-by-Adam-Brown.pdf
    • http://loaminoo.linkpc.net/4097091099096095/Rock-Chronicles-A-Visual-History-of-the-World-s-Greatest-250-Rock-Acts-by-David-Roberts.pdf
    • http://loaminoo.linkpc.net/1093099092091091/The-New-Penguin-Atlas-of-Medieval-History-by-Colin-McEvedy.pdf
    • http://loaminoo.linkpc.net/2095093097096095/The-Reformation-The-Penguin-History-of-the-Church-3-by-Owen-Chadwick.pdf
    • http://loaminoo.linkpc.net/1099094092098096/The-Penguin-Book-of-First-World-War-Poetry-by-Jon-Silkin.pdf
    • http://loaminoo.linkpc.net/9097097090093/Out-in-the-Dark-Poetry-of-the-First-World-War-in-Context-and-with-Basic-Notes-David-Roberts-by-David---Roberts.pdf
    • http://loaminoo.linkpc.net/1091095093094091097/Instructor-s-Resource-Manual-To-Accompany-The-Penguin-Handbook-And-Brief-Penguin-Handbook-Second-Edition-by-Susan-Schorn.pdf
    • http://loaminoo.linkpc.net/5091094097099090/The-Unnatural-History-of-the-Sea-by-Callum-Roberts.pdf
    • http://loaminoo.linkpc.net/8098090092097097/A-History-of-New-York-in-101-Objects-by-Sam-Roberts.pdf
    • http://loaminoo.linkpc.net/8098097090098091/History-s-Greatest-Lies-The-Startling-Truths-Behind-World-Events-our-History-Books-Got-Wrong-by-William-Weir.pdf
    • http://loaminoo.linkpc.net/1093097098099093/Hiccup-Champion-Of-The-World-by-Ken-Roberts.pdf
    • http://loaminoo.linkpc.net/4098098099095/A-History-of-the-English-Speaking-Peoples-Since-1900-by-Andrew-Roberts.pdf
    • http://loaminoo.linkpc.net/3092098091098094/Alone-on-the-Ice-The-Greatest-Survival-Story-in-the-History-of-Exploration-by-David-Roberts.pdf
    • http://loaminoo.linkpc.net/5090099093091098/The-Lion-Wakes-A-Modern-History-of-HSBC-by-Richard-Roberts.pdf
    • http://loaminoo.linkpc.net/1090097097090096092/Historicizing-the-Uses-of-the-Past-Scandinavian-Perspectives-on-History-Culture-Historical-Consciousness-and-Didactics-of-History-Related-to-World-War-II-by-Helle-Bjerg.pdf
    • http://loaminoo.linkpc.net/7091090093098097/Glocalization-How-Followers-of-Jesus-Engage-a-Flat-World-by-Bob-Roberts-Jr-.pdf
    • http://loaminoo.linkpc.net/1090090094099096095/Bundle-World-History-Volume-I-To-1800-Loose-leaf-Version-8th-LMS-Integrated-for-MindTap-History-1-term-6-months-Printed-Access-Card-by-William-J-Duiker.pdf
    • http://loaminoo.linkpc.net/4099098092095096/Guinness-World-Records-British-Hit-Singles-and-Albums-by-David-Roberts.pdf
    • http://loaminoo.linkpc.net/909

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