Malicious PDF — malware analysis report

Static analysis result for SHA-256 880603e352044216…

MALICIOUS

PDF

20.7 KB Created: 2019-05-07 09:21:05 +01:00 Authoring application: mPDF 5.7
MD5: b52d4a25db1246d549832de22cce3d2b SHA-1: 54814de9b7c8ddbe7d79fcc80f0cf565913ae380 SHA-256: 880603e352044216536e474604016bc3e9240cf4e9a6333b7b7222e1459e7f72
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, which are presented as book titles to deceive users. The ML_NYX_PDF_MALICIOUS heuristic also flagged the document with high confidence. While no scripts were extracted, the presence of numerous external links suggests an attempt to redirect users to malicious content, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9923

Heuristics 3

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/1a08a07a07a00a01/At-The-President-s-Request-by-John-Keith-Roberts.pdf
    • http://muicuiu.dumb1.com/6a06a05a00a02a09/The-First-President-A-Life-of-John-L-Dube-Founding-President-of-the-ANC-by-Heather-Hughes.pdf
    • http://muicuiu.dumb1.com/2a04a03a05a00a07/Everybody-s-History-Indiana-s-Lincoln-Inquiry-and-the-Quest-to-Reclaim-a-President-s-Past-by-Keith-A-Erekson.pdf
    • http://muicuiu.dumb1.com/1a00a07a05a00a06/Gr-inne-by-Keith-Roberts.pdf
    • http://muicuiu.dumb1.com/1a01a04a05a01a02a08/John-Tyler-the-Accidental-President-by-Edward-P-Crapol.pdf
    • http://muicuiu.dumb1.com/1a00a08a02a05a01a00/John-Adams-2nd-President-of-the-United-States-by-Heidi-Elston.pdf
    • http://muicuiu.dumb1.com/2a02a06a02a07a01/Thanks-and-Have-Fun-Running-the-Country-Kids-Letters-to-President-Obama-by-Jory-John.pdf
    • http://muicuiu.dumb1.com/2a05a07a08a03a09/Contract-on-America-The-Mafia-Murder-of-President-John-F-Kennedy-by-David-E-Scheim.pdf
    • http://muicuiu.dumb1.com/9a06a06a08a06a03/Keith-Haring-The-Authorized-Biography-by-John-Gruen.pdf
    • http://muicuiu.dumb1.com/3a02a09a06a03/John-Oliver-Killens-A-Life-of-Black-Literary-Activism-by-Keith-Gilyard.pdf
    • http://muicuiu.dumb1.com/8a06a02a03a04/-quot-The-President-Has-Been-Shot-quot-The-Assassination-of-John-F-Kennedy-by-James-L-Swanson.pdf
    • http://muicuiu.dumb1.com/2a04a04a02a08a08/-quot-The-President-Has-Been-Shot-quot-The-Assassination-of-John-F-Kennedy-by-James-L-Swanson.pdf
    • http://muicuiu.dumb1.com/9a03a09a00a09a01/The-President-s-Affair-A-Dramatization-of-the-Clinton-Lewinsky-Affair-by-John-Gordon-Gray.pdf
    • http://muicuiu.dumb1.com/7a00a04a06a09a08/Conan-the-Valorous-by-John-Maddox-Roberts.pdf
    • http://muicuiu.dumb1.com/4a03a05a04a01a08/Space-Angel-by-John-Maddox-Roberts.pdf
    • http://muicuiu.dumb1.com/7a00a05a05a09a02/The-Roberts-Orme-Ancestry-by-John-F-Vallentine.pdf
    • http://muicuiu.dumb1.com/3a03a00a01a03a07/The-Steel-Kings-by-John-Maddox-Roberts.pdf
    • http://muicuiu.dumb1.com/1a00a08a07a08a05a01/Dutch-and-Gina-The-President-s-Girlfriend-The-President-s-Girlfriend-1-by-Mallory-Monroe.pdf
    • http://muicuiu.dumb1.com/3a03a00a01a03a02/The-Islander-Stormlands-Book-1-by-John-Maddox-Roberts.pdf
    • http://muicuiu.dumb1.com/2a01a00a05a03a01/SPQR-XII-Oracle-of-the-Dead-by-John-Maddox-Roberts.pdf