Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a55402f75523245…

MALICIOUS

PDF

24.4 KB Created: 2019-05-03 05:19:46 +01:00 Authoring application: mPDF 5.7
MD5: a080a9a5954f62749dc0ea77b1ab3d3f SHA-1: 33cf94bb613dc5a7e8e36b8f1fa0db9c127ba626 SHA-256: 0a55402f755232459395fd562ca3115d5be218ea14c33bd83d6aab743d99d141
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, many of which are structured to appear as links to historical documents. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass external PDF link farm, suggesting the primary purpose is to drive traffic to these external resources. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9901

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://xiixmcuin.linkpc.net/3203201206201201/Slave-Narratives-a-Folk-History-of-Slavery-in-the-United-States-From-Interviews-with-Former-Slaves-Mississippi-Narratives-by-Work-Projects-Administration.pdf
    • http://xiixmcuin.linkpc.net/1201206202203204207/Pennsylvania-A-Guide-to-the-Keystone-State-by-Work-Projects-Administration.pdf
    • http://xiixmcuin.linkpc.net/5203200202205202/12-Years-a-Slave-Annotated-with-Original-Illustrations-Timeline-Biography-amp-Quiz-PLUS-Five-Classic-Slave-Narratives-Incl-Uncle-Tom-s-Cabin-by-Solomon-Northup.pdf
    • http://xiixmcuin.linkpc.net/4203202208206206/The-Classic-Slave-Narratives-by-Henry-Louis-Gates-Jr-.pdf
    • http://xiixmcuin.linkpc.net/5201208202205202/The-Work-of-Reconstruction-From-Slave-to-Wage-Laborer-in-South-Carolina-1860-1870-by-Julie-Saville.pdf
    • http://xiixmcuin.linkpc.net/8206205203200209/Essential-System-Administration-Tools-and-Techniques-for-Linux-and-Unix-Administration-by-leen-Frisch.pdf
    • http://xiixmcuin.linkpc.net/7201209204207202/Alabama-Studio-Sewing-Patterns-A-Guide-to-Customizing-a-Hand-Stitched-Alabama-Chanin-Wardrobe-by-Natalie-Chanin.pdf
    • http://xiixmcuin.linkpc.net/7206203209201200/Amazing-Math-Projects-Projects-You-Can-Build-Yourself-by-Laszlo-C-Bardos.pdf
    • http://xiixmcuin.linkpc.net/6204201209201200/When-Work-Doesn-t-Work-Anymore-Women-Work-and-Identity-by-Elizabeth-Perle-Mckenna.pdf
    • http://xiixmcuin.linkpc.net/7204201209205/When-I-Was-a-Slave-Memoirs-from-the-Slave-Narrative-Collection-by-Norman-R-Yetman.pdf
    • http://xiixmcuin.linkpc.net/6202203208203200/Woodworking-Projects-A-Guide-for-Beginner-Woodworking-Basics-and-Projects-by-S-FATOU.pdf
    • http://xiixmcuin.linkpc.net/6202203208201200/WOODWORKING-PROJECTS-A-Guide-For-Beginner-Woodworking-Basics-And-Projects-by-S-FATOU.pdf
    • http://xiixmcuin.linkpc.net/4200202208200202/Viking-Slave-Submission-of-the-Thrall-Gay-Size-Kink-and-Knotting-Erotic-Romance-The-Beast-King-s-Slave-by-Lily-May-Winters.pdf
    • http://xiixmcuin.linkpc.net/2203205205207205/Slave-in-Training-The-Slave-1-by-Danny-Tyran.pdf
    • http://xiixmcuin.linkpc.net/1202208205208206/Slave-Girl-Flogging-Stool-The-Atkoi-Slave-Girl-Book-5-by-Henry-Sparrowhawk.pdf
    • http://xiixmcuin.linkpc.net/2200205207209209/Love-Slave-for-Two-Beginnings-Love-Slave-for-Two-05-by-Tymber-Dalton.pdf
    • http://xiixmcuin.linkpc.net/1207209208203203/Love-Slave-for-Two-Reunions-Love-Slave-for-Two-3-by-Tymber-Dalton.pdf
    • http://xiixmcuin.linkpc.net/1208204207200202/Do-More-Great-Work-Stop-the-Busywork-Start-the-Work-That-Matters-by-Michael-Bungay-Stanier.pdf
    • http://xiixmcuin.linkpc.net/8202200207205204/Getting-Ahead-of-ADHD-What-Next-Generation-Science-Says-about-Treatments-That-Work-and-How-You-Can-Make-Them-Work-for-Your-Child-by-Joel-T-Nigg.pdf
    • http://xiixmcuin.linkpc.net/1209207200204206/Never-Work-Again-Work-Less-Earn-More-and-Live-Your-Freedom-by-Erlend-Bakke.pdf