Malicious PDF — malware analysis report

Static analysis result for SHA-256 d693f47c3c533874…

MALICIOUS

PDF

27.4 KB Created: 2019-04-30 04:09:26 +01:00 Authoring application: mPDF 5.7
MD5: 4cdc4ad4192ecac8daabcd987375d2b4 SHA-1: 4f6a9da6a10c44ee68dc2d8fd3052a47b5ba1c83 SHA-256: d693f47c3c5338745a3051422ac3423b258d20dddc55352fe82a458a8c7edb86
90 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious with high confidence. The embedded URLs likely serve to redirect users to malicious content or to manipulate search engine rankings. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9695

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/1a01a08a08a04a07a06/BARENREITER-LUBECK-VINCENT---NEW-EDITION-OF-THE-COMPLETE-ORGAN-AND-KEYBOARD-WORKS-VOL-1---ORGAN-HARPSICHORD-Classical-sheets-Organ-by-Lubeck.pdf
    • http://muicuiu.dumb1.com/3a02a02a08a04a08/Paragon-Walk-Charlotte-amp-Thomas-Pitt-3-by-Anne-Perry.pdf
    • http://muicuiu.dumb1.com/9a05a08a00a07a00/Austrian-Noble-Houses-House-of-Babenberg-House-of-Schaffgotsch-House-of-Kinsky-House-of-Graben-Von-Stein-House-of-Zierotin-by-Books-LLC.pdf
    • http://muicuiu.dumb1.com/5a03a04a08a02/The-Walk-of-the-Spirit---The-Walk-of-Power-The-Vital-Role-of-Praying-in-Tongues-by-Dave-Roberson.pdf
    • http://muicuiu.dumb1.com/1a00a03a04a02a03a01/Perry-Rhodan-Paket-17-Bardioc-Teil-1-Perry-Rhodan-Heftromane-800-bis-849-German-Edition-by-Perry-Rhodan.pdf
    • http://muicuiu.dumb1.com/1a04a02a06a08a01/Walk-of-the-Spirits-Walk-1-by-Richie-Tankersley-Cusick.pdf
    • http://muicuiu.dumb1.com/3a03a07a05a04a07/The-Walk-West-A-Walk-Across-America-2-by-Peter-Jenkins.pdf
    • http://muicuiu.dumb1.com/5a04a00a05a01a08/Purging-Your-House-Pruning-Your-Family-Tree-How-to-Rid-Your-Home-and-Family-of-Demonic-Influence-and-Generational-Oppression-by-Perry-Stone.pdf
    • http://muicuiu.dumb1.com/4a09a06a05a06a08/Styx-Walk-Of-Shame-2nd-Generation-2-Walk-of-Shame-5-by-Victoria-Ashley.pdf
    • http://muicuiu.dumb1.com/4a04a03a02a07a02/Walk-Beside-Me-Walk-2-by-H-J-Bellus.pdf
    • http://muicuiu.dumb1.com/4a04a03a08a03a07/Walk-Me-Down-Walk-1-by-H-J-Bellus.pdf
    • http://muicuiu.dumb1.com/1a01a09a01a02a05a05/Perry-Rhodan-126-Die-Schatten-greifen-an-Perry-Rhodan---Heftromane-126-by-Clark-Darlton.pdf
    • http://muicuiu.dumb1.com/1a01a06a05a00a03a03/Perry-Rhodan-Neo-Paket-10-Perry-Rhodan-Neo-Heftromane-97-bis-100-by-Michael-H-Buchholz.pdf
    • http://muicuiu.dumb1.com/5a09a08a06a05/Grayson-Perry-Portrait-Of-The-Artist-As-A-Young-Girl-by-Grayson-Perry.pdf
    • http://muicuiu.dumb1.com/1a07a04a00a09a05/The-Night-Walk-Men-The-Night-Walk-Men-1-by-Jason-McIntyre.pdf
    • http://muicuiu.dumb1.com/1a01a02a03a03a02a07/Perry-Rhodan-1072-Karawane-nach-Magellan-Heftroman-Perry-Rhodan-Zyklus-quot-Die-kosmische-Hanse-quot-by-Ernst-Vlcek.pdf
    • http://muicuiu.dumb1.com/9a06a01a01a05a09/Perry-Rhodan-2074-Neun-Tage-des-Zitterns-Heftroman-Perry-Rhodan-Zyklus-quot-Die-Solare-Residenz-quot-by-Hans-Kneifel.pdf
    • http://muicuiu.dumb1.com/1a00a05a09a02a05a07/Perry-Rhodan-1195-Krisenherd-Andro-Beta-Heftroman-Perry-Rhodan-Zyklus-quot-Die-endlose-Armada-quot-by-H-G-Francis.pdf
    • http://muicuiu.dumb1.com/1a00a05a09a02a05a06/Perry-Rhodan-1159-Seth-Apophis-Heftroman-Perry-Rhodan-Zyklus-quot-Die-endlose-Armada-quot-by-Kurt-Mahr.pdf
    • http://muicuiu.dumb1.com/1a01a00a01a07a02a01/Perry-Rhodan-1912-Der-Zylinder-Mann-Heftroman-Perry-Rhodan-Zyklus-quot-Der-Sechste-Bote-quot-by-Horst-Hoffmann.pdf
    • http://muicuiu.dumb1.com/5a03a04a08a0