Malicious PDF — malware analysis report

Static analysis result for SHA-256 b25d313db2fc62a1…

MALICIOUS

PDF

26.8 KB Created: 2019-05-02 18:36:16 +01:00 Authoring application: mPDF 5.7
MD5: 468c1f9f3de62168db2d7818094adcd0 SHA-1: e4b3fed244ce5617fc7c42ebc1413519ad2209d4 SHA-256: b25d313db2fc62a1652f94e6c86d4948b0ddafbbde11923de9afa7507c5a8b3e
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by a machine learning classifier as malicious and contains a large number of embedded URLs, indicating a potential link farm or redirection scheme. The presence of these numerous external links suggests an attempt to lead the user to malicious content. No scripts were extracted from this sample, limiting further analysis of its specific payload delivery mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9952

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/94e04e24e54e04e2/Wells---Westm-Aus-The-British-Library-General-Catalogue-of-Printed-Books-to-1975-348-by-Jim-Emmett.pdf
    • http://unieoooq.linkpc.net/94e04e24e44e14e4/T-C-E---Taran-Aus-The-British-Library-General-Catalogue-of-Printed-Books-to-1975-320-by-Jim-Emmett.pdf
    • http://unieoooq.linkpc.net/94e04e24e44e14e5/Tronn---Turge-Aus-The-British-Library-General-Catalogue-of-Printed-Books-to-1975-330-by-Jim-Emmett.pdf
    • http://unieoooq.linkpc.net/94e04e24e44e94e1/Smith---Socie-Aus-The-British-Library-General-Catalogue-of-Printed-Books-to-1975-306-by-Jim-Emmett.pdf
    • http://unieoooq.linkpc.net/94e04e24e44e94e4/Verno---View-Aus-The-British-Library-General-Catalogue-of-Printed-Books-to-1975-339-by-Jim-Emmett.pdf
    • http://unieoooq.linkpc.net/94e04e24e54e44e3/Scoti---Seage-Aus-The-British-Library-General-Catalogue-of-Printed-Books-to-1975-296-by-Jim-Emmett.pdf
    • http://unieoooq.linkpc.net/94e04e24e44e14e0/Taran---Taylo-Aus-The-British-Library-General-Catalogue-of-Printed-Books-to-1975-321-by-Jim-Emmett.pdf
    • http://unieoooq.linkpc.net/94e04e24e54e44e2/Schul---Scoti-Aus-The-British-Library-General-Catalogue-of-Printed-Books-to-1975-295-by-Jim-Emmett.pdf
    • http://unieoooq.linkpc.net/94e04e24e54e44e0/Staub---Steph-Aus-The-British-Library-General-Catalogue-of-Printed-Books-to-1975-312-by-Jim-Emmett.pdf
    • http://unieoooq.linkpc.net/14e04e64e34e74e84e4/A-Catalogue-of-the-Personal-Library-of-Stephen-Girard-1750-1831-by-William-F-Zeil.pdf
    • http://unieoooq.linkpc.net/64e54e74e14e54e0/Catalogue-of-Sumptuous-Velours-Brocades-and-Embroideries-Fine-Old-Tapestries-Antique-Spanish-and-Italian-Laces-Silver-Sanctuary-Lamps-Curious-Early-Printed-Textiles-and-a-Series-of-Remarkable-Needlework-Pictures-All-of-Which-Are-the-Productions-of-T-by-American-Art-Association.pdf
    • http://unieoooq.linkpc.net/14e04e44e94e54e04e2/The-Church-Organist-s-Library-Vol-2-General-Use-by-Wayne-Leupold.pdf
    • http://unieoooq.linkpc.net/34e34e64e44e44e7/Harry-Potter-A-History-of-Magic-by-British-Library.pdf
    • http://unieoooq.linkpc.net/64e24e74e94e14e9/Ancient-Buddhist-Scrolls-from-Gandhara-The-British-Library-Kharosthi-Fragments-by-Richard-Salomon.pdf
    • http://unieoooq.linkpc.net/14e04e24e44e74e64e2/Annotated-Catalogue-Raisonn-of-the-Books-by-Martin-Kippenberger-1977-1997-by-Uwe-Koch.pdf
    • http://unieoooq.linkpc.net/14e14e94e84e54e74e7/Olaf-Nicolai---Sammlers-Blick-A-Catalogue-A-Catalogue-by-Boris-Groys.pdf
    • http://unieoooq.linkpc.net/14e44e24e64e24e5/The-World-s-Best-Books-Taste-Culture-and-the-Modern-Library-by-Jay-Satterfield.pdf
    • http://unieoooq.linkpc.net/14e94e64e14e44e3/Books-Can-Be-Deceiving-Library-Lover-s-Mystery-1-by-Jenn-McKinlay.pdf
    • http://unieoooq.linkpc.net/34e74e54e84e84e8/A-Murder-for-the-Books-Blue-Ridge-Library-Mysteries-1-by-Victoria-Gilbert.pdf
    • http://unieoooq.linkpc.net/24e94e84e44e74e5/The-Card-Catalog-Books-Cards-and-Literary-Treasures-by-Library-of-Congress.pdf
    • http://unieoooq.linkpc.net/94e04e24e44e94e1/

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