Malicious PDF — malware analysis report

Static analysis result for SHA-256 f40f42af54fcc361…

MALICIOUS

PDF

22.1 KB Created: 2019-05-07 05:17:58 +01:00 Authoring application: mPDF 5.7
MD5: 9aef48ef5f8b928978285342d2d5b5d0 SHA-1: 653460459b357360464c8ec9db756e7e3ea7cc92 SHA-256: f40f42af54fcc361830bafdaa3aeca9f8536629a31dbeaceb047dfcad193c58d
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF was flagged by a critical heuristic for containing a large number of external links, suggesting a link farm or SEO manipulation tactic. While most extracted URLs were labeled as benign, the sheer volume and the heuristic firing indicate a suspicious pattern. No scripts were extracted from this sample, and the document body contained mostly garbled data with some embedded URLs. The primary attack pattern appears to be the distribution of numerous links, potentially leading to malicious sites or content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9919

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://seasasac.lflinkup.com/5da6da8da4da9/North-To-The-Night-A-Spiritual-Odyssey-In-The-Arctic-by-Alvah-Simon.pdf
    • http://seasasac.lflinkup.com/1da6da7da1da6da6/By-Truck-to-the-North-My-Arctic-Adventure-by-Andy-Turnbull.pdf
    • http://seasasac.lflinkup.com/1da4da0da0da0da0/Arctic-Adventure-My-Life-in-the-Frozen-North-by-Peter-Freuchen.pdf
    • http://seasasac.lflinkup.com/1da1da2da6da9da4/The-Magnetic-North-Notes-From-The-Arctic-Circle-by-Sara-Wheeler.pdf
    • http://seasasac.lflinkup.com/7da7da8da9da4da6/Arctic-Mirrors-Russia-and-the-Small-Peoples-of-the-North-by-Yuri-Slezkine.pdf
    • http://seasasac.lflinkup.com/6da9da7da1da3da6/Rough-Trip-A-Spiritual-Odyssey-PART-2-by-A-Antares.pdf
    • http://seasasac.lflinkup.com/6da9da6da9da1da3/Rough-Trip-A-Spiritual-Odyssey-Part-1-by-A-Antares.pdf
    • http://seasasac.lflinkup.com/6da9da7da0da6da4/Rough-Trip-A-Spiritual-Odyssey-PART-3-by-A-Antares.pdf
    • http://seasasac.lflinkup.com/4da7da5da6da2da8/Flying-North-South-East-and-West-Arctic-to-the-Sahara-by-Terry-Reece.pdf
    • http://seasasac.lflinkup.com/1da1da7da0da6da2da5/Antonovs-Over-The-Arctic-Flying-To-The-North-Pole-In-Russian-Biplanes-by-Robert-Mads-Anderson.pdf
    • http://seasasac.lflinkup.com/4da4da6da4da0da2/North-Star-of-Herschel-Island---The-Last-Canadian-Arctic-Fur-Trading-Ship-by-R-Bruce-Macdonald.pdf
    • http://seasasac.lflinkup.com/1da1da9da6da2da5da3/A-Spiritual-Odyssey-To-Be-with-God-12000-BC---2012-AD-Despite-Limitations-of-the-Brain-by-J-Delgado.pdf
    • http://seasasac.lflinkup.com/9da1da2da8da7/The-Arctic-Grail-The-Quest-for-the-Northwest-Passage-and-the-North-Pole-1818-1909-by-Pierre-Berton.pdf
    • http://seasasac.lflinkup.com/1da8da7da5da3/Odyssey-to-the-North-by-Mario-Bencastro.pdf
    • http://seasasac.lflinkup.com/4da2da1da9da4da2/Jeff-A-Sexually-Realized-Spiritual-Odyssey-of-Stepping-Into-Love-by-Lynette-Louise.pdf
    • http://seasasac.lflinkup.com/7da7da9da2da1/The-Unlikely-Voyage-of-Jack-de-Crow-A-Mirror-Odyssey-from-North-Wales-to-the-Black-Sea-by-A-J-Mackinnon.pdf
    • http://seasasac.lflinkup.com/4da5da9da9da9da5/Escape-from-Camp-14-One-Man-s-Remarkable-Odyssey-from-North-Korea-to-Freedom-in-the-West-by-Blaine-Harden.pdf
    • http://seasasac.lflinkup.com/2da6da1da2da3da5/Rediscovering-Catholicism-Journeying-Toward-Our-Spiritual-North-Star-by-Matthew-Kelly.pdf
    • http://seasasac.lflinkup.com/3da2da0da1da1da6/Northern-Tales-Stories-from-the-Native-Peoples-of-the-Arctic-and-Sub-Arctic-Regions-by-Howard-Norman.pdf
    • http://seasasac.lflinkup.com/3da3da0da8da9da2/Arctic-Restitution-Arctic-Absolution-2-by-Lynn-Kelling.pdf
    • http://seasasac.lflinkup.com/1da1da7d