Malicious PDF — malware analysis report

Static analysis result for SHA-256 34231e1dcd1b2156…

MALICIOUS

PDF

14.6 KB Created: 2019-04-30 04:18:57 +01:00 Authoring application: mPDF 5.7
MD5: a66049d4d249b711945aa5ffe74b55b9 SHA-1: ee9b30b4fc5048b35001380d7e989adb79fd56cc SHA-256: 34231e1dcd1b2156cb9b405ddb1c611938b54171854ae99f652309043bfe7e3f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic. While the document body is heavily obfuscated, the presence of numerous external links suggests an attempt to manipulate search engine results or redirect users to potentially malicious sites. The ML_NYX_PDF_MALICIOUS heuristic further supports the malicious nature of the file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9891

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://loaminoo.linkpc.net/1091096092097091093/Skinner-s-Ordeal-Bob-Skinner-5-by-Quintin-Jardine.pdf
    • http://loaminoo.linkpc.net/1091096092097090099/Skinner-s-Ghosts-Bob-Skinner-7-by-Quintin-Jardine.pdf
    • http://loaminoo.linkpc.net/1091096092096095099/Skinner-s-Trail-Bob-Skinner-3-by-Quintin-Jardine.pdf
    • http://loaminoo.linkpc.net/1091096092096096091/Skinner-s-Round-Bob-Skinner-4-by-Quintin-Jardine.pdf
    • http://loaminoo.linkpc.net/2096090094099098/The-Librarian-s-Vampire-Assistant-2-The-Librarian-s-Vampire-Assistant-2-by-Mimi-Jean-Pamfiloff.pdf
    • http://loaminoo.linkpc.net/2095091094096/The-Assistant-Self-by-F-L-Wallace.pdf
    • http://loaminoo.linkpc.net/7096095092093/The-Assistant-by-Robert-Walser.pdf
    • http://loaminoo.linkpc.net/1095090095097099/The-Detective-s-Assistant-by-Kate-Hannigan.pdf
    • http://loaminoo.linkpc.net/1097098099090097/Lovely-Assistant-by-Geoph-Essex.pdf
    • http://loaminoo.linkpc.net/3093090098098092/His-Personal-Assistant-Men-of-New-York-1-by-L-J-Harris.pdf
    • http://loaminoo.linkpc.net/3094094095099094/The-Deathsniffer-s-Assistant-by-Kate-McIntyre.pdf
    • http://loaminoo.linkpc.net/3097094099090092/Walden-Two-by-B-F-Skinner.pdf
    • http://loaminoo.linkpc.net/4091090091093/Walden-Two-by-B-F-Skinner.pdf
    • http://loaminoo.linkpc.net/3097095098095097/Upheaval-Ogre-s-Assistant-2-by-Deborah-J-Martin.pdf
    • http://loaminoo.linkpc.net/9092094097091096/Her-Personal-Assistant-Dominating-PA-1-by-Lexy-Timms.pdf
    • http://loaminoo.linkpc.net/1092090093092098/The-Catcher-in-the-Eye-America-s-Next-Top-Assistant-1-by-Lotta-Smith.pdf
    • http://loaminoo.linkpc.net/1090092096097093092/Executive-Assistant-Iris-Vol-3-by-David-Wohl.pdf
    • http://loaminoo.linkpc.net/2098098093096096/The-Hiring-The-Millionaire-s-Assistant-1-by-Helen-Cooper.pdf
    • http://loaminoo.linkpc.net/3099097097097097/Dark-Awakened-The-Devil-s-Assistant-2-by-H-D-Smith.pdf
    • http://loaminoo.linkpc.net/3099098094099091/Dark-Awakened-The-Devil-s-Assistant-2-by-H-D-Smith.pdf

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