Malicious PDF — malware analysis report

Static analysis result for SHA-256 38ded433815c5b1f…

MALICIOUS

PDF

17.5 KB Created: 2019-05-02 01:12:03 +01:00 Authoring application: mPDF 5.7
MD5: 51c2a7b054799c8be89b86405ccef2e6 SHA-1: 0800f747171459965fc4893f31de0f324f5bc3bf SHA-256: 38ded433815c5b1f495c3df9515f477a6bce3284c550d870211afb9d45ae6a3b
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by a machine learning classifier as malicious and contains a large number of embedded links, characteristic of a link farm or SEO poisoning attack. While the document body is unreadable, the presence of numerous links to external PDF files suggests an attempt to manipulate search results or distribute further content. The primary technique observed is the use of embedded links within the PDF structure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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/7099093096090/The-Amulet-of-Samarkand-The-Graphic-Novel-by-Jonathan-Stroud.pdf
    • http://loaminoo.linkpc.net/1098092095098091/The-Amulet-of-Samarkand-Bartimaeus-1-by-Jonathan-Stroud.pdf
    • http://loaminoo.linkpc.net/3092097095094/The-Amulet-of-Samarkand-Bartimaeus-1-by-Jonathan-Stroud.pdf
    • http://loaminoo.linkpc.net/4090091093090093/The-Amulet-of-Samarkand-Bartimaeus-1-by-Jonathan-Stroud.pdf
    • http://loaminoo.linkpc.net/4097095092095098/The-Amulet-of-Samarkand-Bartimaeus-Trilogy-1-by-Jonathan-Stroud.pdf
    • http://loaminoo.linkpc.net/3091092096099/The-Screaming-Staircase-by-Jonathan-Stroud.pdf
    • http://loaminoo.linkpc.net/1097097099096099/Buried-Fire-by-Jonathan-Stroud.pdf
    • http://loaminoo.linkpc.net/3093094093093/The-Golem-s-Eye-Bartimaeus-2-by-Jonathan-Stroud.pdf
    • http://loaminoo.linkpc.net/2098093091091098/The-Golem-s-Eye-Bartimaeus-2-by-Jonathan-Stroud.pdf
    • http://loaminoo.linkpc.net/2098093094093091/Ptolemy-s-Gate-Bartimaeus-3-by-Jonathan-Stroud.pdf
    • http://loaminoo.linkpc.net/6095091093/The-Empty-Grave-Lockwood-amp-Co-5-by-Jonathan-Stroud.pdf
    • http://loaminoo.linkpc.net/5092098095090/The-Empty-Grave-Lockwood-amp-Co-5-by-Jonathan-Stroud.pdf
    • http://loaminoo.linkpc.net/4091097099096092/Ptolemy-s-Gate-Bartimaeus-Trilogy-3-by-Jonathan-Stroud.pdf
    • http://loaminoo.linkpc.net/8098091097098095/Articles-on-Bartimaeus-Trilogy-Including-The-Amulet-of-Samarkand-the-Golem-s-Eye-Ptolemy-s-Gate-Magic-in-the-Bartimaeus-Trilogy-Characters-of-the-Bartimaeus-Trilogy-by-Hephaestus-Books.pdf
    • http://loaminoo.linkpc.net/3095098092099/The-Bartimaeus-Trilogy-Boxed-Set-Bartimaeus-1-3-by-Jonathan-Stroud.pdf
    • http://loaminoo.linkpc.net/2099094090094096/Hawkmoon-The-Mad-God-s-Amulet-The-Mad-God-s-Amulet-by-Michael-Moorcock.pdf
    • http://loaminoo.linkpc.net/4094093097099096/The-Gettysburg-Address-A-Graphic-Adaptation-by-Jonathan-Hennessey.pdf
    • http://loaminoo.linkpc.net/9090095097095/Trinity-A-Graphic-History-of-the-First-Atomic-Bomb-by-Jonathan-Fetter-Vorm.pdf
    • http://loaminoo.linkpc.net/4092091093093095/The-Lost-Hero-The-Graphic-Novel-The-Heroes-of-Olympus-The-Graphic-Novels-1-by-Robert-Venditti.pdf
    • http://loaminoo.linkpc.net/3092091095096093/The-Throne-of-Fire-The-Graphic-Novel-The-Kane-Chronicles-The-Graphic-Novels-2-by-Orpheus-Collar.pdf

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