Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4a07fe3e0a69254…

MALICIOUS

PDF

15.0 KB Created: 2019-05-03 05:37:36 +01:00 Authoring application: mPDF 5.7
MD5: c78b0c37ab1d6e758d174e363d7274fa SHA-1: 2e3e3c5c03bb03f74c4413ae614bdcbfaeff8553 SHA-256: e4a07fe3e0a69254718ef9c4880c290df0cad1ab889cd426851960fb51c7997b
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, identified as a link farm. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the sheer volume of links suggests an attempt to manipulate search engine results or redirect users to malicious content. The primary attack pattern involves leveraging a large number of numeric-slug SEO PDF links.

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.li
    • http://loaminoo.linkpc.net/1094091095091098/The-Golden-Transcendence-Golden-Age-3-by-John-C-Wright.pdf
    • http://loaminoo.linkpc.net/2098091096090097/Dreams-of-the-Golden-Age-Golden-Age-2-by-Carrie-Vaughn.pdf
    • http://loaminoo.linkpc.net/1099095091092099/Golden-Golden-1-by-Melinda-Michaels.pdf
    • http://loaminoo.linkpc.net/7094091094097093/The-Complete-Golden-Dawn-Cipher-Manuscript-Golden-Dawn-Studies-No-1-by-Darcy-Kuntz.pdf
    • http://loaminoo.linkpc.net/6094093096090097/The-Golden-Blade-by-John-Clou.pdf
    • http://loaminoo.linkpc.net/8095093096091091/Golden-Boys-4-1-Yoan-Golden-Boys-4-1-by-Fleur-Hana.pdf
    • http://loaminoo.linkpc.net/4099094094091093/The-Golden-Book-of-Buccaneers-by-John-Gilbert.pdf
    • http://loaminoo.linkpc.net/4098097094095098/Rumpole-and-the-Golden-Thread-by-John-Mortimer.pdf
    • http://loaminoo.linkpc.net/3093095090097099/Golden-Prey-Lucas-Davenport-27-by-John-Sandford.pdf
    • http://loaminoo.linkpc.net/3091096099097096/The-Golden-City-The-Golden-City-1-by-J-Kathleen-Cheney.pdf
    • http://loaminoo.linkpc.net/6097099093097/Golden-Shadows-Shadows-Golden-Under-the-Sun-by-Amitava-Mazumdar.pdf
    • http://loaminoo.linkpc.net/9091096093099099/The-Girl-With-The-Golden-Spurs-Golden-Spurs-1-by-Ann-Major.pdf
    • http://loaminoo.linkpc.net/2099092096094091/Five-Golden-Rules-Great-Theories-Of-20th-Century-Mathematics-And-Why-They-Matter-by-John-L-Casti.pdf
    • http://loaminoo.linkpc.net/4094095096094092/The-Golden-Moments-of-Paris-A-Guide-to-the-Paris-of-the-1920s-by-John-Baxter.pdf
    • http://loaminoo.linkpc.net/2096095098093092/The-Golden-Crown-Series-Golden-Crown-Series-1-3-by-Rue-Volley.pdf
    • http://loaminoo.linkpc.net/1090091091092090090/After-by-Marita-Golden.pdf
    • http://loaminoo.linkpc.net/3091095096094090/Snowblind-by-Christopher-Golden.pdf
    • http://loaminoo.linkpc.net/7092092098094090/Golden-Insatiable-2-by-The-Black.pdf
    • http://loaminoo.linkpc.net/4096091092096/Golden-Boy-by-Tara-Sullivan.pdf
    • http://loaminoo.linkpc.net/1093093093096097/A-Golden-Web-by-Barbara-Quick.pdf

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