Malicious PDF — malware analysis report

Static analysis result for SHA-256 8caac8841bb240e7…

MALICIOUS

PDF

20.3 KB Created: 2019-05-02 00:52:17 +01:00 Authoring application: mPDF 5.7
MD5: 5b0b71c1879796da75c7c87e7be0794a SHA-1: 0e07885b48940d96a88065f1ec7100dff3c206f7 SHA-256: 8caac8841bb240e7ec52b8dc02586a1e95b26581308c9318cca0f6680dc5c30e
60 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic. These URLs point to various PDF documents hosted on loaminoo.linkpc.net. While the individual URLs are currently marked as benign, the sheer volume and the nature of the heuristic suggest a potential SEO manipulation or link farm tactic, which can be a precursor to malicious activity. No scripts were extracted from this sample.

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/4093097091094091/Eleven-Town-by-John-Paul-Cleary.pdf
    • http://loaminoo.linkpc.net/5091095090095095/Concord-Virginia-A-Southern-Town-in-Eleven-Stories-by-Peter-Neofotis.pdf
    • http://loaminoo.linkpc.net/8094097092099092/Amarillo-The-Story-of-a-Western-Town-by-Paul-H-Carlson.pdf
    • http://loaminoo.linkpc.net/1093095090091099/The-Worst-Boy-in-Town-by-John-Habberton.pdf
    • http://loaminoo.linkpc.net/8094099092093092/Small-Town-Punk-by-John-Sheppard.pdf
    • http://loaminoo.linkpc.net/5090090099093097/Caste-and-Class-in-a-Southern-Town-by-John-Dollard.pdf
    • http://loaminoo.linkpc.net/3097092093090090/The-Streets-of-Town-Suzie-Mountford-2-by-John-Gardner.pdf
    • http://loaminoo.linkpc.net/8099090093092091/Chemistry-and-Chemical-Reactivity-John-C-Kotz-Paul-M-Treichel-John-R-Townsend-by-John-C-Kotz.pdf
    • http://loaminoo.linkpc.net/6095096093094099/Annual-Report-of-the-Town-Officers-of-the-Town-of-Barnstead-Comprising-Those-of-the-Selectmen-Treasurer-Collector-Road-Agents-School-Board-Town-Clerk-Trustees-of-the-Public-Library-Trustees-of-Trust-Funds-and-Fire-Warden-For-the-Year-Ending-Janua-by-Barnstead-New-Hampshire.pdf
    • http://loaminoo.linkpc.net/3098098098093/The-Innocent-Man-Murder-and-Injustice-in-a-Small-Town-by-John-Grisham.pdf
    • http://loaminoo.linkpc.net/4094093091098092/The-Eleven-Hour-Fall-The-Eleven-Hour-Fall-1-by-Robert-Appleton.pdf
    • http://loaminoo.linkpc.net/7091097097097096/The-Holy-War-Made-by-Shaddai-Upon-Diabolus-for-the-Regaining-of-the-Metropolis-of-the-World-Or-the-Losing-and-Taking-Again-of-the-Town-of-Mansoul-1869-by-John-Bunyan.pdf
    • http://loaminoo.linkpc.net/1091096095092094094/Small-Town-Vbs-Three-Vbs-Programs-with-Small-Town-Heart-and-Big-Time-Ideas-by-Gennifer-Anderson.pdf
    • http://loaminoo.linkpc.net/3099093090099092/Letter-to-Artists-by-John-Paul-II.pdf
    • http://loaminoo.linkpc.net/7099090097092/Animal-Behavior-by-John-Paul-Scott.pdf
    • http://loaminoo.linkpc.net/7090090092091092/Regaining-What-You-ve-Lost-by-John-Paul-Jackson.pdf
    • http://loaminoo.linkpc.net/5096090093097093/Jack-Rivers-and-Me-by-Paul-John-Radley.pdf
    • http://loaminoo.linkpc.net/4093092098097095/The-Templar-Agenda-by-John-Paul-Davis.pdf
    • http://loaminoo.linkpc.net/3099096099097092/Monkey-Love-by-John-Paul-Allen.pdf
    • http://loaminoo.linkpc.net/1091098095094097095/The-Templar-Agenda-by-John-Paul-Davis.pdf
    • http://loaminoo.linkpc.net/6095096093094099/Annual-Report-of-the-Town-Officers-of-t

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