Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bd6bf70db20cdd1…

MALICIOUS

PDF

14.7 KB Created: 2019-04-30 17:53:25 +01:00 Authoring application: mPDF 5.7
MD5: ef64f4e16c007d20d40a4c345a64e2b7 SHA-1: 6969764f8a84adce0d5ef2ccfdf979fbe66bf337 SHA-256: 5bd6bf70db20cdd1be7d5d6d088480904f69795af182e6bb01830d0c86957664
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs that appear to be part of a link farm, likely for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted, but the presence of numerous external links suggests a potential for further malicious activity or redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9798

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/4094095091096098/Sword-of-the-Highlands-Highlands-2-by-Veronica-Wolff.pdf
    • http://loaminoo.linkpc.net/1090098093096095/Master-of-the-Highlands-Highlands-1-by-Veronica-Wolff.pdf
    • http://loaminoo.linkpc.net/3099099090098098/Devil-of-the-Highlands-Devil-of-the-Highlands-1-by-Lynsay-Sands.pdf
    • http://loaminoo.linkpc.net/2094092099097093/Wee-Sir-Gibbie-of-the-Highlands-by-George-MacDonald.pdf
    • http://loaminoo.linkpc.net/2090094095091092/The-Forbidden-Highlands-by-Kathryn-Le-Veque.pdf
    • http://loaminoo.linkpc.net/1091095097092095090/Verlockung-der-Highlands-by-Diana-Cosby.pdf
    • http://loaminoo.linkpc.net/1091099093097096092/Entf-hrung-in-den-Highlands-by-Karen-Hawkins.pdf
    • http://loaminoo.linkpc.net/2098098091091092/Handicrafts-of-the-Southern-Highlands-by-Allen-H-Eaton.pdf
    • http://loaminoo.linkpc.net/1091098094091095098/Gl-hende-Herzen-in-den-Highlands-by-Carmen-Caine.pdf
    • http://loaminoo.linkpc.net/2097099097094099/Master-of-the-Highlands-MacLean-2-by-Sue-Ellen-Welfonder.pdf
    • http://loaminoo.linkpc.net/2095095093096/The-Pride-of-Lions-Highlands-1-by-Marsha-Canham.pdf
    • http://loaminoo.linkpc.net/1092099090095/The-Secret-Highlands-Lairds-1-by-Julie-Garwood.pdf
    • http://loaminoo.linkpc.net/3090092091090093/The-Secret-Highlands-Lairds-1-by-Julie-Garwood.pdf
    • http://loaminoo.linkpc.net/5090093097091091/Plaid-to-the-Bone-Spirit-of-the-Highlands-0-5-by-Mia-Marlowe.pdf
    • http://loaminoo.linkpc.net/4099095091097/Canar-A-Year-in-the-Highlands-of-Ecuador-by-Judy-Blankenship.pdf
    • http://loaminoo.linkpc.net/4093099093092094/Seven-Moons-Back-to-the-Highlands-MacKay-1-by-Deborah-R-Stigall.pdf
    • http://loaminoo.linkpc.net/2095092091095/X-Marks-the-Scot-Bad-Boys-of-the-Highlands-2-by-Victoria-Roberts.pdf
    • http://loaminoo.linkpc.net/2092097094091095/Here-Comes-The-Rainne-Again-Scottish-Highlands-6-by-Janet-Elizabeth-Henderson.pdf
    • http://loaminoo.linkpc.net/1097094091097098/Escape-To-The-Highlands-MacKinnon-Clan-2-by-April-Holthaus.pdf
    • http://loaminoo.linkpc.net/9096095090097096/Verzauberte-Herzen-Herz-in-den-Highlands-3-by-Teresa-Medeiros.pdf

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