Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d441c9446a2f400…

MALICIOUS

PDF

20.5 KB Created: 2019-05-01 19:26:07 +01:00 Authoring application: mPDF 5.7
MD5: 3fcf9638856bd4c9694ada48b0a132bc SHA-1: dad6a5f95150b70e0b77b169e5302a033198d7f9 SHA-256: 5d441c9446a2f400de2d40d7fed192be4144982cce7492f2cff7c5367955b24f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO poisoning or to distribute malicious payloads. The ML classifier also flagged this document as malicious. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9904

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/7093095095095099/The-Voiage-and-Travaile-of-Sir-John-Maundeville-Kt-Which-Treateth-of-the-Way-to-Hierusalem-And-of-Marvayles-of-Inde-with-Other-Ilands-and-Countrye-by-John-Mandeville.pdf
    • http://loaminoo.linkpc.net/3099096092090094/The-Travels-of-Sir-John-Mandeville-by-John-Mandeville.pdf
    • http://loaminoo.linkpc.net/6094090096097/The-Riddle-and-the-Knight-In-Search-of-Sir-John-Mandeville-the-World-s-Greatest-Traveler-by-Giles-Milton.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/3096098092096098/Articles-on-Outlander-Including-Diana-Gabaldon-Lord-John-and-the-Private-Matter-Lord-John-and-the-Brotherhood-of-the-Blade-Lord-John-and-the-Scot-by-Hephaestus-Books.pdf
    • http://loaminoo.linkpc.net/5097091098092091/Forty-Dreams-Of-St-John-Bosco-From-St-John-Bosco-s-Biographical-Memoirs-by-John-Bosco.pdf
    • http://loaminoo.linkpc.net/6092099098095092/Seeking-John-Campbell-Finding-pioneers-and-patriots-in-the-pampas-by-John-Daffurn.pdf
    • http://loaminoo.linkpc.net/1091091092094090094/Tod-im-Kilt-John-Mackenzies-zweiter-Fall-John-Mackenzie-2-by-Emma-Goodwyn.pdf
    • http://loaminoo.linkpc.net/1097091098095/Goombata-The-Improbable-Rise-and-Fall-of-John-Gotti-and-His-Gang-by-John-Cummings.pdf
    • http://loaminoo.linkpc.net/9091095093095/Before-John-Was-a-Jazz-Giant-A-Song-of-John-Coltrane-by-Carole-Boston-Weatherford.pdf
    • http://loaminoo.linkpc.net/4092096090094097/All-the-Great-Prizes-The-Life-of-John-Hay-from-Lincoln-to-Roosevelt-by-John-Taliaferro.pdf
    • http://loaminoo.linkpc.net/3097090095095097/Unfit-For-Command-Swift-Boat-Veterans-Speak-Out-Against-John-Kerry-by-John-E-O-39-Neill.pdf
    • http://loaminoo.linkpc.net/6092090095094/John-Patrick-Norman-McHennessy-The-Boy-Who-Was-Always-Late-by-John-Burningham.pdf
    • http://loaminoo.linkpc.net/4099097090094098/The-Songs-of-John-Lennon-The-Beatles-Years-by-John-Stevens.pdf
    • http://loaminoo.linkpc.net/1091090095098092091/A-Breach-of-Trust-DCI-John-Blizzard-5-by-John-Dean.pdf
    • http://loaminoo.linkpc.net/6097094090092095/John-Wilkes-The-Lives-of-a-Libertine-by-John-Sainsbury.pdf
    • http://loaminoo.linkpc.net/7099098093091091/The-39-Steps---Greenmantle---Prester-John-by-John-Buchan.pdf
    • http://loaminoo.linkpc.net/6090096096090/Nichijo-The-Testimony-of-John-Provoo-by-John-Oliver.pdf
    • http://loaminoo.linkpc.net/1098090092091/Genuine-Value-The-John-Deere-Journey-by-John-J-Gerstner.pdf
    • http://loaminoo.linkpc.net/9093096090099097/John-Zorn-Tradition-and-Transgression-by-John-Brackett.pdf