Malicious PDF — malware analysis report

Static analysis result for SHA-256 b56dff1062154c63…

MALICIOUS

PDF

17.6 KB Created: 2019-04-29 23:26:28 +01:00 Authoring application: mPDF 5.7
MD5: 9f24730a83ca17f98ff6c4f3839a4141 SHA-1: 1bf09237ee397e458b68955ef2ad6372cf47ec85 SHA-256: b56dff1062154c6345baaf28795f873c9bf19e706fa901ec06dd33bb74adabfc
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO poisoning or to distribute malicious content. The ML classifier strongly indicated maliciousness. While the document body is heavily corrupted, the presence of a link farm suggests a deceptive intent, likely to drive traffic to malicious sites or to host further malicious content.

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/9096097094096091/Death-Will-Extend-Your-Vacation-Bruce-Kohler-3-by-Elizabeth-Zelvin.pdf
    • http://loaminoo.linkpc.net/9096097095090093/Death-Will-Save-Your-Life-Bruce-Kohler-4-by-Elizabeth-Zelvin.pdf
    • http://loaminoo.linkpc.net/9096097095093092/Death-Will-Help-You-Leave-Him-A-Humorous-New-York-Mystery-Bruce-Kohler-2-by-Elizabeth-Zelvin.pdf
    • http://loaminoo.linkpc.net/1095091097096099/Where-Does-Santa-Go-on-Vacation-after-Christmas-by-Elizabeth-Rooks.pdf
    • http://loaminoo.linkpc.net/2098099096093094/Death-s-Excellent-Vacation-by-Charlaine-Harris.pdf
    • http://loaminoo.linkpc.net/1091099090092095095/408-Vacation-amp-Second-Home-Plans-Everything-You-Need-to-Build-Your-Vacation-Hideaway-by-Creative-Homeowner.pdf
    • http://loaminoo.linkpc.net/8097092090095/Death-s-Excellent-Vacation-Sookie-Stackhouse-9-5-Night-Huntress-4-5-Sept-Dragons-7-5-by-Charlaine-Harris.pdf
    • http://loaminoo.linkpc.net/1097093097096098/Vacation-with-a-Vampire-Stay-Vivi-and-the-Vampire-Island-Vacation-by-Michele-Hauf.pdf
    • http://loaminoo.linkpc.net/7093096092090/Get-Happy-7-Secrets-to-Creating-the-Life-You-Want-by-Elizabeth-C-Bruce.pdf
    • http://loaminoo.linkpc.net/1094093093090093/The-Color-of-Death-Sir-John-Fielding-7-by-Bruce-Alexander.pdf
    • http://loaminoo.linkpc.net/3094099098098093/Death-of-a-Colonial-Sir-John-Fielding-6-by-Bruce-Alexander.pdf
    • http://loaminoo.linkpc.net/7096096094098095/Death-Unexpected-The-Violent-Deaths-of-Fayette-by-Bruce-L-Jordan.pdf
    • http://loaminoo.linkpc.net/3091094098096096/The-Color-of-Death-by-Elizabeth-Lowell.pdf
    • http://loaminoo.linkpc.net/1099094099099091/Death-Becomes-Me-Call-Me-Grim-2-by-Elizabeth-Holloway.pdf
    • http://loaminoo.linkpc.net/7092092092090/Date-with-Death-Charmed-14-by-Elizabeth-Lenhard.pdf
    • http://loaminoo.linkpc.net/4098098090095096/Death-of-a-Duchess-Sigismondo-1-by-Elizabeth-Eyre.pdf
    • http://loaminoo.linkpc.net/3096091097096094/Death-of-an-Old-Girl-Pollard-amp-Toye-1-by-Elizabeth-Lemarchand.pdf
    • http://loaminoo.linkpc.net/1091095093097091091/Death-by-Scones-Danger-Cove-3-by-Elizabeth-Ashby.pdf
    • http://loaminoo.linkpc.net/9090092099095099/Tempting-Death-The-Grim-Trilogy-1-by-Elizabeth-Holloway.pdf
    • http://loaminoo.linkpc.net/3091095094097098/Death-Echo-St-Kilda-Consulting-5-by-Elizabeth-Lowell.pdf

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