Malicious PDF — malware analysis report

Static analysis result for SHA-256 aef1b857ee1092fb…

MALICIOUS

PDF

13.8 KB Created: 2019-04-30 04:49:40 +01:00 Authoring application: mPDF 5.7
MD5: 5ba5bea6d0c96aed9daddcea7136deab SHA-1: 299a23274c27cbf40065616255ff6a5bc1d150ca SHA-256: aef1b857ee1092fb7b582ccf46d57745b20db1529f4bfd1015cb290393a6cc7f
60 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to a critical heuristic firing for a PDF SEO link farm. It contains numerous embedded links, with the primary host being 'loaminoo.linkpc.net'. While the document body is unreadable, the presence of a link farm suggests an attempt to manipulate search engine results or distribute potentially harmful content through these links. 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/1091092090096099095/Willa-Cather-Novels-and-Stories-1905-1918-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/1091092090097097099/Willa-Cather-in-Person-Interviews-Speeches-and-Letters-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/1091092090097097091/Willa-Cather-in-Europe-Her-Own-Story-of-the-First-Journey-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/9092098097098098/The-Collected-Works-of-Willa-Cather-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/1091092090096099093/Willa-Cather-s-Southern-Connections-Willa-Cather-s-Southern-Connections-New-Essays-on-Cather-and-the-South-New-Essays-on-Cather-and-the-South-by-Ann-Romines.pdf
    • http://loaminoo.linkpc.net/1091092090097091097/The-Best-of-Willa-Cather-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/7094094094097097/My-Antonia-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/4098099090090093/My-Antonia-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/4098099095098099/O-Pioneers-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/1091092090096098094/The-Old-Beauty-and-others-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/2096094090097099/My-Antonia-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/4091091092099092/My-ntonia-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/4096097098090099/O-Pioneers-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/2096095096090090/O-Pioneers-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/4099092093091094/A-Lost-Lady-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/4092090094091094/Death-Comes-for-the-Archbishop-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/1091092090097091099/The-Burglar-s-Christmas-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/9092098098099092/Neighbour-Rosicky-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/4098094092094/A-Lost-Lady-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/1091092090096094097/Willa-Cather-by-Philip-L-Gerber.pdf

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