Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b382665c491dc42…

MALICIOUS

PDF

14.0 KB Created: 2019-05-02 05:06:27 +01:00 Authoring application: mPDF 5.7
MD5: 3fee7a3bc7808582ccd7e54c76108f24 SHA-1: 09722040e4b5daa9e9ba9809cd11a24df936ddb3 SHA-256: 2b382665c491dc425fa6941c733d678edbfe8b8aebab147dc0983523eb2d84df
60 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF was identified as malicious due to a heuristic firing for a PDF SEO link farm. It contains numerous embedded URLs pointing to book titles, suggesting a potential attempt to manipulate search engine results or distribute content via a large number of linked PDFs. No scripts were extracted from this sample. The primary IOCs are the embedded URLs.

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/1090091099097/Night-Broken-Mercy-Thompson-8-by-Patricia-Briggs.pdf
    • http://loaminoo.linkpc.net/7091090095091/Preying-For-Mercy-Mercy-Thompson-1-3-by-Patricia-Briggs.pdf
    • http://loaminoo.linkpc.net/2091093090099098/O-Diabo-do-Rio-Mercy-Thompson-6-by-Patricia-Briggs.pdf
    • http://loaminoo.linkpc.net/3090091099096093/Bone-Crossed-Mercy-Thompson-4-by-Patricia-Briggs.pdf
    • http://loaminoo.linkpc.net/2090095096099096/Storm-Cursed-Mercy-Thompson-11-by-Patricia-Briggs.pdf
    • http://loaminoo.linkpc.net/4094095099095092/Moon-Called-Mercy-Thompson-1-by-Patricia-Briggs.pdf
    • http://loaminoo.linkpc.net/5091099091/Silence-Fallen-Mercy-Thompson-10-by-Patricia-Briggs.pdf
    • http://loaminoo.linkpc.net/2097099095/Fire-Touched-Mercy-Thompson-9-by-Patricia-Briggs.pdf
    • http://loaminoo.linkpc.net/1099096090091099/Blood-Bound-Mercy-Thompson-2-by-Patricia-Briggs.pdf
    • http://loaminoo.linkpc.net/8098098092092/Frost-Burned-Mercy-Thompson-7-by-Patricia-Briggs.pdf
    • http://loaminoo.linkpc.net/4098095092093097/Moon-Called-Mercy-Thompson-1-by-Patricia-Briggs.pdf
    • http://loaminoo.linkpc.net/3098093098090/Moon-Called-Mercy-Thompson-1-by-Patricia-Briggs.pdf
    • http://loaminoo.linkpc.net/5096093096091091/Mercy-Thompson-Homecoming-Graphic-Novel-Issue-2-by-Patricia-Briggs.pdf
    • http://loaminoo.linkpc.net/5096093096092093/Mercy-Thompson-Homecoming-Graphic-Novel-Issue-3-by-Patricia-Briggs.pdf
    • http://loaminoo.linkpc.net/4091098096094095/Shifting-Shadows-Stories-from-the-World-of-Mercy-Thompson-by-Patricia-Briggs.pdf
    • http://loaminoo.linkpc.net/2094095093099093/Patricia-Briggs-Mercy-Thompson-Moon-Called-Volume-1-by-David-Lawrence.pdf
    • http://loaminoo.linkpc.net/3095090097090092/Silver-Borne-Mercedes-Thompson-5-by-Patricia-Briggs.pdf
    • http://loaminoo.linkpc.net/1099096093093095/Shifter-s-Wolf-by-Patricia-Briggs.pdf
    • http://loaminoo.linkpc.net/3090090099097/Fair-Game-by-Patricia-Briggs.pdf
    • http://loaminoo.linkpc.net/2096098090097091/When-Demons-Walk-Sianim-3-by-Patricia-Briggs.pdf
    • http://loaminoo.linkpc.net/5096093096091091/Mercy-Thompson-Homecoming-Graph

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