Malicious PDF — malware analysis report

Static analysis result for SHA-256 c961c7ff89a5f4aa…

MALICIOUS

PDF

16.0 KB Created: 2019-05-02 22:42:55 +01:00 Authoring application: mPDF 5.7
MD5: acc9183379ec890231475fdf84e90dff SHA-1: 1cf39a127f726f1d29399bef817bdc138f45c251 SHA-256: c961c7ff89a5f4aaca5ece66632085cc29e5e235eea44a006507793d550402da
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic. While the specific URLs extracted are currently marked as benign, the sheer volume and structure suggest a malicious intent, likely for SEO poisoning or to distribute further malicious content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9898

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/9091092097/The-Geography-of-Lost-Things-by-Jessica-Brody.pdf
    • http://loaminoo.linkpc.net/3090098092097095/Jane-Brody-s-Good-Food-Book-Living-the-High-Carbohydrate-Way-by-Jane-E-Brody.pdf
    • http://loaminoo.linkpc.net/4095094095099097/Unremembered-Unremembered-1-by-Jessica-Brody.pdf
    • http://loaminoo.linkpc.net/3092093090097091/Unremembered-Unremembered-1-by-Jessica-Brody.pdf
    • http://loaminoo.linkpc.net/2098092094098095/A-Reaper-s-Tale---The-Undecided-by-Adam-Slade.pdf
    • http://loaminoo.linkpc.net/1098094098093092/My-Coyote-Ugly-Life-My-Life-1-by-Jessica-Spoon.pdf
    • http://loaminoo.linkpc.net/5097090097098098/Money-Habitudes-How-to-Be-Rich-in-Life-and-Love-by-Jessica-Pool.pdf
    • http://loaminoo.linkpc.net/8092091091091091/Life-Abundant-a-30-day-devotional-for-Latter-day-Saint-Women-by-Jessica-Coup-.pdf
    • http://loaminoo.linkpc.net/7095093096091/The-Secret-Life-of-a-Witch-Mystic-Willow-Bay-Witches-1-by-Jessica-Sorensen.pdf
    • http://loaminoo.linkpc.net/8097094097/Imperfect-Courage-Live-a-Life-of-Purpose-by-Leaving-Comfort-and-Going-Scared-by-Jessica-Honegger.pdf
    • http://loaminoo.linkpc.net/3095090098095091/Virtue-and-Vice-by-Kimberly-Brody.pdf
    • http://loaminoo.linkpc.net/1090090099099092/Brody-Circle-Eight-2-by-Emma-Lang.pdf
    • http://loaminoo.linkpc.net/2092090099091/Yukon-Audit-a-C-E-Brody-Novel-by-Ken-Baird.pdf
    • http://loaminoo.linkpc.net/1097097097093/The-Holden-Age-of-Hollywood-by-Phil-Brody.pdf
    • http://loaminoo.linkpc.net/5095096097091094/Shadows-of-the-Moon-Black-Wolf-Agency-2-by-Jessica-Musso-Jessica-Lupo-.pdf
    • http://loaminoo.linkpc.net/7097092099092/Jessica-Jessica-Trouble-Sweet-Valley-Kids-59-by-Francine-Pascal.pdf
    • http://loaminoo.linkpc.net/4098097099097/The-Wedding-of-Antanasia-Jessica-Packwood-and-Lucius-Valeriu-Vladescu-Jessica-1-5-by-Beth-Fantaskey.pdf
    • http://loaminoo.linkpc.net/8094092095099/Brody-s-Ghost-Volume-1-by-Mark-Crilley.pdf
    • http://loaminoo.linkpc.net/8094095095097/Brody-s-Ghost-Volume-2-by-Mark-Crilley.pdf
    • http://loaminoo.linkpc.net/1091092094094098098/Conversations-with-Tibor-by-Brody-Drew-McVittie.pdf
    • http://loaminoo.linkpc.net/8097094097/Imperfect-Courage-Live-a-Life-of-Purpose-by-L

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