Malicious PDF — malware analysis report

Static analysis result for SHA-256 8385898396454058…

MALICIOUS

PDF

17.3 KB Created: 2019-04-30 04:05:49 +01:00 Authoring application: mPDF 5.7
MD5: 12ae4ee829cde74ba21a6d66e623ca3a SHA-1: c47f1cd1f48f4c10ebe39a414d3c33082d919fe6 SHA-256: 8385898396454058fef43cac92ce3ccbbf4a9bc3c45daae9e416fab805f99b21
90 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 content. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample. The primary attack pattern involves directing users to a link farm hosted on the domain xiixmcuin.linkpc.net.

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://xiixmcuin.linkpc.net/1201200205203204202/Wicked-with-Bonus-Material-The-Life-and-Times-of-the-Wicked-Witch-of-the-West-Wicked-Years-1-by-Gregory-Maguire.pdf
    • http://xiixmcuin.linkpc.net/3201204200207200/Wicked-The-Life-and-Times-of-the-Wicked-Witch-of-the-West-Wicked-Years-1-by-Gregory-Maguire.pdf
    • http://xiixmcuin.linkpc.net/4201207205206209/The-Witch-s-Brew-A-Collection-of-Hilarious-Short-Stories-Starring-the-Wicked-Witch-of-the-West-by-Darrin-Mason.pdf
    • http://xiixmcuin.linkpc.net/2205201202202205/The-Wicked-Witch-of-the-West-Munchkin-Killer-by-Darrin-Mason.pdf
    • http://xiixmcuin.linkpc.net/1203205206207203/Hilda-the-Wicked-Witch-Hilda-the-Wicked-Witch-1-by-Paul-Kater.pdf
    • http://xiixmcuin.linkpc.net/3207207200204/Wicked-2-Legacy-amp-Spellbound-Wicked-3-4-by-Nancy-Holder.pdf
    • http://xiixmcuin.linkpc.net/2200206206205208/Wicked-to-Love-Wicked-Lovers-5-5-by-Shayla-Black.pdf
    • http://xiixmcuin.linkpc.net/2203204203/Wicked-Reunion-Wicked-White-2-by-Michelle-A-Valentine.pdf
    • http://xiixmcuin.linkpc.net/2200201203203202/Wicked-My-Love-Wicked-Little-Secrets-2-by-Susanna-Ives.pdf
    • http://xiixmcuin.linkpc.net/1207201201205206/Wicked-Desires-Wicked-Affairs-1-by-Eliza-Lloyd.pdf
    • http://xiixmcuin.linkpc.net/3209202205204206/Wicked-Revenge-A-Wicked-Angels-MC-1-by-Zoey-Derrick.pdf
    • http://xiixmcuin.linkpc.net/2200204203206208/Twice-As-Wicked-Wicked-Secrets-1-by-Elizabeth-Bright.pdf
    • http://xiixmcuin.linkpc.net/3207202202/Wicked-Beautiful-Wicked-Games-1-by-J-T-Geissinger.pdf
    • http://xiixmcuin.linkpc.net/1200203203205202204/Wicked-A-Wicked-Trilogy-1-by-Jennifer-L-Armentrout.pdf
    • http://xiixmcuin.linkpc.net/3209207201200204/Wicked-Hunger-SomeOne-Wicked-This-Way-Comes-1-by-DelSheree-Gladden.pdf
    • http://xiixmcuin.linkpc.net/5202200206205/Wicked-Series-Complete-Box-Set-Wicked-1-3-by-M-S-Parker.pdf
    • http://xiixmcuin.linkpc.net/2200202205203201/Wicked-Beautiful-Wicked-Games-1-by-J-T-Geissinger.pdf
    • http://xiixmcuin.linkpc.net/9205200201202/My-Wicked-Wicked-Ways-by-Errol-Flynn.pdf
    • http://xiixmcuin.linkpc.net/2205207204201206/Wicked-Bindings-Wicked-s-Way-2-by-Havan-Fellows.pdf
    • http://xiixmcuin.linkpc.net/3204201206204209/Wicked-Need-The-Wicked-Horse-3-by-Sawyer-Bennett.pdf
    • http://xiixmcuin.linkpc.net/3207207200204/Wicked-2-Legac

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