Malicious PDF — malware analysis report

Static analysis result for SHA-256 361af5ce477af7a0…

MALICIOUS

PDF

18.3 KB Created: 2019-04-30 03:56:33 +01:00 Authoring application: mPDF 5.7
MD5: 06766ff95c230f8f739b83318277bbee SHA-1: 82fb07f310fb908a2abec9e2fcdcb030c35c392c SHA-256: 361af5ce477af7a09767c340f7c1e7a2d222ef87f396d97607e540f0c1e35a8f
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a large number of embedded URLs pointing to academic-sounding documents hosted on the dynamic DNS domain 'xiixmcuin.linkpc.net'. This pattern is indicative of SEO poisoning or a distribution mechanism for malicious content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the exact payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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/3205200203204201/A-Critique-of-Postcolonial-Reason-Toward-a-History-of-the-Vanishing-Present-by-Gayatri-Chakravorty-Spivak.pdf
    • http://xiixmcuin.linkpc.net/5203201203205/An-Aesthetic-Education-in-the-Era-of-Globalization-by-Gayatri-Chakravorty-Spivak.pdf
    • http://xiixmcuin.linkpc.net/1200201207207200203/Archaeology-and-the-Postcolonial-Critique-by-Matthew-Liebmann.pdf
    • http://xiixmcuin.linkpc.net/4202207200209208/Critique-Of-Political-Reason-by-R-gis-Debray.pdf
    • http://xiixmcuin.linkpc.net/7208205205200200/The-Critique-of-Pure-Reason-by-Immanuel-Kant.pdf
    • http://xiixmcuin.linkpc.net/8200207204204204/Critique-of-Pure-Reason-by-Immanuel-Kant.pdf
    • http://xiixmcuin.linkpc.net/8205203202200200/The-Critique-of-Pure-Reason-by-Immanuel-Kant.pdf
    • http://xiixmcuin.linkpc.net/7206209203205/Critique-of-Cynical-Reason-by-Peter-Sloterdijk.pdf
    • http://xiixmcuin.linkpc.net/1201203208204200205/The-Critique-of-Pure-Reason-by-Immanuel-Kant.pdf
    • http://xiixmcuin.linkpc.net/8206206200205205/Critique-of-Pure-Reason-by-Immanuel-Kant.pdf
    • http://xiixmcuin.linkpc.net/3204203209209/Critique-of-Pure-Reason-by-Immanuel-Kant.pdf
    • http://xiixmcuin.linkpc.net/9202204206206207/Foucault-s-Futures-A-Critique-of-Reproductive-Reason-by-Penelope-Deutscher.pdf
    • http://xiixmcuin.linkpc.net/9205207208208206/History-s-Peru-The-Poetics-of-Colonial-and-Postcolonial-Historiography-by-Mark-Thurner.pdf
    • http://xiixmcuin.linkpc.net/3209206200208209/The-Dream-of-Reason-A-History-of-Philosophy-from-the-Greeks-to-the-Renaissance-by-Anthony-Gottlieb.pdf
    • http://xiixmcuin.linkpc.net/6205202203201202/A-History-of-Money-From-Ancient-Times-to-the-Present-Day-by-Glyn-Davies.pdf
    • http://xiixmcuin.linkpc.net/1206200200204200/God-s-Playground-A-History-of-Poland-Vol-2-1795-to-the-Present-by-Norman-Davies.pdf
    • http://xiixmcuin.linkpc.net/9203201202203202/Split-Second-by-A-B-Chakravorty.pdf
    • http://xiixmcuin.linkpc.net/4209205207201203/Vanishing-Cornwall-The-Spirit-and-History-of-Cornwall-by-Daphne-du-Maurier.pdf
    • http://xiixmcuin.linkpc.net/1201207201206204204/Mad-Bad-And-Sad-A-History-of-Women-and-the-Mind-Doctors-from-1800-to-the-Present-by-Lisa-Appignanesi.pdf
    • http://xiixmcuin.linkpc.net/2203208209201203/Orgasm-and-the-West-A-History-of-Pleasure-from-the-16th-Century-to-the-Present-by-Robert-Muchembled.pdf
    • http://xiixmcuin.linkpc.net/8206206200205205/Critique-of-P

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