Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1cd81255e2e7ab5…

MALICIOUS

PDF

21.6 KB Created: 2019-04-30 04:45:04 +01:00 Authoring application: mPDF 5.7
MD5: 23fa791bb69c5b900199659cc3204210 SHA-1: ed4ea754c903633a0c1b670b285bd0cfcc316f1b SHA-256: f1cd81255e2e7ab5f6a77a7f5695d61bae6994b0c27bfee38b6dcbe4004c0e2e
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO poisoning or to distribute malicious content. The ML classifier strongly indicated maliciousness. No scripts were extracted, and the document body was unreadable, limiting further analysis of the specific lure.

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/9207206200208/Fault-Lines-How-Hidden-Fractures-Still-Threaten-the-World-Economy-by-Raghuram-G-Rajan.pdf
    • http://xiixmcuin.linkpc.net/1201208203203206207/Magni-Fault-Lines-by-Matt-Burns.pdf
    • http://xiixmcuin.linkpc.net/4202203206208201/Fault-Lines-A-Memoir-by-Meena-Alexander.pdf
    • http://xiixmcuin.linkpc.net/2203203208209200/Flash-Point-Fault-Lines-2-by-Thomas-Locke.pdf
    • http://xiixmcuin.linkpc.net/1208205208203206/Fault-Lines-Views-Across-Haiti-s-Divide-by-Beverly-Bell.pdf
    • http://xiixmcuin.linkpc.net/7201205206209207/Fault-Lines-Sexuality-Incest-and-Catholic-Family-Culture-by-Tish-Langlois.pdf
    • http://xiixmcuin.linkpc.net/4204208204207/On-Saudi-Arabia-Its-People-Past-Religion-Fault-Lines---and-Future-by-Karen-Elliott-House.pdf
    • http://xiixmcuin.linkpc.net/1200207207200203201/The-Fault-in-Our-Jars-A-Parody-on-The-Fault-in-Our-Stars-by-John-Green-by-Emilie-Haensel.pdf
    • http://xiixmcuin.linkpc.net/2205203200200205/The-World-That-Trade-Created-Society-Culture-and-the-World-Economy-1400-to-the-Present-by-Kenneth-Pomeranz.pdf
    • http://xiixmcuin.linkpc.net/6204200206206207/The-Modern-World-System-II-Mercantilism-and-the-Consolidation-of-the-European-World-Economy-1600-1750-by-Immanuel-Wallerstein.pdf
    • http://xiixmcuin.linkpc.net/7206207202207200/Cathedrals-In-The-Sky-by-Andrew-Rajan.pdf
    • http://xiixmcuin.linkpc.net/6207207208203205/The-Global-Code-What-We-All-Value-and-Why-in-the-New-World-Economy-by-Clotaire-Rapaille.pdf
    • http://xiixmcuin.linkpc.net/2205203204204206/Into-The-Open-Economy-How-Everything-You-Know-About-The-World-Is-About-To-Change-by-Colin-R-Turner.pdf
    • http://xiixmcuin.linkpc.net/1201204202207203205/Surgical-Efficiency-and-Economy-See-Proceedings-of-the-3rd-World-Conference-by-P-Dohrmann.pdf
    • http://xiixmcuin.linkpc.net/5209201209204201/Peasants-And-Capital-Dominica-In-The-World-Economy-by-Michel-Rolph-Trouillot.pdf
    • http://xiixmcuin.linkpc.net/9206207205208203/Another-Economy-is-Possible-Culture-and-Economy-in-a-Time-of-Crisis-by-Manuel-Castells.pdf
    • http://xiixmcuin.linkpc.net/1203207205200201/Monetary-theory-Inflation-interest-and-growth-in-the-world-economy-by-Robert-A-Mundell.pdf
    • http://xiixmcuin.linkpc.net/1200209206206209207/Critical-Thinking-and-Logical-Reasoning-Workbook-10-by-Ranga-Raghuram.pdf
    • http://xiixmcuin.linkpc.net/1209206209203206/The-Great-Divergence-China-Europe-and-the-Making-of-the-Modern-World-Economy-by-Kenneth-Pomeranz.pdf
    • http://xiixmcuin.linkpc.net/2201205201200202/Pulping-The-South-Industrial-Tree-Plantations-and-the-World-Paper-Economy-by-Ricardo-Carriere.pdf