Malicious PDF — malware analysis report

Static analysis result for SHA-256 d66dfd8efa857430…

MALICIOUS

PDF

15.6 KB Created: 2019-04-30 03:12:48 +01:00 Authoring application: mPDF 5.7
MD5: c9a0909eb62cc245c2835c1a998bd6d1 SHA-1: b2ae5666560f0bc72b74fe32185a542e4657a4d5 SHA-256: d66dfd8efa8574309d4b976b238388529965acc6e29d9f80fb0d95111547085f
90 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF documents, hosted on the domain xiixmcuin.linkpc.net. This behavior is indicative of a link farm or a lure to download further malicious content. While no scripts were extracted, the ML classifier and the critical heuristic firing strongly suggest malicious intent. The primary attack pattern involves directing users to a large collection of external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9880

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/9200204209209203/X-Man-All-Saints-Day-by-Ben-Raab.pdf
    • http://xiixmcuin.linkpc.net/3202205207200208/Picture-Book-of-Saints-Illustrated-Lives-of-the-Saints-for-Young-and-Old-by-Lawrence-G-Lovasik.pdf
    • http://xiixmcuin.linkpc.net/4205203200208206/Saints-Alive-New-Stories-of-Old-Saints-Volume-II-Celtic-Paths-by-Andrew-M-Seddon.pdf
    • http://xiixmcuin.linkpc.net/8204209207204209/One-Hundred-Saints-Their-Lives-and-Likenesses-Drawn-from-Butler-s-Lives-of-the-Saints-and-Great-Works-of-Western-Art-by-Alban-Butler.pdf
    • http://xiixmcuin.linkpc.net/9200204208201207/Union-Jack-by-Ben-Raab.pdf
    • http://xiixmcuin.linkpc.net/9200204206203200/Warehouse-13-Volume-1-by-Ben-Raab.pdf
    • http://xiixmcuin.linkpc.net/9200205200207201/The-Phantom-The-Legacy-by-Ben-Raab.pdf
    • http://xiixmcuin.linkpc.net/9200204208202202/Where-Does-Pepper-Come-From-And-Other-Fun-Facts-by-Brigitte-Raab.pdf
    • http://xiixmcuin.linkpc.net/9200204208204206/The-Probable-World-by-Lawrence-Raab.pdf
    • http://xiixmcuin.linkpc.net/3201201209207/Mistaking-Each-Other-for-Ghosts-by-Lawrence-Raab.pdf
    • http://xiixmcuin.linkpc.net/9200204208204203/Writers-and-Their-Notebooks-by-Diana-Raab.pdf
    • http://xiixmcuin.linkpc.net/9200204208203207/The-History-of-Forgetting-by-Lawrence-Raab.pdf
    • http://xiixmcuin.linkpc.net/8201208204200201/The-Hillbilly-Moonshine-Massacre-by-Jonathan-Raab.pdf
    • http://xiixmcuin.linkpc.net/1207204209208/Justice-in-the-Back-Room-by-Selwyn-Raab.pdf
    • http://xiixmcuin.linkpc.net/9200204209208204/John-Woo-s-Seven-Brothers-Vol-2-The-Blood-That-Runs-by-Ben-Raab.pdf
    • http://xiixmcuin.linkpc.net/9200205200205207/The-Tradition-of-Catholic-Prayer-by-Christian-Raab.pdf
    • http://xiixmcuin.linkpc.net/9200204208203209/Suspense-Magazine-February-2011-by-John-Raab.pdf
    • http://xiixmcuin.linkpc.net/9200204208201201/Suspense-Magazine-March-2010-by-John-Raab.pdf
    • http://xiixmcuin.linkpc.net/9200205200206202/Suspense-Magazine-February-2013-by-John-Raab.pdf
    • http://xiixmcuin.linkpc.net/9200204208204208/Suspense-Magazine-January-2011-by-John-Raab.pdf
    • http://xiixmcuin.linkpc.net/3201201209

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