Malicious PDF — malware analysis report

Static analysis result for SHA-256 e25eb821a30c775f…

MALICIOUS

PDF

17.1 KB Created: 2019-04-30 06:01:20 +01:00 Authoring application: mPDF 5.7
MD5: 0c2738c7574151b6ce9398b13e458365 SHA-1: 4bbdaf93403da6a0f5d2c430d695d17a2ab68f6e SHA-256: e25eb821a30c775fc2b573e177cb6dcb704eb87a8195fed64713aa192744fe1a
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links pointing to external PDF files hosted on the dynamic DNS domain xiixmcuin.linkpc.net. This technique is often used to distribute malicious content or to engage in SEO poisoning to drive traffic to malicious sites. The ML classifier strongly supports the malicious verdict.

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/4205207208204/Red-River-Vol-1-Red-River-1-by-Chie-Shinohara.pdf
    • http://xiixmcuin.linkpc.net/6200204209206204/Red-River-Vol-22-Red-River-22-by-Chie-Shinohara.pdf
    • http://xiixmcuin.linkpc.net/6200204209202203/Red-River-Vol-15-Red-River-15-by-Chie-Shinohara.pdf
    • http://xiixmcuin.linkpc.net/6200204209201200/Red-River-Vol-8-Red-River-8-by-Chie-Shinohara.pdf
    • http://xiixmcuin.linkpc.net/6200204209206201/Red-River-Vol-16-Red-River-16-by-Chie-Shinohara.pdf
    • http://xiixmcuin.linkpc.net/6200204209200207/Red-River-Vol-2-Red-River-2-by-Chie-Shinohara.pdf
    • http://xiixmcuin.linkpc.net/6200204209206203/Red-River-Vol-21-Red-River-21-by-Chie-Shinohara.pdf
    • http://xiixmcuin.linkpc.net/6200204209206206/Red-River-Vol-24-Red-River-24-by-Chie-Shinohara.pdf
    • http://xiixmcuin.linkpc.net/6200204209201203/Red-River-Vol-28-Red-River-28-by-Chie-Shinohara.pdf
    • http://xiixmcuin.linkpc.net/1200207206202203207/Arge-County-Geography-Introduction-Raul-Doamnei-Raul-Targului-Bratia-River-Bughea-River-Arge-El-River-Valea-Brusturetului-River-by-Source-Wikipedia.pdf
    • http://xiixmcuin.linkpc.net/6200205200200208/-10-Ao-no-Fuuin-10-by-Chie-Shinohara.pdf
    • http://xiixmcuin.linkpc.net/6200205200200203/-8-Ao-no-Fuuin-8-by-Chie-Shinohara.pdf
    • http://xiixmcuin.linkpc.net/6200205200200206/-11-Ao-no-Fuuin-11-by-Chie-Shinohara.pdf
    • http://xiixmcuin.linkpc.net/6200204209209209/-3-Ao-no-Fuuin-3-by-Chie-Shinohara.pdf
    • http://xiixmcuin.linkpc.net/2207206209202200/--1-Yume-no-Shizuku-Ougon-no-Torikago-1-by-Chie-Shinohara.pdf
    • http://xiixmcuin.linkpc.net/6203201206203201/Black-Dragon-River-A-Journey-Down-the-Amur-River-at-the-Borderlands-of-Empires-by-Dominic-Ziegler.pdf
    • http://xiixmcuin.linkpc.net/3209204200205207/River-Lady-James-River-Trilogy-3-by-Jude-Deveraux.pdf
    • http://xiixmcuin.linkpc.net/9202208207204204/Nahanni-River-of-Gold-River-of-Dreams-by-Neil-Hartling.pdf
    • http://xiixmcuin.linkpc.net/2203206200209206/Following-the-River-Traces-of-Red-River-Women-by-Lorri-Neilsen-Glenn.pdf
    • http://xiixmcuin.linkpc.net/2201201200205209/Sculptured-Anthropoid-Ape-Heads-Found-in-or-Near-the-Valley-of-the-John-Day-River-a-Tributary-of-the-Columbia-River-Oregon-by-James-Terry.pdf

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