TrendLabs: A Closer Look at the Locky Poser, PyLocky Ransomware

Figure 1: Distribution of PyLocky-related spam runs on August 2 (left) and August 24 (right)
REF: https://blog.trendmicro.com/trendlabs-security-intelligence/a-closer-look-at-the-locky-poser-pylocky-ransomware/