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Tool-labelled executable delivered a distinct Setup payload

A sandbox recorded an OpenBullet-labelled program launching two temporary-directory Setup processes. The dropped file’s hash links it to separate analyses showing script execution, an Explorer-named payload and registry commands configured to run at logon.

Oct 20, 2026, 09:44 (UTC+9)Last seenOct 20, 2026Severity100ByCTX TeamIOC17MITRE24RegionsBR

A program recorded as Open Bullet.exe launched two processes named Setup.exe from a temporary directory. The filename alone could describe an ordinary installer helper. But the sandbox also recorded the dropped file’s hash, linking it to a separately analyzed executable whose reports contain script execution, an Explorer-named payload and registry settings intended to run commands at logon. What was the tool-labelled program actually delivering?

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Source: CTX Threat Intelligence