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Registry setting targeted a temporary executable that also ran as a child

In separate sandbox reports, the sample launched temporary executables whose paths also appeared in persistence-related registry settings; two reports show those executables launching further files. Two configured C2 addresses also appeared as TCP traffic destinations, but the records do not show a successful command exchange or a later logon launch.

Oct 19, 2026, 18:24 (UTC+9)Last seenOct 19, 2026Severity84ByCTX TeamActorSpring DragonLotus BlossomIOC11RegionsUS

A temporary executable launched by bofuv.exe was also the target of a persistence-related registry setting. In the same Zenbox report, that temporary executable dropped and launched another executable. Was the temporary directory merely a staging area, or did it hold the components the sample was arranging to keep running? The evidence supports the second interpretation, with a specific limit: it shows an execution pattern linked to a launch setting, not a demonstrated return after logon.

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Source: CTX Threat Intelligence