Analysis
- max time kernel
149s - max time network
128s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
15/04/2026, 22:48
General
- Target 2026-04-15_3fb8fc1159f113fc6362ffcf3e1c01f9_amadey_cobalt-strike_coinminer_hellokitty_hijackloader_i.exe
- Size 11.8MB
- Sample260415-2red4sdx9x
- SHA256 380852cbef0ec4277b6b9be514bc0d69eae3e30cff6b3608d12741aff0861610
Score
9/10
Malware Config
Signatures
- UPX dump on OEP (original entry point) 1 IoCs
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Drops file in Windows directory 9 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Opens file in notepad (likely ransom note) 1 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-15_3fb8fc1159f113fc6362ffcf3e1c01f9_amadey_cobalt-strike_coinminer_hellokitty_hijackloader_i.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-15_3fb8fc1159f113fc6362ffcf3e1c01f9_amadey_cobalt-strike_coinminer_hellokitty_hijackloader_i.exe"1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\notepad.exe"C:\Windows\System32\notepad.exe" C:\Users\Admin\AppData\Local\Temp\WEL4FC1.tmp2⤵
- Opens file in notepad (likely ransom note)
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
vcredist_x86.exe
WEL4FC1.tmp
memory/2812-43-0x0000026F2D770000-0x0000026F2D85A000-memory.dmp
memory/2812-45-0x0000026F2D770000-0x0000026F2D85A000-memory.dmp
memory/5116-42-0x0000021DB6ED0000-0x0000021DB6FBA000-memory.dmp