Analysis
- max time kernel
149s - max time network
94s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
15/04/2026, 04:02
General
- Target 2026-04-15_6c5322f6b42a001c057567903d65e527_amadey_cobalt-strike_coinminer_hellokitty_hijackloader_i.exe
- Size 5.2MB
- Sample260415-el8dnset4r
- SHA256 43c9b5ad0f7ed26fd0777a48d1b68d9e0e55a9818e50a041bab3fe579bdf79c8
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_6c5322f6b42a001c057567903d65e527_amadey_cobalt-strike_coinminer_hellokitty_hijackloader_i.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-15_6c5322f6b42a001c057567903d65e527_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\WEL4699.tmp2⤵
- Opens file in notepad (likely ransom note)
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
vcredist_x86.exe
WEL4699.tmp
memory/1464-43-0x00000249BC290000-0x00000249BC333000-memory.dmp
memory/1464-45-0x00000249BC290000-0x00000249BC333000-memory.dmp
memory/1464-56-0x00000249BC290000-0x00000249BC333000-memory.dmp
memory/2892-42-0x0000023DE8390000-0x0000023DE8433000-memory.dmp