Analysis
- max time kernel
149s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
26/04/2026, 01:41
General
- Target 2026-04-26_e5258c7da85386fd171e1b8d11467429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 768KB
- Sample260426-b37xpady5m
- SHA256 18cdc3664b2ac464cc3c8f472e6fa595f2b7ec8d1b909a5cb6c8fd91f3e8a09a
Malware Config
Signatures
- Custom signatureDetection of CryptoLocker Variants 1 IoCs
- Custom signatureDetection of Cryptolocker Samples 1 IoCs
- Custom signatureUPX dump on OEP (original entry point) 11 IoCs
- Executes dropped EXE 1 IoCs
- Unexpected DNS network traffic destination 4 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
- Drops file in System32 directory 15 IoCs
- UPX packed file 11 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Drops file in Windows directory 2 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Modifies data under HKEY_USERS 9 IoCs
- Suspicious behavior: EnumeratesProcesses 14 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-26_e5258c7da85386fd171e1b8d11467429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-26_e5258c7da85386fd171e1b8d11467429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"1⤵
- Unexpected DNS network traffic destination
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\Syswow64\e8ce3825C:\Windows\Syswow64\e8ce38251⤵
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
e8ce3825
memory/3100-17-0x0000000001490000-0x00000000014F4000-memory.dmp
memory/3100-45-0x0000000000470000-0x00000000004F9000-memory.dmp
memory/3100-15-0x0000000000470000-0x00000000004F9000-memory.dmp
memory/3100-63-0x0000000000470000-0x00000000004F9000-memory.dmp
memory/3100-36-0x0000000001490000-0x00000000014F4000-memory.dmp
memory/3100-0-0x0000000000470000-0x00000000004F9000-memory.dmp
memory/3100-35-0x0000000000470000-0x00000000004F9000-memory.dmp
memory/3672-25-0x0000000000F60000-0x0000000000FE9000-memory.dmp
memory/3672-19-0x0000000000CB0000-0x0000000000D14000-memory.dmp
memory/3672-37-0x0000000000F60000-0x0000000000FE9000-memory.dmp
memory/3672-4-0x0000000000F60000-0x0000000000FE9000-memory.dmp
memory/3672-47-0x0000000000F60000-0x0000000000FE9000-memory.dmp
memory/3672-48-0x0000000000CB0000-0x0000000000D14000-memory.dmp
memory/3672-18-0x0000000000F60000-0x0000000000FE9000-memory.dmp