Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
- submitted
22/04/2026, 04:29
General
- Target 2026-04-22_af429246da503b2d2d127cf7076f20a9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 1.4MB
- Sample260422-e4b37agz8q
- SHA256 5d759f22b916b88707f557774e637e82da53df26b1682340d4412d40ae684c54
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
- Detection of Cryptolocker Samples 1 IoCs
- UPX dump on OEP (original entry point) 8 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 5 IoCs
- UPX packed file 8 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 8 IoCs
- Suspicious behavior: EnumeratesProcesses 26 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-22_af429246da503b2d2d127cf7076f20a9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-22_af429246da503b2d2d127cf7076f20a9_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\3d5b5188C:\Windows\Syswow64\3d5b51881⤵
- 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
55bd20
3d5b5188
memory/3668-0-0x0000000000A80000-0x0000000000B09000-memory.dmp
memory/3668-17-0x0000000000A80000-0x0000000000B09000-memory.dmp
memory/3668-19-0x0000000000C10000-0x0000000000CEC000-memory.dmp
memory/3668-35-0x0000000000A80000-0x0000000000B09000-memory.dmp
memory/3668-65-0x0000000000A80000-0x0000000000B09000-memory.dmp
memory/5008-3-0x0000000000B80000-0x0000000000C09000-memory.dmp
memory/5008-21-0x00000000008E0000-0x00000000009BC000-memory.dmp
memory/5008-22-0x0000000000B80000-0x0000000000C09000-memory.dmp
memory/5008-37-0x0000000000B80000-0x0000000000C09000-memory.dmp