Analysis
- max time kernel
150s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
- submitted
15/04/2026, 04:48
General
- Target 2026-04-15_a7e248986f322532c7f3f462f6508fc9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 768KB
- Sample260415-ffe1lsat3t
- SHA256 7695ffeb97d90ac81065031c95ae766e1d9c64fb73e363eff08d97c08985efe5
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
- Detection of Cryptolocker Samples 1 IoCs
- UPX dump on OEP (original entry point) 7 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 7 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 14 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-15_a7e248986f322532c7f3f462f6508fc9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-15_a7e248986f322532c7f3f462f6508fc9_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\d444a7e8C:\Windows\Syswow64\d444a7e81⤵
- 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
d444a7e8
memory/1552-0-0x0000000000260000-0x00000000002E9000-memory.dmp
memory/1552-10-0x0000000000260000-0x00000000002E9000-memory.dmp
memory/1552-22-0x0000000000260000-0x00000000002E9000-memory.dmp
memory/4256-3-0x00000000003C0000-0x0000000000449000-memory.dmp
memory/4256-13-0x00000000003C0000-0x0000000000449000-memory.dmp
memory/4256-23-0x00000000003C0000-0x0000000000449000-memory.dmp