Analysis
- max time kernel
149s - max time network
146s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
22/04/2026, 04:02
General
- Target 2026-04-22_d0f13fa808f998dc3f86e6cf74a1ada5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 1.4MB
- Sample260422-elw1msgx4m
- SHA256 c5660b0db6cb16dffa9e139563d6c93129106a0011c9112bcb5bbf63a12893c2
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
- Detection of Cryptolocker Samples 1 IoCs
- UPX dump on OEP (original entry point) 9 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 17 IoCs
- UPX packed file 9 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\2026-04-22_d0f13fa808f998dc3f86e6cf74a1ada5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-22_d0f13fa808f998dc3f86e6cf74a1ada5_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\3a64f42C:\Windows\Syswow64\3a64f421⤵
- 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
3a64f42
memory/3168-39-0x0000000003F40000-0x000000000403E000-memory.dmp
memory/3168-64-0x0000000003F40000-0x000000000403E000-memory.dmp
memory/3168-15-0x0000000000A00000-0x0000000000A89000-memory.dmp
memory/3168-0-0x0000000000A00000-0x0000000000A89000-memory.dmp
memory/3168-62-0x0000000003F40000-0x000000000403E000-memory.dmp
memory/3168-61-0x0000000000A00000-0x0000000000A89000-memory.dmp
memory/3168-56-0x0000000003F40000-0x000000000403E000-memory.dmp
memory/3168-34-0x0000000000A00000-0x0000000000A89000-memory.dmp
memory/3168-35-0x0000000003F40000-0x000000000403E000-memory.dmp
memory/3168-55-0x0000000000A00000-0x0000000000A89000-memory.dmp
memory/4632-17-0x0000000000510000-0x0000000000599000-memory.dmp
memory/4632-41-0x0000000002630000-0x000000000272E000-memory.dmp
memory/4632-36-0x0000000000510000-0x0000000000599000-memory.dmp
memory/4632-29-0x0000000002630000-0x000000000272E000-memory.dmp
memory/4632-24-0x0000000002630000-0x000000000272E000-memory.dmp
memory/4632-18-0x0000000002630000-0x000000000272E000-memory.dmp
memory/4632-4-0x0000000000510000-0x0000000000599000-memory.dmp