Analysis
- max time kernel
149s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
09/05/2026, 02:05
General
- Target 2026-05-08_d602f617a7d6bddc599266d6aa53ee29_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 1.4MB
- Sample260509-chynysc19l
- SHA256 c624b0f34e0786514e64149d48c813f6da6c42abb3e9b06ebebb4bc8b5b9f2b5
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) 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 5 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 8 IoCs
- Modifies system certificate store 2 TTPs 2 IoCs
- Suspicious behavior: EnumeratesProcesses 14 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-08_d602f617a7d6bddc599266d6aa53ee29_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-08_d602f617a7d6bddc599266d6aa53ee29_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
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\Syswow64\5de9b61bC:\Windows\Syswow64\5de9b61b1⤵
- 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
5de9b61b
memory/4892-0-0x0000000000250000-0x00000000002D9000-memory.dmp
memory/4892-10-0x0000000000250000-0x00000000002D9000-memory.dmp
memory/4892-21-0x0000000000250000-0x00000000002D9000-memory.dmp
memory/4892-40-0x0000000000250000-0x00000000002D9000-memory.dmp
memory/4892-47-0x0000000000250000-0x00000000002D9000-memory.dmp
memory/5676-3-0x00000000000D0000-0x0000000000159000-memory.dmp
memory/5676-12-0x00000000000D0000-0x0000000000159000-memory.dmp
memory/5676-22-0x00000000000D0000-0x0000000000159000-memory.dmp