Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
- submitted
03/05/2026, 12:15
General
- Target 2026-05-03_cabdc779e7f6ce86df005d26113d8513_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 1.4MB
- Sample260503-pewfmsb14n
- SHA256 ce582d9ab365fc5e4cfcea78bdc910ca9275cdb4daa26c68f55c20318a07c179
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) 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 14 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-03_cabdc779e7f6ce86df005d26113d8513_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-03_cabdc779e7f6ce86df005d26113d8513_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\faec13bcC:\Windows\Syswow64\faec13bc1⤵
- 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
faec13bc
memory/4192-0-0x0000000000A00000-0x0000000000A89000-memory.dmp
memory/4192-10-0x0000000000A00000-0x0000000000A89000-memory.dmp
memory/4192-12-0x0000000000D00000-0x0000000000D45000-memory.dmp
memory/4192-27-0x0000000000A00000-0x0000000000A89000-memory.dmp
memory/4192-28-0x0000000000D00000-0x0000000000D45000-memory.dmp
memory/4192-55-0x0000000000A00000-0x0000000000A89000-memory.dmp
memory/4288-3-0x0000000000230000-0x00000000002B9000-memory.dmp
memory/4288-14-0x00000000006D0000-0x0000000000715000-memory.dmp
memory/4288-13-0x0000000000230000-0x00000000002B9000-memory.dmp
memory/4288-29-0x0000000000230000-0x00000000002B9000-memory.dmp