Analysis
- max time kernel
149s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
- submitted
22/04/2026, 18:13
General
- Target 2026-04-22_fc6e916d5b273d765e3111b4841293c5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 1.4MB
- Sample260422-wt7wjsdw2p
- SHA256 18c7b471a60e0524a9186e2dbaef5432ca2c5750466b9874c5ded6593e09afd3
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 17 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 9 IoCs
- Suspicious behavior: EnumeratesProcesses 14 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-22_fc6e916d5b273d765e3111b4841293c5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-22_fc6e916d5b273d765e3111b4841293c5_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\e8b7fd02C:\Windows\Syswow64\e8b7fd021⤵
- 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
e8b7fd02
memory/3768-30-0x0000000000430000-0x00000000004B9000-memory.dmp
memory/3768-31-0x0000000003F00000-0x0000000003FFA000-memory.dmp
memory/3768-10-0x0000000000430000-0x00000000004B9000-memory.dmp
memory/3768-65-0x0000000000430000-0x00000000004B9000-memory.dmp
memory/3768-62-0x0000000003F00000-0x0000000003FFA000-memory.dmp
memory/3768-0-0x0000000000430000-0x00000000004B9000-memory.dmp
memory/3768-60-0x0000000003F00000-0x0000000003FFA000-memory.dmp
memory/3768-54-0x0000000003F00000-0x0000000003FFA000-memory.dmp
memory/4940-19-0x0000000001D50000-0x0000000001E4A000-memory.dmp
memory/4940-50-0x0000000001D50000-0x0000000001E4A000-memory.dmp
memory/4940-33-0x0000000001D50000-0x0000000001E4A000-memory.dmp
memory/4940-32-0x0000000000720000-0x00000000007A9000-memory.dmp
memory/4940-3-0x0000000000720000-0x00000000007A9000-memory.dmp
memory/4940-12-0x0000000000720000-0x00000000007A9000-memory.dmp