Analysis
- max time kernel
149s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
19/04/2026, 06:39
Behavioral task
behavioral1
Sample
2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
13 signatures
150 seconds
General
- Target 2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 768KB
- Sample260419-hettgsay2w
- SHA256 9401704e25844764593fe76dd7b1156fae2245068af847a6c845345b5a8c2401
- MD5 63515299fc02607472ae94a686e94b69
- SHA1 b7e7e81cf0bebfdb7ec83d2da9f456c53ace2b1f
- SHA512 4e4e8523f899e6aa2cd253d4ddbeb33c6a7bf868f16edb0f9e0c26fb73dbef7bda7ee5b26bfa2d40ab510a00217bf08e6012b1992317b229d3f5f9a16e12228e
- SSDEEP 12288:dqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:djHPOSOkx2LFscU6UQOJdT
- TLSH T1E5F47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x00090000000293eb-2.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x00090000000293eb-2.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 9 IoCs
resource yara_rule behavioral2/memory/4320-0-0x0000000000640000-0x00000000006C9000-memory.dmp UPX behavioral2/files/0x00090000000293eb-2.dat UPX behavioral2/memory/5780-4-0x0000000000CC0000-0x0000000000D49000-memory.dmp UPX behavioral2/memory/4320-12-0x0000000000640000-0x00000000006C9000-memory.dmp UPX behavioral2/memory/5780-14-0x0000000000CC0000-0x0000000000D49000-memory.dmp UPX behavioral2/memory/4320-32-0x0000000000640000-0x00000000006C9000-memory.dmp UPX behavioral2/memory/5780-34-0x0000000000CC0000-0x0000000000D49000-memory.dmp UPX behavioral2/memory/5780-47-0x0000000000CC0000-0x0000000000D49000-memory.dmp UPX behavioral2/memory/4320-59-0x0000000000640000-0x00000000006C9000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 5780 ca4347d8 - Unexpected DNS network traffic destination 4 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 9 114.114.114.114 4320 2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 11 223.5.5.5 4320 2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 1 114.114.114.114 4320 2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 2 223.5.5.5 4320 2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Drops file in System32 directory 19 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C ca4347d8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft ca4347d8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData ca4347d8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C ca4347d8 File created C:\Windows\SysWOW64\ca4347d8 2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 ca4347d8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE ca4347d8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 ca4347d8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 ca4347d8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 ca4347d8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\AAD646CB44373074ADE741C38400E7E1 ca4347d8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\AAD646CB44373074ADE741C38400E7E1 ca4347d8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies ca4347d8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache ca4347d8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content ca4347d8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 ca4347d8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 ca4347d8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 ca4347d8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 ca4347d8 -
resource yara_rule behavioral2/memory/4320-0-0x0000000000640000-0x00000000006C9000-memory.dmp upx behavioral2/files/0x00090000000293eb-2.dat upx behavioral2/memory/5780-4-0x0000000000CC0000-0x0000000000D49000-memory.dmp upx behavioral2/memory/4320-12-0x0000000000640000-0x00000000006C9000-memory.dmp upx behavioral2/memory/5780-14-0x0000000000CC0000-0x0000000000D49000-memory.dmp upx behavioral2/memory/4320-32-0x0000000000640000-0x00000000006C9000-memory.dmp upx behavioral2/memory/5780-34-0x0000000000CC0000-0x0000000000D49000-memory.dmp upx behavioral2/memory/5780-47-0x0000000000CC0000-0x0000000000D49000-memory.dmp upx behavioral2/memory/4320-59-0x0000000000640000-0x00000000006C9000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\62f4a8 ca4347d8 File opened for modification C:\Windows\49f5c0 2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - 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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ca4347d8 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix ca4347d8 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" ca4347d8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" ca4347d8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" ca4347d8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" ca4347d8 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" ca4347d8 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ ca4347d8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" ca4347d8 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing ca4347d8 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 5780 ca4347d8 5780 ca4347d8 5780 ca4347d8 5780 ca4347d8 5780 ca4347d8 5780 ca4347d8 5780 ca4347d8 5780 ca4347d8 4320 2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4320 2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4320 2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4320 2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4320 2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4320 2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4320 2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 4320 2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 5780 ca4347d8 Token: SeTcbPrivilege 5780 ca4347d8
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-19_63515299fc02607472ae94a686e94b69_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
PID:4320
-
C:\Windows\Syswow64\ca4347d8C:\Windows\Syswow64\ca4347d81⤵
- 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
PID:5780
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\ca4347d8
- Size 768KB
- SHA256 0a0695be98ad2ad3a1f0079336f6c04ed1d1b55f58862549605e24e8e2674ee9
- MD5 0a21a48514d21f963dee3dbdf2149683
- SHA1 859037e51203cc46b71112bb1a56362446de5147
- SHA512 db023d70e28534e6f466da1d3d17130bba9761cf3d61f34e7b683b1a06e0c46e9d9e71bf3768a953f77442ec15cf38539eaec37f1b4ee959ab5bb77e7a02182e
- SSDEEP 12288:xqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:xjHPOSOkx2LFscU6UQOJdT
- TLSH T1ABF47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH