Analysis
- max time kernel
148s - max time network
153s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
23/07/2026, 07:47
Behavioral task
behavioral1
Sample
2026-07-23_9c42f0ea7651a13e40426c98e8df4e76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
12 signatures
150 seconds
General
- Target 2026-07-23_9c42f0ea7651a13e40426c98e8df4e76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 768KB
- Sample260723-jmkffsyvhs
- SHA256 928c64a88efc09d07a84cd6fd3ef1a3a4938883f0aec931076cc3c657aa8beb6
- MD5 9c42f0ea7651a13e40426c98e8df4e76
- SHA1 10b68d9cd41124dd50d4ac0d027e9d9aca793320
- SHA512 e5fbdbb494d6ea139746b5bc3745b650896cb3b9db0fd27a3cd8093a7440a9fd5d28f2e3c9bbf1283f5d5e07bc172be6384d92664e2edf24c0c4776e94f85c55
- SSDEEP 12288:RqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:RjHPOSOkx2LFscU6UQOJdT
- TLSH T1EBF47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000a000000019cb8-2.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x000a000000019cb8-2.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 9 IoCs
resource yara_rule behavioral2/memory/5904-0-0x0000000000150000-0x00000000001D9000-memory.dmp UPX behavioral2/files/0x000a000000019cb8-2.dat UPX behavioral2/memory/5116-3-0x00000000004F0000-0x0000000000579000-memory.dmp UPX behavioral2/memory/5904-16-0x0000000000150000-0x00000000001D9000-memory.dmp UPX behavioral2/memory/5116-18-0x00000000004F0000-0x0000000000579000-memory.dmp UPX behavioral2/memory/5116-22-0x00000000004F0000-0x0000000000579000-memory.dmp UPX behavioral2/memory/5904-31-0x0000000000150000-0x00000000001D9000-memory.dmp UPX behavioral2/memory/5116-32-0x00000000004F0000-0x0000000000579000-memory.dmp UPX behavioral2/memory/5904-56-0x0000000000150000-0x00000000001D9000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 5116 8cb365b1 - 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 4 114.114.114.114 5904 2026-07-23_9c42f0ea7651a13e40426c98e8df4e76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 8 223.5.5.5 5904 2026-07-23_9c42f0ea7651a13e40426c98e8df4e76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 29 114.114.114.114 5904 2026-07-23_9c42f0ea7651a13e40426c98e8df4e76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 30 223.5.5.5 5904 2026-07-23_9c42f0ea7651a13e40426c98e8df4e76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 8cb365b1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 8cb365b1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 8cb365b1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 8cb365b1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 8cb365b1 File created C:\Windows\SysWOW64\8cb365b1 2026-07-23_9c42f0ea7651a13e40426c98e8df4e76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 8cb365b1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 8cb365b1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 8cb365b1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 8cb365b1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 8cb365b1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 8cb365b1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 8cb365b1 -
resource yara_rule behavioral2/memory/5904-0-0x0000000000150000-0x00000000001D9000-memory.dmp upx behavioral2/files/0x000a000000019cb8-2.dat upx behavioral2/memory/5116-3-0x00000000004F0000-0x0000000000579000-memory.dmp upx behavioral2/memory/5904-16-0x0000000000150000-0x00000000001D9000-memory.dmp upx behavioral2/memory/5116-18-0x00000000004F0000-0x0000000000579000-memory.dmp upx behavioral2/memory/5116-22-0x00000000004F0000-0x0000000000579000-memory.dmp upx behavioral2/memory/5904-31-0x0000000000150000-0x00000000001D9000-memory.dmp upx behavioral2/memory/5116-32-0x00000000004F0000-0x0000000000579000-memory.dmp upx behavioral2/memory/5904-56-0x0000000000150000-0x00000000001D9000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\579678 8cb365b1 File opened for modification C:\Windows\651420 2026-07-23_9c42f0ea7651a13e40426c98e8df4e76_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 2026-07-23_9c42f0ea7651a13e40426c98e8df4e76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 8cb365b1 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 8cb365b1 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 8cb365b1 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 8cb365b1 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 8cb365b1 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 8cb365b1 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 8cb365b1 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 8cb365b1 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 8cb365b1 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 8cb365b1 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 5116 8cb365b1 5116 8cb365b1 5116 8cb365b1 5116 8cb365b1 5116 8cb365b1 5116 8cb365b1 5116 8cb365b1 5116 8cb365b1 5904 2026-07-23_9c42f0ea7651a13e40426c98e8df4e76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 5904 2026-07-23_9c42f0ea7651a13e40426c98e8df4e76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 5904 2026-07-23_9c42f0ea7651a13e40426c98e8df4e76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 5904 2026-07-23_9c42f0ea7651a13e40426c98e8df4e76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 5904 2026-07-23_9c42f0ea7651a13e40426c98e8df4e76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 5904 2026-07-23_9c42f0ea7651a13e40426c98e8df4e76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 5904 2026-07-23_9c42f0ea7651a13e40426c98e8df4e76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 5904 2026-07-23_9c42f0ea7651a13e40426c98e8df4e76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 5904 2026-07-23_9c42f0ea7651a13e40426c98e8df4e76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 5904 2026-07-23_9c42f0ea7651a13e40426c98e8df4e76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 5904 2026-07-23_9c42f0ea7651a13e40426c98e8df4e76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 5904 2026-07-23_9c42f0ea7651a13e40426c98e8df4e76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 5904 2026-07-23_9c42f0ea7651a13e40426c98e8df4e76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 5904 2026-07-23_9c42f0ea7651a13e40426c98e8df4e76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 5904 2026-07-23_9c42f0ea7651a13e40426c98e8df4e76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 5904 2026-07-23_9c42f0ea7651a13e40426c98e8df4e76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 5116 8cb365b1 Token: SeTcbPrivilege 5116 8cb365b1
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-23_9c42f0ea7651a13e40426c98e8df4e76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-23_9c42f0ea7651a13e40426c98e8df4e76_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:5904
-
C:\Windows\Syswow64\8cb365b1C:\Windows\Syswow64\8cb365b11⤵
- 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:5116
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Windows\SysWOW64\8cb365b1
- Size 768KB
- SHA256 57047f7814f07de1401714fb0caa0f283d92b34af09bea3d4ef447772c71ca00
- MD5 2509eb9a5580454f849205fed83f01fb
- SHA1 9e254f58360feb93f5b7466ba7dc631163acbf08
- SHA512 0ad06d49d88611ecacd1045f5d68ddfcb045d3321ce2fd5911b258957cb63505f598092fd3c92808b9a3c19dff71bb6962284812d9457939d611d05e9d8a65c8
- SSDEEP 12288:VqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:VjHPOSOkx2LFscU6UQOJdT
- TLSH T136F47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH