Analysis
- max time kernel
150s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
18/04/2026, 02:50
Behavioral task
behavioral1
Sample
2026-04-18_351425b59a64be8367bc07fffb59d0ac_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
12 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-04-18_351425b59a64be8367bc07fffb59d0ac_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win11-20260130-en
windows11-21h2-x64
13 signatures
150 seconds
General
- Target 2026-04-18_351425b59a64be8367bc07fffb59d0ac_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 768KB
- Sample260418-dbspssas7p
- SHA256 8b368edde72de4abf662345c2f3814c65a3dcdc2d1532d5db8fcfc708993ffdd
- MD5 351425b59a64be8367bc07fffb59d0ac
- SHA1 33dea533f1fb62018291e179810652ea50638b97
- SHA512 401233214db0795ed3f2aca15041e5dfa35e1f1db6b13fdb19eb977629ecf74b324926d14779d524477244a8933be79c776fe4980df101b91c7d817402457096
- SSDEEP 12288:zqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:zjHPOSOkx2LFscU6UQOJdT
- TLSH T107F47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x0008000000021698-2.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x0008000000021698-2.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 8 IoCs
resource yara_rule behavioral1/memory/4800-0-0x0000000000060000-0x00000000000E9000-memory.dmp UPX behavioral1/files/0x0008000000021698-2.dat UPX behavioral1/memory/4832-4-0x0000000000F70000-0x0000000000FF9000-memory.dmp UPX behavioral1/memory/4800-16-0x0000000000060000-0x00000000000E9000-memory.dmp UPX behavioral1/memory/4832-18-0x0000000000F70000-0x0000000000FF9000-memory.dmp UPX behavioral1/memory/4800-30-0x0000000000060000-0x00000000000E9000-memory.dmp UPX behavioral1/memory/4832-31-0x0000000000F70000-0x0000000000FF9000-memory.dmp UPX behavioral1/memory/4800-43-0x0000000000060000-0x00000000000E9000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 4832 922e9880 - Unexpected DNS network traffic destination 6 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 115 114.114.114.114 4800 2026-04-18_351425b59a64be8367bc07fffb59d0ac_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 116 223.5.5.5 4800 2026-04-18_351425b59a64be8367bc07fffb59d0ac_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 3 114.114.114.114 4800 2026-04-18_351425b59a64be8367bc07fffb59d0ac_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 4 223.5.5.5 4800 2026-04-18_351425b59a64be8367bc07fffb59d0ac_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 49 114.114.114.114 4800 2026-04-18_351425b59a64be8367bc07fffb59d0ac_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 51 223.5.5.5 4800 2026-04-18_351425b59a64be8367bc07fffb59d0ac_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\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 922e9880 File created C:\Windows\SysWOW64\922e9880 2026-04-18_351425b59a64be8367bc07fffb59d0ac_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 922e9880 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 922e9880 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 922e9880 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 922e9880 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 922e9880 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 922e9880 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 922e9880 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 922e9880 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 922e9880 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 922e9880 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 922e9880 -
resource yara_rule behavioral1/memory/4800-0-0x0000000000060000-0x00000000000E9000-memory.dmp upx behavioral1/files/0x0008000000021698-2.dat upx behavioral1/memory/4832-4-0x0000000000F70000-0x0000000000FF9000-memory.dmp upx behavioral1/memory/4800-16-0x0000000000060000-0x00000000000E9000-memory.dmp upx behavioral1/memory/4832-18-0x0000000000F70000-0x0000000000FF9000-memory.dmp upx behavioral1/memory/4800-30-0x0000000000060000-0x00000000000E9000-memory.dmp upx behavioral1/memory/4832-31-0x0000000000F70000-0x0000000000FF9000-memory.dmp upx behavioral1/memory/4800-43-0x0000000000060000-0x00000000000E9000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\522d80 2026-04-18_351425b59a64be8367bc07fffb59d0ac_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\52b9c0 922e9880 - 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 2026-04-18_351425b59a64be8367bc07fffb59d0ac_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 922e9880 - 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 922e9880 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 922e9880 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 922e9880 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 922e9880 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 922e9880 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 922e9880 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 922e9880 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 922e9880 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 922e9880 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4832 922e9880 4832 922e9880 4832 922e9880 4832 922e9880 4832 922e9880 4832 922e9880 4832 922e9880 4832 922e9880 4800 2026-04-18_351425b59a64be8367bc07fffb59d0ac_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4800 2026-04-18_351425b59a64be8367bc07fffb59d0ac_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4800 2026-04-18_351425b59a64be8367bc07fffb59d0ac_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4800 2026-04-18_351425b59a64be8367bc07fffb59d0ac_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4800 2026-04-18_351425b59a64be8367bc07fffb59d0ac_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4800 2026-04-18_351425b59a64be8367bc07fffb59d0ac_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4800 2026-04-18_351425b59a64be8367bc07fffb59d0ac_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 4800 2026-04-18_351425b59a64be8367bc07fffb59d0ac_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 4832 922e9880 Token: SeTcbPrivilege 4832 922e9880
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-18_351425b59a64be8367bc07fffb59d0ac_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-18_351425b59a64be8367bc07fffb59d0ac_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:4800
-
C:\Windows\Syswow64\922e9880C:\Windows\Syswow64\922e98801⤵
- 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:4832
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\922e9880
- Size 768KB
- SHA256 389c5453bff1401bf68825f7ec9529caa8f925ef53c0ed1d51994475c5aa4096
- MD5 16b442332fe922bce0c823e98d717c2f
- SHA1 de3c5796a4705d60cbff7c5e8a756df6ed129a26
- SHA512 d00b2d21af6b3f1c3b417235cd9bb58fc5046a56d0305055331978b552165838960cfb6b0b0e76601f86539ddfc792163a072065de5c904b8686cef4aef4f7ee
- SSDEEP 12288:5qXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:5jHPOSOkx2LFscU6UQOJdT
- TLSH T157F47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH