Analysis
- max time kernel
149s - max time network
151s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-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
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x002f00000002b066-3.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x002f00000002b066-3.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 8 IoCs
resource yara_rule behavioral2/memory/868-0-0x0000000000D70000-0x0000000000DF9000-memory.dmp UPX behavioral2/files/0x002f00000002b066-3.dat UPX behavioral2/memory/2940-4-0x00000000001E0000-0x0000000000269000-memory.dmp UPX behavioral2/memory/868-10-0x0000000000D70000-0x0000000000DF9000-memory.dmp UPX behavioral2/memory/2940-12-0x00000000001E0000-0x0000000000269000-memory.dmp UPX behavioral2/memory/868-29-0x0000000000D70000-0x0000000000DF9000-memory.dmp UPX behavioral2/memory/2940-30-0x00000000001E0000-0x0000000000269000-memory.dmp UPX behavioral2/memory/868-36-0x0000000000D70000-0x0000000000DF9000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 2940 e9cf8919 - 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 2 223.5.5.5 868 2026-04-18_351425b59a64be8367bc07fffb59d0ac_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 8 114.114.114.114 868 2026-04-18_351425b59a64be8367bc07fffb59d0ac_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 9 223.5.5.5 868 2026-04-18_351425b59a64be8367bc07fffb59d0ac_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 1 114.114.114.114 868 2026-04-18_351425b59a64be8367bc07fffb59d0ac_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\Local\Microsoft\Windows\INetCookies e9cf8919 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 e9cf8919 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 e9cf8919 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\AAD646CB44373074ADE741C38400E7E1 e9cf8919 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 e9cf8919 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 e9cf8919 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE e9cf8919 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 e9cf8919 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft e9cf8919 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache e9cf8919 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\AAD646CB44373074ADE741C38400E7E1 e9cf8919 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 e9cf8919 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C e9cf8919 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData e9cf8919 File created C:\Windows\SysWOW64\e9cf8919 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\Content.IE5 e9cf8919 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content e9cf8919 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 e9cf8919 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C e9cf8919 -
resource yara_rule behavioral2/memory/868-0-0x0000000000D70000-0x0000000000DF9000-memory.dmp upx behavioral2/files/0x002f00000002b066-3.dat upx behavioral2/memory/2940-4-0x00000000001E0000-0x0000000000269000-memory.dmp upx behavioral2/memory/868-10-0x0000000000D70000-0x0000000000DF9000-memory.dmp upx behavioral2/memory/2940-12-0x00000000001E0000-0x0000000000269000-memory.dmp upx behavioral2/memory/868-29-0x0000000000D70000-0x0000000000DF9000-memory.dmp upx behavioral2/memory/2940-30-0x00000000001E0000-0x0000000000269000-memory.dmp upx behavioral2/memory/868-36-0x0000000000D70000-0x0000000000DF9000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\325578 e9cf8919 File opened for modification C:\Windows\edc48 2026-04-18_351425b59a64be8367bc07fffb59d0ac_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 2026-04-18_351425b59a64be8367bc07fffb59d0ac_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language e9cf8919 - 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\Cookies\CachePrefix = "Cookie:" e9cf8919 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ e9cf8919 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" e9cf8919 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" e9cf8919 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" e9cf8919 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing e9cf8919 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix e9cf8919 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" e9cf8919 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" e9cf8919 - Modifies system certificate store 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\1F24C630CDA418EF2069FFAD4FDD5F463A1B69AA e9cf8919 Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\1F24C630CDA418EF2069FFAD4FDD5F463A1B69AA\Blob = 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 e9cf8919 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 2940 e9cf8919 2940 e9cf8919 2940 e9cf8919 2940 e9cf8919 2940 e9cf8919 2940 e9cf8919 2940 e9cf8919 2940 e9cf8919 868 2026-04-18_351425b59a64be8367bc07fffb59d0ac_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 868 2026-04-18_351425b59a64be8367bc07fffb59d0ac_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 868 2026-04-18_351425b59a64be8367bc07fffb59d0ac_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 868 2026-04-18_351425b59a64be8367bc07fffb59d0ac_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 868 2026-04-18_351425b59a64be8367bc07fffb59d0ac_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 868 2026-04-18_351425b59a64be8367bc07fffb59d0ac_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 868 2026-04-18_351425b59a64be8367bc07fffb59d0ac_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 868 2026-04-18_351425b59a64be8367bc07fffb59d0ac_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 2940 e9cf8919 Token: SeTcbPrivilege 2940 e9cf8919
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:868
-
C:\Windows\Syswow64\e9cf8919C:\Windows\Syswow64\e9cf89191⤵
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2940
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\e9cf8919
- Size 768KB
- SHA256 19b1618862a772fcf727b41bd9d4da3e015da7c42b338ad783df806e4c3acc32
- MD5 c2ef63f2827c13870df984e673b65b55
- SHA1 2829c70c25d49dc212be0ae3ed609ac0bd5fb21a
- SHA512 32c344a5b893c81a4202a48402a52e4485b36aecc0b2e938af5e9dbb286e3597da92beac97e3c85ec8f04dc5b7c53a2285bb6c2c817e7093f637ef6ef4ab3edd
- SSDEEP 12288:RqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:RjHPOSOkx2LFscU6UQOJdT
- TLSH T14BF47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH