Analysis
- max time kernel
150s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
27/07/2026, 20:02
Behavioral task
behavioral1
Sample
2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260513-en
12 signatures
150 seconds
General
- Target 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 1.4MB
- Sample260727-ysc1wsda42
- SHA256 b7bed6ff5e0a3a5ee11bb9cb3dc5aecdc48e4bd9a3122183ca9d9c06366f8db2
- MD5 7e21a2000fed50808d96551c17ad0541
- SHA1 a8b634c8149158f87b1a85f56fa2edbd7eea9d3a
- SHA512 22af08314b3cadf4d217bc57e05e65871c468c206813e275e5f6d12b9a6d0c18fbf069c0bafe90e0155ff4d591fbc59e5b82f398d67ce8dc1fac6f89040a4fbf
- SSDEEP 24576:BjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:BTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T1B8658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x00120000000118f0-2.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x00120000000118f0-2.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 8 IoCs
resource yara_rule behavioral2/memory/4088-0-0x0000000000BC0000-0x0000000000C49000-memory.dmp UPX behavioral2/files/0x00120000000118f0-2.dat UPX behavioral2/memory/3256-3-0x0000000000AD0000-0x0000000000B59000-memory.dmp UPX behavioral2/memory/4088-10-0x0000000000BC0000-0x0000000000C49000-memory.dmp UPX behavioral2/memory/3256-12-0x0000000000AD0000-0x0000000000B59000-memory.dmp UPX behavioral2/memory/4088-25-0x0000000000BC0000-0x0000000000C49000-memory.dmp UPX behavioral2/memory/3256-26-0x0000000000AD0000-0x0000000000B59000-memory.dmp UPX behavioral2/memory/4088-47-0x0000000000BC0000-0x0000000000C49000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 3256 19661990 - 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 1 114.114.114.114 4088 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 3 223.5.5.5 4088 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 11 114.114.114.114 4088 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 12 223.5.5.5 4088 2026-07-27_7e21a2000fed50808d96551c17ad0541_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\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 19661990 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 19661990 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 19661990 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 19661990 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 19661990 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 19661990 File created C:\Windows\SysWOW64\19661990 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 19661990 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 19661990 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 19661990 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 19661990 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 19661990 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 19661990 -
resource yara_rule behavioral2/memory/4088-0-0x0000000000BC0000-0x0000000000C49000-memory.dmp upx behavioral2/files/0x00120000000118f0-2.dat upx behavioral2/memory/3256-3-0x0000000000AD0000-0x0000000000B59000-memory.dmp upx behavioral2/memory/4088-10-0x0000000000BC0000-0x0000000000C49000-memory.dmp upx behavioral2/memory/3256-12-0x0000000000AD0000-0x0000000000B59000-memory.dmp upx behavioral2/memory/4088-25-0x0000000000BC0000-0x0000000000C49000-memory.dmp upx behavioral2/memory/3256-26-0x0000000000AD0000-0x0000000000B59000-memory.dmp upx behavioral2/memory/4088-47-0x0000000000BC0000-0x0000000000C49000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\37be70 19661990 File opened for modification C:\Windows\45fcf0 2026-07-27_7e21a2000fed50808d96551c17ad0541_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 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 19661990 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 19661990 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 19661990 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 19661990 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 19661990 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 19661990 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 19661990 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 19661990 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 19661990 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 19661990 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 3256 19661990 3256 19661990 3256 19661990 3256 19661990 3256 19661990 3256 19661990 3256 19661990 3256 19661990 4088 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4088 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4088 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4088 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4088 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4088 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4088 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4088 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4088 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4088 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4088 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4088 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4088 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4088 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4088 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 4088 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 3256 19661990 Token: SeTcbPrivilege 3256 19661990
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-27_7e21a2000fed50808d96551c17ad0541_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:4088
-
C:\Windows\Syswow64\19661990C:\Windows\Syswow64\196619901⤵
- 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:3256
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\19661990
- Size 1.4MB
- SHA256 0c81d73b9dcdb3a66d216efc316b02e947d16b1bdec14c2ffaeea543373bd3dc
- MD5 43964b6b93bb54f79e36cb395a9dd501
- SHA1 f90169083a6fdfe30a6c0abcdcd1346a1e49a1fe
- SHA512 1163cf5dad083c4ea03de1d8ade84e21bb78a0b93f3fb69aa1beeadb8541cefac85b5650f188186c9c581f95cedaff739bde8f2206f099927d63639b37d2d305
- SSDEEP 24576:BjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:BTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T12E658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH