Analysis
- max time kernel
149s - max time network
144s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
26/04/2026, 01:41
Behavioral task
behavioral1
Sample
2026-04-26_e5258c7da85386fd171e1b8d11467429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
12 signatures
150 seconds
General
- Target 2026-04-26_e5258c7da85386fd171e1b8d11467429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 768KB
- Sample260426-b37xpady5m
- SHA256 18cdc3664b2ac464cc3c8f472e6fa595f2b7ec8d1b909a5cb6c8fd91f3e8a09a
- MD5 e5258c7da85386fd171e1b8d11467429
- SHA1 70d43e8bd96755017602e04f9e7be9995cb06064
- SHA512 ab62b9ef7a68c086ee576dc9b75e7a5977ff7946552423e67bee02c0fbb4d123f8f13bb85d69209b1ede6fc2a73b19eeacd4317489cf46da6bb604391429918a
- SSDEEP 12288:FqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:FjHPOSOkx2LFscU6UQOJdT
- TLSH T1F6F47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Custom signatureDetection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x001100000002307d-2.dat CryptoLocker_rule2 - Custom signatureDetection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x001100000002307d-2.dat CryptoLocker_set1 - Custom signatureUPX dump on OEP (original entry point) 10 IoCs
resource yara_rule behavioral1/memory/1344-0-0x0000000000590000-0x0000000000619000-memory.dmp UPX behavioral1/files/0x001100000002307d-2.dat UPX behavioral1/memory/4248-4-0x0000000000880000-0x0000000000909000-memory.dmp UPX behavioral1/memory/1344-16-0x0000000000590000-0x0000000000619000-memory.dmp UPX behavioral1/memory/4248-18-0x0000000000880000-0x0000000000909000-memory.dmp UPX behavioral1/memory/4248-24-0x0000000000880000-0x0000000000909000-memory.dmp UPX behavioral1/memory/1344-36-0x0000000000590000-0x0000000000619000-memory.dmp UPX behavioral1/memory/4248-38-0x0000000000880000-0x0000000000909000-memory.dmp UPX behavioral1/memory/1344-52-0x0000000000590000-0x0000000000619000-memory.dmp UPX behavioral1/memory/1344-54-0x0000000000590000-0x0000000000619000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 4248 389ded54 - 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 3 114.114.114.114 1344 2026-04-26_e5258c7da85386fd171e1b8d11467429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 5 223.5.5.5 1344 2026-04-26_e5258c7da85386fd171e1b8d11467429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 28 114.114.114.114 1344 2026-04-26_e5258c7da85386fd171e1b8d11467429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 29 223.5.5.5 1344 2026-04-26_e5258c7da85386fd171e1b8d11467429_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\Local\Microsoft\Windows\INetCache\Content.IE5 389ded54 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 389ded54 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 389ded54 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 389ded54 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 389ded54 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 389ded54 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 389ded54 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 389ded54 File created C:\Windows\SysWOW64\389ded54 2026-04-26_e5258c7da85386fd171e1b8d11467429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 389ded54 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 389ded54 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 389ded54 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 389ded54 -
resource yara_rule behavioral1/memory/1344-0-0x0000000000590000-0x0000000000619000-memory.dmp upx behavioral1/files/0x001100000002307d-2.dat upx behavioral1/memory/4248-4-0x0000000000880000-0x0000000000909000-memory.dmp upx behavioral1/memory/1344-16-0x0000000000590000-0x0000000000619000-memory.dmp upx behavioral1/memory/4248-18-0x0000000000880000-0x0000000000909000-memory.dmp upx behavioral1/memory/4248-24-0x0000000000880000-0x0000000000909000-memory.dmp upx behavioral1/memory/1344-36-0x0000000000590000-0x0000000000619000-memory.dmp upx behavioral1/memory/4248-38-0x0000000000880000-0x0000000000909000-memory.dmp upx behavioral1/memory/1344-52-0x0000000000590000-0x0000000000619000-memory.dmp upx behavioral1/memory/1344-54-0x0000000000590000-0x0000000000619000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\48ba30 389ded54 File opened for modification C:\Windows\170280 2026-04-26_e5258c7da85386fd171e1b8d11467429_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 389ded54 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-04-26_e5258c7da85386fd171e1b8d11467429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - 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 389ded54 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 389ded54 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 389ded54 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 389ded54 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 389ded54 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 389ded54 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 389ded54 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 389ded54 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 389ded54 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4248 389ded54 4248 389ded54 4248 389ded54 4248 389ded54 4248 389ded54 4248 389ded54 4248 389ded54 4248 389ded54 1344 2026-04-26_e5258c7da85386fd171e1b8d11467429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 1344 2026-04-26_e5258c7da85386fd171e1b8d11467429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 1344 2026-04-26_e5258c7da85386fd171e1b8d11467429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 1344 2026-04-26_e5258c7da85386fd171e1b8d11467429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 1344 2026-04-26_e5258c7da85386fd171e1b8d11467429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 1344 2026-04-26_e5258c7da85386fd171e1b8d11467429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1344 2026-04-26_e5258c7da85386fd171e1b8d11467429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 1344 2026-04-26_e5258c7da85386fd171e1b8d11467429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 4248 389ded54 Token: SeTcbPrivilege 4248 389ded54
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-26_e5258c7da85386fd171e1b8d11467429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-26_e5258c7da85386fd171e1b8d11467429_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:1344
-
C:\Windows\Syswow64\389ded54C:\Windows\Syswow64\389ded541⤵
- 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:4248
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\389ded54
- Size 768KB
- SHA256 5d24f0187f07f2979bbca0df1a8808046a022179088d17a42ff0f105bbbe0868
- MD5 b378be20e044e61bd7ee9cd36895a7bc
- SHA1 25b78c72f1065c0f69d4098822534f69909072fb
- SHA512 430506866537f8ba80464c1f5ae0df509f65bcea98026e5353bced9ef8f5e49a229d12b0d532bef742f0497f56cc6a7be9cf471c42c88dc7cd6d394b6608862e
- SSDEEP 12288:2qXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:2jHPOSOkx2LFscU6UQOJdT
- TLSH T173F47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH