Analysis
- max time kernel
150s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
14/07/2026, 03:58
Behavioral task
behavioral1
Sample
2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
12 signatures
150 seconds
General
- Target 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 768KB
- Sample260714-ejlrwsdy4q
- SHA256 5c227c3f6f8eb8bfb37c3c112c7ca6dfb05eb4dd5363434c06d97e6013088b77
- MD5 50f7233e983d4687dffdb44eba71ceda
- SHA1 ff819ab0b78886a17989f3645ae4c4ca6a7e5581
- SHA512 30780ca0de623502677e0a7d5ae2e1d382c1befc3f9010415dd6ad75bcc2777f1f9ab99a1d6d8eae37f8fae33cee1ee0dbf5cafaf6e233c124f783b73dc4bed2
- SSDEEP 12288:iqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:ijHPOSOkx2LFscU6UQOJdT
- TLSH T1E9F47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x001d000000016810-2.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x001d000000016810-2.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 8 IoCs
resource yara_rule behavioral1/memory/440-0-0x0000000000D10000-0x0000000000D99000-memory.dmp UPX behavioral1/files/0x001d000000016810-2.dat UPX behavioral1/memory/5008-3-0x0000000000650000-0x00000000006D9000-memory.dmp UPX behavioral1/memory/440-14-0x0000000000D10000-0x0000000000D99000-memory.dmp UPX behavioral1/memory/5008-17-0x0000000000650000-0x00000000006D9000-memory.dmp UPX behavioral1/memory/440-33-0x0000000000D10000-0x0000000000D99000-memory.dmp UPX behavioral1/memory/5008-34-0x0000000000650000-0x00000000006D9000-memory.dmp UPX behavioral1/memory/440-53-0x0000000000D10000-0x0000000000D99000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 5008 b68ce21 - 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 3 114.114.114.114 440 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 6 223.5.5.5 440 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 32 114.114.114.114 440 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 34 223.5.5.5 440 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 b68ce21 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 b68ce21 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content b68ce21 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 b68ce21 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 b68ce21 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 b68ce21 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies b68ce21 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 b68ce21 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE b68ce21 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft b68ce21 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache b68ce21 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 b68ce21 File created C:\Windows\SysWOW64\b68ce21 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData b68ce21 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 b68ce21 -
resource yara_rule behavioral1/memory/440-0-0x0000000000D10000-0x0000000000D99000-memory.dmp upx behavioral1/files/0x001d000000016810-2.dat upx behavioral1/memory/5008-3-0x0000000000650000-0x00000000006D9000-memory.dmp upx behavioral1/memory/440-14-0x0000000000D10000-0x0000000000D99000-memory.dmp upx behavioral1/memory/5008-17-0x0000000000650000-0x00000000006D9000-memory.dmp upx behavioral1/memory/440-33-0x0000000000D10000-0x0000000000D99000-memory.dmp upx behavioral1/memory/5008-34-0x0000000000650000-0x00000000006D9000-memory.dmp upx behavioral1/memory/440-53-0x0000000000D10000-0x0000000000D99000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\55bd20 b68ce21 File opened for modification C:\Windows\78870 2026-07-14_50f7233e983d4687dffdb44eba71ceda_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 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b68ce21 - 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" b68ce21 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" b68ce21 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" b68ce21 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" b68ce21 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ b68ce21 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" b68ce21 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" b68ce21 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing b68ce21 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix b68ce21 - Suspicious behavior: EnumeratesProcesses 18 IoCs
pid Process 5008 b68ce21 5008 b68ce21 5008 b68ce21 5008 b68ce21 5008 b68ce21 5008 b68ce21 5008 b68ce21 5008 b68ce21 5008 b68ce21 5008 b68ce21 5008 b68ce21 5008 b68ce21 440 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 440 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 440 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 440 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 440 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 440 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 440 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 440 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 5008 b68ce21 Token: SeTcbPrivilege 5008 b68ce21
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-14_50f7233e983d4687dffdb44eba71ceda_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:440
-
C:\Windows\Syswow64\b68ce21C:\Windows\Syswow64\b68ce211⤵
- 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:5008
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\b68ce21
- Size 768KB
- SHA256 c28a2855902825bbb0d04075cc8417d647b06349ad1bab63cdf716eca3974ee5
- MD5 15edc20e17d95d94782c8bde7ff8e579
- SHA1 67bf0f5ad85ad5951c55dff0c6f6275d0d987105
- SHA512 97cd6f438f9acdd90617ead089d9b218e01d65bf8fa60ff75294419537e6f1a32b75069eec26123b4666c82fe673f63ec29dded12aeba27fa90911177ada0d57
- SSDEEP 12288:2qXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:2jHPOSOkx2LFscU6UQOJdT
- TLSH T172F47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH