Analysis
- max time kernel
148s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-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 behavioral2/files/0x000c00000001b87d-2.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x000c00000001b87d-2.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 10 IoCs
resource yara_rule behavioral2/memory/4776-0-0x00000000003D0000-0x0000000000459000-memory.dmp UPX behavioral2/files/0x000c00000001b87d-2.dat UPX behavioral2/memory/4784-3-0x0000000000350000-0x00000000003D9000-memory.dmp UPX behavioral2/memory/4776-18-0x00000000003D0000-0x0000000000459000-memory.dmp UPX behavioral2/memory/4784-20-0x0000000000350000-0x00000000003D9000-memory.dmp UPX behavioral2/memory/4784-24-0x0000000000350000-0x00000000003D9000-memory.dmp UPX behavioral2/memory/4776-39-0x00000000003D0000-0x0000000000459000-memory.dmp UPX behavioral2/memory/4784-40-0x0000000000350000-0x00000000003D9000-memory.dmp UPX behavioral2/memory/4784-44-0x0000000000350000-0x00000000003D9000-memory.dmp UPX behavioral2/memory/4776-49-0x00000000003D0000-0x0000000000459000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 4784 bc4ca1fa - 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 1 114.114.114.114 4776 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 2 223.5.5.5 4776 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 26 114.114.114.114 4776 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 27 223.5.5.5 4776 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 51 114.114.114.114 4784 bc4ca1fa Destination IP 52 223.5.5.5 4776 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Drops file in System32 directory 15 IoCs
description ioc Process File created C:\Windows\SysWOW64\bc4ca1fa 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft bc4ca1fa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 bc4ca1fa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 bc4ca1fa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 bc4ca1fa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE bc4ca1fa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies bc4ca1fa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 bc4ca1fa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData bc4ca1fa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 bc4ca1fa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 bc4ca1fa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache bc4ca1fa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content bc4ca1fa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 bc4ca1fa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 bc4ca1fa -
resource yara_rule behavioral2/memory/4776-0-0x00000000003D0000-0x0000000000459000-memory.dmp upx behavioral2/files/0x000c00000001b87d-2.dat upx behavioral2/memory/4784-3-0x0000000000350000-0x00000000003D9000-memory.dmp upx behavioral2/memory/4776-18-0x00000000003D0000-0x0000000000459000-memory.dmp upx behavioral2/memory/4784-20-0x0000000000350000-0x00000000003D9000-memory.dmp upx behavioral2/memory/4784-24-0x0000000000350000-0x00000000003D9000-memory.dmp upx behavioral2/memory/4776-39-0x00000000003D0000-0x0000000000459000-memory.dmp upx behavioral2/memory/4784-40-0x0000000000350000-0x00000000003D9000-memory.dmp upx behavioral2/memory/4784-44-0x0000000000350000-0x00000000003D9000-memory.dmp upx behavioral2/memory/4776-49-0x00000000003D0000-0x0000000000459000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\51c450 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\51e760 bc4ca1fa - 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 bc4ca1fa - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" bc4ca1fa Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" bc4ca1fa Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing bc4ca1fa Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" bc4ca1fa Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" bc4ca1fa Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" bc4ca1fa Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" bc4ca1fa Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix bc4ca1fa Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ bc4ca1fa - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 4784 bc4ca1fa 4784 bc4ca1fa 4784 bc4ca1fa 4784 bc4ca1fa 4784 bc4ca1fa 4784 bc4ca1fa 4784 bc4ca1fa 4784 bc4ca1fa 4776 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4776 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4776 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4776 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4776 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4776 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4776 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4776 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4776 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4776 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4776 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4776 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4776 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4776 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4776 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 4776 2026-07-14_50f7233e983d4687dffdb44eba71ceda_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 4784 bc4ca1fa Token: SeTcbPrivilege 4784 bc4ca1fa
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:4776
-
C:\Windows\Syswow64\bc4ca1faC:\Windows\Syswow64\bc4ca1fa1⤵
- Executes dropped EXE
- Unexpected DNS network traffic destination
- 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:4784
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\bc4ca1fa
- Size 768KB
- SHA256 ee566b2a38e6873bb2476377d0cf93c9dfa285315e8e49b7f0c8c296e018ed71
- MD5 9ab6bac74199df90748eed917a0534f1
- SHA1 544c2be1017b840d01afb6a6d50d069871f93071
- SHA512 d513e0c33d4978adddad7947438e24fc57fb1d419598998fff754a044b78c2842765c862fa842dc4cdc64a8ae2258abb24e2c2c12fec081e8fe741755e05287a
- SSDEEP 12288:mqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:mjHPOSOkx2LFscU6UQOJdT
- TLSH T19AF47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH