Analysis
- max time kernel
149s - max time network
146s - 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, 02:54
Behavioral task
behavioral1
Sample
2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
12 signatures
150 seconds
General
- Target 2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 1.4MB
- Sample260418-dec4hsfv2v
- SHA256 e777d01248453c09855066fca114265632b91f8f066c8986f47b2f022cacd812
- MD5 656cac69c60dcca605d526f6c26412a1
- SHA1 f7cf21aba02b59454b4da8c73a23a521abbd3359
- SHA512 c7f7598161f57cfd69c6de9efd1044232aca72aa0c62544e31b6ef45915e70c36ad4b66646fe38234b4487cb178b1c5085dc0f2b5d843d991bf5c4c4899de456
- SSDEEP 24576:ZjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:ZTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T135658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x001d00000002b2a0-2.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x001d00000002b2a0-2.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 10 IoCs
resource yara_rule behavioral2/memory/892-0-0x0000000000FD0000-0x0000000001059000-memory.dmp UPX behavioral2/files/0x001d00000002b2a0-2.dat UPX behavioral2/memory/1892-4-0x0000000000220000-0x00000000002A9000-memory.dmp UPX behavioral2/memory/892-10-0x0000000000FD0000-0x0000000001059000-memory.dmp UPX behavioral2/memory/1892-13-0x0000000000220000-0x00000000002A9000-memory.dmp UPX behavioral2/memory/1892-25-0x0000000000220000-0x00000000002A9000-memory.dmp UPX behavioral2/memory/892-35-0x0000000000FD0000-0x0000000001059000-memory.dmp UPX behavioral2/memory/1892-37-0x0000000000220000-0x00000000002A9000-memory.dmp UPX behavioral2/memory/892-49-0x0000000000FD0000-0x0000000001059000-memory.dmp UPX behavioral2/memory/892-63-0x0000000000FD0000-0x0000000001059000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 1892 53a6fef4 - 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 1 114.114.114.114 892 2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 2 223.5.5.5 892 2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 13 114.114.114.114 892 2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 14 223.5.5.5 892 2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Drops file in System32 directory 15 IoCs
description ioc Process File created C:\Windows\SysWOW64\53a6fef4 2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 53a6fef4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 53a6fef4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 53a6fef4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 53a6fef4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 53a6fef4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 53a6fef4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 53a6fef4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 53a6fef4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 53a6fef4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 53a6fef4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 53a6fef4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 53a6fef4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 53a6fef4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 53a6fef4 -
resource yara_rule behavioral2/memory/892-0-0x0000000000FD0000-0x0000000001059000-memory.dmp upx behavioral2/files/0x001d00000002b2a0-2.dat upx behavioral2/memory/1892-4-0x0000000000220000-0x00000000002A9000-memory.dmp upx behavioral2/memory/892-10-0x0000000000FD0000-0x0000000001059000-memory.dmp upx behavioral2/memory/1892-13-0x0000000000220000-0x00000000002A9000-memory.dmp upx behavioral2/memory/1892-25-0x0000000000220000-0x00000000002A9000-memory.dmp upx behavioral2/memory/892-35-0x0000000000FD0000-0x0000000001059000-memory.dmp upx behavioral2/memory/1892-37-0x0000000000220000-0x00000000002A9000-memory.dmp upx behavioral2/memory/892-49-0x0000000000FD0000-0x0000000001059000-memory.dmp upx behavioral2/memory/892-63-0x0000000000FD0000-0x0000000001059000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\206448 53a6fef4 File opened for modification C:\Windows\f4578 2026-04-18_656cac69c60dcca605d526f6c26412a1_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_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 53a6fef4 - 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" 53a6fef4 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 53a6fef4 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 53a6fef4 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 53a6fef4 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 53a6fef4 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 53a6fef4 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 53a6fef4 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 53a6fef4 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 53a6fef4 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 1892 53a6fef4 1892 53a6fef4 1892 53a6fef4 1892 53a6fef4 1892 53a6fef4 1892 53a6fef4 1892 53a6fef4 1892 53a6fef4 892 2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 892 2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 892 2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 892 2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 892 2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 892 2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 892 2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 892 2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 1892 53a6fef4 Token: SeTcbPrivilege 1892 53a6fef4
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-18_656cac69c60dcca605d526f6c26412a1_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:892
-
C:\Windows\Syswow64\53a6fef4C:\Windows\Syswow64\53a6fef41⤵
- 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:1892
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\53a6fef4
- Size 1.4MB
- SHA256 ab793836365a54831e12de4ffdb2dd0cb1c214a79d2f061256a9a810883a4a25
- MD5 dc48a45d0553f9a5312313ae3f90fcf6
- SHA1 ae9e31c8e1c9682c480daf7158f2cf25a85bbd9c
- SHA512 55ee38de0e8f4ce415dd8b19a1722036f6f2bfffe659256fbfa86e8a544b841f7f17648f5a717e2c159fa3998891b2458842440b142df3e6133d643033c87bdd
- SSDEEP 24576:2jHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:2TGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T1B1658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH