Analysis
- max time kernel
150s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
05/08/2026, 00:54
Behavioral task
behavioral1
Sample
2026-08-04_5ab2c9e70aeef93e96a5d3866613a860_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
12 signatures
150 seconds
General
- Target 2026-08-04_5ab2c9e70aeef93e96a5d3866613a860_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 768KB
- Sample260805-a87y7sbc46
- SHA256 cdfd7aef95b5203b999baf3e8098131f0ceb1371389ac73036931d56c8f0a6eb
- MD5 5ab2c9e70aeef93e96a5d3866613a860
- SHA1 57ef805449b00f23bcd7b3f63c40bca288ed6d49
- SHA512 30cf7056475c3600354bd1416c071832361d49f817491e4e889ef7ebdac69e1f2c358ca55ef40bf5862adc767816bec3980c7adac6d9cd224dcc4bd3de7b7415
- SSDEEP 12288:iqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:ijHPOSOkx2LFscU6UQOJdT
- TLSH T191F47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000700000001b853-4.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x000700000001b853-4.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 10 IoCs
resource yara_rule behavioral2/memory/4628-0-0x0000000000210000-0x0000000000299000-memory.dmp UPX behavioral2/files/0x000700000001b853-4.dat UPX behavioral2/memory/1476-3-0x00000000007E0000-0x0000000000869000-memory.dmp UPX behavioral2/memory/4628-10-0x0000000000210000-0x0000000000299000-memory.dmp UPX behavioral2/memory/1476-12-0x00000000007E0000-0x0000000000869000-memory.dmp UPX behavioral2/memory/4628-39-0x0000000000210000-0x0000000000299000-memory.dmp UPX behavioral2/memory/1476-40-0x00000000007E0000-0x0000000000869000-memory.dmp UPX behavioral2/memory/1476-42-0x00000000007E0000-0x0000000000869000-memory.dmp UPX behavioral2/memory/4628-47-0x0000000000210000-0x0000000000299000-memory.dmp UPX behavioral2/memory/4628-49-0x0000000000210000-0x0000000000299000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 1476 ca1bd9a5 - 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 4628 2026-08-04_5ab2c9e70aeef93e96a5d3866613a860_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 4 223.5.5.5 4628 2026-08-04_5ab2c9e70aeef93e96a5d3866613a860_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 15 114.114.114.114 4628 2026-08-04_5ab2c9e70aeef93e96a5d3866613a860_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 16 223.5.5.5 4628 2026-08-04_5ab2c9e70aeef93e96a5d3866613a860_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 ca1bd9a5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies ca1bd9a5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData ca1bd9a5 File created C:\Windows\SysWOW64\ca1bd9a5 2026-08-04_5ab2c9e70aeef93e96a5d3866613a860_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE ca1bd9a5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 ca1bd9a5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 ca1bd9a5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 ca1bd9a5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 ca1bd9a5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft ca1bd9a5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 ca1bd9a5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content ca1bd9a5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 ca1bd9a5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 ca1bd9a5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 ca1bd9a5 -
resource yara_rule behavioral2/memory/4628-0-0x0000000000210000-0x0000000000299000-memory.dmp upx behavioral2/files/0x000700000001b853-4.dat upx behavioral2/memory/1476-3-0x00000000007E0000-0x0000000000869000-memory.dmp upx behavioral2/memory/4628-10-0x0000000000210000-0x0000000000299000-memory.dmp upx behavioral2/memory/1476-12-0x00000000007E0000-0x0000000000869000-memory.dmp upx behavioral2/memory/4628-39-0x0000000000210000-0x0000000000299000-memory.dmp upx behavioral2/memory/1476-40-0x00000000007E0000-0x0000000000869000-memory.dmp upx behavioral2/memory/1476-42-0x00000000007E0000-0x0000000000869000-memory.dmp upx behavioral2/memory/4628-47-0x0000000000210000-0x0000000000299000-memory.dmp upx behavioral2/memory/4628-49-0x0000000000210000-0x0000000000299000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\194508 ca1bd9a5 File opened for modification C:\Windows\4f3ba8 2026-08-04_5ab2c9e70aeef93e96a5d3866613a860_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 ca1bd9a5 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-08-04_5ab2c9e70aeef93e96a5d3866613a860_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 ca1bd9a5 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" ca1bd9a5 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ ca1bd9a5 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" ca1bd9a5 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" ca1bd9a5 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" ca1bd9a5 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing ca1bd9a5 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" ca1bd9a5 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" ca1bd9a5 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 1476 ca1bd9a5 1476 ca1bd9a5 1476 ca1bd9a5 1476 ca1bd9a5 1476 ca1bd9a5 1476 ca1bd9a5 1476 ca1bd9a5 1476 ca1bd9a5 4628 2026-08-04_5ab2c9e70aeef93e96a5d3866613a860_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4628 2026-08-04_5ab2c9e70aeef93e96a5d3866613a860_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4628 2026-08-04_5ab2c9e70aeef93e96a5d3866613a860_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4628 2026-08-04_5ab2c9e70aeef93e96a5d3866613a860_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4628 2026-08-04_5ab2c9e70aeef93e96a5d3866613a860_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4628 2026-08-04_5ab2c9e70aeef93e96a5d3866613a860_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4628 2026-08-04_5ab2c9e70aeef93e96a5d3866613a860_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4628 2026-08-04_5ab2c9e70aeef93e96a5d3866613a860_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4628 2026-08-04_5ab2c9e70aeef93e96a5d3866613a860_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4628 2026-08-04_5ab2c9e70aeef93e96a5d3866613a860_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4628 2026-08-04_5ab2c9e70aeef93e96a5d3866613a860_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4628 2026-08-04_5ab2c9e70aeef93e96a5d3866613a860_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4628 2026-08-04_5ab2c9e70aeef93e96a5d3866613a860_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4628 2026-08-04_5ab2c9e70aeef93e96a5d3866613a860_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4628 2026-08-04_5ab2c9e70aeef93e96a5d3866613a860_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 4628 2026-08-04_5ab2c9e70aeef93e96a5d3866613a860_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 1476 ca1bd9a5 Token: SeTcbPrivilege 1476 ca1bd9a5
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-04_5ab2c9e70aeef93e96a5d3866613a860_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-04_5ab2c9e70aeef93e96a5d3866613a860_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:4628
-
C:\Windows\Syswow64\ca1bd9a5C:\Windows\Syswow64\ca1bd9a51⤵
- 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:1476
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\ca1bd9a5
- Size 768KB
- SHA256 8bbd296640741c8abdf0c6b2e347826ab10e45fd52615badc8055dc37657d61a
- MD5 7e972c3a9159f5492e58b716a52bf07b
- SHA1 96cea218e2efa77433bc053ae4d3f5048245311d
- SHA512 a3d72532f07853b9b070eba21f185bc6668da658a50c63e2b5210ee129c746c9b6d70eb150f21656558297b92af3ceaba6d52bab257c7ed51fa82b38f0b069bc
- SSDEEP 12288:cqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:cjHPOSOkx2LFscU6UQOJdT
- TLSH T168F47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH