Analysis
- max time kernel
150s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
18/08/2026, 16:49
Behavioral task
behavioral1
Sample
2026-08-18_c99627f2aced87584af7b0795c026655_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
12 signatures
150 seconds
General
- Target 2026-08-18_c99627f2aced87584af7b0795c026655_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 1.4MB
- Sample260818-vb5g2aac68
- SHA256 1d6332eb64a7b0acb3432f411ce1ff9c8ade18bf4e7378822ee7ae4884cb30e0
- MD5 c99627f2aced87584af7b0795c026655
- SHA1 5aba44c5a7f9e0aba15f755a19d2dbe3ce058eb7
- SHA512 b6e8cf814957b6067cf7bc0bb19e33d996f8b08fcea7e5f4511de748d9647deb0726381c70cbd9b9fe17ceda9f28b17fd4d22d794112d782c86ea871e5440207
- SSDEEP 24576:4jHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:4TGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T16E658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000900000001b1c8-2.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x000900000001b1c8-2.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 10 IoCs
resource yara_rule behavioral2/memory/5148-0-0x0000000000950000-0x00000000009D9000-memory.dmp UPX behavioral2/files/0x000900000001b1c8-2.dat UPX behavioral2/memory/1308-3-0x0000000000850000-0x00000000008D9000-memory.dmp UPX behavioral2/memory/5148-18-0x0000000000950000-0x00000000009D9000-memory.dmp UPX behavioral2/memory/1308-20-0x0000000000850000-0x00000000008D9000-memory.dmp UPX behavioral2/memory/1308-24-0x0000000000850000-0x00000000008D9000-memory.dmp UPX behavioral2/memory/5148-39-0x0000000000950000-0x00000000009D9000-memory.dmp UPX behavioral2/memory/1308-40-0x0000000000850000-0x00000000008D9000-memory.dmp UPX behavioral2/memory/1308-42-0x0000000000850000-0x00000000008D9000-memory.dmp UPX behavioral2/memory/5148-43-0x0000000000950000-0x00000000009D9000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 1308 50ce64c7 - 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 19 114.114.114.114 5148 2026-08-18_c99627f2aced87584af7b0795c026655_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 20 223.5.5.5 5148 2026-08-18_c99627f2aced87584af7b0795c026655_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 1 114.114.114.114 5148 2026-08-18_c99627f2aced87584af7b0795c026655_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 4 223.5.5.5 5148 2026-08-18_c99627f2aced87584af7b0795c026655_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Drops file in System32 directory 15 IoCs
description ioc Process File created C:\Windows\SysWOW64\50ce64c7 2026-08-18_c99627f2aced87584af7b0795c026655_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 50ce64c7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 50ce64c7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 50ce64c7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 50ce64c7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 50ce64c7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 50ce64c7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 50ce64c7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 50ce64c7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 50ce64c7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 50ce64c7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 50ce64c7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 50ce64c7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 50ce64c7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 50ce64c7 -
resource yara_rule behavioral2/memory/5148-0-0x0000000000950000-0x00000000009D9000-memory.dmp upx behavioral2/files/0x000900000001b1c8-2.dat upx behavioral2/memory/1308-3-0x0000000000850000-0x00000000008D9000-memory.dmp upx behavioral2/memory/5148-18-0x0000000000950000-0x00000000009D9000-memory.dmp upx behavioral2/memory/1308-20-0x0000000000850000-0x00000000008D9000-memory.dmp upx behavioral2/memory/1308-24-0x0000000000850000-0x00000000008D9000-memory.dmp upx behavioral2/memory/5148-39-0x0000000000950000-0x00000000009D9000-memory.dmp upx behavioral2/memory/1308-40-0x0000000000850000-0x00000000008D9000-memory.dmp upx behavioral2/memory/1308-42-0x0000000000850000-0x00000000008D9000-memory.dmp upx behavioral2/memory/5148-43-0x0000000000950000-0x00000000009D9000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\5822b8 2026-08-18_c99627f2aced87584af7b0795c026655_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\1664b8 50ce64c7 - 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 2026-08-18_c99627f2aced87584af7b0795c026655_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 50ce64c7 - 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\Cookies\CachePrefix = "Cookie:" 50ce64c7 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 50ce64c7 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 50ce64c7 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 50ce64c7 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 50ce64c7 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 50ce64c7 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 50ce64c7 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 50ce64c7 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 50ce64c7 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 1308 50ce64c7 1308 50ce64c7 1308 50ce64c7 1308 50ce64c7 1308 50ce64c7 1308 50ce64c7 1308 50ce64c7 1308 50ce64c7 5148 2026-08-18_c99627f2aced87584af7b0795c026655_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 5148 2026-08-18_c99627f2aced87584af7b0795c026655_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 5148 2026-08-18_c99627f2aced87584af7b0795c026655_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 5148 2026-08-18_c99627f2aced87584af7b0795c026655_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 5148 2026-08-18_c99627f2aced87584af7b0795c026655_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 5148 2026-08-18_c99627f2aced87584af7b0795c026655_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 5148 2026-08-18_c99627f2aced87584af7b0795c026655_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 5148 2026-08-18_c99627f2aced87584af7b0795c026655_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 5148 2026-08-18_c99627f2aced87584af7b0795c026655_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 5148 2026-08-18_c99627f2aced87584af7b0795c026655_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 5148 2026-08-18_c99627f2aced87584af7b0795c026655_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 5148 2026-08-18_c99627f2aced87584af7b0795c026655_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 5148 2026-08-18_c99627f2aced87584af7b0795c026655_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 5148 2026-08-18_c99627f2aced87584af7b0795c026655_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 5148 2026-08-18_c99627f2aced87584af7b0795c026655_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 5148 2026-08-18_c99627f2aced87584af7b0795c026655_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 1308 50ce64c7 Token: SeTcbPrivilege 1308 50ce64c7
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-18_c99627f2aced87584af7b0795c026655_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-18_c99627f2aced87584af7b0795c026655_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:5148
-
C:\Windows\Syswow64\50ce64c7C:\Windows\Syswow64\50ce64c71⤵
- 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:1308
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\50ce64c7
- Size 1.4MB
- SHA256 fb298a4c734a3eb8215d2a0ef0d44ec4ef192256248d9ed8a6c6d9364643f5ee
- MD5 419a8ed95fb55573692b719c27aaabe0
- SHA1 56be9b59e81326fbc5c44bf6f5134a805a6d1253
- SHA512 53a1903d3128ffe5c9a96f429b66e006ec566cf528fdbe855dbeb6d520ce49cb406392704bf84f33e75fa04d9c10fd22e4756efd37f9d8468620979d2541d251
- SSDEEP 24576:fjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:fTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T18C658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH