Analysis
- max time kernel
150s - max time network
154s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
10/08/2026, 09:25
Behavioral task
behavioral1
Sample
2026-08-10_ef405c6dea6cbb50d7afae4dc8acc9a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
13 signatures
150 seconds
General
- Target 2026-08-10_ef405c6dea6cbb50d7afae4dc8acc9a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 1.4MB
- Sample260810-ld3xjsvhpc
- SHA256 5d13226093a4ba90ef41eb14f1d8870ff56dfa5f192df46ddf8534ad641a51aa
- MD5 ef405c6dea6cbb50d7afae4dc8acc9a1
- SHA1 61992cfcbf77711b7bb26a783023c0d1d891a820
- SHA512 c3466f7690b20a2c09e8454f02d865f05ebed7182cd92492d9ad2363748932b38c89001402534c7ecd4a43ac7926bb4dc1d7f5b15c16440aaa35f1b3566ba2f1
- SSDEEP 24576:rjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:rTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T19A658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000a00000001136f-2.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x000a00000001136f-2.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 10 IoCs
resource yara_rule behavioral2/memory/2912-0-0x0000000000F40000-0x0000000000FC9000-memory.dmp UPX behavioral2/files/0x000a00000001136f-2.dat UPX behavioral2/memory/6016-3-0x0000000000930000-0x00000000009B9000-memory.dmp UPX behavioral2/memory/2912-18-0x0000000000F40000-0x0000000000FC9000-memory.dmp UPX behavioral2/memory/6016-20-0x0000000000930000-0x00000000009B9000-memory.dmp UPX behavioral2/memory/6016-21-0x0000000000930000-0x00000000009B9000-memory.dmp UPX behavioral2/memory/2912-34-0x0000000000F40000-0x0000000000FC9000-memory.dmp UPX behavioral2/memory/6016-35-0x0000000000930000-0x00000000009B9000-memory.dmp UPX behavioral2/memory/2912-47-0x0000000000F40000-0x0000000000FC9000-memory.dmp UPX behavioral2/memory/2912-54-0x0000000000F40000-0x0000000000FC9000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 6016 440aa988 - 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 2912 2026-08-10_ef405c6dea6cbb50d7afae4dc8acc9a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 2 223.5.5.5 2912 2026-08-10_ef405c6dea6cbb50d7afae4dc8acc9a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 17 114.114.114.114 2912 2026-08-10_ef405c6dea6cbb50d7afae4dc8acc9a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 18 223.5.5.5 2912 2026-08-10_ef405c6dea6cbb50d7afae4dc8acc9a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Drops file in System32 directory 15 IoCs
description ioc Process File created C:\Windows\SysWOW64\440aa988 2026-08-10_ef405c6dea6cbb50d7afae4dc8acc9a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 440aa988 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 440aa988 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 440aa988 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 440aa988 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 440aa988 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 440aa988 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 440aa988 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 440aa988 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 440aa988 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 440aa988 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 440aa988 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 440aa988 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 440aa988 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 440aa988 -
resource yara_rule behavioral2/memory/2912-0-0x0000000000F40000-0x0000000000FC9000-memory.dmp upx behavioral2/files/0x000a00000001136f-2.dat upx behavioral2/memory/6016-3-0x0000000000930000-0x00000000009B9000-memory.dmp upx behavioral2/memory/2912-18-0x0000000000F40000-0x0000000000FC9000-memory.dmp upx behavioral2/memory/6016-20-0x0000000000930000-0x00000000009B9000-memory.dmp upx behavioral2/memory/6016-21-0x0000000000930000-0x00000000009B9000-memory.dmp upx behavioral2/memory/2912-34-0x0000000000F40000-0x0000000000FC9000-memory.dmp upx behavioral2/memory/6016-35-0x0000000000930000-0x00000000009B9000-memory.dmp upx behavioral2/memory/2912-47-0x0000000000F40000-0x0000000000FC9000-memory.dmp upx behavioral2/memory/2912-54-0x0000000000F40000-0x0000000000FC9000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\66ff00 440aa988 File opened for modification C:\Windows\31dac0 2026-08-10_ef405c6dea6cbb50d7afae4dc8acc9a1_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 440aa988 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-08-10_ef405c6dea6cbb50d7afae4dc8acc9a1_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\History\CachePrefix = "Visited:" 440aa988 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 440aa988 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 440aa988 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 440aa988 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 440aa988 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 440aa988 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 440aa988 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 440aa988 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 440aa988 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 6016 440aa988 6016 440aa988 6016 440aa988 6016 440aa988 6016 440aa988 6016 440aa988 6016 440aa988 6016 440aa988 2912 2026-08-10_ef405c6dea6cbb50d7afae4dc8acc9a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 2912 2026-08-10_ef405c6dea6cbb50d7afae4dc8acc9a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 2912 2026-08-10_ef405c6dea6cbb50d7afae4dc8acc9a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 2912 2026-08-10_ef405c6dea6cbb50d7afae4dc8acc9a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 2912 2026-08-10_ef405c6dea6cbb50d7afae4dc8acc9a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 2912 2026-08-10_ef405c6dea6cbb50d7afae4dc8acc9a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 2912 2026-08-10_ef405c6dea6cbb50d7afae4dc8acc9a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 2912 2026-08-10_ef405c6dea6cbb50d7afae4dc8acc9a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 2912 2026-08-10_ef405c6dea6cbb50d7afae4dc8acc9a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 2912 2026-08-10_ef405c6dea6cbb50d7afae4dc8acc9a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 2912 2026-08-10_ef405c6dea6cbb50d7afae4dc8acc9a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 2912 2026-08-10_ef405c6dea6cbb50d7afae4dc8acc9a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 2912 2026-08-10_ef405c6dea6cbb50d7afae4dc8acc9a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 2912 2026-08-10_ef405c6dea6cbb50d7afae4dc8acc9a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2912 2026-08-10_ef405c6dea6cbb50d7afae4dc8acc9a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 2912 2026-08-10_ef405c6dea6cbb50d7afae4dc8acc9a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 6016 440aa988 Token: SeTcbPrivilege 6016 440aa988
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-10_ef405c6dea6cbb50d7afae4dc8acc9a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-10_ef405c6dea6cbb50d7afae4dc8acc9a1_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:2912
-
C:\Windows\Syswow64\440aa988C:\Windows\Syswow64\440aa9881⤵
- 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:6016
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\440aa988
- Size 1.4MB
- SHA256 7c6225bfa8d25d094d68f759481798797f24b1780d50c9529b3c6956ab3cea98
- MD5 daa8d988c3ba019c355f6e3329e60439
- SHA1 174abe70f1a20c151f61e59748e342faa6ec64ad
- SHA512 9adf52f6376e84099b87e413bf20bf04282abe98d2fde5c832975526d470f77e363d453cc3419c9c2218dafcdf5a7801dbf97ba4d0ae58fa7249e564853d6af9
- SSDEEP 24576:ojHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:oTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T13D658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH