Analysis
- max time kernel
149s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
11/05/2026, 16:35
Behavioral task
behavioral1
Sample
2026-05-11_a71a7e1a52c28d899646d97da4479ceb_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe
Resource
win10v2004-20250619-en
windows10-2004-x64
13 signatures
150 seconds
General
- Target 2026-05-11_a71a7e1a52c28d899646d97da4479ceb_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe
- Size 1022KB
- Sample260511-t33bbaas8k
- SHA256 53511f61059d31c385ba268ea5bf6dfbe6a26131aaed2c8161f72e7175e202e3
- MD5 a71a7e1a52c28d899646d97da4479ceb
- SHA1 af8142b16a7cd52cc03eb4920b718f17481353a8
- SHA512 82942133836b4caafc16795b32a77c7a9997c08b069e6d14038f62b669aeb32da43937da10594e1ea5426ba84f7dbf45a34cf92923fd587611ee68ee184e8aa5
- SSDEEP 12288:4SvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/LikGU5rCOTeidT:TvO2xJKRw2kOkx2LFRvcU6UQOJdT
- TLSH T113256B31A681C036D5B34571C6FA4BBBA9747D21531165CBA3C47A2A2FB37D2BA3130E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000900000002a94d-2.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x000900000002a94d-2.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 6 IoCs
resource yara_rule behavioral2/memory/3868-0-0x0000000000450000-0x00000000004DC000-memory.dmp UPX behavioral2/files/0x000900000002a94d-2.dat UPX behavioral2/memory/3120-4-0x0000000000DB0000-0x0000000000E3C000-memory.dmp UPX behavioral2/memory/3868-15-0x0000000000450000-0x00000000004DC000-memory.dmp UPX behavioral2/memory/3120-17-0x0000000000DB0000-0x0000000000E3C000-memory.dmp UPX behavioral2/memory/3120-40-0x0000000000DB0000-0x0000000000E3C000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 3120 cf50f540 - 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 3868 2026-05-11_a71a7e1a52c28d899646d97da4479ceb_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Destination IP 2 223.5.5.5 3868 2026-05-11_a71a7e1a52c28d899646d97da4479ceb_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Destination IP 10 114.114.114.114 3868 2026-05-11_a71a7e1a52c28d899646d97da4479ceb_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Destination IP 11 223.5.5.5 3868 2026-05-11_a71a7e1a52c28d899646d97da4479ceb_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe - Drops file in System32 directory 17 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 cf50f540 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 cf50f540 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE cf50f540 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content cf50f540 File created C:\Windows\SysWOW64\cf50f540 2026-05-11_a71a7e1a52c28d899646d97da4479ceb_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies cf50f540 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft cf50f540 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData cf50f540 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C cf50f540 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 cf50f540 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 cf50f540 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C cf50f540 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 cf50f540 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache cf50f540 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 cf50f540 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 cf50f540 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 cf50f540 -
resource yara_rule behavioral2/memory/3868-0-0x0000000000450000-0x00000000004DC000-memory.dmp upx behavioral2/files/0x000900000002a94d-2.dat upx behavioral2/memory/3120-4-0x0000000000DB0000-0x0000000000E3C000-memory.dmp upx behavioral2/memory/3868-15-0x0000000000450000-0x00000000004DC000-memory.dmp upx behavioral2/memory/3120-17-0x0000000000DB0000-0x0000000000E3C000-memory.dmp upx behavioral2/memory/3120-40-0x0000000000DB0000-0x0000000000E3C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\356a60 cf50f540 File opened for modification C:\Windows\4238b8 2026-05-11_a71a7e1a52c28d899646d97da4479ceb_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_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 2026-05-11_a71a7e1a52c28d899646d97da4479ceb_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cf50f540 - 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:" cf50f540 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" cf50f540 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" cf50f540 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix cf50f540 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ cf50f540 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" cf50f540 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" cf50f540 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" cf50f540 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing cf50f540 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 3120 cf50f540 3120 cf50f540 3120 cf50f540 3120 cf50f540 3120 cf50f540 3120 cf50f540 3120 cf50f540 3120 cf50f540 3868 2026-05-11_a71a7e1a52c28d899646d97da4479ceb_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe 3868 2026-05-11_a71a7e1a52c28d899646d97da4479ceb_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe 3868 2026-05-11_a71a7e1a52c28d899646d97da4479ceb_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe 3868 2026-05-11_a71a7e1a52c28d899646d97da4479ceb_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe 3868 2026-05-11_a71a7e1a52c28d899646d97da4479ceb_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe 3868 2026-05-11_a71a7e1a52c28d899646d97da4479ceb_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3868 2026-05-11_a71a7e1a52c28d899646d97da4479ceb_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Token: SeTcbPrivilege 3868 2026-05-11_a71a7e1a52c28d899646d97da4479ceb_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Token: SeDebugPrivilege 3120 cf50f540 Token: SeTcbPrivilege 3120 cf50f540
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-11_a71a7e1a52c28d899646d97da4479ceb_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-11_a71a7e1a52c28d899646d97da4479ceb_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_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:3868
-
C:\Windows\Syswow64\cf50f540C:\Windows\Syswow64\cf50f5401⤵
- 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:3120
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\cf50f540
- Size 1022KB
- SHA256 bf230d252a1fcf96c73d584b7ae1192e52b137c7ff467fa51f1f0fd56cdbcf10
- MD5 af02c41be8356d44b941f28b5886fd01
- SHA1 06c44151e8f6bd74f66d97960305d7d8de2a3c52
- SHA512 2f4beb16083e47477c38e9eadd40a55c4fda53e6fd82a1a9632e79793b4be6f1041ba160b11c36b5baf7cd91298d2f72c0598816c86f32c66b3c65c01ea2555f
- SSDEEP 12288:fSvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/LikGU5rCOTeidT:qvO2xJKRw2kOkx2LFRvcU6UQOJdT
- TLSH T1B2256B31A681C036D5B34571C6FA4BBBA9747D21531165CBA3C47A2A2FB37D2BA3130E
- MD5 SHA1 SHA512 SSDEEP TLSH