Analysis
- max time kernel
149s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
02/10/2026, 07:05
Behavioral task
behavioral1
Sample
2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe
Resource
win10v2004-20260911-en
15 signatures
150 seconds
General
- Target 2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe
- Size 1.7MB
- Sample261002-hwjpvaxtaz
- SHA256 ad0fd62b4a3d1dae95b6ee066844fdc14b1aad531ef7f8e90feee837e4cb2d61
- MD5 a3b88fd47234b115edaa8544613641b4
- SHA1 5e3d3fc661b7bf956c44536d108098dc183be93b
- SHA512 31555958638651c974a9af8aa1e05c82cfc6e502504f618ea1909708112c3969ac18da50c9125bbf6bf52e8400db5ab749fb05a7f8f20e5e3e31b9ff09a02684
- SSDEEP 24576:JvO2xJKRw2kOkx2LFRvcU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:JHHKe2WQX56/OJdJCXDrsOFZMjHfUr
- TLSH T1EE858D31AAC04132E2B3867585FA56F6A9257C222721E5CF62C57B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detects Stealc stealer Version 3 1 IoCs
resource yara_rule behavioral1/memory/1064-18-0x0000000000900000-0x000000000098C000-memory.dmp family_stealc_v3 - Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x0008000000024325-2.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x0008000000024325-2.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 6 IoCs
resource yara_rule behavioral1/memory/1064-0-0x0000000000900000-0x000000000098C000-memory.dmp UPX behavioral1/files/0x0008000000024325-2.dat UPX behavioral1/memory/1832-3-0x0000000000B50000-0x0000000000BDC000-memory.dmp UPX behavioral1/memory/1064-18-0x0000000000900000-0x000000000098C000-memory.dmp UPX behavioral1/memory/1832-19-0x0000000000B50000-0x0000000000BDC000-memory.dmp UPX behavioral1/memory/1832-38-0x0000000000B50000-0x0000000000BDC000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 1832 4f81cd6c - Unexpected DNS network traffic destination 20 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 42 114.114.114.114 1064 2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Destination IP 188 114.114.114.114 1064 2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Destination IP 226 114.114.114.114 1064 2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Destination IP 227 223.5.5.5 1064 2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Destination IP 381 114.114.114.114 1064 2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Destination IP 382 223.5.5.5 1064 2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Destination IP 412 114.114.114.114 1064 2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Destination IP 300 223.5.5.5 1064 2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Destination IP 335 223.5.5.5 1064 2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Destination IP 473 114.114.114.114 1064 2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Destination IP 299 114.114.114.114 1064 2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Destination IP 4 223.5.5.5 1064 2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Destination IP 121 114.114.114.114 1832 4f81cd6c Destination IP 191 223.5.5.5 1064 2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Destination IP 413 223.5.5.5 1064 2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Destination IP 474 223.5.5.5 1064 2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Destination IP 43 223.5.5.5 1064 2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Destination IP 122 223.5.5.5 1064 2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Destination IP 333 114.114.114.114 1064 2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Destination IP 3 114.114.114.114 1064 2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 4f81cd6c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 4f81cd6c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 4f81cd6c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 4f81cd6c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 4f81cd6c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 4f81cd6c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 4f81cd6c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 4f81cd6c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 4f81cd6c File created C:\Windows\SysWOW64\4f81cd6c 2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 4f81cd6c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 4f81cd6c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 4f81cd6c -
resource yara_rule behavioral1/memory/1064-0-0x0000000000900000-0x000000000098C000-memory.dmp upx behavioral1/files/0x0008000000024325-2.dat upx behavioral1/memory/1832-3-0x0000000000B50000-0x0000000000BDC000-memory.dmp upx behavioral1/memory/1064-18-0x0000000000900000-0x000000000098C000-memory.dmp upx behavioral1/memory/1832-19-0x0000000000B50000-0x0000000000BDC000-memory.dmp upx behavioral1/memory/1832-38-0x0000000000B50000-0x0000000000BDC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\1f5d50 4f81cd6c File opened for modification C:\Windows\123750 2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe - Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain 2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname 4f81cd6c Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain 4f81cd6c Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname 2026-10-01_a3b88fd47234b115edaa8544613641b4_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 2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 4f81cd6c - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 4f81cd6c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 4f81cd6c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 4f81cd6c Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 4f81cd6c Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 4f81cd6c Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 4f81cd6c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 4f81cd6c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 4f81cd6c Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 4f81cd6c - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 1832 4f81cd6c 1832 4f81cd6c 1832 4f81cd6c 1832 4f81cd6c 1832 4f81cd6c 1832 4f81cd6c 1832 4f81cd6c 1832 4f81cd6c 1064 2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe 1064 2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe 1064 2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe 1064 2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe 1064 2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe 1064 2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1064 2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Token: SeTcbPrivilege 1064 2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Token: SeDebugPrivilege 1832 4f81cd6c Token: SeTcbPrivilege 1832 4f81cd6c
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-10-01_a3b88fd47234b115edaa8544613641b4_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-10-01_a3b88fd47234b115edaa8544613641b4_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
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1064
-
C:\Windows\Syswow64\4f81cd6cC:\Windows\Syswow64\4f81cd6c1⤵
- Executes dropped EXE
- Unexpected DNS network traffic destination
- Drops file in System32 directory
- Drops file in Windows directory
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1832
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\4f81cd6c
- Size 1.7MB
- SHA256 e485be6b500c42ccbf58895349911e1a24a925800b2840739581ca7a168f0ee1
- MD5 5aaea67ac07880d8b8165b472b5792d9
- SHA1 2406a543ec07cd1ab38d4f46e6b4edb903fbdcd9
- SHA512 dd296c0574c8d206c1efda0bb547388a4e136744d4676f69cb18caf6cce142643eb396b5ac888eab68943e3e20560b015a631e1b9c91292e1b3db4dcbfeb7c33
- SSDEEP 24576:lvO2xJKRw2kOkx2LFRvcU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:lHHKe2WQX56/OJdJCXDrsOFZMjHfUr
- TLSH T1AE858D31AAC04132E2B3867585FA56F6A9257C222721E5CF62C57B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH