Analysis
- max time kernel
150s - max time network
154s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
01/10/2026, 09:52
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe
Resource
win10v2004-20260911-en
windows10-2004-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe
Resource
win11ltsc2024-20260911-en
windows11-ltsc_2024-x64
9 signatures
150 seconds
General
- Target 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe
- Size 1.6MB
- Sample261001-lv46yahd34
- SHA256 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4
- MD5 52bacdbfcf2f07547b2493f6cdcfcfd7
- SHA1 f5cec5cc2842ace93e471a28def2260c0d192359
- SHA512 f8c0bb2cd5049c0b8d903419857e271bdf9b998038a00a0fb8d00ce672a0bd94eaa7ede76bec1b792aa37b133e662d0a452b8763199c6e703e0e3ee956eba0ec
- SSDEEP 24576:5vO2xJKRI2FOkx2LFEvcUQPxuZ98Es8k3OH3C0rQ6+84FqoBsqMwLooSHazBvKRC:5HHKO29Qm5QZuTtS0rQM4PSxSFlv+a
- TLSH T141759E22E341C072D567117146BA0B7EA938BE62077495C7E3D4FD752F722E2AA3630E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4860 b199fd8 - Unexpected DNS network traffic destination 22 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 457 223.5.5.5 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe Destination IP 41 223.5.5.5 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe Destination IP 95 223.5.5.5 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe Destination IP 182 223.5.5.5 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe Destination IP 403 223.5.5.5 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe Destination IP 456 114.114.114.114 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe Destination IP 3 114.114.114.114 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe Destination IP 5 223.5.5.5 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe Destination IP 94 114.114.114.114 4860 b199fd8 Destination IP 181 114.114.114.114 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe Destination IP 236 223.5.5.5 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe Destination IP 349 223.5.5.5 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe Destination IP 40 114.114.114.114 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe Destination IP 149 114.114.114.114 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe Destination IP 150 223.5.5.5 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe Destination IP 284 114.114.114.114 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe Destination IP 316 114.114.114.114 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe Destination IP 317 223.5.5.5 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe Destination IP 235 114.114.114.114 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe Destination IP 286 223.5.5.5 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe Destination IP 347 114.114.114.114 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe Destination IP 402 114.114.114.114 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData b199fd8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 b199fd8 File created C:\Windows\SysWOW64\b199fd8 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE b199fd8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 b199fd8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache b199fd8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 b199fd8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content b199fd8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 b199fd8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 b199fd8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 b199fd8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies b199fd8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft b199fd8 - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\533478 b199fd8 File opened for modification C:\Windows\375540 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.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\Hostname b199fd8 Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain b199fd8 Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.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 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b199fd8 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing b199fd8 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" b199fd8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" b199fd8 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix b199fd8 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" b199fd8 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ b199fd8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" b199fd8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" b199fd8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" b199fd8 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 4860 b199fd8 4860 b199fd8 4860 b199fd8 4860 b199fd8 4860 b199fd8 4860 b199fd8 4860 b199fd8 4860 b199fd8 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe Token: SeTcbPrivilege 3232 66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe Token: SeDebugPrivilege 4860 b199fd8 Token: SeTcbPrivilege 4860 b199fd8
Processes
-
C:\Users\Admin\AppData\Local\Temp\66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.exe"C:\Users\Admin\AppData\Local\Temp\66c4f99cdd726d607339ada4c24acbe8d740de71ce60a4b8516d05134e45a4e4.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:3232
-
C:\Windows\Syswow64\b199fd8C:\Windows\Syswow64\b199fd81⤵
- 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:4860
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\b199fd8
- Size 1.6MB
- SHA256 b1312873db0d952ec821d3f7ee3cc00f8ee782c86c0e6698c9583440b25c94a2
- MD5 b4f77f91b83e8db0caf2258f49617c78
- SHA1 966d769282d912d0627a47641ff430ebcfa8e0c8
- SHA512 30aa9303a766a0209505f3069fcb192157622c9797e397a66ed82935fb7e637f3d6fba0352e201402f8b9ca585f4b179772238368cd0cabb6e7932b9802b30e3
- SSDEEP 24576:wvO2xJKRI2FOkx2LFEvcUQPxuZ98Es8k3OH3C0rQ6+84FqoBsqMwLooSHazBvKRC:wHHKO29Qm5QZuTtS0rQM4PSxSFlv+a
- TLSH T133759E22E341C072D567117146BA0B7EA938BE62077495C7E3D4FD752F722E2AA3630E
- MD5 SHA1 SHA512 SSDEEP TLSH