Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
20/09/2026, 23:15
Behavioral task
behavioral1
Sample
455acad91a327664bb2c80d520663460be71e09c7ef0451dcd297373b6ff8ae4.exe
Resource
win10v2004-20260911-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 455acad91a327664bb2c80d520663460be71e09c7ef0451dcd297373b6ff8ae4.exe
- Size 560KB
- Sample260920-282wqsvthy
- SHA256 455acad91a327664bb2c80d520663460be71e09c7ef0451dcd297373b6ff8ae4
- MD5 bf53be28edea1534da720c398b001486
- SHA1 0d1acedd338a5d3eeb829c34d0963effbe559879
- SHA512 8ed27bf906d6d36d49826c504368a558c784101c50b3f0403c8102c052dcda3c07ed8fb9873f41fd14b55a827ac008ca3cd67f570737881dcfac11fe5545166f
- SSDEEP 6144:/WVrC1c2oonALgPLj7vf1LKlyIFVirGcEOkCybEaQRuy8K:/kCO2zVPX7vf1LKlIsOkxHy
- TLSH T15AC47C29B690D076C4779574C4A187AAFAB1B432372449CFB3D00B5A1F237E2BA7530E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 5108 66d854ff - 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 4 223.5.5.5 3544 455acad91a327664bb2c80d520663460be71e09c7ef0451dcd297373b6ff8ae4.exe Destination IP 47 114.114.114.114 3544 455acad91a327664bb2c80d520663460be71e09c7ef0451dcd297373b6ff8ae4.exe Destination IP 51 223.5.5.5 3544 455acad91a327664bb2c80d520663460be71e09c7ef0451dcd297373b6ff8ae4.exe Destination IP 2 114.114.114.114 3544 455acad91a327664bb2c80d520663460be71e09c7ef0451dcd297373b6ff8ae4.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\AAD646CB44373074ADE741C38400E7E1 66d854ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\AAD646CB44373074ADE741C38400E7E1 66d854ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 66d854ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 66d854ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 66d854ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 66d854ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 66d854ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 66d854ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 66d854ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 66d854ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 66d854ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 66d854ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 66d854ff File created C:\Windows\SysWOW64\66d854ff 455acad91a327664bb2c80d520663460be71e09c7ef0451dcd297373b6ff8ae4.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 66d854ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 66d854ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 66d854ff -
resource yara_rule behavioral1/memory/3544-0-0x0000000000AD0000-0x0000000000B5C000-memory.dmp upx behavioral1/files/0x000a00000002429a-2.dat upx behavioral1/memory/5108-4-0x0000000000E10000-0x0000000000E9C000-memory.dmp upx behavioral1/memory/3544-10-0x0000000000AD0000-0x0000000000B5C000-memory.dmp upx behavioral1/memory/5108-11-0x0000000000E10000-0x0000000000E9C000-memory.dmp upx behavioral1/memory/5108-32-0x0000000000E10000-0x0000000000E9C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\577368 66d854ff File opened for modification C:\Windows\3cacb0 455acad91a327664bb2c80d520663460be71e09c7ef0451dcd297373b6ff8ae4.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 455acad91a327664bb2c80d520663460be71e09c7ef0451dcd297373b6ff8ae4.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 66d854ff - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 66d854ff Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 66d854ff Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 66d854ff Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 66d854ff Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 66d854ff Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 66d854ff Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 66d854ff Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 66d854ff Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 66d854ff - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 5108 66d854ff 5108 66d854ff 5108 66d854ff 5108 66d854ff 5108 66d854ff 5108 66d854ff 5108 66d854ff 5108 66d854ff 3544 455acad91a327664bb2c80d520663460be71e09c7ef0451dcd297373b6ff8ae4.exe 3544 455acad91a327664bb2c80d520663460be71e09c7ef0451dcd297373b6ff8ae4.exe 3544 455acad91a327664bb2c80d520663460be71e09c7ef0451dcd297373b6ff8ae4.exe 3544 455acad91a327664bb2c80d520663460be71e09c7ef0451dcd297373b6ff8ae4.exe 3544 455acad91a327664bb2c80d520663460be71e09c7ef0451dcd297373b6ff8ae4.exe 3544 455acad91a327664bb2c80d520663460be71e09c7ef0451dcd297373b6ff8ae4.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3544 455acad91a327664bb2c80d520663460be71e09c7ef0451dcd297373b6ff8ae4.exe Token: SeTcbPrivilege 3544 455acad91a327664bb2c80d520663460be71e09c7ef0451dcd297373b6ff8ae4.exe Token: SeDebugPrivilege 5108 66d854ff Token: SeTcbPrivilege 5108 66d854ff
Processes
-
C:\Users\Admin\AppData\Local\Temp\455acad91a327664bb2c80d520663460be71e09c7ef0451dcd297373b6ff8ae4.exe"C:\Users\Admin\AppData\Local\Temp\455acad91a327664bb2c80d520663460be71e09c7ef0451dcd297373b6ff8ae4.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:3544
-
C:\Windows\Syswow64\66d854ffC:\Windows\Syswow64\66d854ff1⤵
- 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:5108
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\66d854ff
- Size 560KB
- SHA256 5b6107e12923a792ed31a88eec33079d15676562c85c4ddda65f5fb4a7684b6f
- MD5 9ba0f92c3ca61099b75fdbd5898fc7ca
- SHA1 11f4c915381204478226733ecbc478242a82ed92
- SHA512 1f2b48cb1ab0e80550b6e0b23b4f5b3c33e4a62815e78a2964770e985eae322a98ad6bad18d14c6b1586eb056e11ea585ca1f566533c88ea0cd2e7664ed6401a
- SSDEEP 6144:8WVrC1c2oonALgPLj7vf1LKlyIFVirGcEOkCybEaQRuy8K:8kCO2zVPX7vf1LKlIsOkxHy
- TLSH T151C47C29B690D076C4779574C4A187AAFAB1B432372449CFB3D00B5A1F237E2BA7530E
- MD5 SHA1 SHA512 SSDEEP TLSH