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
17/10/2026, 04:36
Behavioral task
behavioral1
Sample
d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe
Resource
win10v2004-20260911-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe
- Size 525KB
- Sample261017-e8d4cahw2n
- SHA256 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3
- MD5 3d55617c32be848d947e20809d6b4470
- SHA1 6a0a841d5c603ffacce6461eb0324214b7cfd4cc
- SHA512 b56a1ed45eb82fe7a714cae47e3941d519d3e64396349ab872dedbc7c776b54cb38410a1c1410dbe99ded6d479a0c27ac60c17a9172c28b1004eaf2848dc5a77
- SSDEEP 6144:gcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8K:gSvO2x9mONvKRwLSFtsOkx2LIa+y
- TLSH T18FB47D2AB6A0D076C4779579C4A257BAFBB1742137204ACFA390475A1F237E2BE3530D
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4436 3dfc3bb4 - 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 231 223.5.5.5 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe Destination IP 1 114.114.114.114 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe Destination IP 2 223.5.5.5 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe Destination IP 145 223.5.5.5 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe Destination IP 176 114.114.114.114 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe Destination IP 177 223.5.5.5 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe Destination IP 230 114.114.114.114 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe Destination IP 339 114.114.114.114 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe Destination IP 284 114.114.114.114 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe Destination IP 285 223.5.5.5 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe Destination IP 396 223.5.5.5 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe Destination IP 450 114.114.114.114 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe Destination IP 451 223.5.5.5 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe Destination IP 91 223.5.5.5 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe Destination IP 144 114.114.114.114 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe Destination IP 395 114.114.114.114 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe Destination IP 35 114.114.114.114 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe Destination IP 36 223.5.5.5 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe Destination IP 89 114.114.114.114 4436 3dfc3bb4 Destination IP 309 114.114.114.114 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe Destination IP 310 223.5.5.5 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe Destination IP 342 223.5.5.5 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 3dfc3bb4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 3dfc3bb4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 3dfc3bb4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 3dfc3bb4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 3dfc3bb4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 3dfc3bb4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 3dfc3bb4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 3dfc3bb4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 3dfc3bb4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 3dfc3bb4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 3dfc3bb4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 3dfc3bb4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 3dfc3bb4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 3dfc3bb4 File created C:\Windows\SysWOW64\3dfc3bb4 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe -
resource yara_rule behavioral2/memory/4816-0-0x00000000008F0000-0x000000000097C000-memory.dmp upx behavioral2/files/0x000e00000001c537-2.dat upx behavioral2/memory/4436-3-0x00000000003F0000-0x000000000047C000-memory.dmp upx behavioral2/memory/4816-20-0x00000000008F0000-0x000000000097C000-memory.dmp upx behavioral2/memory/4436-21-0x00000000003F0000-0x000000000047C000-memory.dmp upx behavioral2/memory/4436-44-0x00000000003F0000-0x000000000047C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\4bf228 3dfc3bb4 File opened for modification C:\Windows\5273a0 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.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 3dfc3bb4 Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain 3dfc3bb4 Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.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 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 3dfc3bb4 - 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:" 3dfc3bb4 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 3dfc3bb4 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 3dfc3bb4 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 3dfc3bb4 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 3dfc3bb4 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 3dfc3bb4 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 3dfc3bb4 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 3dfc3bb4 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 3dfc3bb4 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 4436 3dfc3bb4 4436 3dfc3bb4 4436 3dfc3bb4 4436 3dfc3bb4 4436 3dfc3bb4 4436 3dfc3bb4 4436 3dfc3bb4 4436 3dfc3bb4 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe Token: SeTcbPrivilege 4816 d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe Token: SeDebugPrivilege 4436 3dfc3bb4 Token: SeTcbPrivilege 4436 3dfc3bb4
Processes
-
C:\Users\Admin\AppData\Local\Temp\d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.exe"C:\Users\Admin\AppData\Local\Temp\d21e52aa2fdbb78e68e252e91fe5b0f850c9c917981bf6938bb522126c6477d3.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:4816
-
C:\Windows\Syswow64\3dfc3bb4C:\Windows\Syswow64\3dfc3bb41⤵
- 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:4436
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\3dfc3bb4
- Size 525KB
- SHA256 5bde28accdffc5d96e02c8dc7abc4af27f6495ddd01c9c4e71186631fe4b7476
- MD5 64ade3122e43b7358100c33de65981cf
- SHA1 574a7e9ca8267dd52409ea97b59afd5753fe8ab1
- SHA512 991d5c8026f542092ed7b57dfa378de3895c5c2e3a650f0d236666c199a89842661b4ec5b1eaaa18a0c671ce3c1d12a83b4a89355aa20e492bc52668ec523005
- SSDEEP 6144:AcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8K:ASvO2x9mONvKRwLSFtsOkx2LIa+y
- TLSH T1F0B47D2AB6A0D076C4779579C4A257BAFBB1742137204ACFA390475A1F237E2BE3530D
- MD5 SHA1 SHA512 SSDEEP TLSH