Analysis
- max time kernel
150s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
11/10/2026, 14:17
Behavioral task
behavioral1
Sample
fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe
Resource
win10v2004-20260911-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe
- Size 638KB
- Sample261011-rl2mcasycv
- SHA256 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b
- MD5 a85d828134a0524c41f8c758ecda2e96
- SHA1 98a5641dd3579a829e73a190a8e09b4496fec1f4
- SHA512 ef2639ca065971e8196df5755f60726b89f0c390fc25b87e9bcfcdaed3d46b62fb3539c30b99e0aeffc5a3e5202d73535a0a32f9487afea2f035f6d0634c598b
- SSDEEP 6144:5cTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8KU5R2:5SvO2x9mONvKRwLSFtsOkx2LIa+ya5g
- TLSH T115D46B26B6908037C0B74675C5B64BAAFAB5BC21631186CFA380761A1F737D2BE3570D
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 3396 531863c0 - Unexpected DNS network traffic destination 24 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 471 114.114.114.114 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 472 223.5.5.5 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 95 223.5.5.5 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 262 114.114.114.114 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 319 223.5.5.5 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 414 223.5.5.5 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 40 114.114.114.114 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 41 223.5.5.5 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 181 114.114.114.114 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 327 114.114.114.114 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 328 223.5.5.5 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 4 223.5.5.5 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 94 114.114.114.114 3396 531863c0 Destination IP 149 114.114.114.114 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 150 223.5.5.5 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 236 223.5.5.5 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 264 223.5.5.5 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 316 114.114.114.114 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 358 223.5.5.5 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 1 114.114.114.114 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 182 223.5.5.5 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 235 114.114.114.114 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 357 114.114.114.114 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 413 114.114.114.114 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.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\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 531863c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 531863c0 File created C:\Windows\SysWOW64\531863c0 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 531863c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 531863c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 531863c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 531863c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 531863c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 531863c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 531863c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 531863c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 531863c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 531863c0 -
resource yara_rule behavioral2/memory/4080-0-0x0000000000DA0000-0x0000000000E2C000-memory.dmp upx behavioral2/memory/3396-3-0x00000000007B0000-0x000000000083C000-memory.dmp upx behavioral2/files/0x000700000001b86a-4.dat upx behavioral2/memory/4080-18-0x0000000000DA0000-0x0000000000E2C000-memory.dmp upx behavioral2/memory/3396-19-0x00000000007B0000-0x000000000083C000-memory.dmp upx behavioral2/memory/3396-44-0x00000000007B0000-0x000000000083C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\3a2408 531863c0 File opened for modification C:\Windows\45d9e0 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.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 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname 531863c0 Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain 531863c0 - 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 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 531863c0 - 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\Content\CachePrefix 531863c0 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 531863c0 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 531863c0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 531863c0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 531863c0 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 531863c0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 531863c0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 531863c0 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 531863c0 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 3396 531863c0 3396 531863c0 3396 531863c0 3396 531863c0 3396 531863c0 3396 531863c0 3396 531863c0 3396 531863c0 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Token: SeTcbPrivilege 4080 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Token: SeDebugPrivilege 3396 531863c0 Token: SeTcbPrivilege 3396 531863c0
Processes
-
C:\Users\Admin\AppData\Local\Temp\fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe"C:\Users\Admin\AppData\Local\Temp\fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.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:4080
-
C:\Windows\Syswow64\531863c0C:\Windows\Syswow64\531863c01⤵
- 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:3396
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\531863c0
- Size 638KB
- SHA256 24e366d92f459d94e9bc4cb6088d8cdf33888c70267034450cd8707e05dc2ccb
- MD5 43aa483b3056286718a9f41e04488e9c
- SHA1 5368f8fefe82d9fcab728c63d8cfa9da8feed1fa
- SHA512 423b79944bc1c9a68ad2a4c6713eb038eb46f38a10bab35484de4381fcaf5ab92bee050aceeec1af6791e3441cdf7ed161f6d632815c947b943da202d3384840
- SSDEEP 6144:vcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8KU5R2:vSvO2x9mONvKRwLSFtsOkx2LIa+ya5g
- TLSH T122D46B26B6908037C0B74675C5B64BAAFAB5BC21631186CFA380761A1F737D2BE3570D
- MD5 SHA1 SHA512 SSDEEP TLSH