Analysis
- max time kernel
148s - max time network
145s - 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, 01:23
Behavioral task
behavioral1
Sample
251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe
Resource
win10v2004-20260911-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe
- Size 560KB
- Sample261017-brxbtace53
- SHA256 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5
- MD5 a87618ba92c0dae84f0c279f89e829f6
- SHA1 ae8bf7f255e7e0353c2760f81d3898cc96082d7d
- SHA512 f7ce902aee1b5ef386af10d7f9af8fc08018d3c12616726a0a5ae772961611908a45989df7e0a48d9fedbbf20021c402c589ba4acf13afd97ecd02c5e702ca6c
- SSDEEP 12288:d3Sgbu4VOGWPSqt6IpouYgCEmx1z725uRG9OArjlI6YeLm08XsOkx2LIa+y:/VOL4/gPXKCOkx2LFR
- TLSH T1A1C46D2AB6E0D076C4B79574C4A256A6FFB1B43127204ACF6390475A1F637E2BE3530E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 1840 d74997fc - Unexpected DNS network traffic destination 18 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 177 114.114.114.114 4844 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe Destination IP 231 114.114.114.114 4844 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe Destination IP 288 114.114.114.114 4844 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe Destination IP 2 223.5.5.5 4844 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe Destination IP 133 223.5.5.5 4844 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe Destination IP 319 223.5.5.5 4844 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe Destination IP 373 223.5.5.5 4844 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe Destination IP 131 114.114.114.114 4844 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe Destination IP 178 223.5.5.5 4844 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe Destination IP 232 223.5.5.5 4844 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe Destination IP 372 114.114.114.114 4844 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe Destination IP 1 114.114.114.114 4844 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe Destination IP 36 223.5.5.5 4844 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe Destination IP 89 114.114.114.114 1840 d74997fc Destination IP 91 223.5.5.5 4844 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe Destination IP 289 223.5.5.5 4844 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe Destination IP 318 114.114.114.114 4844 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe Destination IP 35 114.114.114.114 4844 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData d74997fc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 d74997fc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 d74997fc File created C:\Windows\SysWOW64\d74997fc 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE d74997fc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 d74997fc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 d74997fc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 d74997fc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content d74997fc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 d74997fc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 d74997fc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies d74997fc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft d74997fc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache d74997fc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 d74997fc -
resource yara_rule behavioral2/memory/4844-0-0x0000000000800000-0x000000000088C000-memory.dmp upx behavioral2/files/0x000600000001b864-2.dat upx behavioral2/memory/1840-4-0x0000000000AF0000-0x0000000000B7C000-memory.dmp upx behavioral2/memory/4844-20-0x0000000000800000-0x000000000088C000-memory.dmp upx behavioral2/memory/1840-21-0x0000000000AF0000-0x0000000000B7C000-memory.dmp upx behavioral2/memory/1840-42-0x0000000000AF0000-0x0000000000B7C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\1f8060 d74997fc File opened for modification C:\Windows\52ee58 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.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 d74997fc Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain d74997fc Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.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 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language d74997fc - 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\History\CachePrefix = "Visited:" d74997fc Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ d74997fc Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" d74997fc Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" d74997fc Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" d74997fc Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix d74997fc Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" d74997fc Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" d74997fc Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing d74997fc - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 1840 d74997fc 1840 d74997fc 1840 d74997fc 1840 d74997fc 1840 d74997fc 1840 d74997fc 1840 d74997fc 1840 d74997fc 4844 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe 4844 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe 4844 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe 4844 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe 4844 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe 4844 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe 4844 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe 4844 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe 4844 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe 4844 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe 4844 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe 4844 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe 4844 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe 4844 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4844 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe Token: SeTcbPrivilege 4844 251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe Token: SeDebugPrivilege 1840 d74997fc Token: SeTcbPrivilege 1840 d74997fc
Processes
-
C:\Users\Admin\AppData\Local\Temp\251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.exe"C:\Users\Admin\AppData\Local\Temp\251d5ca6007b41954a3179f59fa85a4366ec0ecfdcf2cdc547cabf6168c79ae5.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:4844
-
C:\Windows\Syswow64\d74997fcC:\Windows\Syswow64\d74997fc1⤵
- 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:1840
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\d74997fc
- Size 560KB
- SHA256 4b8a4484f240e95fc7ec20b2aa5ab0b289778a92ff12862df7557988b548135c
- MD5 eb9fe292c03125ed949db0dd22b5ff37
- SHA1 31d5bd2cd5c59fdc1e3350f13d727366b3cc71d9
- SHA512 8dd744814e986cb95d5bde31b3bbc17a13e12fe3244fd6892daf2683a78b5fc5fae007b01bddc344afd8d74228620b5cb1757ffe903b471f900966d9f6136f09
- SSDEEP 12288:b3Sgbu4VOGWPSqt6IpouYgCEmx1z725uRG9OArjlI6YeLm08XsOkx2LIa+y:JVOL4/gPXKCOkx2LFR
- TLSH T1D5C46D2AB6E0D076C4B79574C4A256A6FFB1B43127204ACF6390475A1F637E2BE3530E
- MD5 SHA1 SHA512 SSDEEP TLSH