Analysis
- max time kernel
149s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
04/08/2026, 00:41
Behavioral task
behavioral1
Sample
8337eb43063d7567755551f738b5ca246900cf6abd8b369cb9e86d47714ffcbc.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 8337eb43063d7567755551f738b5ca246900cf6abd8b369cb9e86d47714ffcbc.exe
- Size 576KB
- Sample260804-a2a1wsab96
- SHA256 8337eb43063d7567755551f738b5ca246900cf6abd8b369cb9e86d47714ffcbc
- MD5 d21262518fd18d115e2ef6930f3f4bfc
- SHA1 f0f1248cef9ff7f0d8cb237d421d2cff5a580eb4
- SHA512 a84d9df3af3c5646a2153c4c64ff6b0b742070e81ffbf32696c3dc5c7c52ce91440938b6f60823e286c5c0e84c72546445556a836b93f4578be5f8c66ca0d4d4
- SSDEEP 6144:zcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8K/:zSvO2x9mONvKRwLSFtsOkx2LIa+yx
- TLSH T191C46D26B6908072C4779578C4A257AAFBB1BC2127204ACFA390775A1F737D2BE3570D
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 2756 d75c2d3 - 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 28 114.114.114.114 952 8337eb43063d7567755551f738b5ca246900cf6abd8b369cb9e86d47714ffcbc.exe Destination IP 29 223.5.5.5 952 8337eb43063d7567755551f738b5ca246900cf6abd8b369cb9e86d47714ffcbc.exe Destination IP 3 114.114.114.114 952 8337eb43063d7567755551f738b5ca246900cf6abd8b369cb9e86d47714ffcbc.exe Destination IP 6 223.5.5.5 952 8337eb43063d7567755551f738b5ca246900cf6abd8b369cb9e86d47714ffcbc.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 d75c2d3 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE d75c2d3 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies d75c2d3 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache d75c2d3 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 d75c2d3 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content d75c2d3 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 d75c2d3 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 d75c2d3 File created C:\Windows\SysWOW64\d75c2d3 8337eb43063d7567755551f738b5ca246900cf6abd8b369cb9e86d47714ffcbc.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 d75c2d3 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 d75c2d3 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft d75c2d3 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData d75c2d3 -
resource yara_rule behavioral1/memory/952-0-0x0000000000AA0000-0x0000000000B2C000-memory.dmp upx behavioral1/files/0x000800000001e42d-2.dat upx behavioral1/memory/2756-3-0x0000000000F70000-0x0000000000FFC000-memory.dmp upx behavioral1/memory/952-16-0x0000000000AA0000-0x0000000000B2C000-memory.dmp upx behavioral1/memory/2756-17-0x0000000000F70000-0x0000000000FFC000-memory.dmp upx behavioral1/memory/2756-22-0x0000000000F70000-0x0000000000FFC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\104c70 8337eb43063d7567755551f738b5ca246900cf6abd8b369cb9e86d47714ffcbc.exe File opened for modification C:\Windows\2f2f08 d75c2d3 - 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 8337eb43063d7567755551f738b5ca246900cf6abd8b369cb9e86d47714ffcbc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language d75c2d3 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" d75c2d3 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" d75c2d3 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" d75c2d3 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing d75c2d3 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix d75c2d3 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" d75c2d3 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" d75c2d3 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ d75c2d3 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" d75c2d3 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 2756 d75c2d3 2756 d75c2d3 2756 d75c2d3 2756 d75c2d3 2756 d75c2d3 2756 d75c2d3 2756 d75c2d3 2756 d75c2d3 952 8337eb43063d7567755551f738b5ca246900cf6abd8b369cb9e86d47714ffcbc.exe 952 8337eb43063d7567755551f738b5ca246900cf6abd8b369cb9e86d47714ffcbc.exe 952 8337eb43063d7567755551f738b5ca246900cf6abd8b369cb9e86d47714ffcbc.exe 952 8337eb43063d7567755551f738b5ca246900cf6abd8b369cb9e86d47714ffcbc.exe 952 8337eb43063d7567755551f738b5ca246900cf6abd8b369cb9e86d47714ffcbc.exe 952 8337eb43063d7567755551f738b5ca246900cf6abd8b369cb9e86d47714ffcbc.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 952 8337eb43063d7567755551f738b5ca246900cf6abd8b369cb9e86d47714ffcbc.exe Token: SeTcbPrivilege 952 8337eb43063d7567755551f738b5ca246900cf6abd8b369cb9e86d47714ffcbc.exe Token: SeDebugPrivilege 2756 d75c2d3 Token: SeTcbPrivilege 2756 d75c2d3
Processes
-
C:\Users\Admin\AppData\Local\Temp\8337eb43063d7567755551f738b5ca246900cf6abd8b369cb9e86d47714ffcbc.exe"C:\Users\Admin\AppData\Local\Temp\8337eb43063d7567755551f738b5ca246900cf6abd8b369cb9e86d47714ffcbc.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:952
-
C:\Windows\Syswow64\d75c2d3C:\Windows\Syswow64\d75c2d31⤵
- 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:2756
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Windows\SysWOW64\d75c2d3
- Size 576KB
- SHA256 b9910772f2301aad8c9fcb450baeca18cb6bd3ba5b202700f5fbd7f464679fca
- MD5 28ce4d73d6d953665200097e9a2a5cf0
- SHA1 66b84eb882491c7bfe7e07398b121d668d7bd4c1
- SHA512 a4a2c92e69c01ee335fd6e2af0542557ead4408dfac523961a196cddccd27c54c51a80be5cd8b14cf1b3d0d5d11b0c1fb9d9dd0d5065c3fe30e3959048605226
- SSDEEP 6144:lcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8K/:lSvO2x9mONvKRwLSFtsOkx2LIa+yx
- TLSH T1ACC46D26B6908072C4779578C4A257AAFBB1BC2127204ACFA390775A1F737D2BE3570D
- MD5 SHA1 SHA512 SSDEEP TLSH