Analysis
- max time kernel
150s - max time network
146s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
09/08/2026, 22:15
Behavioral task
behavioral1
Sample
a8a5ecdb63ec9092c5cffb58365b3d079819d5ffe53e4e1b8f83416c238ba759.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target a8a5ecdb63ec9092c5cffb58365b3d079819d5ffe53e4e1b8f83416c238ba759.exe
- Size 576KB
- Sample260809-16lajaem2w
- SHA256 a8a5ecdb63ec9092c5cffb58365b3d079819d5ffe53e4e1b8f83416c238ba759
- MD5 c26a2f265f0f71f4bf1f90c6e0e30413
- SHA1 b1306593d1047e0c1cfb24b72612051a12235361
- SHA512 bb992be03ed2b14bab14a3969860d434ebe6b01d9b23c88ab5d717b07ec0bc9cfdfe62f4b669d1e4510881caabd393eb3e075ba9fc7abc7b99eff13c1308c608
- SSDEEP 6144:vcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8K/:vSvO2x9mONvKRwLSFtsOkx2LIa+yx
- TLSH T13FC46D26B6908072C4779578C4A257AAFBB1BC2127204ACFA390775A1F737D2BE3570D
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 2736 3c2f453a - 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 1 114.114.114.114 4060 a8a5ecdb63ec9092c5cffb58365b3d079819d5ffe53e4e1b8f83416c238ba759.exe Destination IP 4 223.5.5.5 4060 a8a5ecdb63ec9092c5cffb58365b3d079819d5ffe53e4e1b8f83416c238ba759.exe Destination IP 25 114.114.114.114 4060 a8a5ecdb63ec9092c5cffb58365b3d079819d5ffe53e4e1b8f83416c238ba759.exe Destination IP 26 223.5.5.5 4060 a8a5ecdb63ec9092c5cffb58365b3d079819d5ffe53e4e1b8f83416c238ba759.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 3c2f453a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 3c2f453a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 3c2f453a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 3c2f453a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 3c2f453a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 3c2f453a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 3c2f453a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 3c2f453a File created C:\Windows\SysWOW64\3c2f453a a8a5ecdb63ec9092c5cffb58365b3d079819d5ffe53e4e1b8f83416c238ba759.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 3c2f453a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 3c2f453a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 3c2f453a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 3c2f453a -
resource yara_rule behavioral2/memory/4060-0-0x0000000000250000-0x00000000002DC000-memory.dmp upx behavioral2/files/0x000600000001b85f-3.dat upx behavioral2/memory/2736-4-0x0000000000EC0000-0x0000000000F4C000-memory.dmp upx behavioral2/memory/4060-16-0x0000000000250000-0x00000000002DC000-memory.dmp upx behavioral2/memory/2736-17-0x0000000000EC0000-0x0000000000F4C000-memory.dmp upx behavioral2/memory/2736-34-0x0000000000EC0000-0x0000000000F4C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\2ed760 3c2f453a File opened for modification C:\Windows\458238 a8a5ecdb63ec9092c5cffb58365b3d079819d5ffe53e4e1b8f83416c238ba759.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 3c2f453a Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a8a5ecdb63ec9092c5cffb58365b3d079819d5ffe53e4e1b8f83416c238ba759.exe - 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:" 3c2f453a Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 3c2f453a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 3c2f453a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 3c2f453a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 3c2f453a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 3c2f453a Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 3c2f453a Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 3c2f453a Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 3c2f453a - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 2736 3c2f453a 2736 3c2f453a 2736 3c2f453a 2736 3c2f453a 2736 3c2f453a 2736 3c2f453a 2736 3c2f453a 2736 3c2f453a 4060 a8a5ecdb63ec9092c5cffb58365b3d079819d5ffe53e4e1b8f83416c238ba759.exe 4060 a8a5ecdb63ec9092c5cffb58365b3d079819d5ffe53e4e1b8f83416c238ba759.exe 4060 a8a5ecdb63ec9092c5cffb58365b3d079819d5ffe53e4e1b8f83416c238ba759.exe 4060 a8a5ecdb63ec9092c5cffb58365b3d079819d5ffe53e4e1b8f83416c238ba759.exe 4060 a8a5ecdb63ec9092c5cffb58365b3d079819d5ffe53e4e1b8f83416c238ba759.exe 4060 a8a5ecdb63ec9092c5cffb58365b3d079819d5ffe53e4e1b8f83416c238ba759.exe 4060 a8a5ecdb63ec9092c5cffb58365b3d079819d5ffe53e4e1b8f83416c238ba759.exe 4060 a8a5ecdb63ec9092c5cffb58365b3d079819d5ffe53e4e1b8f83416c238ba759.exe 4060 a8a5ecdb63ec9092c5cffb58365b3d079819d5ffe53e4e1b8f83416c238ba759.exe 4060 a8a5ecdb63ec9092c5cffb58365b3d079819d5ffe53e4e1b8f83416c238ba759.exe 4060 a8a5ecdb63ec9092c5cffb58365b3d079819d5ffe53e4e1b8f83416c238ba759.exe 4060 a8a5ecdb63ec9092c5cffb58365b3d079819d5ffe53e4e1b8f83416c238ba759.exe 4060 a8a5ecdb63ec9092c5cffb58365b3d079819d5ffe53e4e1b8f83416c238ba759.exe 4060 a8a5ecdb63ec9092c5cffb58365b3d079819d5ffe53e4e1b8f83416c238ba759.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4060 a8a5ecdb63ec9092c5cffb58365b3d079819d5ffe53e4e1b8f83416c238ba759.exe Token: SeTcbPrivilege 4060 a8a5ecdb63ec9092c5cffb58365b3d079819d5ffe53e4e1b8f83416c238ba759.exe Token: SeDebugPrivilege 2736 3c2f453a Token: SeTcbPrivilege 2736 3c2f453a
Processes
-
C:\Users\Admin\AppData\Local\Temp\a8a5ecdb63ec9092c5cffb58365b3d079819d5ffe53e4e1b8f83416c238ba759.exe"C:\Users\Admin\AppData\Local\Temp\a8a5ecdb63ec9092c5cffb58365b3d079819d5ffe53e4e1b8f83416c238ba759.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:4060
-
C:\Windows\Syswow64\3c2f453aC:\Windows\Syswow64\3c2f453a1⤵
- 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:2736
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\3c2f453a
- Size 576KB
- SHA256 5c65e2a8b12c0a7c5a3f9054abf9aeac2c11750c0559601e1bd1484413abecff
- MD5 ad6e6d7928302da5c535fe35c15a2410
- SHA1 e5e98890b1a756186901163e79c26247530e703b
- SHA512 79e97e0f14562074c8238e0ea7467f8ddb8268f1bae28faaccdf5c3abad4e923c48d2d1be1fed8b3998fe1c8b101f1bd6e39b524f2ab9135267068cb125bc0df
- SSDEEP 6144:kcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8K/:kSvO2x9mONvKRwLSFtsOkx2LIa+yx
- TLSH T1B1C46D26B6908072C4779578C4A257AAFBB1BC2127204ACFA390775A1F737D2BE3570D
- MD5 SHA1 SHA512 SSDEEP TLSH