Analysis
- max time kernel
149s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
20/08/2026, 03:48
Behavioral task
behavioral1
Sample
e8c74770dff4a619627698a449b42bbcac4c29e419eb4d231864a83db0fe5f5b.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target e8c74770dff4a619627698a449b42bbcac4c29e419eb4d231864a83db0fe5f5b.exe
- Size 766KB
- Sample260820-ec4dcsbc59
- SHA256 e8c74770dff4a619627698a449b42bbcac4c29e419eb4d231864a83db0fe5f5b
- MD5 018987a06bb41966f8976814eb108636
- SHA1 44ae5ac05992a84ebbdbfb4919dc8328f9ed2634
- SHA512 91cb666108bd8364119d546d79c8a8481d8540abb9d99edf7cfc1153dc592cd9c6be29bacce028be5ebc69a617ad2403056ec12547ea16e34158e8435202ad3c
- SSDEEP 12288:nSvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/Liw:SvO2xJKRw2kOkx2LFRvcUV
- TLSH T1E2F45A31E241C03AD0A74576C6FA0BAFE564BD25531155CBA3C43A6A2FB36D2BE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4828 b223c1a1 - 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 6 223.5.5.5 4908 e8c74770dff4a619627698a449b42bbcac4c29e419eb4d231864a83db0fe5f5b.exe Destination IP 43 114.114.114.114 4908 e8c74770dff4a619627698a449b42bbcac4c29e419eb4d231864a83db0fe5f5b.exe Destination IP 44 223.5.5.5 4908 e8c74770dff4a619627698a449b42bbcac4c29e419eb4d231864a83db0fe5f5b.exe Destination IP 3 114.114.114.114 4908 e8c74770dff4a619627698a449b42bbcac4c29e419eb4d231864a83db0fe5f5b.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache b223c1a1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE b223c1a1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 b223c1a1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft b223c1a1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 b223c1a1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content b223c1a1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 b223c1a1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 b223c1a1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\AAD646CB44373074ADE741C38400E7E1 b223c1a1 File created C:\Windows\SysWOW64\b223c1a1 e8c74770dff4a619627698a449b42bbcac4c29e419eb4d231864a83db0fe5f5b.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 b223c1a1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData b223c1a1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 b223c1a1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\AAD646CB44373074ADE741C38400E7E1 b223c1a1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies b223c1a1 -
resource yara_rule behavioral1/memory/4908-0-0x00000000007D0000-0x000000000085C000-memory.dmp upx behavioral1/files/0x000c00000002432e-2.dat upx behavioral1/memory/4828-4-0x0000000000DA0000-0x0000000000E2C000-memory.dmp upx behavioral1/memory/4908-12-0x00000000007D0000-0x000000000085C000-memory.dmp upx behavioral1/memory/4828-13-0x0000000000DA0000-0x0000000000E2C000-memory.dmp upx behavioral1/memory/4828-29-0x0000000000DA0000-0x0000000000E2C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\52a838 b223c1a1 File opened for modification C:\Windows\5406d8 e8c74770dff4a619627698a449b42bbcac4c29e419eb4d231864a83db0fe5f5b.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 e8c74770dff4a619627698a449b42bbcac4c29e419eb4d231864a83db0fe5f5b.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b223c1a1 - 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 b223c1a1 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ b223c1a1 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" b223c1a1 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" b223c1a1 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" b223c1a1 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" b223c1a1 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" b223c1a1 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" b223c1a1 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing b223c1a1 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4828 b223c1a1 4828 b223c1a1 4828 b223c1a1 4828 b223c1a1 4828 b223c1a1 4828 b223c1a1 4828 b223c1a1 4828 b223c1a1 4908 e8c74770dff4a619627698a449b42bbcac4c29e419eb4d231864a83db0fe5f5b.exe 4908 e8c74770dff4a619627698a449b42bbcac4c29e419eb4d231864a83db0fe5f5b.exe 4908 e8c74770dff4a619627698a449b42bbcac4c29e419eb4d231864a83db0fe5f5b.exe 4908 e8c74770dff4a619627698a449b42bbcac4c29e419eb4d231864a83db0fe5f5b.exe 4908 e8c74770dff4a619627698a449b42bbcac4c29e419eb4d231864a83db0fe5f5b.exe 4908 e8c74770dff4a619627698a449b42bbcac4c29e419eb4d231864a83db0fe5f5b.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4908 e8c74770dff4a619627698a449b42bbcac4c29e419eb4d231864a83db0fe5f5b.exe Token: SeTcbPrivilege 4908 e8c74770dff4a619627698a449b42bbcac4c29e419eb4d231864a83db0fe5f5b.exe Token: SeDebugPrivilege 4828 b223c1a1 Token: SeTcbPrivilege 4828 b223c1a1
Processes
-
C:\Users\Admin\AppData\Local\Temp\e8c74770dff4a619627698a449b42bbcac4c29e419eb4d231864a83db0fe5f5b.exe"C:\Users\Admin\AppData\Local\Temp\e8c74770dff4a619627698a449b42bbcac4c29e419eb4d231864a83db0fe5f5b.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:4908
-
C:\Windows\Syswow64\b223c1a1C:\Windows\Syswow64\b223c1a11⤵
- 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:4828
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\b223c1a1
- Size 766KB
- SHA256 912e59112f44d2e3777d8d9058c433d2aece9ff3fdc04b61775ebb151e577089
- MD5 e01056b52b503e5031f8d0c3cc252da9
- SHA1 caa72cd3d218d754a3705b1712b790ca9c0045ee
- SHA512 7a945bb4645f0217ebdfb2da52a09311b7dfdc54c607127151f8c98897a50521c5a3b4c34e9404a47184b0022eaaec56dcaec1a0419d5708f8a6990c897a3cf0
- SSDEEP 12288:MSvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/Liw:/vO2xJKRw2kOkx2LFRvcUV
- TLSH T105F45A31E241C03AD0A74576C6FA0BAFE564BD25531155CBA3C43A6A2FB36D2BE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH