Analysis
- max time kernel
149s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
27/04/2026, 00:18
Behavioral task
behavioral1
Sample
e281d0403781fdaf7496fbbbe1f0d3c377f291faafbbd1bab7c437e63a771f84.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target e281d0403781fdaf7496fbbbe1f0d3c377f291faafbbd1bab7c437e63a771f84.exe
- Size 525KB
- Sample260427-althasc17j
- SHA256 e281d0403781fdaf7496fbbbe1f0d3c377f291faafbbd1bab7c437e63a771f84
- MD5 71745d351bd697df53e52cf13d73df7c
- SHA1 2749e16b89145d237ba14ac425620e6dca4a03b3
- SHA512 2b0391d08b3b81cecbd7056a087db237162bb38d736d16616a04a7d5e6eae86b6484887c7205fefabb93f6bf0fe02df4786885a5585f949a0b60afdba0278ebe
- SSDEEP 6144:scTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8K:sSvO2x9mONvKRwLSFtsOkx2LIa+y
- TLSH T1C7B47D2AB6A0D076C4779579C4A257BAFBB1742137204ACFA390475A1F237E2BE3530D
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4312 1c756474 - 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 2 114.114.114.114 4336 e281d0403781fdaf7496fbbbe1f0d3c377f291faafbbd1bab7c437e63a771f84.exe Destination IP 4 223.5.5.5 4336 e281d0403781fdaf7496fbbbe1f0d3c377f291faafbbd1bab7c437e63a771f84.exe Destination IP 28 114.114.114.114 4336 e281d0403781fdaf7496fbbbe1f0d3c377f291faafbbd1bab7c437e63a771f84.exe Destination IP 30 223.5.5.5 4336 e281d0403781fdaf7496fbbbe1f0d3c377f291faafbbd1bab7c437e63a771f84.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 1c756474 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 1c756474 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 1c756474 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 1c756474 File created C:\Windows\SysWOW64\1c756474 e281d0403781fdaf7496fbbbe1f0d3c377f291faafbbd1bab7c437e63a771f84.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 1c756474 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 1c756474 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 1c756474 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 1c756474 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 1c756474 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 1c756474 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 1c756474 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 1c756474 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 1c756474 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 1c756474 -
resource yara_rule behavioral1/memory/4336-0-0x0000000000110000-0x000000000019C000-memory.dmp upx behavioral1/files/0x0005000000023076-2.dat upx behavioral1/memory/4312-4-0x0000000000590000-0x000000000061C000-memory.dmp upx behavioral1/memory/4336-18-0x0000000000110000-0x000000000019C000-memory.dmp upx behavioral1/memory/4312-20-0x0000000000590000-0x000000000061C000-memory.dmp upx behavioral1/memory/4312-40-0x0000000000590000-0x000000000061C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\49d2b0 1c756474 File opened for modification C:\Windows\4a3be0 e281d0403781fdaf7496fbbbe1f0d3c377f291faafbbd1bab7c437e63a771f84.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 e281d0403781fdaf7496fbbbe1f0d3c377f291faafbbd1bab7c437e63a771f84.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 1c756474 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 1c756474 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 1c756474 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 1c756474 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 1c756474 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 1c756474 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 1c756474 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 1c756474 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 1c756474 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 1c756474 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4312 1c756474 4312 1c756474 4312 1c756474 4312 1c756474 4312 1c756474 4312 1c756474 4312 1c756474 4312 1c756474 4336 e281d0403781fdaf7496fbbbe1f0d3c377f291faafbbd1bab7c437e63a771f84.exe 4336 e281d0403781fdaf7496fbbbe1f0d3c377f291faafbbd1bab7c437e63a771f84.exe 4336 e281d0403781fdaf7496fbbbe1f0d3c377f291faafbbd1bab7c437e63a771f84.exe 4336 e281d0403781fdaf7496fbbbe1f0d3c377f291faafbbd1bab7c437e63a771f84.exe 4336 e281d0403781fdaf7496fbbbe1f0d3c377f291faafbbd1bab7c437e63a771f84.exe 4336 e281d0403781fdaf7496fbbbe1f0d3c377f291faafbbd1bab7c437e63a771f84.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4336 e281d0403781fdaf7496fbbbe1f0d3c377f291faafbbd1bab7c437e63a771f84.exe Token: SeTcbPrivilege 4336 e281d0403781fdaf7496fbbbe1f0d3c377f291faafbbd1bab7c437e63a771f84.exe Token: SeDebugPrivilege 4312 1c756474 Token: SeTcbPrivilege 4312 1c756474
Processes
-
C:\Users\Admin\AppData\Local\Temp\e281d0403781fdaf7496fbbbe1f0d3c377f291faafbbd1bab7c437e63a771f84.exe"C:\Users\Admin\AppData\Local\Temp\e281d0403781fdaf7496fbbbe1f0d3c377f291faafbbd1bab7c437e63a771f84.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:4336
-
C:\Windows\Syswow64\1c756474C:\Windows\Syswow64\1c7564741⤵
- 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:4312
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\1c756474
- Size 525KB
- SHA256 9e4656e5e65a423a0d5e5070afbd29b94b445863b64419ff615d5745235df3e2
- MD5 74c48847d553d0a9bf3b77c953adc102
- SHA1 73716af9927e480af4d080a165886809afdfecff
- SHA512 decd6bfb17962cf5231fdc0b608107ee97898f4dcfcdd4bd80fec718bad178f81c4d9f96f3f1e416900b7b594f560aeece3c3b97b96bd8c31f535a56a9d5722b
- SSDEEP 6144:RcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8K:RSvO2x9mONvKRwLSFtsOkx2LIa+y
- TLSH T181B47D2AB6A0D076C4779579C4A257BAFBB1742137204ACFA390475A1F237E2BE3530D
- MD5 SHA1 SHA512 SSDEEP TLSH