Analysis
- max time kernel
150s - max time network
153s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
20/08/2026, 20:53
Behavioral task
behavioral1
Sample
efb00e75f1d18539e8a8194d2fc1b97567e89011f04950f5ac3838c7410020f7.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target efb00e75f1d18539e8a8194d2fc1b97567e89011f04950f5ac3838c7410020f7.exe
- Size 576KB
- Sample260820-zpcrdsff84
- SHA256 efb00e75f1d18539e8a8194d2fc1b97567e89011f04950f5ac3838c7410020f7
- MD5 400b5ac7fea2da10488368a7818a95be
- SHA1 bf36df9fc4cab5b77d63b604b44b60dfaf8676e0
- SHA512 5ec3178b6834bb1cb26267b7117a6a652e46f694f10aa1c27df952b7103008c675f215a36bdf4e99188990bbc5e416f0c2f2dcd64dfd22fc30cb0a7414fad498
- SSDEEP 6144:ocTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8K/:oSvO2x9mONvKRwLSFtsOkx2LIa+yx
- TLSH T1B7C46D26B6908072C4779578C4A257AAFBB1BC2127204ACFA390775A1F737D2BE3570D
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 412 c264c91 - 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 17 114.114.114.114 4692 efb00e75f1d18539e8a8194d2fc1b97567e89011f04950f5ac3838c7410020f7.exe Destination IP 18 223.5.5.5 4692 efb00e75f1d18539e8a8194d2fc1b97567e89011f04950f5ac3838c7410020f7.exe Destination IP 1 114.114.114.114 4692 efb00e75f1d18539e8a8194d2fc1b97567e89011f04950f5ac3838c7410020f7.exe Destination IP 4 223.5.5.5 4692 efb00e75f1d18539e8a8194d2fc1b97567e89011f04950f5ac3838c7410020f7.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft c264c91 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache c264c91 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content c264c91 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 c264c91 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 c264c91 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 c264c91 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 c264c91 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData c264c91 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 c264c91 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 c264c91 File created C:\Windows\SysWOW64\c264c91 efb00e75f1d18539e8a8194d2fc1b97567e89011f04950f5ac3838c7410020f7.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE c264c91 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies c264c91 -
resource yara_rule behavioral2/memory/4692-0-0x0000000000150000-0x00000000001DC000-memory.dmp upx behavioral2/files/0x000c000000019cb1-2.dat upx behavioral2/memory/412-3-0x00000000003B0000-0x000000000043C000-memory.dmp upx behavioral2/memory/4692-16-0x0000000000150000-0x00000000001DC000-memory.dmp upx behavioral2/memory/412-17-0x00000000003B0000-0x000000000043C000-memory.dmp upx behavioral2/memory/412-34-0x00000000003B0000-0x000000000043C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\70db8 c264c91 File opened for modification C:\Windows\505428 efb00e75f1d18539e8a8194d2fc1b97567e89011f04950f5ac3838c7410020f7.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 c264c91 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language efb00e75f1d18539e8a8194d2fc1b97567e89011f04950f5ac3838c7410020f7.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:" c264c91 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" c264c91 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ c264c91 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" c264c91 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" c264c91 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing c264c91 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix c264c91 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" c264c91 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" c264c91 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 412 c264c91 412 c264c91 412 c264c91 412 c264c91 412 c264c91 412 c264c91 412 c264c91 412 c264c91 4692 efb00e75f1d18539e8a8194d2fc1b97567e89011f04950f5ac3838c7410020f7.exe 4692 efb00e75f1d18539e8a8194d2fc1b97567e89011f04950f5ac3838c7410020f7.exe 4692 efb00e75f1d18539e8a8194d2fc1b97567e89011f04950f5ac3838c7410020f7.exe 4692 efb00e75f1d18539e8a8194d2fc1b97567e89011f04950f5ac3838c7410020f7.exe 4692 efb00e75f1d18539e8a8194d2fc1b97567e89011f04950f5ac3838c7410020f7.exe 4692 efb00e75f1d18539e8a8194d2fc1b97567e89011f04950f5ac3838c7410020f7.exe 4692 efb00e75f1d18539e8a8194d2fc1b97567e89011f04950f5ac3838c7410020f7.exe 4692 efb00e75f1d18539e8a8194d2fc1b97567e89011f04950f5ac3838c7410020f7.exe 4692 efb00e75f1d18539e8a8194d2fc1b97567e89011f04950f5ac3838c7410020f7.exe 4692 efb00e75f1d18539e8a8194d2fc1b97567e89011f04950f5ac3838c7410020f7.exe 4692 efb00e75f1d18539e8a8194d2fc1b97567e89011f04950f5ac3838c7410020f7.exe 4692 efb00e75f1d18539e8a8194d2fc1b97567e89011f04950f5ac3838c7410020f7.exe 4692 efb00e75f1d18539e8a8194d2fc1b97567e89011f04950f5ac3838c7410020f7.exe 4692 efb00e75f1d18539e8a8194d2fc1b97567e89011f04950f5ac3838c7410020f7.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4692 efb00e75f1d18539e8a8194d2fc1b97567e89011f04950f5ac3838c7410020f7.exe Token: SeTcbPrivilege 4692 efb00e75f1d18539e8a8194d2fc1b97567e89011f04950f5ac3838c7410020f7.exe Token: SeDebugPrivilege 412 c264c91 Token: SeTcbPrivilege 412 c264c91
Processes
-
C:\Users\Admin\AppData\Local\Temp\efb00e75f1d18539e8a8194d2fc1b97567e89011f04950f5ac3838c7410020f7.exe"C:\Users\Admin\AppData\Local\Temp\efb00e75f1d18539e8a8194d2fc1b97567e89011f04950f5ac3838c7410020f7.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:4692
-
C:\Windows\Syswow64\c264c91C:\Windows\Syswow64\c264c911⤵
- 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:412
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\c264c91
- Size 576KB
- SHA256 3c8fbce56cce7c167a5c6f77557247e647027865a556415d7504ee92553d5a67
- MD5 138e52cbf271f65ba05fb8b7e90fcd44
- SHA1 51bfc7b2ea6135b267632501c0f0c3c8ab4a45f3
- SHA512 f87aaa2a554ef0d1cca471d23389128d264d08c72a09e2ca56b86276a8378182c86abe2bf48130d0b2dda18339b4bb8c72f3bc372dc335969709b40421fa2169
- SSDEEP 6144:+cTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8K/:+SvO2x9mONvKRwLSFtsOkx2LIa+yx
- TLSH T1D1C46D26B6908072C4779578C4A257AAFBB1BC2127204ACFA390775A1F737D2BE3570D
- MD5 SHA1 SHA512 SSDEEP TLSH