Analysis
- max time kernel
148s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
01/08/2026, 18:00
Behavioral task
behavioral1
Sample
ef017744040fe63c80a6d7ec2b5ade7302e0c5c3f50b181baa37a9b4e447b577.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target ef017744040fe63c80a6d7ec2b5ade7302e0c5c3f50b181baa37a9b4e447b577.exe
- Size 560KB
- Sample260801-wlngyaee97
- SHA256 ef017744040fe63c80a6d7ec2b5ade7302e0c5c3f50b181baa37a9b4e447b577
- MD5 faf3b3bf63b06cc7b7641d9bacba1ef1
- SHA1 18a94f45a30f11d0b15ec6553d9ff2fe23790d0f
- SHA512 db36cfefda682d21ad3fff2252b4b2cb0a07ec346168b9a314ee8679f5e4f386d9a1c4dd5e010799bcbfd48c22fbda86d883c4defcaada410cd5563059009681
- SSDEEP 6144:14ZaN1cb90oOTFmIFLq0cvnXhLCqj2EFNirGcEOkCybEaQRuy8K:1rNOb9+sIF+0cvnXhLCqEsOkxHy
- TLSH T10EC48D29B6E0C076C4B79578C4A186B6FAB17832372459CFA394075A1F337E2BA3570D
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4272 63eff3c8 - Unexpected DNS network traffic destination 6 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 1400 ef017744040fe63c80a6d7ec2b5ade7302e0c5c3f50b181baa37a9b4e447b577.exe Destination IP 2 223.5.5.5 1400 ef017744040fe63c80a6d7ec2b5ade7302e0c5c3f50b181baa37a9b4e447b577.exe Destination IP 12 114.114.114.114 1400 ef017744040fe63c80a6d7ec2b5ade7302e0c5c3f50b181baa37a9b4e447b577.exe Destination IP 13 223.5.5.5 1400 ef017744040fe63c80a6d7ec2b5ade7302e0c5c3f50b181baa37a9b4e447b577.exe Destination IP 52 114.114.114.114 1400 ef017744040fe63c80a6d7ec2b5ade7302e0c5c3f50b181baa37a9b4e447b577.exe Destination IP 53 223.5.5.5 1400 ef017744040fe63c80a6d7ec2b5ade7302e0c5c3f50b181baa37a9b4e447b577.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 63eff3c8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 63eff3c8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 63eff3c8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 63eff3c8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 63eff3c8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 63eff3c8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 63eff3c8 File created C:\Windows\SysWOW64\63eff3c8 ef017744040fe63c80a6d7ec2b5ade7302e0c5c3f50b181baa37a9b4e447b577.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 63eff3c8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 63eff3c8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 63eff3c8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 63eff3c8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 63eff3c8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 63eff3c8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 63eff3c8 -
resource yara_rule behavioral2/memory/1400-0-0x00000000008C0000-0x000000000094C000-memory.dmp upx behavioral2/files/0x00160000000115f1-2.dat upx behavioral2/memory/4272-3-0x0000000000380000-0x000000000040C000-memory.dmp upx behavioral2/memory/1400-10-0x00000000008C0000-0x000000000094C000-memory.dmp upx behavioral2/memory/4272-11-0x0000000000380000-0x000000000040C000-memory.dmp upx behavioral2/memory/4272-34-0x0000000000380000-0x000000000040C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\492360 63eff3c8 File opened for modification C:\Windows\17f7f0 ef017744040fe63c80a6d7ec2b5ade7302e0c5c3f50b181baa37a9b4e447b577.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 ef017744040fe63c80a6d7ec2b5ade7302e0c5c3f50b181baa37a9b4e447b577.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 63eff3c8 - 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:" 63eff3c8 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 63eff3c8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 63eff3c8 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 63eff3c8 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 63eff3c8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 63eff3c8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 63eff3c8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 63eff3c8 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 63eff3c8 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 4272 63eff3c8 4272 63eff3c8 4272 63eff3c8 4272 63eff3c8 4272 63eff3c8 4272 63eff3c8 4272 63eff3c8 4272 63eff3c8 1400 ef017744040fe63c80a6d7ec2b5ade7302e0c5c3f50b181baa37a9b4e447b577.exe 1400 ef017744040fe63c80a6d7ec2b5ade7302e0c5c3f50b181baa37a9b4e447b577.exe 1400 ef017744040fe63c80a6d7ec2b5ade7302e0c5c3f50b181baa37a9b4e447b577.exe 1400 ef017744040fe63c80a6d7ec2b5ade7302e0c5c3f50b181baa37a9b4e447b577.exe 1400 ef017744040fe63c80a6d7ec2b5ade7302e0c5c3f50b181baa37a9b4e447b577.exe 1400 ef017744040fe63c80a6d7ec2b5ade7302e0c5c3f50b181baa37a9b4e447b577.exe 1400 ef017744040fe63c80a6d7ec2b5ade7302e0c5c3f50b181baa37a9b4e447b577.exe 1400 ef017744040fe63c80a6d7ec2b5ade7302e0c5c3f50b181baa37a9b4e447b577.exe 1400 ef017744040fe63c80a6d7ec2b5ade7302e0c5c3f50b181baa37a9b4e447b577.exe 1400 ef017744040fe63c80a6d7ec2b5ade7302e0c5c3f50b181baa37a9b4e447b577.exe 1400 ef017744040fe63c80a6d7ec2b5ade7302e0c5c3f50b181baa37a9b4e447b577.exe 1400 ef017744040fe63c80a6d7ec2b5ade7302e0c5c3f50b181baa37a9b4e447b577.exe 1400 ef017744040fe63c80a6d7ec2b5ade7302e0c5c3f50b181baa37a9b4e447b577.exe 1400 ef017744040fe63c80a6d7ec2b5ade7302e0c5c3f50b181baa37a9b4e447b577.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1400 ef017744040fe63c80a6d7ec2b5ade7302e0c5c3f50b181baa37a9b4e447b577.exe Token: SeTcbPrivilege 1400 ef017744040fe63c80a6d7ec2b5ade7302e0c5c3f50b181baa37a9b4e447b577.exe Token: SeDebugPrivilege 4272 63eff3c8 Token: SeTcbPrivilege 4272 63eff3c8
Processes
-
C:\Users\Admin\AppData\Local\Temp\ef017744040fe63c80a6d7ec2b5ade7302e0c5c3f50b181baa37a9b4e447b577.exe"C:\Users\Admin\AppData\Local\Temp\ef017744040fe63c80a6d7ec2b5ade7302e0c5c3f50b181baa37a9b4e447b577.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:1400
-
C:\Windows\Syswow64\63eff3c8C:\Windows\Syswow64\63eff3c81⤵
- 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:4272
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\63eff3c8
- Size 560KB
- SHA256 099aae9cd0f4379283eb851a23a9f56bf1dcd871427bc1978c25b44ff5d4c569
- MD5 98ab1f53ac24e87279761cded6377ff1
- SHA1 ae1f822590e8094f2b40080b3a9d335cd9b04de3
- SHA512 9cbd5414ae7437a425e4c431420fdd0e356a7b9da77d8bfb8e8fb8426a7dcb69aa55d9da0b2ffa3c5522d26b026162cf2f758bab3d0da5b518317981cabfcd3e
- SSDEEP 6144:d4ZaN1cb90oOTFmIFLq0cvnXhLCqj2EFNirGcEOkCybEaQRuy8K:drNOb9+sIF+0cvnXhLCqEsOkxHy
- TLSH T16EC48D29B6E0C076C4B79578C4A186B6FAB17832372459CFA394075A1F337E2BA3570D
- MD5 SHA1 SHA512 SSDEEP TLSH