Analysis
- max time kernel
148s - max time network
151s - 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, 02:49
Behavioral task
behavioral1
Sample
bc65be28d3c00538e6185af517caa2fe7792858d37dc71cb7f5bff89f5481a01.exe
Resource
win10v2004-20260513-en
10 signatures
150 seconds
General
- Target bc65be28d3c00538e6185af517caa2fe7792858d37dc71cb7f5bff89f5481a01.exe
- Size 560KB
- Sample260809-daz3gssxct
- SHA256 bc65be28d3c00538e6185af517caa2fe7792858d37dc71cb7f5bff89f5481a01
- MD5 f24f6f4ea13644f8091bfaaa1db81fd0
- SHA1 25f716f96c0c72c765516e0297fdba748313af9f
- SHA512 bb1443cf0a84703943990e31ef7c277c28e6192f0de152d04bc32417d3153707ca0e1a51c22e9b1d234cac181b9ee731b014ae768c630b3b6c31283e6ef9490c
- SSDEEP 12288:e3Sgbu4VOGWPSqt6IpouYgCEmx1z725uRG9OArjlI6YeLm08XsOkx2LIa+y:OVOL4/gPXKCOkx2LFR
- TLSH T1F4C46D2AB6E0D076C4B79574C4A256A6FFB1B43127204ACF6390475A1F637E2BE3530E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 3748 3958adb8 - 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 4552 bc65be28d3c00538e6185af517caa2fe7792858d37dc71cb7f5bff89f5481a01.exe Destination IP 2 223.5.5.5 4552 bc65be28d3c00538e6185af517caa2fe7792858d37dc71cb7f5bff89f5481a01.exe Destination IP 9 114.114.114.114 4552 bc65be28d3c00538e6185af517caa2fe7792858d37dc71cb7f5bff89f5481a01.exe Destination IP 10 223.5.5.5 4552 bc65be28d3c00538e6185af517caa2fe7792858d37dc71cb7f5bff89f5481a01.exe - Drops file in System32 directory 5 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 3958adb8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 3958adb8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 3958adb8 File created C:\Windows\SysWOW64\3958adb8 bc65be28d3c00538e6185af517caa2fe7792858d37dc71cb7f5bff89f5481a01.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 3958adb8 -
resource yara_rule behavioral2/memory/4552-0-0x0000000000540000-0x00000000005CC000-memory.dmp upx behavioral2/files/0x000a000000019cc1-2.dat upx behavioral2/memory/3748-4-0x0000000000590000-0x000000000061C000-memory.dmp upx behavioral2/memory/4552-10-0x0000000000540000-0x00000000005CC000-memory.dmp upx behavioral2/memory/3748-11-0x0000000000590000-0x000000000061C000-memory.dmp upx behavioral2/memory/3748-28-0x0000000000590000-0x000000000061C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\402ac8 3958adb8 File opened for modification C:\Windows\4dee90 bc65be28d3c00538e6185af517caa2fe7792858d37dc71cb7f5bff89f5481a01.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 bc65be28d3c00538e6185af517caa2fe7792858d37dc71cb7f5bff89f5481a01.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 3958adb8 - Modifies data under HKEY_USERS 8 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 3958adb8 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 3958adb8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 3958adb8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 3958adb8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 3958adb8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 3958adb8 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 3958adb8 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 3958adb8 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 3748 3958adb8 3748 3958adb8 3748 3958adb8 3748 3958adb8 3748 3958adb8 3748 3958adb8 3748 3958adb8 3748 3958adb8 4552 bc65be28d3c00538e6185af517caa2fe7792858d37dc71cb7f5bff89f5481a01.exe 4552 bc65be28d3c00538e6185af517caa2fe7792858d37dc71cb7f5bff89f5481a01.exe 4552 bc65be28d3c00538e6185af517caa2fe7792858d37dc71cb7f5bff89f5481a01.exe 4552 bc65be28d3c00538e6185af517caa2fe7792858d37dc71cb7f5bff89f5481a01.exe 4552 bc65be28d3c00538e6185af517caa2fe7792858d37dc71cb7f5bff89f5481a01.exe 4552 bc65be28d3c00538e6185af517caa2fe7792858d37dc71cb7f5bff89f5481a01.exe 4552 bc65be28d3c00538e6185af517caa2fe7792858d37dc71cb7f5bff89f5481a01.exe 4552 bc65be28d3c00538e6185af517caa2fe7792858d37dc71cb7f5bff89f5481a01.exe 4552 bc65be28d3c00538e6185af517caa2fe7792858d37dc71cb7f5bff89f5481a01.exe 4552 bc65be28d3c00538e6185af517caa2fe7792858d37dc71cb7f5bff89f5481a01.exe 4552 bc65be28d3c00538e6185af517caa2fe7792858d37dc71cb7f5bff89f5481a01.exe 4552 bc65be28d3c00538e6185af517caa2fe7792858d37dc71cb7f5bff89f5481a01.exe 4552 bc65be28d3c00538e6185af517caa2fe7792858d37dc71cb7f5bff89f5481a01.exe 4552 bc65be28d3c00538e6185af517caa2fe7792858d37dc71cb7f5bff89f5481a01.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4552 bc65be28d3c00538e6185af517caa2fe7792858d37dc71cb7f5bff89f5481a01.exe Token: SeTcbPrivilege 4552 bc65be28d3c00538e6185af517caa2fe7792858d37dc71cb7f5bff89f5481a01.exe Token: SeDebugPrivilege 3748 3958adb8 Token: SeTcbPrivilege 3748 3958adb8
Processes
-
C:\Users\Admin\AppData\Local\Temp\bc65be28d3c00538e6185af517caa2fe7792858d37dc71cb7f5bff89f5481a01.exe"C:\Users\Admin\AppData\Local\Temp\bc65be28d3c00538e6185af517caa2fe7792858d37dc71cb7f5bff89f5481a01.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:4552
-
C:\Windows\Syswow64\3958adb8C:\Windows\Syswow64\3958adb81⤵
- 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:3748
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\3958adb8
- Size 560KB
- SHA256 0678cf94d1ace4c80d494bf105b4cd1e861384146658a7affe3c394df763323f
- MD5 1a58be9e780816be82a1f4b459a34deb
- SHA1 defd33bbdafc1254b08876c39d3aef6977a054ed
- SHA512 7e5206c1ca3f9209763236007f2bf4d7f8bd8be19c34975c9946118235baacd868a4d19ca924526ce438a29b52d1db0513657b116f9c28579d608bcefed5edb1
- SSDEEP 12288:b3Sgbu4VOGWPSqt6IpouYgCEmx1z725uRG9OArjlI6YeLm08XsOkx2LIa+y:JVOL4/gPXKCOkx2LFR
- TLSH T1B0C46D2AB6E0D076C4B79574C4A256A6FFB1B43127204ACF6390475A1F637E2BE3530E
- MD5 SHA1 SHA512 SSDEEP TLSH