Analysis
- max time kernel
148s - max time network
148s - 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, 23:04
Behavioral task
behavioral1
Sample
b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe
- Size 560KB
- Sample260809-22esmach39
- SHA256 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2
- MD5 3587846228233aa562fe430aef443dfd
- SHA1 a06f2366f454383a320d0cb0a0e5cfd8549f5e6f
- SHA512 29b8303000a479d525b605c2c4bbf0cfe3954f7d8d0c82b8ea72457888fc539d507d48648e15b1cc8af9eddd05c395000a867d64a0f3ae88ecdb7b04485f52e9
- SSDEEP 6144:oUJJuV1cdhIoA7vJ0CLoCgvDLe4AmFvirGcEOkCybEaQRuy8K:oYsVOdhElvkCgvDLe4usOkxHy
- TLSH T12AC48D29B6D0C036C5B39574C4A186BAEAB17432372549CFA3D5475A0F337E2BA7930E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4108 a6b117d9 - 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 59 114.114.114.114 4668 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe Destination IP 60 223.5.5.5 4668 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe Destination IP 4 114.114.114.114 4668 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe Destination IP 6 223.5.5.5 4668 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe Destination IP 19 114.114.114.114 4668 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe Destination IP 20 223.5.5.5 4668 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache a6b117d9 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content a6b117d9 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 a6b117d9 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 a6b117d9 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 a6b117d9 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft a6b117d9 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData a6b117d9 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 a6b117d9 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 a6b117d9 File created C:\Windows\SysWOW64\a6b117d9 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE a6b117d9 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies a6b117d9 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 a6b117d9 -
resource yara_rule behavioral2/memory/4668-0-0x0000000000A60000-0x0000000000AEC000-memory.dmp upx behavioral2/files/0x000d000000019cb1-2.dat upx behavioral2/memory/4108-3-0x0000000000030000-0x00000000000BC000-memory.dmp upx behavioral2/memory/4668-16-0x0000000000A60000-0x0000000000AEC000-memory.dmp upx behavioral2/memory/4108-17-0x0000000000030000-0x00000000000BC000-memory.dmp upx behavioral2/memory/4108-26-0x0000000000030000-0x00000000000BC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\4feaf8 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe File opened for modification C:\Windows\465498 a6b117d9 - 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 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a6b117d9 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ a6b117d9 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" a6b117d9 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" a6b117d9 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" a6b117d9 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" a6b117d9 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix a6b117d9 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" a6b117d9 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing a6b117d9 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" a6b117d9 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 4108 a6b117d9 4108 a6b117d9 4108 a6b117d9 4108 a6b117d9 4108 a6b117d9 4108 a6b117d9 4108 a6b117d9 4108 a6b117d9 4668 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe 4668 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe 4668 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe 4668 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe 4668 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe 4668 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe 4668 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe 4668 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe 4668 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe 4668 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe 4668 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe 4668 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe 4668 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe 4668 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4668 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe Token: SeTcbPrivilege 4668 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe Token: SeDebugPrivilege 4108 a6b117d9 Token: SeTcbPrivilege 4108 a6b117d9
Processes
-
C:\Users\Admin\AppData\Local\Temp\b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe"C:\Users\Admin\AppData\Local\Temp\b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.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:4668
-
C:\Windows\Syswow64\a6b117d9C:\Windows\Syswow64\a6b117d91⤵
- 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:4108
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\a6b117d9
- Size 560KB
- SHA256 5155b0eb9171bd7e9a346851c8269c5ca0cae6207b09d190ba986290b43c9633
- MD5 d0637419f5f49792537d14426cab73d7
- SHA1 e597db412b439e57ab1a4845f758b1a7810c1b1a
- SHA512 7d789839806e8b93c66c655b784be29e7037daf9a16249ac4d1fbdbd8835cdf30a59da84d24fedcdaa9bf9290e9757765addd6db640d50f7bd1b818555d04293
- SSDEEP 6144:sUJJuV1cdhIoA7vJ0CLoCgvDLe4AmFvirGcEOkCybEaQRuy8K:sYsVOdhElvkCgvDLe4usOkxHy
- TLSH T12FC48D29B6D0C036C5B39574C4A186BAEAB17432372549CFA3D5475A0F337E2BA7930E
- MD5 SHA1 SHA512 SSDEEP TLSH