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
21/08/2026, 02:55
Behavioral task
behavioral1
Sample
720399a6ee87621324fdad05407d15818e788c312c5308640f57153d8ce69d3a.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target 720399a6ee87621324fdad05407d15818e788c312c5308640f57153d8ce69d3a.exe
- Size 2.5MB
- Sample260821-deyp8a1fra
- SHA256 720399a6ee87621324fdad05407d15818e788c312c5308640f57153d8ce69d3a
- MD5 97ef27560ab9fe0cd605ba4f6b2f1a88
- SHA1 9fabe43f6c44bccb90759de0c52b2384585bfce2
- SHA512 5ca877c5efb076f2013819c1f5347d12891265084e6be677dd8e938bfe45b03994c8f9334a1f61506eacd28ba075640c449878d4455628467fbf542e07abbeb8
- SSDEEP 49152:SHHKe2WQX56/OJdJCXDrsOFZMjHfUTGkQy5QZuTtN:SnKGEkOhCXHHFZMjHfUKkVWsT
- TLSH T166C58E31E6818136D1B34671C6FA57BBA5247C211721A5CFA3C87A2A1F736D3AE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 1344 c3bf7fac - 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 4624 720399a6ee87621324fdad05407d15818e788c312c5308640f57153d8ce69d3a.exe Destination IP 4 223.5.5.5 4624 720399a6ee87621324fdad05407d15818e788c312c5308640f57153d8ce69d3a.exe Destination IP 13 114.114.114.114 4624 720399a6ee87621324fdad05407d15818e788c312c5308640f57153d8ce69d3a.exe Destination IP 14 223.5.5.5 4624 720399a6ee87621324fdad05407d15818e788c312c5308640f57153d8ce69d3a.exe - Drops file in System32 directory 11 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content c3bf7fac File created C:\Windows\SysWOW64\c3bf7fac 720399a6ee87621324fdad05407d15818e788c312c5308640f57153d8ce69d3a.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 c3bf7fac File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE c3bf7fac File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache c3bf7fac File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\AAD646CB44373074ADE741C38400E7E1 c3bf7fac File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies c3bf7fac File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 c3bf7fac File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft c3bf7fac File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData c3bf7fac File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\AAD646CB44373074ADE741C38400E7E1 c3bf7fac -
resource yara_rule behavioral2/memory/4624-0-0x0000000000230000-0x00000000002BC000-memory.dmp upx behavioral2/files/0x0008000000016ca8-2.dat upx behavioral2/memory/1344-3-0x0000000000DE0000-0x0000000000E6C000-memory.dmp upx behavioral2/memory/4624-10-0x0000000000230000-0x00000000002BC000-memory.dmp upx behavioral2/memory/1344-11-0x0000000000DE0000-0x0000000000E6C000-memory.dmp upx behavioral2/memory/1344-27-0x0000000000DE0000-0x0000000000E6C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\170280 c3bf7fac File opened for modification C:\Windows\4f2a20 720399a6ee87621324fdad05407d15818e788c312c5308640f57153d8ce69d3a.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 720399a6ee87621324fdad05407d15818e788c312c5308640f57153d8ce69d3a.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language c3bf7fac - 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\History\CachePrefix = "Visited:" c3bf7fac Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" c3bf7fac Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" c3bf7fac Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing c3bf7fac Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix c3bf7fac Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" c3bf7fac Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ c3bf7fac Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" c3bf7fac Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" c3bf7fac - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 1344 c3bf7fac 1344 c3bf7fac 1344 c3bf7fac 1344 c3bf7fac 1344 c3bf7fac 1344 c3bf7fac 1344 c3bf7fac 1344 c3bf7fac 4624 720399a6ee87621324fdad05407d15818e788c312c5308640f57153d8ce69d3a.exe 4624 720399a6ee87621324fdad05407d15818e788c312c5308640f57153d8ce69d3a.exe 4624 720399a6ee87621324fdad05407d15818e788c312c5308640f57153d8ce69d3a.exe 4624 720399a6ee87621324fdad05407d15818e788c312c5308640f57153d8ce69d3a.exe 4624 720399a6ee87621324fdad05407d15818e788c312c5308640f57153d8ce69d3a.exe 4624 720399a6ee87621324fdad05407d15818e788c312c5308640f57153d8ce69d3a.exe 4624 720399a6ee87621324fdad05407d15818e788c312c5308640f57153d8ce69d3a.exe 4624 720399a6ee87621324fdad05407d15818e788c312c5308640f57153d8ce69d3a.exe 4624 720399a6ee87621324fdad05407d15818e788c312c5308640f57153d8ce69d3a.exe 4624 720399a6ee87621324fdad05407d15818e788c312c5308640f57153d8ce69d3a.exe 4624 720399a6ee87621324fdad05407d15818e788c312c5308640f57153d8ce69d3a.exe 4624 720399a6ee87621324fdad05407d15818e788c312c5308640f57153d8ce69d3a.exe 4624 720399a6ee87621324fdad05407d15818e788c312c5308640f57153d8ce69d3a.exe 4624 720399a6ee87621324fdad05407d15818e788c312c5308640f57153d8ce69d3a.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4624 720399a6ee87621324fdad05407d15818e788c312c5308640f57153d8ce69d3a.exe Token: SeTcbPrivilege 4624 720399a6ee87621324fdad05407d15818e788c312c5308640f57153d8ce69d3a.exe Token: SeDebugPrivilege 1344 c3bf7fac Token: SeTcbPrivilege 1344 c3bf7fac
Processes
-
C:\Users\Admin\AppData\Local\Temp\720399a6ee87621324fdad05407d15818e788c312c5308640f57153d8ce69d3a.exe"C:\Users\Admin\AppData\Local\Temp\720399a6ee87621324fdad05407d15818e788c312c5308640f57153d8ce69d3a.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:4624
-
C:\Windows\Syswow64\c3bf7facC:\Windows\Syswow64\c3bf7fac1⤵
- 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:1344
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\c3bf7fac
- Size 2.5MB
- SHA256 f67e9ce0ff849b61ad93f571857f2611930b274e4600eecb301882da4377b325
- MD5 b1cbddcabc110e24f74b7fee038bc265
- SHA1 fadab8ea00c9cf2f9f326726a731fade65cf8b1c
- SHA512 50862c0063011da9efa28c7a8d9952cab3f67058f8a0251a309a9d44a0a0e217431dbe227e696f3192eb86b6e7a04a7d03655fc99e64a250f7bb7e0fa5b7f3d1
- SSDEEP 49152:7HHKe2WQX56/OJdJCXDrsOFZMjHfUTGkQy5QZuTtN:7nKGEkOhCXHHFZMjHfUKkVWsT
- TLSH T1F6C58E31E6818136D1B34671C6FA57BBA5247C211721A5CFA3C87A2A1F736D3AE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH