Analysis
- max time kernel
149s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
02/06/2026, 09:15
Behavioral task
behavioral1
Sample
c330f854da5e333a9a681b8dd9b9f2867bcb30331856e68642f5f0424a271bd1.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target c330f854da5e333a9a681b8dd9b9f2867bcb30331856e68642f5f0424a271bd1.exe
- Size 560KB
- Sample260602-k73cfaaz8p
- SHA256 c330f854da5e333a9a681b8dd9b9f2867bcb30331856e68642f5f0424a271bd1
- MD5 6168a5244889a02ce1865e79cf34dcb3
- SHA1 22974a344d4ac54a8c2e66bb24f5c956fc7bb7d3
- SHA512 741daaf61a89af032ecbdc35a44844c5d9584b6d436632f07ca0b96c6543f6959fd530d598b37c2f3f7c860f623fe958e64c04e1640d9683df3834ad1d5cfd8a
- SSDEEP 6144:nUJJuV1cdhIoA7vJ0CLoCgvDLe4AmFvirGcEOkCybEaQRuy8K:nYsVOdhElvkCgvDLe4usOkxHy
- TLSH T166C48D29B6D0C036C5B39574C4A186BAEAB17432372549CFA3D5475A0F337E2BA7930E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 3964 3b67e59f - 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 4692 c330f854da5e333a9a681b8dd9b9f2867bcb30331856e68642f5f0424a271bd1.exe Destination IP 2 223.5.5.5 4692 c330f854da5e333a9a681b8dd9b9f2867bcb30331856e68642f5f0424a271bd1.exe Destination IP 8 114.114.114.114 4692 c330f854da5e333a9a681b8dd9b9f2867bcb30331856e68642f5f0424a271bd1.exe Destination IP 9 223.5.5.5 4692 c330f854da5e333a9a681b8dd9b9f2867bcb30331856e68642f5f0424a271bd1.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 3b67e59f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 3b67e59f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 3b67e59f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 3b67e59f File created C:\Windows\SysWOW64\3b67e59f c330f854da5e333a9a681b8dd9b9f2867bcb30331856e68642f5f0424a271bd1.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 3b67e59f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 3b67e59f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 3b67e59f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 3b67e59f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 3b67e59f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 3b67e59f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 3b67e59f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 3b67e59f -
resource yara_rule behavioral2/memory/4692-0-0x00000000008F0000-0x000000000097C000-memory.dmp upx behavioral2/files/0x00050000000259e8-2.dat upx behavioral2/memory/3964-4-0x0000000000820000-0x00000000008AC000-memory.dmp upx behavioral2/memory/4692-10-0x00000000008F0000-0x000000000097C000-memory.dmp upx behavioral2/memory/3964-11-0x0000000000820000-0x00000000008AC000-memory.dmp upx behavioral2/memory/3964-21-0x0000000000820000-0x00000000008AC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\43dd78 3b67e59f File opened for modification C:\Windows\505428 c330f854da5e333a9a681b8dd9b9f2867bcb30331856e68642f5f0424a271bd1.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 3b67e59f Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language c330f854da5e333a9a681b8dd9b9f2867bcb30331856e68642f5f0424a271bd1.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:" 3b67e59f Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 3b67e59f Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 3b67e59f Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 3b67e59f Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 3b67e59f Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 3b67e59f Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 3b67e59f Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 3b67e59f Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 3b67e59f - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 3964 3b67e59f 3964 3b67e59f 3964 3b67e59f 3964 3b67e59f 3964 3b67e59f 3964 3b67e59f 3964 3b67e59f 3964 3b67e59f 4692 c330f854da5e333a9a681b8dd9b9f2867bcb30331856e68642f5f0424a271bd1.exe 4692 c330f854da5e333a9a681b8dd9b9f2867bcb30331856e68642f5f0424a271bd1.exe 4692 c330f854da5e333a9a681b8dd9b9f2867bcb30331856e68642f5f0424a271bd1.exe 4692 c330f854da5e333a9a681b8dd9b9f2867bcb30331856e68642f5f0424a271bd1.exe 4692 c330f854da5e333a9a681b8dd9b9f2867bcb30331856e68642f5f0424a271bd1.exe 4692 c330f854da5e333a9a681b8dd9b9f2867bcb30331856e68642f5f0424a271bd1.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4692 c330f854da5e333a9a681b8dd9b9f2867bcb30331856e68642f5f0424a271bd1.exe Token: SeTcbPrivilege 4692 c330f854da5e333a9a681b8dd9b9f2867bcb30331856e68642f5f0424a271bd1.exe Token: SeDebugPrivilege 3964 3b67e59f Token: SeTcbPrivilege 3964 3b67e59f
Processes
-
C:\Users\Admin\AppData\Local\Temp\c330f854da5e333a9a681b8dd9b9f2867bcb30331856e68642f5f0424a271bd1.exe"C:\Users\Admin\AppData\Local\Temp\c330f854da5e333a9a681b8dd9b9f2867bcb30331856e68642f5f0424a271bd1.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\3b67e59fC:\Windows\Syswow64\3b67e59f1⤵
- 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:3964
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Windows\SysWOW64\3b67e59f
- Size 560KB
- SHA256 a699b303da5548fae755ca90bc7b0b4f54b43a04c780677de2653e2ba7aa9161
- MD5 3341f9403cb99584560ab089e9f2c107
- SHA1 37f12bde6318c61d5353bc0aa86a103a4f3606cb
- SHA512 0bd2c06dcd2cd381a49f8fcaeff2f4732c8a3f581c0eacc05ca08050298dbd749b5dcd6d33ed874a6df584158dbc2829ebd06c50172f963b44fbc1c724c4d4e5
- SSDEEP 6144:JUJJuV1cdhIoA7vJ0CLoCgvDLe4AmFvirGcEOkCybEaQRuy8K:JYsVOdhElvkCgvDLe4usOkxHy
- TLSH T13DC48D29B6D0C036C5B39574C4A186BAEAB17432372549CFA3D5475A0F337E2BA7930E
- MD5 SHA1 SHA512 SSDEEP TLSH