Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-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 3768 31b45364 - 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 3 114.114.114.114 3212 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe Destination IP 6 223.5.5.5 3212 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe Destination IP 29 114.114.114.114 3212 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe Destination IP 30 223.5.5.5 3212 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 31b45364 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 31b45364 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 31b45364 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 31b45364 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 31b45364 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 31b45364 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 31b45364 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 31b45364 File created C:\Windows\SysWOW64\31b45364 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 31b45364 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 31b45364 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 31b45364 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 31b45364 -
resource yara_rule behavioral1/memory/3212-0-0x00000000008E0000-0x000000000096C000-memory.dmp upx behavioral1/files/0x0016000000024300-2.dat upx behavioral1/memory/3768-4-0x0000000000560000-0x00000000005EC000-memory.dmp upx behavioral1/memory/3212-10-0x00000000008E0000-0x000000000096C000-memory.dmp upx behavioral1/memory/3768-11-0x0000000000560000-0x00000000005EC000-memory.dmp upx behavioral1/memory/3768-30-0x0000000000560000-0x00000000005EC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\408270 31b45364 File opened for modification C:\Windows\36fd98 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.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 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 31b45364 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 31b45364 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 31b45364 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 31b45364 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 31b45364 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 31b45364 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 31b45364 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 31b45364 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 31b45364 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 31b45364 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 3768 31b45364 3768 31b45364 3768 31b45364 3768 31b45364 3768 31b45364 3768 31b45364 3768 31b45364 3768 31b45364 3212 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe 3212 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe 3212 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe 3212 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe 3212 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe 3212 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3212 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe Token: SeTcbPrivilege 3212 b16d1881a73a6b46c835ef8a2bffc16dff6f4072a52c72a081297a814ccca5a2.exe Token: SeDebugPrivilege 3768 31b45364 Token: SeTcbPrivilege 3768 31b45364
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:3212
-
C:\Windows\Syswow64\31b45364C:\Windows\Syswow64\31b453641⤵
- 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:3768
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Windows\SysWOW64\31b45364
- Size 560KB
- SHA256 d743521f0fa9d1adc0cb79240513fd2a28373e5ea496ee7fd6077904c62440c9
- MD5 5d20a3b85b4c926282427f88de59c8bb
- SHA1 348542d68e26204bd3401b273de123301a7f54da
- SHA512 1002857657cf8561be684fb51d56ed35e30b7a2fbaf32bd2a8c4d957b4cdc4db5ed9438cef9995d55c39144e37f2e7553650941eb436ac457f0be81816f29174
- SSDEEP 6144:UUJJuV1cdhIoA7vJ0CLoCgvDLe4AmFvirGcEOkCybEaQRuy8K:UYsVOdhElvkCgvDLe4usOkxHy
- TLSH T1A7C48D29B6D0C036C5B39574C4A186BAEAB17432372549CFA3D5475A0F337E2BA7930E
- MD5 SHA1 SHA512 SSDEEP TLSH