Analysis
- max time kernel
150s - max time network
147s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
17/08/2026, 00:55
Behavioral task
behavioral1
Sample
e3ec88da8b349ad6a46d54e6d6d05cde01cdacce46fd0d88da0d9a1270d0da52.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target e3ec88da8b349ad6a46d54e6d6d05cde01cdacce46fd0d88da0d9a1270d0da52.exe
- Size 2.9MB
- Sample260817-a91xaagg78
- SHA256 e3ec88da8b349ad6a46d54e6d6d05cde01cdacce46fd0d88da0d9a1270d0da52
- MD5 5655e9dad3c1180f6fc5711523aa78db
- SHA1 7579a25ed0af26a7c77e72eba1f49e3a8040e763
- SHA512 9917ab0029f5fa573cb4f56fad6d94ffd8b06b00e7c8128367796afaa35010ee7bc163c242953c351df2dcd667b7eea070f53e5f98b76b443b57ec70bca8db33
- SSDEEP 49152:SHHKe2WQX56/OJdJCXDrsOFZMjHfUTGkQy5QZuTtS0rQMYOF:SnKGEkOhCXHHFZMjHfUKkVWsM0r1F
- TLSH T1BAD59E31B6818036D1B7467186FA47BBA5257C211721A5CFB3C47B2A1FB36D2AE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 2212 b91b9568 - 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 5 223.5.5.5 5596 e3ec88da8b349ad6a46d54e6d6d05cde01cdacce46fd0d88da0d9a1270d0da52.exe Destination IP 17 114.114.114.114 5596 e3ec88da8b349ad6a46d54e6d6d05cde01cdacce46fd0d88da0d9a1270d0da52.exe Destination IP 18 223.5.5.5 5596 e3ec88da8b349ad6a46d54e6d6d05cde01cdacce46fd0d88da0d9a1270d0da52.exe Destination IP 3 114.114.114.114 5596 e3ec88da8b349ad6a46d54e6d6d05cde01cdacce46fd0d88da0d9a1270d0da52.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 b91b9568 File created C:\Windows\SysWOW64\b91b9568 e3ec88da8b349ad6a46d54e6d6d05cde01cdacce46fd0d88da0d9a1270d0da52.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 b91b9568 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE b91b9568 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies b91b9568 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft b91b9568 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData b91b9568 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 b91b9568 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 b91b9568 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 b91b9568 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache b91b9568 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 b91b9568 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content b91b9568 -
resource yara_rule behavioral2/memory/5596-0-0x0000000000870000-0x00000000008FC000-memory.dmp upx behavioral2/files/0x000e000000019c8f-2.dat upx behavioral2/memory/2212-3-0x00000000002B0000-0x000000000033C000-memory.dmp upx behavioral2/memory/5596-16-0x0000000000870000-0x00000000008FC000-memory.dmp upx behavioral2/memory/2212-17-0x00000000002B0000-0x000000000033C000-memory.dmp upx behavioral2/memory/2212-32-0x00000000002B0000-0x000000000033C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\25dec8 b91b9568 File opened for modification C:\Windows\5fce38 e3ec88da8b349ad6a46d54e6d6d05cde01cdacce46fd0d88da0d9a1270d0da52.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 e3ec88da8b349ad6a46d54e6d6d05cde01cdacce46fd0d88da0d9a1270d0da52.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b91b9568 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ b91b9568 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" b91b9568 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing b91b9568 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix b91b9568 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" b91b9568 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" b91b9568 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" b91b9568 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" b91b9568 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" b91b9568 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 2212 b91b9568 2212 b91b9568 2212 b91b9568 2212 b91b9568 2212 b91b9568 2212 b91b9568 2212 b91b9568 2212 b91b9568 5596 e3ec88da8b349ad6a46d54e6d6d05cde01cdacce46fd0d88da0d9a1270d0da52.exe 5596 e3ec88da8b349ad6a46d54e6d6d05cde01cdacce46fd0d88da0d9a1270d0da52.exe 5596 e3ec88da8b349ad6a46d54e6d6d05cde01cdacce46fd0d88da0d9a1270d0da52.exe 5596 e3ec88da8b349ad6a46d54e6d6d05cde01cdacce46fd0d88da0d9a1270d0da52.exe 5596 e3ec88da8b349ad6a46d54e6d6d05cde01cdacce46fd0d88da0d9a1270d0da52.exe 5596 e3ec88da8b349ad6a46d54e6d6d05cde01cdacce46fd0d88da0d9a1270d0da52.exe 5596 e3ec88da8b349ad6a46d54e6d6d05cde01cdacce46fd0d88da0d9a1270d0da52.exe 5596 e3ec88da8b349ad6a46d54e6d6d05cde01cdacce46fd0d88da0d9a1270d0da52.exe 5596 e3ec88da8b349ad6a46d54e6d6d05cde01cdacce46fd0d88da0d9a1270d0da52.exe 5596 e3ec88da8b349ad6a46d54e6d6d05cde01cdacce46fd0d88da0d9a1270d0da52.exe 5596 e3ec88da8b349ad6a46d54e6d6d05cde01cdacce46fd0d88da0d9a1270d0da52.exe 5596 e3ec88da8b349ad6a46d54e6d6d05cde01cdacce46fd0d88da0d9a1270d0da52.exe 5596 e3ec88da8b349ad6a46d54e6d6d05cde01cdacce46fd0d88da0d9a1270d0da52.exe 5596 e3ec88da8b349ad6a46d54e6d6d05cde01cdacce46fd0d88da0d9a1270d0da52.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 5596 e3ec88da8b349ad6a46d54e6d6d05cde01cdacce46fd0d88da0d9a1270d0da52.exe Token: SeTcbPrivilege 5596 e3ec88da8b349ad6a46d54e6d6d05cde01cdacce46fd0d88da0d9a1270d0da52.exe Token: SeDebugPrivilege 2212 b91b9568 Token: SeTcbPrivilege 2212 b91b9568
Processes
-
C:\Users\Admin\AppData\Local\Temp\e3ec88da8b349ad6a46d54e6d6d05cde01cdacce46fd0d88da0d9a1270d0da52.exe"C:\Users\Admin\AppData\Local\Temp\e3ec88da8b349ad6a46d54e6d6d05cde01cdacce46fd0d88da0d9a1270d0da52.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:5596
-
C:\Windows\Syswow64\b91b9568C:\Windows\Syswow64\b91b95681⤵
- 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:2212
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\b91b9568
- Size 2.9MB
- SHA256 b8f103dc1750a5c34196d5a72c6173aee63e1f3577b2fea0f5d8cff5f4d1155d
- MD5 f260c74e243977b082866344b56c9100
- SHA1 d96dc1919d7303dca9a7b41d5f469fd18333b16e
- SHA512 405b383eefa2cd99c3bb9e1345fbc06f170156083e70b17c648f7cfae903a7347c59233a938c8a1349650f248215a8180c799c16df5c4ffd3ff47c9808ab846d
- SSDEEP 49152:jHHKe2WQX56/OJdJCXDrsOFZMjHfUTGkQy5QZuTtS0rQMYOF:jnKGEkOhCXHHFZMjHfUKkVWsM0r1F
- TLSH T121D59E31B6818036D1B7467186FA47BBA5257C211721A5CFB3C47B2A1FB36D2AE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH