Analysis
- max time kernel
150s - max time network
154s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
18/08/2026, 19:48
Behavioral task
behavioral1
Sample
6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe
- Size 560KB
- Sample260818-yjgbysyhmg
- SHA256 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b
- MD5 305f739abfc96b5033c5302d6d815fe1
- SHA1 a33cc9c3c608a4c9671c45a905b8a8b89f523e82
- SHA512 d279977b20dfd832b2cd8802f9421575e1ae9bfd5fc5cde45130fdcd282d0a0d86fc2602e2e9b53fede0d3b8acf7dfa3d575ff0500fe4b4855d61a72bc47fb6c
- SSDEEP 6144:agye71cE4poJTqvpQLXNKFyLWD1nFairGcEOkCybEaQRuy8K:aI7OE4kopQzNKFyLWDHsOkxHy
- TLSH T1FFC48C2AB690C076C4B7D534C5E197AAEAB17432372449CFA3D0075A1F237E2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4804 a77ee7f0 - Unexpected DNS network traffic destination 18 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 41 223.5.5.5 4952 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe Destination IP 103 223.5.5.5 4952 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe Destination IP 236 223.5.5.5 4952 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe Destination IP 377 223.5.5.5 4952 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe Destination IP 4 223.5.5.5 4952 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe Destination IP 95 114.114.114.114 4804 a77ee7f0 Destination IP 40 114.114.114.114 4952 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe Destination IP 96 223.5.5.5 4952 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe Destination IP 166 223.5.5.5 4952 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe Destination IP 292 114.114.114.114 4952 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe Destination IP 293 223.5.5.5 4952 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe Destination IP 323 223.5.5.5 4952 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe Destination IP 3 114.114.114.114 4952 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe Destination IP 102 114.114.114.114 4952 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe Destination IP 165 114.114.114.114 4952 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe Destination IP 235 114.114.114.114 4952 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe Destination IP 322 114.114.114.114 4952 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe Destination IP 376 114.114.114.114 4952 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 a77ee7f0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 a77ee7f0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft a77ee7f0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache a77ee7f0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData a77ee7f0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content a77ee7f0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 a77ee7f0 File created C:\Windows\SysWOW64\a77ee7f0 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE a77ee7f0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies a77ee7f0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 a77ee7f0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 a77ee7f0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 a77ee7f0 -
resource yara_rule behavioral2/memory/4952-0-0x0000000000140000-0x00000000001CC000-memory.dmp upx behavioral2/files/0x000e000000016cdb-2.dat upx behavioral2/memory/4804-3-0x0000000000510000-0x000000000059C000-memory.dmp upx behavioral2/memory/4952-16-0x0000000000140000-0x00000000001CC000-memory.dmp upx behavioral2/memory/4804-17-0x0000000000510000-0x000000000059C000-memory.dmp upx behavioral2/memory/4804-40-0x0000000000510000-0x000000000059C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\523f08 a77ee7f0 File opened for modification C:\Windows\54c7b0 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.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 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a77ee7f0 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing a77ee7f0 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix a77ee7f0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" a77ee7f0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" a77ee7f0 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" a77ee7f0 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" a77ee7f0 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ a77ee7f0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" a77ee7f0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" a77ee7f0 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 4804 a77ee7f0 4804 a77ee7f0 4804 a77ee7f0 4804 a77ee7f0 4804 a77ee7f0 4804 a77ee7f0 4804 a77ee7f0 4804 a77ee7f0 4952 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe 4952 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe 4952 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe 4952 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe 4952 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe 4952 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe 4952 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe 4952 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe 4952 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe 4952 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe 4952 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe 4952 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe 4952 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe 4952 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4952 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe Token: SeTcbPrivilege 4952 6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe Token: SeDebugPrivilege 4804 a77ee7f0 Token: SeTcbPrivilege 4804 a77ee7f0
Processes
-
C:\Users\Admin\AppData\Local\Temp\6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.exe"C:\Users\Admin\AppData\Local\Temp\6f1f81da319d72af051e08631cc8204de43829d6449d56b555a6d59fd14dac4b.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:4952
-
C:\Windows\Syswow64\a77ee7f0C:\Windows\Syswow64\a77ee7f01⤵
- Executes dropped EXE
- Unexpected DNS network traffic destination
- 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:4804
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\a77ee7f0
- Size 560KB
- SHA256 16c6216a81c46581b6d45e97f6370db24b7cdc703ae29436b3e5730b40672430
- MD5 51b8b438a11d0db723e021ae80c89faa
- SHA1 f7cab679d5d4b8172457e204a6acd82ef337edaa
- SHA512 e00ab2f420e9be500236351f58aec4fa515afece5f8ea0de27b791e2d2d7bd8646cdace6f1a289c2dba42aa16c32fcbeff46136db0125addb33bcf601eec1dd2
- SSDEEP 6144:ugye71cE4poJTqvpQLXNKFyLWD1nFairGcEOkCybEaQRuy8K:uI7OE4kopQzNKFyLWDHsOkxHy
- TLSH T12EC48C2AB690C076C4B7D534C5E197AAEAB17432372449CFA3D0075A1F237E2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH