Analysis
- max time kernel
149s - max time network
153s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
05/05/2026, 18:18
Behavioral task
behavioral1
Sample
7b3c996960f87811dc0bd07178ed1a9c0f87bd75a9714fbd1fdac3e3f83a82bd.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 7b3c996960f87811dc0bd07178ed1a9c0f87bd75a9714fbd1fdac3e3f83a82bd.exe
- Size 271KB
- Sample260505-wxqrfagy5j
- SHA256 7b3c996960f87811dc0bd07178ed1a9c0f87bd75a9714fbd1fdac3e3f83a82bd
- MD5 043b5f5a0391d5c15ecf539f3f012ce5
- SHA1 132e720d3b400a3952c4e20ef4b7708dc9e1b065
- SHA512 adc197d10a957591332624d2c323f114fcff8c437ec2f3723ae839721a5b96dd52098ca61b0202a550f92a81244a44577ad6f62073c477f5e81ac85a372cca0a
- SSDEEP 6144:xl51orRJXlDixHkUXe35rGcEOkCybEaQRXr9HNdvOa:PqXUHkUXe39sOkx2LIa
- TLSH T1DE44CF5BF27440B6C49AD678C9935A5AFBF1B815872143CF1320C25A1F737E2AE3A325
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 5020 1f64a17a - 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 5072 7b3c996960f87811dc0bd07178ed1a9c0f87bd75a9714fbd1fdac3e3f83a82bd.exe Destination IP 2 223.5.5.5 5072 7b3c996960f87811dc0bd07178ed1a9c0f87bd75a9714fbd1fdac3e3f83a82bd.exe Destination IP 12 114.114.114.114 5072 7b3c996960f87811dc0bd07178ed1a9c0f87bd75a9714fbd1fdac3e3f83a82bd.exe Destination IP 13 223.5.5.5 5072 7b3c996960f87811dc0bd07178ed1a9c0f87bd75a9714fbd1fdac3e3f83a82bd.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 1f64a17a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 1f64a17a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 1f64a17a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 1f64a17a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 1f64a17a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 1f64a17a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 1f64a17a File created C:\Windows\SysWOW64\1f64a17a 7b3c996960f87811dc0bd07178ed1a9c0f87bd75a9714fbd1fdac3e3f83a82bd.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 1f64a17a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 1f64a17a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 1f64a17a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 1f64a17a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 1f64a17a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 1f64a17a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 1f64a17a -
resource yara_rule behavioral2/memory/5072-0-0x0000000000670000-0x00000000006F9000-memory.dmp upx behavioral2/files/0x000e000000028e1b-2.dat upx behavioral2/memory/5020-3-0x0000000000570000-0x00000000005F9000-memory.dmp upx behavioral2/memory/5072-18-0x0000000000670000-0x00000000006F9000-memory.dmp upx behavioral2/memory/5020-20-0x0000000000570000-0x00000000005F9000-memory.dmp upx behavioral2/memory/5020-24-0x0000000000570000-0x00000000005F9000-memory.dmp upx behavioral2/memory/5072-35-0x0000000000670000-0x00000000006F9000-memory.dmp upx behavioral2/memory/5020-36-0x0000000000570000-0x00000000005F9000-memory.dmp upx behavioral2/memory/5072-39-0x0000000000670000-0x00000000006F9000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\55f1b8 1f64a17a File opened for modification C:\Windows\56d5a0 7b3c996960f87811dc0bd07178ed1a9c0f87bd75a9714fbd1fdac3e3f83a82bd.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 7b3c996960f87811dc0bd07178ed1a9c0f87bd75a9714fbd1fdac3e3f83a82bd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 1f64a17a - 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" 1f64a17a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 1f64a17a Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 1f64a17a Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 1f64a17a Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 1f64a17a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 1f64a17a Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 1f64a17a Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 1f64a17a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 1f64a17a - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 5020 1f64a17a 5020 1f64a17a 5020 1f64a17a 5020 1f64a17a 5020 1f64a17a 5020 1f64a17a 5020 1f64a17a 5020 1f64a17a 5072 7b3c996960f87811dc0bd07178ed1a9c0f87bd75a9714fbd1fdac3e3f83a82bd.exe 5072 7b3c996960f87811dc0bd07178ed1a9c0f87bd75a9714fbd1fdac3e3f83a82bd.exe 5072 7b3c996960f87811dc0bd07178ed1a9c0f87bd75a9714fbd1fdac3e3f83a82bd.exe 5072 7b3c996960f87811dc0bd07178ed1a9c0f87bd75a9714fbd1fdac3e3f83a82bd.exe 5072 7b3c996960f87811dc0bd07178ed1a9c0f87bd75a9714fbd1fdac3e3f83a82bd.exe 5072 7b3c996960f87811dc0bd07178ed1a9c0f87bd75a9714fbd1fdac3e3f83a82bd.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 5072 7b3c996960f87811dc0bd07178ed1a9c0f87bd75a9714fbd1fdac3e3f83a82bd.exe Token: SeTcbPrivilege 5072 7b3c996960f87811dc0bd07178ed1a9c0f87bd75a9714fbd1fdac3e3f83a82bd.exe Token: SeDebugPrivilege 5020 1f64a17a Token: SeTcbPrivilege 5020 1f64a17a
Processes
-
C:\Users\Admin\AppData\Local\Temp\7b3c996960f87811dc0bd07178ed1a9c0f87bd75a9714fbd1fdac3e3f83a82bd.exe"C:\Users\Admin\AppData\Local\Temp\7b3c996960f87811dc0bd07178ed1a9c0f87bd75a9714fbd1fdac3e3f83a82bd.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:5072
-
C:\Windows\Syswow64\1f64a17aC:\Windows\Syswow64\1f64a17a1⤵
- 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:5020
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\1f64a17a
- Size 271KB
- SHA256 a4f6c85bde612d6fe07e0f1d5de8ac3f40a441a5411d500b85ac6b0df43b0981
- MD5 db7558213f4c7ab4185d4f15e2f89b6d
- SHA1 ce043dd3a11146ece01ed758eda23b98b9e3da1b
- SHA512 5cd213fc18368ec9fc6917f6bacad17c09690cf2aa0321cc235cc57b97c8fe5930efaee81492e70817adec3cd4b4ad220c4b6882a03fcd5c8489fac43439629f
- SSDEEP 6144:Ql51orRJXlDixHkUXe35rGcEOkCybEaQRXr9HNdvOa:kqXUHkUXe39sOkx2LIa
- TLSH T1B844CF5BF27440B6C49AD678C9935A5AFBF1B815872143CF1320C25A1F737E2AE3A325
- MD5 SHA1 SHA512 SSDEEP TLSH