Analysis
- max time kernel
149s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
02/05/2026, 09:28
Behavioral task
behavioral1
Sample
bf8963b15e8cbf1df275f03d705be0dc1bdb90b674c5957b620e0751f03a0827.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target bf8963b15e8cbf1df275f03d705be0dc1bdb90b674c5957b620e0751f03a0827.exe
- Size 832KB
- Sample260502-lfg3vsct4s
- SHA256 bf8963b15e8cbf1df275f03d705be0dc1bdb90b674c5957b620e0751f03a0827
- MD5 bb468877053de72f019c2b8a1b5ffd00
- SHA1 8331e223eaddf9c1614670d9bd3ed21792aaeb07
- SHA512 2b98b922be47de612ab4b7d002226c45c63cbab5d2c9d601dde5f8fa11e26efcfcc358bb14cb46129d31616299b5fcdd53f4f94ad2bbd36ebbfb374bdd9aabff
- SSDEEP 12288:dSvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/Likr:8vO2xJKRw2kOkx2LFRvcUv
- TLSH T152055A31E6418036D1B34576C6FA0BBFE664BD25131155CBA3C4BA262FB36D2BA3170E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 5148 16d8b3d8 - 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 4624 bf8963b15e8cbf1df275f03d705be0dc1bdb90b674c5957b620e0751f03a0827.exe Destination IP 2 223.5.5.5 4624 bf8963b15e8cbf1df275f03d705be0dc1bdb90b674c5957b620e0751f03a0827.exe Destination IP 9 114.114.114.114 4624 bf8963b15e8cbf1df275f03d705be0dc1bdb90b674c5957b620e0751f03a0827.exe Destination IP 12 223.5.5.5 4624 bf8963b15e8cbf1df275f03d705be0dc1bdb90b674c5957b620e0751f03a0827.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 16d8b3d8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 16d8b3d8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 16d8b3d8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 16d8b3d8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 16d8b3d8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 16d8b3d8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 16d8b3d8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 16d8b3d8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 16d8b3d8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 16d8b3d8 File created C:\Windows\SysWOW64\16d8b3d8 bf8963b15e8cbf1df275f03d705be0dc1bdb90b674c5957b620e0751f03a0827.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 16d8b3d8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 16d8b3d8 -
resource yara_rule behavioral2/memory/4624-0-0x0000000000700000-0x000000000078C000-memory.dmp upx behavioral2/files/0x0016000000025a2d-2.dat upx behavioral2/memory/5148-4-0x0000000000770000-0x00000000007FC000-memory.dmp upx behavioral2/memory/4624-12-0x0000000000700000-0x000000000078C000-memory.dmp upx behavioral2/memory/5148-13-0x0000000000770000-0x00000000007FC000-memory.dmp upx behavioral2/memory/5148-27-0x0000000000770000-0x00000000007FC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\5822b8 16d8b3d8 File opened for modification C:\Windows\4f2a20 bf8963b15e8cbf1df275f03d705be0dc1bdb90b674c5957b620e0751f03a0827.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 bf8963b15e8cbf1df275f03d705be0dc1bdb90b674c5957b620e0751f03a0827.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 16d8b3d8 - 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\Content\CachePrefix 16d8b3d8 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 16d8b3d8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 16d8b3d8 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 16d8b3d8 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 16d8b3d8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 16d8b3d8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 16d8b3d8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 16d8b3d8 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 16d8b3d8 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 5148 16d8b3d8 5148 16d8b3d8 5148 16d8b3d8 5148 16d8b3d8 5148 16d8b3d8 5148 16d8b3d8 5148 16d8b3d8 5148 16d8b3d8 4624 bf8963b15e8cbf1df275f03d705be0dc1bdb90b674c5957b620e0751f03a0827.exe 4624 bf8963b15e8cbf1df275f03d705be0dc1bdb90b674c5957b620e0751f03a0827.exe 4624 bf8963b15e8cbf1df275f03d705be0dc1bdb90b674c5957b620e0751f03a0827.exe 4624 bf8963b15e8cbf1df275f03d705be0dc1bdb90b674c5957b620e0751f03a0827.exe 4624 bf8963b15e8cbf1df275f03d705be0dc1bdb90b674c5957b620e0751f03a0827.exe 4624 bf8963b15e8cbf1df275f03d705be0dc1bdb90b674c5957b620e0751f03a0827.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4624 bf8963b15e8cbf1df275f03d705be0dc1bdb90b674c5957b620e0751f03a0827.exe Token: SeTcbPrivilege 4624 bf8963b15e8cbf1df275f03d705be0dc1bdb90b674c5957b620e0751f03a0827.exe Token: SeDebugPrivilege 5148 16d8b3d8 Token: SeTcbPrivilege 5148 16d8b3d8
Processes
-
C:\Users\Admin\AppData\Local\Temp\bf8963b15e8cbf1df275f03d705be0dc1bdb90b674c5957b620e0751f03a0827.exe"C:\Users\Admin\AppData\Local\Temp\bf8963b15e8cbf1df275f03d705be0dc1bdb90b674c5957b620e0751f03a0827.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:4624
-
C:\Windows\Syswow64\16d8b3d8C:\Windows\Syswow64\16d8b3d81⤵
- 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:5148
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\16d8b3d8
- Size 832KB
- SHA256 417f7004a80ed6855aace8f216f289e0a260eb1c7c9aead164179f72629ba862
- MD5 f8f2308021a0f1394810d8082b37cd08
- SHA1 fb0db67bc0aecf1ce0c0284a9e763a47b13b475d
- SHA512 bef25707693deec829f4f2a90454d0d8ccee3b3cd95877819ff06ec434231cc4b21c22580642f6e09061bb32a564626dd8214f5806e7bd2a7140dcae7bbc80f3
- SSDEEP 12288:lSvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/Likr:EvO2xJKRw2kOkx2LFRvcUv
- TLSH T1D4055A31E6418036D1B34576C6FA0BBFE664BD25131155CBA3C4BA262FB36D2BA3170E
- MD5 SHA1 SHA512 SSDEEP TLSH