Analysis
- max time kernel
149s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
26/04/2026, 22:52
Behavioral task
behavioral1
Sample
f171ef903426cf11464677cab7789bf2b1266dcb193fbc5fb2973a7818d573f5.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target f171ef903426cf11464677cab7789bf2b1266dcb193fbc5fb2973a7818d573f5.exe
- Size 560KB
- Sample260426-2te4eshy2s
- SHA256 f171ef903426cf11464677cab7789bf2b1266dcb193fbc5fb2973a7818d573f5
- MD5 1fcd8a2c77f986e217c9a7b9e33f805c
- SHA1 eb98ef475b3a0355331f1e4475a10dc04369e608
- SHA512 988dc77e7b0ec2d9bf03650df93287d79fb06e6946c871a60e31fe40a1128212187124dcab52dd3c90e8dfac74d8bb2e33f371569bc7f8e3f7fd553d6b707a89
- SSDEEP 6144:gLgye71cE4poJTqvpQLXNKFyLWD1nFairGcEOkCybEaQRuy8K:aI7OE4kopQzNKFyLWDHsOkxHy
- TLSH T1C8C48C2AB690C076C4B7D534C5E197AAEAB17432372449CFA3D0075A1F237E2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4528 240cddfd - Unexpected DNS network traffic destination 6 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 3044 f171ef903426cf11464677cab7789bf2b1266dcb193fbc5fb2973a7818d573f5.exe Destination IP 2 223.5.5.5 3044 f171ef903426cf11464677cab7789bf2b1266dcb193fbc5fb2973a7818d573f5.exe Destination IP 10 114.114.114.114 3044 f171ef903426cf11464677cab7789bf2b1266dcb193fbc5fb2973a7818d573f5.exe Destination IP 11 223.5.5.5 3044 f171ef903426cf11464677cab7789bf2b1266dcb193fbc5fb2973a7818d573f5.exe Destination IP 53 114.114.114.114 3044 f171ef903426cf11464677cab7789bf2b1266dcb193fbc5fb2973a7818d573f5.exe Destination IP 54 223.5.5.5 3044 f171ef903426cf11464677cab7789bf2b1266dcb193fbc5fb2973a7818d573f5.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 240cddfd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 240cddfd File created C:\Windows\SysWOW64\240cddfd f171ef903426cf11464677cab7789bf2b1266dcb193fbc5fb2973a7818d573f5.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 240cddfd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 240cddfd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 240cddfd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 240cddfd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 240cddfd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 240cddfd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 240cddfd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 240cddfd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 240cddfd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 240cddfd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 240cddfd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 240cddfd -
resource yara_rule behavioral2/memory/3044-0-0x0000000000C30000-0x0000000000CBC000-memory.dmp upx behavioral2/memory/4528-3-0x0000000000130000-0x00000000001BC000-memory.dmp upx behavioral2/files/0x001d00000002b1ed-2.dat upx behavioral2/memory/3044-18-0x0000000000C30000-0x0000000000CBC000-memory.dmp upx behavioral2/memory/4528-20-0x0000000000130000-0x00000000001BC000-memory.dmp upx behavioral2/memory/4528-40-0x0000000000130000-0x00000000001BC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\4d8560 240cddfd File opened for modification C:\Windows\341d48 f171ef903426cf11464677cab7789bf2b1266dcb193fbc5fb2973a7818d573f5.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 f171ef903426cf11464677cab7789bf2b1266dcb193fbc5fb2973a7818d573f5.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 240cddfd - 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\History\CachePrefix = "Visited:" 240cddfd Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 240cddfd Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 240cddfd Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 240cddfd Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 240cddfd Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 240cddfd Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 240cddfd Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 240cddfd Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 240cddfd - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4528 240cddfd 4528 240cddfd 4528 240cddfd 4528 240cddfd 4528 240cddfd 4528 240cddfd 4528 240cddfd 4528 240cddfd 3044 f171ef903426cf11464677cab7789bf2b1266dcb193fbc5fb2973a7818d573f5.exe 3044 f171ef903426cf11464677cab7789bf2b1266dcb193fbc5fb2973a7818d573f5.exe 3044 f171ef903426cf11464677cab7789bf2b1266dcb193fbc5fb2973a7818d573f5.exe 3044 f171ef903426cf11464677cab7789bf2b1266dcb193fbc5fb2973a7818d573f5.exe 3044 f171ef903426cf11464677cab7789bf2b1266dcb193fbc5fb2973a7818d573f5.exe 3044 f171ef903426cf11464677cab7789bf2b1266dcb193fbc5fb2973a7818d573f5.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3044 f171ef903426cf11464677cab7789bf2b1266dcb193fbc5fb2973a7818d573f5.exe Token: SeTcbPrivilege 3044 f171ef903426cf11464677cab7789bf2b1266dcb193fbc5fb2973a7818d573f5.exe Token: SeDebugPrivilege 4528 240cddfd Token: SeTcbPrivilege 4528 240cddfd
Processes
-
C:\Users\Admin\AppData\Local\Temp\f171ef903426cf11464677cab7789bf2b1266dcb193fbc5fb2973a7818d573f5.exe"C:\Users\Admin\AppData\Local\Temp\f171ef903426cf11464677cab7789bf2b1266dcb193fbc5fb2973a7818d573f5.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:3044
-
C:\Windows\Syswow64\240cddfdC:\Windows\Syswow64\240cddfd1⤵
- 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:4528
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\240cddfd
- Size 560KB
- SHA256 8d8b4be77545c649788d36086080381009757b021cb0aed151b4a851e468f604
- MD5 136bb65a8fb7c5f1beb0cd67692fa0ea
- SHA1 1b7bb2780fe491c2b561d1e75419117509f07e1e
- SHA512 f19fe94db845965a91dff129fdbc3f23f842b5890ae5eda0d8d859d32dbb8622a1500fa2b6e829719b9e959698ac18e85cf2220012dfc176b635260ea697c60d
- SSDEEP 6144:Vgye71cE4poJTqvpQLXNKFyLWD1nFairGcEOkCybEaQRuy8K:VI7OE4kopQzNKFyLWDHsOkxHy
- TLSH T187C48C2AB690C076C4B7D534C5E197AAEAB17432372449CFA3D0075A1F237E2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH