Analysis
- max time kernel
149s - max time network
148s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
15/04/2026, 08:04
Behavioral task
behavioral1
Sample
cf813d7ff11117e4902f056f7dec69f08f9db55b4f230a37ff0762d5e6de4e7c.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target cf813d7ff11117e4902f056f7dec69f08f9db55b4f230a37ff0762d5e6de4e7c.exe
- Size 271KB
- Sample260415-jybmpact4y
- SHA256 cf813d7ff11117e4902f056f7dec69f08f9db55b4f230a37ff0762d5e6de4e7c
- MD5 3855b3c47f6a434eeccae94c284d4592
- SHA1 a4e643034813581f4b70e4e14c6d33a3df744418
- SHA512 874422dc71708adb9c5c30f454ffc1ea3c8aa6b0d14026760670a365e280abafa882378acd58ca36c07972e2fd50e02a15439fa4568e40ac1e8b6200ec658680
- SSDEEP 6144:/l51orRJXlDixHkUXe35rGcEOkCybEaQRXr9HNdvOa:xqXUHkUXe39sOkx2LIa
- TLSH T15B44CF5BF27440B6C49AD678C9935A5AFBF1B815872143CF1320C25A1F737E2AE3A325
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4992 78403243 - 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 4176 cf813d7ff11117e4902f056f7dec69f08f9db55b4f230a37ff0762d5e6de4e7c.exe Destination IP 2 223.5.5.5 4176 cf813d7ff11117e4902f056f7dec69f08f9db55b4f230a37ff0762d5e6de4e7c.exe Destination IP 19 114.114.114.114 4176 cf813d7ff11117e4902f056f7dec69f08f9db55b4f230a37ff0762d5e6de4e7c.exe Destination IP 20 223.5.5.5 4176 cf813d7ff11117e4902f056f7dec69f08f9db55b4f230a37ff0762d5e6de4e7c.exe - Drops file in System32 directory 15 IoCs
description ioc Process File created C:\Windows\SysWOW64\78403243 cf813d7ff11117e4902f056f7dec69f08f9db55b4f230a37ff0762d5e6de4e7c.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 78403243 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 78403243 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 78403243 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 78403243 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 78403243 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 78403243 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 78403243 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 78403243 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 78403243 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 78403243 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 78403243 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 78403243 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 78403243 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 78403243 -
resource yara_rule behavioral2/memory/4176-0-0x0000000000570000-0x00000000005F9000-memory.dmp upx behavioral2/files/0x000d000000027002-2.dat upx behavioral2/memory/4992-3-0x0000000000D20000-0x0000000000DA9000-memory.dmp upx behavioral2/memory/4176-18-0x0000000000570000-0x00000000005F9000-memory.dmp upx behavioral2/memory/4992-20-0x0000000000D20000-0x0000000000DA9000-memory.dmp upx behavioral2/memory/4992-21-0x0000000000D20000-0x0000000000DA9000-memory.dmp upx behavioral2/memory/4176-36-0x0000000000570000-0x00000000005F9000-memory.dmp upx behavioral2/memory/4992-37-0x0000000000D20000-0x0000000000DA9000-memory.dmp upx behavioral2/memory/4176-45-0x0000000000570000-0x00000000005F9000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\557700 78403243 File opened for modification C:\Windows\477ea0 cf813d7ff11117e4902f056f7dec69f08f9db55b4f230a37ff0762d5e6de4e7c.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 cf813d7ff11117e4902f056f7dec69f08f9db55b4f230a37ff0762d5e6de4e7c.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 78403243 - 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 78403243 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 78403243 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 78403243 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 78403243 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 78403243 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 78403243 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 78403243 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 78403243 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 78403243 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4992 78403243 4992 78403243 4992 78403243 4992 78403243 4992 78403243 4992 78403243 4992 78403243 4992 78403243 4176 cf813d7ff11117e4902f056f7dec69f08f9db55b4f230a37ff0762d5e6de4e7c.exe 4176 cf813d7ff11117e4902f056f7dec69f08f9db55b4f230a37ff0762d5e6de4e7c.exe 4176 cf813d7ff11117e4902f056f7dec69f08f9db55b4f230a37ff0762d5e6de4e7c.exe 4176 cf813d7ff11117e4902f056f7dec69f08f9db55b4f230a37ff0762d5e6de4e7c.exe 4176 cf813d7ff11117e4902f056f7dec69f08f9db55b4f230a37ff0762d5e6de4e7c.exe 4176 cf813d7ff11117e4902f056f7dec69f08f9db55b4f230a37ff0762d5e6de4e7c.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4176 cf813d7ff11117e4902f056f7dec69f08f9db55b4f230a37ff0762d5e6de4e7c.exe Token: SeTcbPrivilege 4176 cf813d7ff11117e4902f056f7dec69f08f9db55b4f230a37ff0762d5e6de4e7c.exe Token: SeDebugPrivilege 4992 78403243 Token: SeTcbPrivilege 4992 78403243
Processes
-
C:\Users\Admin\AppData\Local\Temp\cf813d7ff11117e4902f056f7dec69f08f9db55b4f230a37ff0762d5e6de4e7c.exe"C:\Users\Admin\AppData\Local\Temp\cf813d7ff11117e4902f056f7dec69f08f9db55b4f230a37ff0762d5e6de4e7c.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:4176
-
C:\Windows\Syswow64\78403243C:\Windows\Syswow64\784032431⤵
- 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:4992
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\78403243
- Size 271KB
- SHA256 ffab734168cddcbcd1af79e510a0ea3d1993ab5e4af24109db0594924f6303b8
- MD5 4f004e58863ed22a54e4f939f9bd037e
- SHA1 ac145fb5b5ccdf71ff93dc76b7edd3e97c54befe
- SHA512 febb77243b46964e28f7fd0b2801bd03edc31adc6eff11800ff5bf9d731ec504f81ad3d04c2bcac336f78f376fe265a9a62e422dffc5684b8661d96a1e00ab2a
- SSDEEP 6144:vl51orRJXlDixHkUXe35rGcEOkCybEaQRXr9HNdvOa:hqXUHkUXe39sOkx2LIa
- TLSH T18744CF5BF27440B6C49AD678C9935A5AFBF1B815872143CF1320C25A1F737E2AE3A325
- MD5 SHA1 SHA512 SSDEEP TLSH