Analysis
- max time kernel
148s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
31/07/2026, 04:46
Behavioral task
behavioral1
Sample
b25546fbc7973f5dbccc4aefcc509ecd8417520c5b1490a17fb4b2428597521e.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target b25546fbc7973f5dbccc4aefcc509ecd8417520c5b1490a17fb4b2428597521e.exe
- Size 525KB
- Sample260731-fdyd6scg96
- SHA256 b25546fbc7973f5dbccc4aefcc509ecd8417520c5b1490a17fb4b2428597521e
- MD5 23fad4957f5fa239f367a577cc951dbb
- SHA1 9f90db23dc5f3644e6ffa532797841997536e820
- SHA512 8d8f9643cd9fbdf536b49d133e7c996d9f81e979ed942e70dbfd7c7b450c5f636fa942286bf1292b8172362c4dc1af58a66407d9d1c2726cb90f3fd0cf8a31bf
- SSDEEP 6144:+cTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8K:+SvO2x9mONvKRwLSFtsOkx2LIa+y
- TLSH T19DB47D2AB6A0D076C4779579C4A257BAFBB1742137204ACFA390475A1F237E2BE3530D
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4244 f3d06740 - 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 1968 b25546fbc7973f5dbccc4aefcc509ecd8417520c5b1490a17fb4b2428597521e.exe Destination IP 5 223.5.5.5 1968 b25546fbc7973f5dbccc4aefcc509ecd8417520c5b1490a17fb4b2428597521e.exe Destination IP 18 114.114.114.114 1968 b25546fbc7973f5dbccc4aefcc509ecd8417520c5b1490a17fb4b2428597521e.exe Destination IP 19 223.5.5.5 1968 b25546fbc7973f5dbccc4aefcc509ecd8417520c5b1490a17fb4b2428597521e.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 f3d06740 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE f3d06740 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 f3d06740 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache f3d06740 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content f3d06740 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 f3d06740 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C f3d06740 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies f3d06740 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft f3d06740 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData f3d06740 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 f3d06740 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C f3d06740 File created C:\Windows\SysWOW64\f3d06740 b25546fbc7973f5dbccc4aefcc509ecd8417520c5b1490a17fb4b2428597521e.exe -
resource yara_rule behavioral2/memory/1968-0-0x0000000000340000-0x00000000003CC000-memory.dmp upx behavioral2/files/0x000500000000053e-2.dat upx behavioral2/memory/4244-3-0x00000000009F0000-0x0000000000A7C000-memory.dmp upx behavioral2/memory/1968-13-0x0000000000340000-0x00000000003CC000-memory.dmp upx behavioral2/memory/4244-14-0x00000000009F0000-0x0000000000A7C000-memory.dmp upx behavioral2/memory/4244-31-0x00000000009F0000-0x0000000000A7C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\48a8a8 f3d06740 File opened for modification C:\Windows\21b160 b25546fbc7973f5dbccc4aefcc509ecd8417520c5b1490a17fb4b2428597521e.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 b25546fbc7973f5dbccc4aefcc509ecd8417520c5b1490a17fb4b2428597521e.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language f3d06740 - 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 f3d06740 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" f3d06740 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" f3d06740 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" f3d06740 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" f3d06740 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing f3d06740 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" f3d06740 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ f3d06740 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" f3d06740 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 4244 f3d06740 4244 f3d06740 4244 f3d06740 4244 f3d06740 4244 f3d06740 4244 f3d06740 4244 f3d06740 4244 f3d06740 1968 b25546fbc7973f5dbccc4aefcc509ecd8417520c5b1490a17fb4b2428597521e.exe 1968 b25546fbc7973f5dbccc4aefcc509ecd8417520c5b1490a17fb4b2428597521e.exe 1968 b25546fbc7973f5dbccc4aefcc509ecd8417520c5b1490a17fb4b2428597521e.exe 1968 b25546fbc7973f5dbccc4aefcc509ecd8417520c5b1490a17fb4b2428597521e.exe 1968 b25546fbc7973f5dbccc4aefcc509ecd8417520c5b1490a17fb4b2428597521e.exe 1968 b25546fbc7973f5dbccc4aefcc509ecd8417520c5b1490a17fb4b2428597521e.exe 1968 b25546fbc7973f5dbccc4aefcc509ecd8417520c5b1490a17fb4b2428597521e.exe 1968 b25546fbc7973f5dbccc4aefcc509ecd8417520c5b1490a17fb4b2428597521e.exe 1968 b25546fbc7973f5dbccc4aefcc509ecd8417520c5b1490a17fb4b2428597521e.exe 1968 b25546fbc7973f5dbccc4aefcc509ecd8417520c5b1490a17fb4b2428597521e.exe 1968 b25546fbc7973f5dbccc4aefcc509ecd8417520c5b1490a17fb4b2428597521e.exe 1968 b25546fbc7973f5dbccc4aefcc509ecd8417520c5b1490a17fb4b2428597521e.exe 1968 b25546fbc7973f5dbccc4aefcc509ecd8417520c5b1490a17fb4b2428597521e.exe 1968 b25546fbc7973f5dbccc4aefcc509ecd8417520c5b1490a17fb4b2428597521e.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1968 b25546fbc7973f5dbccc4aefcc509ecd8417520c5b1490a17fb4b2428597521e.exe Token: SeTcbPrivilege 1968 b25546fbc7973f5dbccc4aefcc509ecd8417520c5b1490a17fb4b2428597521e.exe Token: SeDebugPrivilege 4244 f3d06740 Token: SeTcbPrivilege 4244 f3d06740
Processes
-
C:\Users\Admin\AppData\Local\Temp\b25546fbc7973f5dbccc4aefcc509ecd8417520c5b1490a17fb4b2428597521e.exe"C:\Users\Admin\AppData\Local\Temp\b25546fbc7973f5dbccc4aefcc509ecd8417520c5b1490a17fb4b2428597521e.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:1968
-
C:\Windows\Syswow64\f3d06740C:\Windows\Syswow64\f3d067401⤵
- 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:4244
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\f3d06740
- Size 525KB
- SHA256 86d7f2edfbecd5ac0d647320cfaca0b358149b84d06543e52089be582cf1a958
- MD5 7f853a6f7f9fada5804cdca414e10159
- SHA1 cd54cd0324f17af720f6e658f294e34d9e9bfbe5
- SHA512 093e9dca018e108adf37cc3d210ce58ffab924748011eca3b3fbb71941114c64e6d4454079c1e138bc696d92c2cbb1925ec0be9f19906bd555cfcb4fbe3e087f
- SSDEEP 6144:qcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8K:qSvO2x9mONvKRwLSFtsOkx2LIa+y
- TLSH T159B47D2AB6A0D076C4779579C4A257BAFBB1742137204ACFA390475A1F237E2BE3530D
- MD5 SHA1 SHA512 SSDEEP TLSH