Analysis
- max time kernel
148s - max time network
153s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
21/08/2026, 17:32
Behavioral task
behavioral1
Sample
a578562658a2fc31645ed00f35b987897fc3c2e661c4a0883b4c771327a78258.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target a578562658a2fc31645ed00f35b987897fc3c2e661c4a0883b4c771327a78258.exe
- Size 618KB
- Sample260821-v4dvsavaqc
- SHA256 a578562658a2fc31645ed00f35b987897fc3c2e661c4a0883b4c771327a78258
- MD5 6bd8a4a468cea0729bb6474923549d52
- SHA1 1a51b83da8c18cc6a32df9a25bd6620ebea7c56e
- SHA512 a30cd2a0702364234dcc41fd6bcfab19ea1830a2dbc43c2d40d714681279a514f8bc2bde11e0b739f0cab3f7a7d958cd62f5fd9167f675d7731cdeeb5ce01f7f
- SSDEEP 12288:EqXUHkUXe39sOkx2LIan5FAQjU/Lik8CQ3uEW:EjHPOSOkx2LFscUQPxW
- TLSH T198D47C31E201C03AD0A74576C6FE0BAFA5687D25431662C7A3D479362FF72D2AA3171E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 5996 41f5f746 - 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 21 223.5.5.5 5888 a578562658a2fc31645ed00f35b987897fc3c2e661c4a0883b4c771327a78258.exe Destination IP 1 114.114.114.114 5888 a578562658a2fc31645ed00f35b987897fc3c2e661c4a0883b4c771327a78258.exe Destination IP 3 223.5.5.5 5888 a578562658a2fc31645ed00f35b987897fc3c2e661c4a0883b4c771327a78258.exe Destination IP 20 114.114.114.114 5888 a578562658a2fc31645ed00f35b987897fc3c2e661c4a0883b4c771327a78258.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 41f5f746 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 41f5f746 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 41f5f746 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 41f5f746 File created C:\Windows\SysWOW64\41f5f746 a578562658a2fc31645ed00f35b987897fc3c2e661c4a0883b4c771327a78258.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 41f5f746 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 41f5f746 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 41f5f746 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 41f5f746 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 41f5f746 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 41f5f746 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 41f5f746 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 41f5f746 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 41f5f746 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 41f5f746 -
resource yara_rule behavioral2/memory/5888-0-0x0000000000160000-0x00000000001E9000-memory.dmp upx behavioral2/memory/5996-3-0x0000000000E20000-0x0000000000EA9000-memory.dmp upx behavioral2/files/0x000700000001b871-2.dat upx behavioral2/memory/5888-18-0x0000000000160000-0x00000000001E9000-memory.dmp upx behavioral2/memory/5996-20-0x0000000000E20000-0x0000000000EA9000-memory.dmp upx behavioral2/memory/5888-36-0x0000000000160000-0x00000000001E9000-memory.dmp upx behavioral2/memory/5996-37-0x0000000000E20000-0x0000000000EA9000-memory.dmp upx behavioral2/memory/5888-48-0x0000000000160000-0x00000000001E9000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\66a758 41f5f746 File opened for modification C:\Windows\64ce00 a578562658a2fc31645ed00f35b987897fc3c2e661c4a0883b4c771327a78258.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 a578562658a2fc31645ed00f35b987897fc3c2e661c4a0883b4c771327a78258.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 41f5f746 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 41f5f746 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 41f5f746 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 41f5f746 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 41f5f746 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 41f5f746 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 41f5f746 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 41f5f746 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 41f5f746 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 41f5f746 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 5996 41f5f746 5996 41f5f746 5996 41f5f746 5996 41f5f746 5996 41f5f746 5996 41f5f746 5996 41f5f746 5996 41f5f746 5888 a578562658a2fc31645ed00f35b987897fc3c2e661c4a0883b4c771327a78258.exe 5888 a578562658a2fc31645ed00f35b987897fc3c2e661c4a0883b4c771327a78258.exe 5888 a578562658a2fc31645ed00f35b987897fc3c2e661c4a0883b4c771327a78258.exe 5888 a578562658a2fc31645ed00f35b987897fc3c2e661c4a0883b4c771327a78258.exe 5888 a578562658a2fc31645ed00f35b987897fc3c2e661c4a0883b4c771327a78258.exe 5888 a578562658a2fc31645ed00f35b987897fc3c2e661c4a0883b4c771327a78258.exe 5888 a578562658a2fc31645ed00f35b987897fc3c2e661c4a0883b4c771327a78258.exe 5888 a578562658a2fc31645ed00f35b987897fc3c2e661c4a0883b4c771327a78258.exe 5888 a578562658a2fc31645ed00f35b987897fc3c2e661c4a0883b4c771327a78258.exe 5888 a578562658a2fc31645ed00f35b987897fc3c2e661c4a0883b4c771327a78258.exe 5888 a578562658a2fc31645ed00f35b987897fc3c2e661c4a0883b4c771327a78258.exe 5888 a578562658a2fc31645ed00f35b987897fc3c2e661c4a0883b4c771327a78258.exe 5888 a578562658a2fc31645ed00f35b987897fc3c2e661c4a0883b4c771327a78258.exe 5888 a578562658a2fc31645ed00f35b987897fc3c2e661c4a0883b4c771327a78258.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 5888 a578562658a2fc31645ed00f35b987897fc3c2e661c4a0883b4c771327a78258.exe Token: SeTcbPrivilege 5888 a578562658a2fc31645ed00f35b987897fc3c2e661c4a0883b4c771327a78258.exe Token: SeDebugPrivilege 5996 41f5f746 Token: SeTcbPrivilege 5996 41f5f746
Processes
-
C:\Users\Admin\AppData\Local\Temp\a578562658a2fc31645ed00f35b987897fc3c2e661c4a0883b4c771327a78258.exe"C:\Users\Admin\AppData\Local\Temp\a578562658a2fc31645ed00f35b987897fc3c2e661c4a0883b4c771327a78258.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:5888
-
C:\Windows\Syswow64\41f5f746C:\Windows\Syswow64\41f5f7461⤵
- 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:5996
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\41f5f746
- Size 618KB
- SHA256 ff134b78683b49ca6098588a6a9f2467aef6d0d9dc8ae5a92bc0b3f6b42ffe76
- MD5 a2018e609bedcf2d19b7ddc982e6ccfa
- SHA1 2be33207cb058df75bb46cee51ab2a92e506e75a
- SHA512 f19a4b1bc080b67f029a18a8d32fb34c0f6f381334858ac79daee82c929229ccb2722e9261e1a7bd6ca55c3ffa4ad283b840e6b5b3b5f698064f8bd94b2fad9d
- SSDEEP 12288:uqXUHkUXe39sOkx2LIan5FAQjU/Lik8CQ3uEW:ujHPOSOkx2LFscUQPxW
- TLSH T1B2D47C31E201C03AD0A74576C6FE0BAFA5687D25431662C7A3D479362FF72D2AA3171E
- MD5 SHA1 SHA512 SSDEEP TLSH