Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
08/08/2026, 08:59
Behavioral task
behavioral1
Sample
b015806a9fbae95d768ea0821bef386e9cd279117b9ed5e4ea407b730f73f279.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target b015806a9fbae95d768ea0821bef386e9cd279117b9ed5e4ea407b730f73f279.exe
- Size 560KB
- Sample260808-kx51kstdmd
- SHA256 b015806a9fbae95d768ea0821bef386e9cd279117b9ed5e4ea407b730f73f279
- MD5 fe6cdae99eeb4d7040986525ccb25498
- SHA1 7ea09f47521ea8bb2ed37fc1fe8ea8d7a9d107c9
- SHA512 d67daa387738fc254465f260b04522f5dd6093e8fdbc84c44ad728b049dc2c067933341ac121beee11a7f7c82a44c5ebe210e4021e264b6f2bf61e621765be72
- SSDEEP 6144:agye71cE4poJTqvpQLXNKFyLWD1nFairGcEOkCybEaQRuy8K:aI7OE4kopQzNKFyLWDHsOkxHy
- TLSH T100C48C2AB690C076C4B7D534C5E197AAEAB17432372449CFA3D0075A1F237E2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4656 85de8dfa - 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 3 114.114.114.114 3696 b015806a9fbae95d768ea0821bef386e9cd279117b9ed5e4ea407b730f73f279.exe Destination IP 4 223.5.5.5 3696 b015806a9fbae95d768ea0821bef386e9cd279117b9ed5e4ea407b730f73f279.exe Destination IP 38 114.114.114.114 3696 b015806a9fbae95d768ea0821bef386e9cd279117b9ed5e4ea407b730f73f279.exe Destination IP 39 223.5.5.5 3696 b015806a9fbae95d768ea0821bef386e9cd279117b9ed5e4ea407b730f73f279.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 85de8dfa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 85de8dfa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 85de8dfa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 85de8dfa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 85de8dfa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 85de8dfa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 85de8dfa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 85de8dfa File created C:\Windows\SysWOW64\85de8dfa b015806a9fbae95d768ea0821bef386e9cd279117b9ed5e4ea407b730f73f279.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 85de8dfa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 85de8dfa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 85de8dfa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 85de8dfa -
resource yara_rule behavioral1/memory/3696-0-0x0000000000D40000-0x0000000000DCC000-memory.dmp upx behavioral1/files/0x000b000000024323-3.dat upx behavioral1/memory/4656-7-0x0000000000BD0000-0x0000000000C5C000-memory.dmp upx behavioral1/memory/3696-10-0x0000000000D40000-0x0000000000DCC000-memory.dmp upx behavioral1/memory/4656-11-0x0000000000BD0000-0x0000000000C5C000-memory.dmp upx behavioral1/memory/4656-28-0x0000000000BD0000-0x0000000000C5C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\3f46e0 b015806a9fbae95d768ea0821bef386e9cd279117b9ed5e4ea407b730f73f279.exe File opened for modification C:\Windows\4fb660 85de8dfa - 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 b015806a9fbae95d768ea0821bef386e9cd279117b9ed5e4ea407b730f73f279.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 85de8dfa - 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\Cookies\CachePrefix = "Cookie:" 85de8dfa Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 85de8dfa Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 85de8dfa Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 85de8dfa Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 85de8dfa Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 85de8dfa Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 85de8dfa Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 85de8dfa Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 85de8dfa - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4656 85de8dfa 4656 85de8dfa 4656 85de8dfa 4656 85de8dfa 4656 85de8dfa 4656 85de8dfa 4656 85de8dfa 4656 85de8dfa 3696 b015806a9fbae95d768ea0821bef386e9cd279117b9ed5e4ea407b730f73f279.exe 3696 b015806a9fbae95d768ea0821bef386e9cd279117b9ed5e4ea407b730f73f279.exe 3696 b015806a9fbae95d768ea0821bef386e9cd279117b9ed5e4ea407b730f73f279.exe 3696 b015806a9fbae95d768ea0821bef386e9cd279117b9ed5e4ea407b730f73f279.exe 3696 b015806a9fbae95d768ea0821bef386e9cd279117b9ed5e4ea407b730f73f279.exe 3696 b015806a9fbae95d768ea0821bef386e9cd279117b9ed5e4ea407b730f73f279.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3696 b015806a9fbae95d768ea0821bef386e9cd279117b9ed5e4ea407b730f73f279.exe Token: SeTcbPrivilege 3696 b015806a9fbae95d768ea0821bef386e9cd279117b9ed5e4ea407b730f73f279.exe Token: SeDebugPrivilege 4656 85de8dfa Token: SeTcbPrivilege 4656 85de8dfa
Processes
-
C:\Users\Admin\AppData\Local\Temp\b015806a9fbae95d768ea0821bef386e9cd279117b9ed5e4ea407b730f73f279.exe"C:\Users\Admin\AppData\Local\Temp\b015806a9fbae95d768ea0821bef386e9cd279117b9ed5e4ea407b730f73f279.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:3696
-
C:\Windows\Syswow64\85de8dfaC:\Windows\Syswow64\85de8dfa1⤵
- 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:4656
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\85de8dfa
- Size 560KB
- SHA256 c625782673665d12330a6dd352618ca94c7cace00fc40487dc1ac63ff5d72028
- MD5 19409c90f4d46e6e62cc61f8594a7244
- SHA1 3d0ac716632c8adffba8dcc0c775ae96c69c1568
- SHA512 3cef30ffa96fc36993aad95c00910d49b019c1b87007d880b8ec339227db404ddf38e5b74ad0f81c00e76b0383b36a351973df6cbba749cdfcfd603918fc0a65
- SSDEEP 6144:fgye71cE4poJTqvpQLXNKFyLWD1nFairGcEOkCybEaQRuy8K:fI7OE4kopQzNKFyLWDHsOkxHy
- TLSH T101C48C2AB690D076C4B7D534C5E197AAEAB17432372449CFA3D0075A1F237E2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH