Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
15/04/2026, 21:29
Behavioral task
behavioral1
Sample
455a15773ebdd6157c3919349b6cb0befebce412665c0f9f890d54d083d5b0d2.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 455a15773ebdd6157c3919349b6cb0befebce412665c0f9f890d54d083d5b0d2.exe
- Size 560KB
- Sample260415-1cd95aaw4l
- SHA256 455a15773ebdd6157c3919349b6cb0befebce412665c0f9f890d54d083d5b0d2
- MD5 2f872d50f84d3054b966888b7234dbb3
- SHA1 a331771b21c6bf7943863b30abe1d5a1e866c00d
- SHA512 c57c43f65c6930bd6d8832c6f6eae8e8d70f4504ebda770f6a4606af5da985a0dcd414eee48acbc1546e2ce745f6ef2c27de894787435e0c207c132dae515614
- SSDEEP 6144:26UE71cqQEoMr5C2iKLJChYSvL+8xPFxirGcEOkCybEaQRXr9HNdvOa+y8K:2O7OqQs42iKFChYSvL+8AsOkx2LIa+y
- TLSH T18EC46C26B6A0D076C4B79574C4A28BA6FFB1742227244BCFA39047561F637E2BE3530D
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 720 666d3154 - 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 33 223.5.5.5 4948 455a15773ebdd6157c3919349b6cb0befebce412665c0f9f890d54d083d5b0d2.exe Destination IP 3 114.114.114.114 4948 455a15773ebdd6157c3919349b6cb0befebce412665c0f9f890d54d083d5b0d2.exe Destination IP 5 223.5.5.5 4948 455a15773ebdd6157c3919349b6cb0befebce412665c0f9f890d54d083d5b0d2.exe Destination IP 32 114.114.114.114 4948 455a15773ebdd6157c3919349b6cb0befebce412665c0f9f890d54d083d5b0d2.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C 666d3154 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 666d3154 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 666d3154 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 666d3154 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 666d3154 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 666d3154 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 666d3154 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 666d3154 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 666d3154 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 666d3154 File created C:\Windows\SysWOW64\666d3154 455a15773ebdd6157c3919349b6cb0befebce412665c0f9f890d54d083d5b0d2.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 666d3154 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 666d3154 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C 666d3154 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 666d3154 -
resource yara_rule behavioral1/memory/4948-0-0x0000000000E00000-0x0000000000E8C000-memory.dmp upx behavioral1/files/0x000a000000024328-2.dat upx behavioral1/memory/720-4-0x00000000003D0000-0x000000000045C000-memory.dmp upx behavioral1/memory/4948-13-0x0000000000E00000-0x0000000000E8C000-memory.dmp upx behavioral1/memory/720-14-0x00000000003D0000-0x000000000045C000-memory.dmp upx behavioral1/memory/720-26-0x00000000003D0000-0x000000000045C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\c53a0 666d3154 File opened for modification C:\Windows\54b628 455a15773ebdd6157c3919349b6cb0befebce412665c0f9f890d54d083d5b0d2.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 455a15773ebdd6157c3919349b6cb0befebce412665c0f9f890d54d083d5b0d2.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 666d3154 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 666d3154 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 666d3154 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 666d3154 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 666d3154 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 666d3154 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 666d3154 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 666d3154 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 666d3154 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 666d3154 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 720 666d3154 720 666d3154 720 666d3154 720 666d3154 720 666d3154 720 666d3154 720 666d3154 720 666d3154 4948 455a15773ebdd6157c3919349b6cb0befebce412665c0f9f890d54d083d5b0d2.exe 4948 455a15773ebdd6157c3919349b6cb0befebce412665c0f9f890d54d083d5b0d2.exe 4948 455a15773ebdd6157c3919349b6cb0befebce412665c0f9f890d54d083d5b0d2.exe 4948 455a15773ebdd6157c3919349b6cb0befebce412665c0f9f890d54d083d5b0d2.exe 4948 455a15773ebdd6157c3919349b6cb0befebce412665c0f9f890d54d083d5b0d2.exe 4948 455a15773ebdd6157c3919349b6cb0befebce412665c0f9f890d54d083d5b0d2.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4948 455a15773ebdd6157c3919349b6cb0befebce412665c0f9f890d54d083d5b0d2.exe Token: SeTcbPrivilege 4948 455a15773ebdd6157c3919349b6cb0befebce412665c0f9f890d54d083d5b0d2.exe Token: SeDebugPrivilege 720 666d3154 Token: SeTcbPrivilege 720 666d3154
Processes
-
C:\Users\Admin\AppData\Local\Temp\455a15773ebdd6157c3919349b6cb0befebce412665c0f9f890d54d083d5b0d2.exe"C:\Users\Admin\AppData\Local\Temp\455a15773ebdd6157c3919349b6cb0befebce412665c0f9f890d54d083d5b0d2.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:4948
-
C:\Windows\Syswow64\666d3154C:\Windows\Syswow64\666d31541⤵
- 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:720
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\666d3154
- Size 560KB
- SHA256 952573c8c8fabbdcfda8a26b86dc26cad34f0208c9380cb5981037ebe1976d16
- MD5 40c53f6e78ba8ca1087efd2f20f18683
- SHA1 80c2125e4970384020136387bf646f5fb008a444
- SHA512 2c29af0a5a0f40d3bdcf40102f729af35a29288eebd5916db27e8a47a24350a40ebdb01919041e55b3549ccc2dcad4794c14504fc7b9f6dad4b9a0b123d3a2ef
- SSDEEP 6144:e6UE71cqQEoMr5C2iKLJChYSvL+8xPFxirGcEOkCybEaQRXr9HNdvOa+y8K:eO7OqQs42iKFChYSvL+8AsOkx2LIa+y
- TLSH T105C46C26B6A0D076C4B79574C4A28BA6FFB1742227244BCFA39047561F637E2BE3530D
- MD5 SHA1 SHA512 SSDEEP TLSH