Analysis
- max time kernel
149s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
26/04/2026, 23:52
Behavioral task
behavioral1
Sample
533b835a5905f25e2e3e4ce661833e2f682780213570f078b4496952f18302cc.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 533b835a5905f25e2e3e4ce661833e2f682780213570f078b4496952f18302cc.exe
- Size 560KB
- Sample260426-3wt6ssat2x
- SHA256 533b835a5905f25e2e3e4ce661833e2f682780213570f078b4496952f18302cc
- MD5 fe1a71e8fde93285def5357c3fabdf18
- SHA1 35b7afb1cbab578b143beef35c69990f5ca19be1
- SHA512 c7705f44ed58dbb2739f1c0f953330b529cd4bdfd53d147e90f0f10d48611a52544b4f641b09365fb832e986df6d2ddc7b6ea37b35bf95f4a44e57e12c1f0c43
- SSDEEP 6144:E6UE71cqQEoMr5C2iKLJChYSvL+8xPFxirGcEOkCybEaQRXr9HNdvOa+y8K:EO7OqQs42iKFChYSvL+8AsOkx2LIa+y
- TLSH T155C46C26B6A0D076C4B79574C4A28BA6FFB1742227244BCFA39047561F637E2BE3530D
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4388 1c6875f8 - Unexpected DNS network traffic destination 6 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 2 223.5.5.5 692 533b835a5905f25e2e3e4ce661833e2f682780213570f078b4496952f18302cc.exe Destination IP 23 114.114.114.114 692 533b835a5905f25e2e3e4ce661833e2f682780213570f078b4496952f18302cc.exe Destination IP 24 223.5.5.5 692 533b835a5905f25e2e3e4ce661833e2f682780213570f078b4496952f18302cc.exe Destination IP 48 114.114.114.114 4388 1c6875f8 Destination IP 50 223.5.5.5 692 533b835a5905f25e2e3e4ce661833e2f682780213570f078b4496952f18302cc.exe Destination IP 1 114.114.114.114 692 533b835a5905f25e2e3e4ce661833e2f682780213570f078b4496952f18302cc.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 1c6875f8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 1c6875f8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 1c6875f8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 1c6875f8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 1c6875f8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 1c6875f8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 1c6875f8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 1c6875f8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 1c6875f8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 1c6875f8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 1c6875f8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 1c6875f8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 1c6875f8 File created C:\Windows\SysWOW64\1c6875f8 533b835a5905f25e2e3e4ce661833e2f682780213570f078b4496952f18302cc.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 1c6875f8 -
resource yara_rule behavioral2/memory/692-0-0x00000000003C0000-0x000000000044C000-memory.dmp upx behavioral2/files/0x000700000000d3ef-2.dat upx behavioral2/memory/4388-4-0x0000000000B80000-0x0000000000C0C000-memory.dmp upx behavioral2/memory/692-18-0x00000000003C0000-0x000000000044C000-memory.dmp upx behavioral2/memory/4388-19-0x0000000000B80000-0x0000000000C0C000-memory.dmp upx behavioral2/memory/4388-32-0x0000000000B80000-0x0000000000C0C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\4b1fc8 1c6875f8 File opened for modification C:\Windows\bd8e8 533b835a5905f25e2e3e4ce661833e2f682780213570f078b4496952f18302cc.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 533b835a5905f25e2e3e4ce661833e2f682780213570f078b4496952f18302cc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 1c6875f8 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 1c6875f8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 1c6875f8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 1c6875f8 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 1c6875f8 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 1c6875f8 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 1c6875f8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 1c6875f8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 1c6875f8 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 1c6875f8 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4388 1c6875f8 4388 1c6875f8 4388 1c6875f8 4388 1c6875f8 4388 1c6875f8 4388 1c6875f8 4388 1c6875f8 4388 1c6875f8 692 533b835a5905f25e2e3e4ce661833e2f682780213570f078b4496952f18302cc.exe 692 533b835a5905f25e2e3e4ce661833e2f682780213570f078b4496952f18302cc.exe 692 533b835a5905f25e2e3e4ce661833e2f682780213570f078b4496952f18302cc.exe 692 533b835a5905f25e2e3e4ce661833e2f682780213570f078b4496952f18302cc.exe 692 533b835a5905f25e2e3e4ce661833e2f682780213570f078b4496952f18302cc.exe 692 533b835a5905f25e2e3e4ce661833e2f682780213570f078b4496952f18302cc.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 692 533b835a5905f25e2e3e4ce661833e2f682780213570f078b4496952f18302cc.exe Token: SeTcbPrivilege 692 533b835a5905f25e2e3e4ce661833e2f682780213570f078b4496952f18302cc.exe Token: SeDebugPrivilege 4388 1c6875f8 Token: SeTcbPrivilege 4388 1c6875f8
Processes
-
C:\Users\Admin\AppData\Local\Temp\533b835a5905f25e2e3e4ce661833e2f682780213570f078b4496952f18302cc.exe"C:\Users\Admin\AppData\Local\Temp\533b835a5905f25e2e3e4ce661833e2f682780213570f078b4496952f18302cc.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:692
-
C:\Windows\Syswow64\1c6875f8C:\Windows\Syswow64\1c6875f81⤵
- Executes dropped EXE
- Unexpected DNS network traffic destination
- 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:4388
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\1c6875f8
- Size 560KB
- SHA256 e22360b5b5617eb42000b9142d6b1406498facdbf51cc3d2e30b3d41586285ca
- MD5 a236a5cc5a17df656a9f10a91bca7b91
- SHA1 c101babcb9aa13ee009ef6e6492d314b7a0465ed
- SHA512 41587196968fba9077f52cfaa7c200294ef301b25e8c0ffde2586c0a7bb9424a0b4040aea4fe7326cd67947ef9752d74224c8ae69e8c3301f5c34ca1373cf95a
- SSDEEP 6144:J6UE71cqQEoMr5C2iKLJChYSvL+8xPFxirGcEOkCybEaQRXr9HNdvOa+y8K:JO7OqQs42iKFChYSvL+8AsOkx2LIa+y
- TLSH T190C46C26B6A0D076C4B79574C4A28BA6FFB1742227244BCFA39047561F637E2BE3530D
- MD5 SHA1 SHA512 SSDEEP TLSH