Analysis
- max time kernel
149s - max time network
148s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
23/04/2026, 11:14
Behavioral task
behavioral1
Sample
7a7bcedc1abb48d673b46b613266316ed3020f74ee93c8b6a1956a2807f7017c.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 7a7bcedc1abb48d673b46b613266316ed3020f74ee93c8b6a1956a2807f7017c.exe
- Size 576KB
- Sample260423-nb9nesa13s
- SHA256 7a7bcedc1abb48d673b46b613266316ed3020f74ee93c8b6a1956a2807f7017c
- MD5 ecd1014722a091b8e5fec89a1fdfbfee
- SHA1 0a2bc0eeb55053542fedd45c8a609ee9192c0766
- SHA512 37324a4be389097acb87559d0ccac55dfba7121ef5f35161891dc06074279c1850ef767b3e5921eb7ce6f0d0306dc7d26c1cfe4e609037d7307ffa3a6d469e2e
- SSDEEP 12288:GqXUHkUXe39sOkx2LIan5FAQjU/Lik8CQ3K:GjHPOSOkx2LFscUQPK
- TLSH T13CC47C31E201C03AD1A74572C6FE0BAFA568BD24431562C7A3D479762FF72D2AA3171E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 688 91b186ff - 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 1728 7a7bcedc1abb48d673b46b613266316ed3020f74ee93c8b6a1956a2807f7017c.exe Destination IP 2 223.5.5.5 1728 7a7bcedc1abb48d673b46b613266316ed3020f74ee93c8b6a1956a2807f7017c.exe Destination IP 20 114.114.114.114 1728 7a7bcedc1abb48d673b46b613266316ed3020f74ee93c8b6a1956a2807f7017c.exe Destination IP 21 223.5.5.5 1728 7a7bcedc1abb48d673b46b613266316ed3020f74ee93c8b6a1956a2807f7017c.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 91b186ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 91b186ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 91b186ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 91b186ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 91b186ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 91b186ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 91b186ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 91b186ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 91b186ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 91b186ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 91b186ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 91b186ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 91b186ff File created C:\Windows\SysWOW64\91b186ff 7a7bcedc1abb48d673b46b613266316ed3020f74ee93c8b6a1956a2807f7017c.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 91b186ff -
resource yara_rule behavioral2/memory/1728-0-0x0000000000290000-0x0000000000319000-memory.dmp upx behavioral2/files/0x002700000002b11c-2.dat upx behavioral2/memory/688-4-0x0000000000020000-0x00000000000A9000-memory.dmp upx behavioral2/memory/1728-18-0x0000000000290000-0x0000000000319000-memory.dmp upx behavioral2/memory/688-20-0x0000000000020000-0x00000000000A9000-memory.dmp upx behavioral2/memory/688-21-0x0000000000020000-0x00000000000A9000-memory.dmp upx behavioral2/memory/1728-33-0x0000000000290000-0x0000000000319000-memory.dmp upx behavioral2/memory/688-34-0x0000000000020000-0x00000000000A9000-memory.dmp upx behavioral2/memory/688-39-0x0000000000020000-0x00000000000A9000-memory.dmp upx behavioral2/memory/1728-47-0x0000000000290000-0x0000000000319000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\1d9580 7a7bcedc1abb48d673b46b613266316ed3020f74ee93c8b6a1956a2807f7017c.exe File opened for modification C:\Windows\bc760 91b186ff - 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 7a7bcedc1abb48d673b46b613266316ed3020f74ee93c8b6a1956a2807f7017c.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 91b186ff - 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" 91b186ff Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 91b186ff Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 91b186ff Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 91b186ff Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 91b186ff Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 91b186ff Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 91b186ff Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 91b186ff Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 91b186ff - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 688 91b186ff 688 91b186ff 688 91b186ff 688 91b186ff 688 91b186ff 688 91b186ff 688 91b186ff 688 91b186ff 1728 7a7bcedc1abb48d673b46b613266316ed3020f74ee93c8b6a1956a2807f7017c.exe 1728 7a7bcedc1abb48d673b46b613266316ed3020f74ee93c8b6a1956a2807f7017c.exe 1728 7a7bcedc1abb48d673b46b613266316ed3020f74ee93c8b6a1956a2807f7017c.exe 1728 7a7bcedc1abb48d673b46b613266316ed3020f74ee93c8b6a1956a2807f7017c.exe 1728 7a7bcedc1abb48d673b46b613266316ed3020f74ee93c8b6a1956a2807f7017c.exe 1728 7a7bcedc1abb48d673b46b613266316ed3020f74ee93c8b6a1956a2807f7017c.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1728 7a7bcedc1abb48d673b46b613266316ed3020f74ee93c8b6a1956a2807f7017c.exe Token: SeTcbPrivilege 1728 7a7bcedc1abb48d673b46b613266316ed3020f74ee93c8b6a1956a2807f7017c.exe Token: SeDebugPrivilege 688 91b186ff Token: SeTcbPrivilege 688 91b186ff
Processes
-
C:\Users\Admin\AppData\Local\Temp\7a7bcedc1abb48d673b46b613266316ed3020f74ee93c8b6a1956a2807f7017c.exe"C:\Users\Admin\AppData\Local\Temp\7a7bcedc1abb48d673b46b613266316ed3020f74ee93c8b6a1956a2807f7017c.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:1728
-
C:\Windows\Syswow64\91b186ffC:\Windows\Syswow64\91b186ff1⤵
- 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:688
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\91b186ff
- Size 576KB
- SHA256 ce2f730cc5013dbcb1b645c5134522849ac557cb6079e6b06acf8bae2d6c0937
- MD5 5089b1d84063ce195adc8fc0509cd368
- SHA1 64fcab809c7ea9b53d4cb5598d95f7f06d0905f4
- SHA512 c1d505de0749423a72230350bfc88754e636f586029997ddddaa9307fa5ebb2a64e8ae85f2e1c1b9942b327d14d1de2922f0854f0e8373e1c309eb594866c74b
- SSDEEP 12288:lqXUHkUXe39sOkx2LIan5FAQjU/Lik8CQ3K:ljHPOSOkx2LFscUQPK
- TLSH T156C47C31E201C03AD1A74572C6FE0BAFA568BD24431562C7A3D479762FF72D2AA3171E
- MD5 SHA1 SHA512 SSDEEP TLSH