Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
29/07/2026, 10:21
Behavioral task
behavioral1
Sample
839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe
- Size 873KB
- Sample260729-mds8sa1fnd
- SHA256 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5
- MD5 133155e3ac4abb956fc88e24ad395077
- SHA1 240d7fc958b43bff4804f8fb68c88b1b60576813
- SHA512 4d437d63353d847f424731d973515dea57385e79620dea4ba64d0dc136f392e040056ef3bb17aea23556c32d61d4b70386957c53d5ed64183a4e8fd9ff5ddf2d
- SSDEEP 12288:ySvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/Lik8CQ3uEW:ZvO2xJKRw2kOkx2LFRvcUQPxW
- TLSH T18F156B31E641C036D0A34576C6FA4BBFE964BD25531165CBA3D43A262FB32D2BA3170E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4420 3466f92b - 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 1100 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe Destination IP 4 223.5.5.5 1100 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe Destination IP 41 114.114.114.114 1100 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe Destination IP 42 223.5.5.5 1100 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe - Drops file in System32 directory 17 IoCs
description ioc Process File created C:\Windows\SysWOW64\3466f92b 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 3466f92b File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C 3466f92b File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 3466f92b File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 3466f92b File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 3466f92b File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 3466f92b File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C 3466f92b File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 3466f92b File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 3466f92b File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 3466f92b File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 3466f92b File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 3466f92b File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 3466f92b File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 3466f92b File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 3466f92b File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 3466f92b -
resource yara_rule behavioral1/memory/1100-0-0x0000000000150000-0x00000000001DC000-memory.dmp upx behavioral1/files/0x00060000000231d3-3.dat upx behavioral1/memory/4420-4-0x0000000000550000-0x00000000005DC000-memory.dmp upx behavioral1/memory/1100-10-0x0000000000150000-0x00000000001DC000-memory.dmp upx behavioral1/memory/4420-11-0x0000000000550000-0x00000000005DC000-memory.dmp upx behavioral1/memory/4420-32-0x0000000000550000-0x00000000005DC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\4bac08 3466f92b File opened for modification C:\Windows\12d518 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.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 3466f92b Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 3466f92b Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 3466f92b Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 3466f92b Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 3466f92b Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 3466f92b Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 3466f92b Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 3466f92b Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 3466f92b Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 3466f92b - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4420 3466f92b 4420 3466f92b 4420 3466f92b 4420 3466f92b 4420 3466f92b 4420 3466f92b 4420 3466f92b 4420 3466f92b 1100 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe 1100 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe 1100 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe 1100 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe 1100 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe 1100 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1100 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe Token: SeTcbPrivilege 1100 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe Token: SeDebugPrivilege 4420 3466f92b Token: SeTcbPrivilege 4420 3466f92b
Processes
-
C:\Users\Admin\AppData\Local\Temp\839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe"C:\Users\Admin\AppData\Local\Temp\839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.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:1100
-
C:\Windows\Syswow64\3466f92bC:\Windows\Syswow64\3466f92b1⤵
- 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:4420
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\3466f92b
- Size 873KB
- SHA256 a7de36fcbe46a88bd5444fdf371565fe3beb11e216c52f20b623d3af7a6d1983
- MD5 f11a36ae8ca756d7773f645be06b3411
- SHA1 9aad3f280184e6256b84ad30717d94aa5f583c35
- SHA512 227e88be9fce15bca9cf34ccda62363a7df5e930862aebd9233dfe7a3b7db0d79243427e52f214f23737bc943cc9e6b3ed52d90c6393e2c2c75c9494a0cec407
- SSDEEP 12288:5SvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/Lik8CQ3uEW:AvO2xJKRw2kOkx2LFRvcUQPxW
- TLSH T155156B31E641C036D0A34576C6FA4BBFE964BD25531165CBA3D43A262FB32D2BA3170E
- MD5 SHA1 SHA512 SSDEEP TLSH