Analysis
- max time kernel
149s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
27/05/2026, 14:05
Behavioral task
behavioral1
Sample
a92d420ec832a5ccd05d90f3d665427baba94c64333a02369096f658cffe407b.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target a92d420ec832a5ccd05d90f3d665427baba94c64333a02369096f658cffe407b.exe
- Size 761KB
- Sample260527-rd2mdafv6j
- SHA256 a92d420ec832a5ccd05d90f3d665427baba94c64333a02369096f658cffe407b
- MD5 eb26687c3719331532236bd181f72603
- SHA1 a8e6292a063a09382ef7b4cdf878471b7e2b2b33
- SHA512 dd39ea9cdbc9fa5545d4e33f064d3d55d81a9cc3b7d33e18c3611c165df2decb345a2caabab36c4613f1cb37e19e3d0b0da81ad06ef9e00d14deb12077d4aafd
- SSDEEP 12288:DSvO2x9mONvKRwLSFtsOkxHya5hYIW0p98B:2vO2xJKRw2kOkxSkW298B
- TLSH T197F49E35A2808036C0B34532C6F94AABF9797D35631565CBA3843B662F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 3308 1bcc537c - 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 2480 a92d420ec832a5ccd05d90f3d665427baba94c64333a02369096f658cffe407b.exe Destination IP 2 223.5.5.5 2480 a92d420ec832a5ccd05d90f3d665427baba94c64333a02369096f658cffe407b.exe Destination IP 8 114.114.114.114 2480 a92d420ec832a5ccd05d90f3d665427baba94c64333a02369096f658cffe407b.exe Destination IP 9 223.5.5.5 2480 a92d420ec832a5ccd05d90f3d665427baba94c64333a02369096f658cffe407b.exe - Drops file in System32 directory 15 IoCs
description ioc Process File created C:\Windows\SysWOW64\1bcc537c a92d420ec832a5ccd05d90f3d665427baba94c64333a02369096f658cffe407b.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 1bcc537c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 1bcc537c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 1bcc537c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 1bcc537c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 1bcc537c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 1bcc537c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 1bcc537c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\AAD646CB44373074ADE741C38400E7E1 1bcc537c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 1bcc537c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 1bcc537c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 1bcc537c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 1bcc537c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\AAD646CB44373074ADE741C38400E7E1 1bcc537c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 1bcc537c -
resource yara_rule behavioral2/memory/2480-0-0x0000000000340000-0x00000000003CC000-memory.dmp upx behavioral2/files/0x000700000002a95a-2.dat upx behavioral2/memory/3308-4-0x00000000003A0000-0x000000000042C000-memory.dmp upx behavioral2/memory/2480-10-0x0000000000340000-0x00000000003CC000-memory.dmp upx behavioral2/memory/3308-11-0x00000000003A0000-0x000000000042C000-memory.dmp upx behavioral2/memory/3308-27-0x00000000003A0000-0x000000000042C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\2a7560 a92d420ec832a5ccd05d90f3d665427baba94c64333a02369096f658cffe407b.exe File opened for modification C:\Windows\38a258 1bcc537c - 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 a92d420ec832a5ccd05d90f3d665427baba94c64333a02369096f658cffe407b.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 1bcc537c - 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" 1bcc537c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 1bcc537c Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 1bcc537c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 1bcc537c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 1bcc537c Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 1bcc537c Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 1bcc537c Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 1bcc537c Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 1bcc537c - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 3308 1bcc537c 3308 1bcc537c 3308 1bcc537c 3308 1bcc537c 3308 1bcc537c 3308 1bcc537c 3308 1bcc537c 3308 1bcc537c 2480 a92d420ec832a5ccd05d90f3d665427baba94c64333a02369096f658cffe407b.exe 2480 a92d420ec832a5ccd05d90f3d665427baba94c64333a02369096f658cffe407b.exe 2480 a92d420ec832a5ccd05d90f3d665427baba94c64333a02369096f658cffe407b.exe 2480 a92d420ec832a5ccd05d90f3d665427baba94c64333a02369096f658cffe407b.exe 2480 a92d420ec832a5ccd05d90f3d665427baba94c64333a02369096f658cffe407b.exe 2480 a92d420ec832a5ccd05d90f3d665427baba94c64333a02369096f658cffe407b.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2480 a92d420ec832a5ccd05d90f3d665427baba94c64333a02369096f658cffe407b.exe Token: SeTcbPrivilege 2480 a92d420ec832a5ccd05d90f3d665427baba94c64333a02369096f658cffe407b.exe Token: SeDebugPrivilege 3308 1bcc537c Token: SeTcbPrivilege 3308 1bcc537c
Processes
-
C:\Users\Admin\AppData\Local\Temp\a92d420ec832a5ccd05d90f3d665427baba94c64333a02369096f658cffe407b.exe"C:\Users\Admin\AppData\Local\Temp\a92d420ec832a5ccd05d90f3d665427baba94c64333a02369096f658cffe407b.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:2480
-
C:\Windows\Syswow64\1bcc537cC:\Windows\Syswow64\1bcc537c1⤵
- 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:3308
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\1bcc537c
- Size 761KB
- SHA256 a22701dc9177f296a6ad07b722e699d8728ce1ee02687811f1fac2ee0100053c
- MD5 23860d1c1944ba27ca6ace775952805d
- SHA1 25b26e2b5e119fe946a944a233f1f747222850ca
- SHA512 2cae68346624972a02dfb9f890f2105ec548c25b9bde2a27d04e30e3d53f9666351658ae226e4a46df15ae3dce9dec72cbde452cc064c440e3c8361e80fe062f
- SSDEEP 12288:eSvO2x9mONvKRwLSFtsOkxHya5hYIW0p98B:dvO2xJKRw2kOkxSkW298B
- TLSH T170F49E35A2808036C0B34532C6F94AABF9797D35631565CBA3843B662F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH