Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
30/07/2026, 04:13
Behavioral task
behavioral1
Sample
c856ce175da41b125c2750e5f0dfc41c8bd4c8401056c557f71fa1e9e2c7b1fc.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target c856ce175da41b125c2750e5f0dfc41c8bd4c8401056c557f71fa1e9e2c7b1fc.exe
- Size 560KB
- Sample260730-es4dassyew
- SHA256 c856ce175da41b125c2750e5f0dfc41c8bd4c8401056c557f71fa1e9e2c7b1fc
- MD5 7d95835628d77eeb1555efafd2132bfb
- SHA1 0221fa990c18dd17e5ce90edbd65724493b81f0f
- SHA512 134f8c69b38cf8f033cb55af0548ef8c20c2ae8f9916813ccb86850da176656f295e6c67ddc4b9fd21ab0fef7e78ee4013ddd13b43cb8222f22ee22fdb6d44d8
- SSDEEP 6144:1UJJuV1cdhIoA7vJ0CLoCgvDLe4AmFvirGcEOkCybEaQRuy8K:1YsVOdhElvkCgvDLe4usOkxHy
- TLSH T160C48D29B6D0C036C5B39574C4A186BAEAB17432372549CFA3D5475A0F337E2BA7930E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 5048 f4316d36 - 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 40 114.114.114.114 1944 c856ce175da41b125c2750e5f0dfc41c8bd4c8401056c557f71fa1e9e2c7b1fc.exe Destination IP 41 223.5.5.5 1944 c856ce175da41b125c2750e5f0dfc41c8bd4c8401056c557f71fa1e9e2c7b1fc.exe Destination IP 3 114.114.114.114 1944 c856ce175da41b125c2750e5f0dfc41c8bd4c8401056c557f71fa1e9e2c7b1fc.exe Destination IP 4 223.5.5.5 1944 c856ce175da41b125c2750e5f0dfc41c8bd4c8401056c557f71fa1e9e2c7b1fc.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\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 f4316d36 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 f4316d36 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies f4316d36 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 f4316d36 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 f4316d36 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 f4316d36 File created C:\Windows\SysWOW64\f4316d36 c856ce175da41b125c2750e5f0dfc41c8bd4c8401056c557f71fa1e9e2c7b1fc.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 f4316d36 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE f4316d36 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft f4316d36 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache f4316d36 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content f4316d36 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 f4316d36 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 f4316d36 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData f4316d36 -
resource yara_rule behavioral1/memory/1944-0-0x0000000000B90000-0x0000000000C1C000-memory.dmp upx behavioral1/files/0x0006000000016917-2.dat upx behavioral1/memory/5048-4-0x0000000000870000-0x00000000008FC000-memory.dmp upx behavioral1/memory/1944-10-0x0000000000B90000-0x0000000000C1C000-memory.dmp upx behavioral1/memory/5048-11-0x0000000000870000-0x00000000008FC000-memory.dmp upx behavioral1/memory/5048-27-0x0000000000870000-0x00000000008FC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\566c70 f4316d36 File opened for modification C:\Windows\214830 c856ce175da41b125c2750e5f0dfc41c8bd4c8401056c557f71fa1e9e2c7b1fc.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 c856ce175da41b125c2750e5f0dfc41c8bd4c8401056c557f71fa1e9e2c7b1fc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language f4316d36 - 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" f4316d36 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" f4316d36 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing f4316d36 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" f4316d36 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" f4316d36 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ f4316d36 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" f4316d36 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix f4316d36 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" f4316d36 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 5048 f4316d36 5048 f4316d36 5048 f4316d36 5048 f4316d36 5048 f4316d36 5048 f4316d36 5048 f4316d36 5048 f4316d36 1944 c856ce175da41b125c2750e5f0dfc41c8bd4c8401056c557f71fa1e9e2c7b1fc.exe 1944 c856ce175da41b125c2750e5f0dfc41c8bd4c8401056c557f71fa1e9e2c7b1fc.exe 1944 c856ce175da41b125c2750e5f0dfc41c8bd4c8401056c557f71fa1e9e2c7b1fc.exe 1944 c856ce175da41b125c2750e5f0dfc41c8bd4c8401056c557f71fa1e9e2c7b1fc.exe 1944 c856ce175da41b125c2750e5f0dfc41c8bd4c8401056c557f71fa1e9e2c7b1fc.exe 1944 c856ce175da41b125c2750e5f0dfc41c8bd4c8401056c557f71fa1e9e2c7b1fc.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1944 c856ce175da41b125c2750e5f0dfc41c8bd4c8401056c557f71fa1e9e2c7b1fc.exe Token: SeTcbPrivilege 1944 c856ce175da41b125c2750e5f0dfc41c8bd4c8401056c557f71fa1e9e2c7b1fc.exe Token: SeDebugPrivilege 5048 f4316d36 Token: SeTcbPrivilege 5048 f4316d36
Processes
-
C:\Users\Admin\AppData\Local\Temp\c856ce175da41b125c2750e5f0dfc41c8bd4c8401056c557f71fa1e9e2c7b1fc.exe"C:\Users\Admin\AppData\Local\Temp\c856ce175da41b125c2750e5f0dfc41c8bd4c8401056c557f71fa1e9e2c7b1fc.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:1944
-
C:\Windows\Syswow64\f4316d36C:\Windows\Syswow64\f4316d361⤵
- 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:5048
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\f4316d36
- Size 560KB
- SHA256 85329f4a4641d91a99fa0ebd827644ca1a69cde48a283ad3adaf5639e1829a7b
- MD5 1f966c16a3decb398798796f34ae3887
- SHA1 579c122520598c8ff293ef1de85b31dfc201a608
- SHA512 a8a78c867c013e441de5ccebd01af6a1ea08b66825bb6c8be9ad07e95efbba0b396091e76db2efcefbbe8177e6150b19e211b16c5ca915f89a0931e2bcf6d541
- SSDEEP 6144:5UJJuV1cdhIoA7vJ0CLoCgvDLe4AmFvirGcEOkCybEaQRuy8K:5YsVOdhElvkCgvDLe4usOkxHy
- TLSH T153C48D29B6D0C036C5B39574C4A186BAEAB17432372549CFA3D5475A0F337E2BA7930E
- MD5 SHA1 SHA512 SSDEEP TLSH