Analysis
- max time kernel
150s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
31/08/2026, 03:11
Behavioral task
behavioral1
Sample
c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe
- Size 761KB
- Sample260831-dpv23stfrc
- SHA256 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee
- MD5 73b6f191cf332a07442055789aaa34ee
- SHA1 94c5bc467e603812f7eb2bba0b8afc167072dde1
- SHA512 3c3930809297d2f764458d6a94709bd2202a61f10ee45f92fc7c513141401d56df1f1bc97d5a57cdd9b8d15fc01386f1f842d337ef4b87a68869793aa5d30901
- SSDEEP 12288:jSvO2x9mONvKRwLSFtsOkxHya5hYIW0p98B:WvO2xJKRw2kOkxSkW298B
- TLSH T18CF49E35A2808036C0B34532C6F94AABF9797D35631565CBA3843B662F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 2092 77fa4a31 - Unexpected DNS network traffic destination 18 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 41 223.5.5.5 4992 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe Destination IP 165 114.114.114.114 4992 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe Destination IP 235 114.114.114.114 4992 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe Destination IP 40 114.114.114.114 4992 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe Destination IP 292 114.114.114.114 4992 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe Destination IP 322 114.114.114.114 4992 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe Destination IP 323 223.5.5.5 4992 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe Destination IP 376 114.114.114.114 4992 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe Destination IP 95 114.114.114.114 2092 77fa4a31 Destination IP 96 223.5.5.5 4992 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe Destination IP 166 223.5.5.5 4992 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe Destination IP 236 223.5.5.5 4992 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe Destination IP 3 114.114.114.114 4992 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe Destination IP 102 114.114.114.114 4992 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe Destination IP 103 223.5.5.5 4992 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe Destination IP 377 223.5.5.5 4992 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe Destination IP 293 223.5.5.5 4992 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe Destination IP 4 223.5.5.5 4992 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 77fa4a31 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 77fa4a31 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 77fa4a31 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 77fa4a31 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 77fa4a31 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 77fa4a31 File created C:\Windows\SysWOW64\77fa4a31 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 77fa4a31 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 77fa4a31 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 77fa4a31 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 77fa4a31 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 77fa4a31 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 77fa4a31 -
resource yara_rule behavioral2/memory/4992-0-0x0000000000D50000-0x0000000000DDC000-memory.dmp upx behavioral2/memory/2092-3-0x00000000005B0000-0x000000000063C000-memory.dmp upx behavioral2/files/0x000d00000001b1d0-2.dat upx behavioral2/memory/4992-16-0x0000000000D50000-0x0000000000DDC000-memory.dmp upx behavioral2/memory/2092-17-0x00000000005B0000-0x000000000063C000-memory.dmp upx behavioral2/memory/2092-38-0x00000000005B0000-0x000000000063C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\23d0d8 77fa4a31 File opened for modification C:\Windows\557700 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.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 77fa4a31 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 77fa4a31 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 77fa4a31 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 77fa4a31 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 77fa4a31 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 77fa4a31 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 77fa4a31 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 77fa4a31 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 77fa4a31 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 77fa4a31 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 2092 77fa4a31 2092 77fa4a31 2092 77fa4a31 2092 77fa4a31 2092 77fa4a31 2092 77fa4a31 2092 77fa4a31 2092 77fa4a31 4992 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe 4992 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe 4992 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe 4992 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe 4992 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe 4992 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe 4992 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe 4992 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe 4992 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe 4992 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe 4992 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe 4992 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe 4992 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe 4992 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4992 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe Token: SeTcbPrivilege 4992 c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe Token: SeDebugPrivilege 2092 77fa4a31 Token: SeTcbPrivilege 2092 77fa4a31
Processes
-
C:\Users\Admin\AppData\Local\Temp\c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.exe"C:\Users\Admin\AppData\Local\Temp\c3d327426ef5199eafa86a08555f97dd506d70392bcc199b4771a491311e86ee.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:4992
-
C:\Windows\Syswow64\77fa4a31C:\Windows\Syswow64\77fa4a311⤵
- 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:2092
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Windows\SysWOW64\77fa4a31
- Size 761KB
- SHA256 d5d458f26087c27da74a39b1880dbb7d5520fa104a3253bf894f06c3666798ba
- MD5 d636ac6b9f792f097d290670055e8be3
- SHA1 4ddfe8c1d8fbc84dfd7be84bf327ece0109bad90
- SHA512 8afbc6b5a618b2c2c22a07d3e4f02550f8b9529d70afd7f30c78b4b8b1784977df742d4e628a5d495d8ed387470a58755424277af12b2cfc651d08a4931bd157
- SSDEEP 12288:PSvO2x9mONvKRwLSFtsOkxHya5hYIW0p98B:6vO2xJKRw2kOkxSkW298B
- TLSH T1E2F49E35A2808036C0B34532C6F94AABF9797D35631565CBA3843B662F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH