Analysis
- max time kernel
149s - max time network
153s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
29/05/2026, 03:50
Behavioral task
behavioral1
Sample
d504871b5f61b8c3feeb5d8fb5b9be14d53a5181be254b6663313757f4587f02.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target d504871b5f61b8c3feeb5d8fb5b9be14d53a5181be254b6663313757f4587f02.exe
- Size 761KB
- Sample260529-ed73yact4k
- SHA256 d504871b5f61b8c3feeb5d8fb5b9be14d53a5181be254b6663313757f4587f02
- MD5 ff9f048a94e96c41d0ca2e51cc53ed84
- SHA1 4ca8c5cacac0b84c788c5f43106aeb0ee8f601a2
- SHA512 e7e336ed335e7a2ebf83d42b75c2fa3203cc92888c4e66dc574d7a47ab62508772093d298d678fb6c9a7ae9c73f2b17c81363de7360f31d1c3e3522f6c119422
- SSDEEP 12288:vSvO2x9mONvKRwLSFtsOkxHya5hYIW0p98B:avO2xJKRw2kOkxSkW298B
- TLSH T179F49E35A2808036C0B34532C6F94AABF9797D35631565CBA3843B662F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 1312 72019fc4 - 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 1476 d504871b5f61b8c3feeb5d8fb5b9be14d53a5181be254b6663313757f4587f02.exe Destination IP 2 223.5.5.5 1476 d504871b5f61b8c3feeb5d8fb5b9be14d53a5181be254b6663313757f4587f02.exe Destination IP 20 114.114.114.114 1476 d504871b5f61b8c3feeb5d8fb5b9be14d53a5181be254b6663313757f4587f02.exe Destination IP 21 223.5.5.5 1476 d504871b5f61b8c3feeb5d8fb5b9be14d53a5181be254b6663313757f4587f02.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 72019fc4 File created C:\Windows\SysWOW64\72019fc4 d504871b5f61b8c3feeb5d8fb5b9be14d53a5181be254b6663313757f4587f02.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 72019fc4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 72019fc4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 72019fc4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 72019fc4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 72019fc4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 72019fc4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 72019fc4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 72019fc4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 72019fc4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 72019fc4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 72019fc4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 72019fc4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 72019fc4 -
resource yara_rule behavioral2/memory/1476-0-0x0000000000200000-0x000000000028C000-memory.dmp upx behavioral2/files/0x001f00000002b232-2.dat upx behavioral2/memory/1312-4-0x0000000000990000-0x0000000000A1C000-memory.dmp upx behavioral2/memory/1476-10-0x0000000000200000-0x000000000028C000-memory.dmp upx behavioral2/memory/1312-11-0x0000000000990000-0x0000000000A1C000-memory.dmp upx behavioral2/memory/1312-30-0x0000000000990000-0x0000000000A1C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\167640 72019fc4 File opened for modification C:\Windows\194508 d504871b5f61b8c3feeb5d8fb5b9be14d53a5181be254b6663313757f4587f02.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 d504871b5f61b8c3feeb5d8fb5b9be14d53a5181be254b6663313757f4587f02.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 72019fc4 - 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 72019fc4 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 72019fc4 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 72019fc4 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 72019fc4 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 72019fc4 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 72019fc4 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 72019fc4 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 72019fc4 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 72019fc4 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 1312 72019fc4 1312 72019fc4 1312 72019fc4 1312 72019fc4 1312 72019fc4 1312 72019fc4 1312 72019fc4 1312 72019fc4 1476 d504871b5f61b8c3feeb5d8fb5b9be14d53a5181be254b6663313757f4587f02.exe 1476 d504871b5f61b8c3feeb5d8fb5b9be14d53a5181be254b6663313757f4587f02.exe 1476 d504871b5f61b8c3feeb5d8fb5b9be14d53a5181be254b6663313757f4587f02.exe 1476 d504871b5f61b8c3feeb5d8fb5b9be14d53a5181be254b6663313757f4587f02.exe 1476 d504871b5f61b8c3feeb5d8fb5b9be14d53a5181be254b6663313757f4587f02.exe 1476 d504871b5f61b8c3feeb5d8fb5b9be14d53a5181be254b6663313757f4587f02.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1476 d504871b5f61b8c3feeb5d8fb5b9be14d53a5181be254b6663313757f4587f02.exe Token: SeTcbPrivilege 1476 d504871b5f61b8c3feeb5d8fb5b9be14d53a5181be254b6663313757f4587f02.exe Token: SeDebugPrivilege 1312 72019fc4 Token: SeTcbPrivilege 1312 72019fc4
Processes
-
C:\Users\Admin\AppData\Local\Temp\d504871b5f61b8c3feeb5d8fb5b9be14d53a5181be254b6663313757f4587f02.exe"C:\Users\Admin\AppData\Local\Temp\d504871b5f61b8c3feeb5d8fb5b9be14d53a5181be254b6663313757f4587f02.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:1476
-
C:\Windows\Syswow64\72019fc4C:\Windows\Syswow64\72019fc41⤵
- 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:1312
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\72019fc4
- Size 761KB
- SHA256 5969466f2d1ec081caf5f0e77547d5c636539163a73d0c83663c804ec26a095b
- MD5 15b6abad8128fc79623f57e81b0b6b1e
- SHA1 76475eff289dfd4a7d7a123a81ad6c6c0b533572
- SHA512 cbebca1beeef3551dbc729730a1189e33abb3f4e8d48fe8b3d5b6e9c95756c2d5f294edbed97526e170299a4a538f6ed9315826db7d4ae02c5a7f94005378a8c
- SSDEEP 12288:zSvO2x9mONvKRwLSFtsOkxHya5hYIW0p98B:GvO2xJKRw2kOkxSkW298B
- TLSH T109F49E35A2808036C0B34532C6F94AABF9797D35631565CBA3843B662F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH