Analysis
- max time kernel
149s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
21/04/2026, 11:18
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
4b4e4bb53bf4129209aba2a211bedfb36c4987ee4d19468d9504bf28b3adf868.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
4b4e4bb53bf4129209aba2a211bedfb36c4987ee4d19468d9504bf28b3adf868.exe
Resource
win11-20260130-en
windows11-21h2-x64
8 signatures
150 seconds
General
- Target 4b4e4bb53bf4129209aba2a211bedfb36c4987ee4d19468d9504bf28b3adf868.exe
- Size 395KB
- Sample260421-nerxsadv3j
- SHA256 4b4e4bb53bf4129209aba2a211bedfb36c4987ee4d19468d9504bf28b3adf868
- MD5 0bce905ace42cc03fc0f923a47bd5a03
- SHA1 0231bad39c5b5db63a5ca846aea9ff386488f727
- SHA512 9ee92814be93ef11c0ee089697d8ffcbf9b704fd05a81ec9f1ae37dc6a2dc16e06badde5d860bf9bb92f7b873d561129bcc379d6e18f85401a168d61838ceff7
- SSDEEP 6144:Qg/AL1cVUoG1XRlL0wcJtL2KmEFEcEOkCybEaQRXr9HNdvOaty8K:QnLOVWLlowcJtL2KyOkx2LIaty
- TLSH T1CB847C26F6A08036C5B79578C4A396A6FFB1742137248ACFA390475A1F237E2BD3531D
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 5972 6840e7af - 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 4704 4b4e4bb53bf4129209aba2a211bedfb36c4987ee4d19468d9504bf28b3adf868.exe Destination IP 6 223.5.5.5 4704 4b4e4bb53bf4129209aba2a211bedfb36c4987ee4d19468d9504bf28b3adf868.exe Destination IP 33 114.114.114.114 4704 4b4e4bb53bf4129209aba2a211bedfb36c4987ee4d19468d9504bf28b3adf868.exe Destination IP 34 223.5.5.5 4704 4b4e4bb53bf4129209aba2a211bedfb36c4987ee4d19468d9504bf28b3adf868.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\AAD646CB44373074ADE741C38400E7E1 6840e7af File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C 6840e7af File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 6840e7af File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 6840e7af File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 6840e7af File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C 6840e7af File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 6840e7af File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 6840e7af File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 6840e7af File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\AAD646CB44373074ADE741C38400E7E1 6840e7af File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 6840e7af File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 6840e7af File created C:\Windows\SysWOW64\6840e7af 4b4e4bb53bf4129209aba2a211bedfb36c4987ee4d19468d9504bf28b3adf868.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 6840e7af File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 6840e7af - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\663e28 6840e7af File opened for modification C:\Windows\5088c0 4b4e4bb53bf4129209aba2a211bedfb36c4987ee4d19468d9504bf28b3adf868.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 6840e7af Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 4b4e4bb53bf4129209aba2a211bedfb36c4987ee4d19468d9504bf28b3adf868.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" 6840e7af Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 6840e7af Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 6840e7af Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 6840e7af Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 6840e7af Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 6840e7af Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 6840e7af Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 6840e7af Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 6840e7af - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 5972 6840e7af 5972 6840e7af 5972 6840e7af 5972 6840e7af 5972 6840e7af 5972 6840e7af 5972 6840e7af 5972 6840e7af 4704 4b4e4bb53bf4129209aba2a211bedfb36c4987ee4d19468d9504bf28b3adf868.exe 4704 4b4e4bb53bf4129209aba2a211bedfb36c4987ee4d19468d9504bf28b3adf868.exe 4704 4b4e4bb53bf4129209aba2a211bedfb36c4987ee4d19468d9504bf28b3adf868.exe 4704 4b4e4bb53bf4129209aba2a211bedfb36c4987ee4d19468d9504bf28b3adf868.exe 4704 4b4e4bb53bf4129209aba2a211bedfb36c4987ee4d19468d9504bf28b3adf868.exe 4704 4b4e4bb53bf4129209aba2a211bedfb36c4987ee4d19468d9504bf28b3adf868.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4704 4b4e4bb53bf4129209aba2a211bedfb36c4987ee4d19468d9504bf28b3adf868.exe Token: SeTcbPrivilege 4704 4b4e4bb53bf4129209aba2a211bedfb36c4987ee4d19468d9504bf28b3adf868.exe Token: SeDebugPrivilege 5972 6840e7af Token: SeTcbPrivilege 5972 6840e7af
Processes
-
C:\Users\Admin\AppData\Local\Temp\4b4e4bb53bf4129209aba2a211bedfb36c4987ee4d19468d9504bf28b3adf868.exe"C:\Users\Admin\AppData\Local\Temp\4b4e4bb53bf4129209aba2a211bedfb36c4987ee4d19468d9504bf28b3adf868.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:4704
-
C:\Windows\Syswow64\6840e7afC:\Windows\Syswow64\6840e7af1⤵
- 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:5972
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\6840e7af
- Size 395KB
- SHA256 e2ca6f3b9a559860d9ab77fb720f246f9bbdc97dda133b01ccf7b6c8b17aabe3
- MD5 6f9ee08b657894c2d2b7bbc2d50ecaea
- SHA1 654b129df0e0e64149564fe981c36c213367dd98
- SHA512 31b33750e4805229fffe36428d654a6d26c8213a4993cfdf1969deb0285a68b0f63ccec8a7722d3918c6150a2899f6487c2028c0d5c679b0e8f8ac7946ba5189
- SSDEEP 6144:/g/AL1cVUoG1XRlL0wcJtL2KmEFEcEOkCybEaQRXr9HNdvOaty8K:/nLOVWLlowcJtL2KyOkx2LIaty
- TLSH T1F8847C26F6A08036C5B79578C4A396A6FFB1742137248ACFA390475A1F237E2BD3531D
- MD5 SHA1 SHA512 SSDEEP TLSH