Analysis
- max time kernel
150s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
05/09/2026, 01:57
Behavioral task
behavioral1
Sample
d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe
- Size 560KB
- Sample260905-cdeqaavcpc
- SHA256 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c
- MD5 36fe8bd10896744980ebb32b09360c75
- SHA1 e46942d43fe00e74ccd51412657222c966d3040f
- SHA512 e62168ea0f77feb6575d1dd6783663350a1791a3926f2560458333979803e8dfa266ab64434635f844b82628440e1d53038756826ea61b678d2f0c83acb3ffd2
- SSDEEP 12288:fftONCx61vvGEYQFNEhyQU/lLi2IsOkxHy:HtONCTU/lmaOkxS
- TLSH T137C48E29B6E0C076C4B79574C4A186BAFAB17432372089CFA39407571F637D2BA3974E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 3640 48a0a07d - 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 3432 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe Destination IP 4 223.5.5.5 3432 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe Destination IP 27 114.114.114.114 3432 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe Destination IP 28 223.5.5.5 3432 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 48a0a07d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 48a0a07d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 48a0a07d File created C:\Windows\SysWOW64\48a0a07d d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 48a0a07d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 48a0a07d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 48a0a07d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 48a0a07d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 48a0a07d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 48a0a07d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 48a0a07d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 48a0a07d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 48a0a07d -
resource yara_rule behavioral2/memory/3432-0-0x00000000002A0000-0x000000000032C000-memory.dmp upx behavioral2/files/0x000900000001b1c8-2.dat upx behavioral2/memory/3640-3-0x0000000000070000-0x00000000000FC000-memory.dmp upx behavioral2/memory/3432-16-0x00000000002A0000-0x000000000032C000-memory.dmp upx behavioral2/memory/3640-17-0x0000000000070000-0x00000000000FC000-memory.dmp upx behavioral2/memory/3640-31-0x0000000000070000-0x00000000000FC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\3e5170 48a0a07d File opened for modification C:\Windows\3ac1d0 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.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 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 48a0a07d - 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 48a0a07d Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 48a0a07d Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 48a0a07d Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 48a0a07d Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 48a0a07d Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 48a0a07d Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 48a0a07d Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 48a0a07d Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 48a0a07d - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 3640 48a0a07d 3640 48a0a07d 3640 48a0a07d 3640 48a0a07d 3640 48a0a07d 3640 48a0a07d 3640 48a0a07d 3640 48a0a07d 3432 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe 3432 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe 3432 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe 3432 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe 3432 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe 3432 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe 3432 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe 3432 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe 3432 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe 3432 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe 3432 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe 3432 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe 3432 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe 3432 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3432 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe Token: SeTcbPrivilege 3432 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe Token: SeDebugPrivilege 3640 48a0a07d Token: SeTcbPrivilege 3640 48a0a07d
Processes
-
C:\Users\Admin\AppData\Local\Temp\d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe"C:\Users\Admin\AppData\Local\Temp\d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.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:3432
-
C:\Windows\Syswow64\48a0a07dC:\Windows\Syswow64\48a0a07d1⤵
- 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:3640
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\48a0a07d
- Size 560KB
- SHA256 fa018129398669921db7d0131e7831791afbe387bb973182fc0f66bb2727d857
- MD5 9bd3084db55d14187eebc18423381ba0
- SHA1 bf0390b223a4c5622bb5fba062fd575d094e134f
- SHA512 532ad20631c29b942dbc24646ad5bf6d440398243dc98b9df6ee60c126a13d98a85231bf9359892ccd7fa79e3704997afaca0204861597789415edfe829f0fb2
- SSDEEP 12288:bftONCx61vvGEYQFNEhyQU/lLi2IsOkxHy:DtONCTU/lmaOkxS
- TLSH T196C48E29B6E0C076C4B79574C4A186BAFAB17432372089CFA39407571F637D2BA3974E
- MD5 SHA1 SHA512 SSDEEP TLSH