Analysis
- max time kernel
148s - max time network
155s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
20/09/2026, 23:59
Behavioral task
behavioral1
Sample
f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe
Resource
win10v2004-20260911-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe
- Size 1024KB
- Sample260920-314wssec47
- SHA256 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272
- MD5 c0742a08c07f5f28d21f02007b2a67bc
- SHA1 2532b60542e235b20685d2eeb96155c4124e3475
- SHA512 570122ff16301fd00fc53f961264257f6592260547e6c184c2c37b33ffdef1e97e0f040eed4117b14ab5394bde3e922001f08cfc3bcb2e34a3ab58cbac9f6c18
- SSDEEP 12288:JSvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/LikGU5rCOTeidH:wvO2xJKRw2kOkx2LFRvcU6UQOJdH
- TLSH T1E0256C31E681C036D5B34571C6FA4BBBA9647D21531165CBA3C47A2A2FB37D2BA3130E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 3608 75251990 - 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 4816 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe Destination IP 2 223.5.5.5 4816 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe Destination IP 13 114.114.114.114 4816 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe Destination IP 15 223.5.5.5 4816 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 75251990 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 75251990 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 75251990 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 75251990 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 75251990 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 75251990 File created C:\Windows\SysWOW64\75251990 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 75251990 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 75251990 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 75251990 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 75251990 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 75251990 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 75251990 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 75251990 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 75251990 -
resource yara_rule behavioral2/memory/4816-0-0x0000000000330000-0x00000000003BC000-memory.dmp upx behavioral2/files/0x000900000001b893-2.dat upx behavioral2/memory/3608-4-0x0000000000FB0000-0x000000000103C000-memory.dmp upx behavioral2/memory/4816-10-0x0000000000330000-0x00000000003BC000-memory.dmp upx behavioral2/memory/3608-11-0x0000000000FB0000-0x000000000103C000-memory.dmp upx behavioral2/memory/3608-36-0x0000000000FB0000-0x000000000103C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\3dc530 75251990 File opened for modification C:\Windows\5273a0 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.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 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 75251990 - 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\Cookies\CachePrefix = "Cookie:" 75251990 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 75251990 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 75251990 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 75251990 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 75251990 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 75251990 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 75251990 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 75251990 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 75251990 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 3608 75251990 3608 75251990 3608 75251990 3608 75251990 3608 75251990 3608 75251990 3608 75251990 3608 75251990 4816 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe 4816 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe 4816 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe 4816 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe 4816 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe 4816 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe 4816 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe 4816 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe 4816 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe 4816 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe 4816 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe 4816 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe 4816 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe 4816 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4816 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe Token: SeTcbPrivilege 4816 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe Token: SeDebugPrivilege 3608 75251990 Token: SeTcbPrivilege 3608 75251990
Processes
-
C:\Users\Admin\AppData\Local\Temp\f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe"C:\Users\Admin\AppData\Local\Temp\f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.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:4816
-
C:\Windows\Syswow64\75251990C:\Windows\Syswow64\752519901⤵
- 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:3608
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\75251990
- Size 1024KB
- SHA256 6f48b7838595c2a9f21957b5672532cc182318e7ef76580308733b069ba050d3
- MD5 93f94f0fc5cf19978791f542ec4fb7aa
- SHA1 44ed3002287d003cfd81a0054c69e3229d5f91ea
- SHA512 0a5506c4da8b64935362bdb7cb0524700108cc95fe515e89e4e55dbdea2e468979700daf495d0a497ca42861e50749d87d9c3d2c299de66390a4492af20db78f
- SSDEEP 12288:aSvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/LikGU5rCOTeidH:BvO2xJKRw2kOkx2LFRvcU6UQOJdH
- TLSH T191256C31E681C036D5B34571C6FA4BBBA9647D21531165CBA3C47A2A2FB37D2BA3130E
- MD5 SHA1 SHA512 SSDEEP TLSH