Analysis
- max time kernel
150s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
22/08/2026, 22:09
Behavioral task
behavioral1
Sample
e55863ca5a697c4f35c8e213a6218ad6feeefcc16f680b9b24b2e13d1138c48e.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target e55863ca5a697c4f35c8e213a6218ad6feeefcc16f680b9b24b2e13d1138c48e.exe
- Size 3.0MB
- Sample260822-12tfcazejf
- SHA256 e55863ca5a697c4f35c8e213a6218ad6feeefcc16f680b9b24b2e13d1138c48e
- MD5 db6dd22417f55025e77c4d308f8ea5e7
- SHA1 6aba5d979396be907cd6f2aa2fca50731d5f044a
- SHA512 1e2130738437a61010f90d599ac51dca8809b71c5d9eda88edb1437d5c7626d5a768429e39c516d89b65eb650a208e9143702afc299341c3377b36e32ab69e6b
- SSDEEP 49152:0A/JuTQKqVmgbQIzZMPXpB91rHpn/qKmNAOaG6IOY/:D/whnLrHp/qKm2/Sb/
- TLSH T129E55953EB914AE8E39D0536DF544150E72AF2256BEF13A27428420DDE83387BF61A3D
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 6004 833fcb20 - Unexpected DNS network traffic destination 5 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 22 223.5.5.5 5396 e55863ca5a697c4f35c8e213a6218ad6feeefcc16f680b9b24b2e13d1138c48e.exe Destination IP 63 114.114.114.114 5396 e55863ca5a697c4f35c8e213a6218ad6feeefcc16f680b9b24b2e13d1138c48e.exe Destination IP 1 114.114.114.114 5396 e55863ca5a697c4f35c8e213a6218ad6feeefcc16f680b9b24b2e13d1138c48e.exe Destination IP 2 223.5.5.5 5396 e55863ca5a697c4f35c8e213a6218ad6feeefcc16f680b9b24b2e13d1138c48e.exe Destination IP 20 114.114.114.114 5396 e55863ca5a697c4f35c8e213a6218ad6feeefcc16f680b9b24b2e13d1138c48e.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 833fcb20 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 833fcb20 File created C:\Windows\SysWOW64\833fcb20 e55863ca5a697c4f35c8e213a6218ad6feeefcc16f680b9b24b2e13d1138c48e.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 833fcb20 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 833fcb20 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 833fcb20 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 833fcb20 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 833fcb20 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 833fcb20 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 833fcb20 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 833fcb20 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 833fcb20 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 833fcb20 -
resource yara_rule behavioral2/memory/5396-0-0x0000000000A80000-0x0000000000D85000-memory.dmp upx behavioral2/files/0x000d000000016cdc-2.dat upx behavioral2/memory/6004-3-0x00000000000D0000-0x00000000003D5000-memory.dmp upx behavioral2/memory/5396-7-0x0000000000A80000-0x0000000000D85000-memory.dmp upx behavioral2/memory/6004-8-0x00000000000D0000-0x00000000003D5000-memory.dmp upx behavioral2/memory/6004-18-0x00000000000D0000-0x00000000003D5000-memory.dmp upx - 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 e55863ca5a697c4f35c8e213a6218ad6feeefcc16f680b9b24b2e13d1138c48e.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 833fcb20 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 833fcb20 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 833fcb20 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 833fcb20 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 833fcb20 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 833fcb20 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 833fcb20 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 833fcb20 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 833fcb20 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 833fcb20 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 6004 833fcb20 6004 833fcb20 6004 833fcb20 6004 833fcb20 6004 833fcb20 6004 833fcb20 6004 833fcb20 6004 833fcb20 5396 e55863ca5a697c4f35c8e213a6218ad6feeefcc16f680b9b24b2e13d1138c48e.exe 5396 e55863ca5a697c4f35c8e213a6218ad6feeefcc16f680b9b24b2e13d1138c48e.exe 5396 e55863ca5a697c4f35c8e213a6218ad6feeefcc16f680b9b24b2e13d1138c48e.exe 5396 e55863ca5a697c4f35c8e213a6218ad6feeefcc16f680b9b24b2e13d1138c48e.exe 5396 e55863ca5a697c4f35c8e213a6218ad6feeefcc16f680b9b24b2e13d1138c48e.exe 5396 e55863ca5a697c4f35c8e213a6218ad6feeefcc16f680b9b24b2e13d1138c48e.exe 5396 e55863ca5a697c4f35c8e213a6218ad6feeefcc16f680b9b24b2e13d1138c48e.exe 5396 e55863ca5a697c4f35c8e213a6218ad6feeefcc16f680b9b24b2e13d1138c48e.exe 5396 e55863ca5a697c4f35c8e213a6218ad6feeefcc16f680b9b24b2e13d1138c48e.exe 5396 e55863ca5a697c4f35c8e213a6218ad6feeefcc16f680b9b24b2e13d1138c48e.exe 5396 e55863ca5a697c4f35c8e213a6218ad6feeefcc16f680b9b24b2e13d1138c48e.exe 5396 e55863ca5a697c4f35c8e213a6218ad6feeefcc16f680b9b24b2e13d1138c48e.exe 5396 e55863ca5a697c4f35c8e213a6218ad6feeefcc16f680b9b24b2e13d1138c48e.exe 5396 e55863ca5a697c4f35c8e213a6218ad6feeefcc16f680b9b24b2e13d1138c48e.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 5396 e55863ca5a697c4f35c8e213a6218ad6feeefcc16f680b9b24b2e13d1138c48e.exe Token: SeTcbPrivilege 5396 e55863ca5a697c4f35c8e213a6218ad6feeefcc16f680b9b24b2e13d1138c48e.exe Token: SeDebugPrivilege 6004 833fcb20 Token: SeTcbPrivilege 6004 833fcb20
Processes
-
C:\Users\Admin\AppData\Local\Temp\e55863ca5a697c4f35c8e213a6218ad6feeefcc16f680b9b24b2e13d1138c48e.exe"C:\Users\Admin\AppData\Local\Temp\e55863ca5a697c4f35c8e213a6218ad6feeefcc16f680b9b24b2e13d1138c48e.exe"1⤵
- Unexpected DNS network traffic destination
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5396
-
C:\Windows\Syswow64\833fcb20C:\Windows\Syswow64\833fcb201⤵
- Executes dropped EXE
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:6004
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\833fcb20
- Size 3.0MB
- SHA256 a5edc976aee66cdbb851e19521ecf0d24e575041bfd6e8f9059592a22599ef24
- MD5 d9fba44b35570b1600c32b99c02872d2
- SHA1 dcf4c2be55b0a18981104afab738c47b62e2627e
- SHA512 74365923cfe1e21e17d3c447860cdf23eb3d9516194873f1100388ddb0161194e56021d377fbaecb112f7c84ea50a7caf3ea40fa9c2166f111c43860ac18443a
- SSDEEP 49152:pA/JuTQKqVmgbQIzZMPXpB91rHpn/qKmNAOaG6IOY/:e/whnLrHp/qKm2/Sb/
- TLSH T10FE55953EB914AE8E39D0536DF544150E72AF2256BEF13A27428420DDE83387BF61A3D
- MD5 SHA1 SHA512 SSDEEP TLSH