Analysis
- max time kernel
149s - max time network
149s - 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, 03:53
Behavioral task
behavioral1
Sample
be31703d4e55c772989449933ed4be00d5873dbe30a32a4a553a995684592f3a.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target be31703d4e55c772989449933ed4be00d5873dbe30a32a4a553a995684592f3a.exe
- Size 766KB
- Sample260529-ef5qlact8p
- SHA256 be31703d4e55c772989449933ed4be00d5873dbe30a32a4a553a995684592f3a
- MD5 8cb77f8531255141b36c4a0a36aa354b
- SHA1 83054b7df396ccb27f7456dfa4e9acb44b46cb94
- SHA512 4f7c35daa0373a01a8b3a91c77c7b9751bcd972c0b7314ed6619b9d0df9446d7d6b221f707b75ed12fc0b5ccb121e80f4dde263ff6fc439dbc3471090b450bbc
- SSDEEP 12288:wSvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/Liw:rvO2xJKRw2kOkx2LFRvcUV
- TLSH T1B4F45A31E241C03AD0A74576C6FA0BAFE564BD25531155CBA3C43A6A2FB36D2BE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4200 76930c0a - 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 2612 be31703d4e55c772989449933ed4be00d5873dbe30a32a4a553a995684592f3a.exe Destination IP 2 223.5.5.5 2612 be31703d4e55c772989449933ed4be00d5873dbe30a32a4a553a995684592f3a.exe Destination IP 21 114.114.114.114 2612 be31703d4e55c772989449933ed4be00d5873dbe30a32a4a553a995684592f3a.exe Destination IP 22 223.5.5.5 2612 be31703d4e55c772989449933ed4be00d5873dbe30a32a4a553a995684592f3a.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\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 76930c0a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 76930c0a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 76930c0a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 76930c0a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 76930c0a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 76930c0a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 76930c0a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 76930c0a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 76930c0a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 76930c0a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 76930c0a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 76930c0a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C 76930c0a File created C:\Windows\SysWOW64\76930c0a be31703d4e55c772989449933ed4be00d5873dbe30a32a4a553a995684592f3a.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C 76930c0a -
resource yara_rule behavioral2/memory/2612-0-0x0000000000090000-0x000000000011C000-memory.dmp upx behavioral2/files/0x001d00000002b287-3.dat upx behavioral2/memory/4200-4-0x0000000000C10000-0x0000000000C9C000-memory.dmp upx behavioral2/memory/2612-15-0x0000000000090000-0x000000000011C000-memory.dmp upx behavioral2/memory/4200-16-0x0000000000C10000-0x0000000000C9C000-memory.dmp upx behavioral2/memory/4200-28-0x0000000000C10000-0x0000000000C9C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\47e7d0 76930c0a File opened for modification C:\Windows\2cb7e8 be31703d4e55c772989449933ed4be00d5873dbe30a32a4a553a995684592f3a.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 be31703d4e55c772989449933ed4be00d5873dbe30a32a4a553a995684592f3a.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 76930c0a - 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 76930c0a Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 76930c0a Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 76930c0a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 76930c0a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 76930c0a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 76930c0a Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 76930c0a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 76930c0a Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 76930c0a - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4200 76930c0a 4200 76930c0a 4200 76930c0a 4200 76930c0a 4200 76930c0a 4200 76930c0a 4200 76930c0a 4200 76930c0a 2612 be31703d4e55c772989449933ed4be00d5873dbe30a32a4a553a995684592f3a.exe 2612 be31703d4e55c772989449933ed4be00d5873dbe30a32a4a553a995684592f3a.exe 2612 be31703d4e55c772989449933ed4be00d5873dbe30a32a4a553a995684592f3a.exe 2612 be31703d4e55c772989449933ed4be00d5873dbe30a32a4a553a995684592f3a.exe 2612 be31703d4e55c772989449933ed4be00d5873dbe30a32a4a553a995684592f3a.exe 2612 be31703d4e55c772989449933ed4be00d5873dbe30a32a4a553a995684592f3a.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2612 be31703d4e55c772989449933ed4be00d5873dbe30a32a4a553a995684592f3a.exe Token: SeTcbPrivilege 2612 be31703d4e55c772989449933ed4be00d5873dbe30a32a4a553a995684592f3a.exe Token: SeDebugPrivilege 4200 76930c0a Token: SeTcbPrivilege 4200 76930c0a
Processes
-
C:\Users\Admin\AppData\Local\Temp\be31703d4e55c772989449933ed4be00d5873dbe30a32a4a553a995684592f3a.exe"C:\Users\Admin\AppData\Local\Temp\be31703d4e55c772989449933ed4be00d5873dbe30a32a4a553a995684592f3a.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:2612
-
C:\Windows\Syswow64\76930c0aC:\Windows\Syswow64\76930c0a1⤵
- 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:4200
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Windows\SysWOW64\76930c0a
- Size 766KB
- SHA256 6af96ff2f67f61f6bb750d91ddcdecf6d2cffc427c29476ae978b06df325413e
- MD5 5a8cc57698d0695d6902030e62cca283
- SHA1 ab09f5058eac882f193764ee6c8ef36846a1f69e
- SHA512 361235366e3e0cb9de0119a02915c50ab46a8e7823714708cfd89bc4cc98fa5a4d8ee3140ada8f013e5d0f5ef8113b145ab6d1870eb070ae7f4141fa3930b4ee
- SSDEEP 12288:XSvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/Liw:ivO2xJKRw2kOkx2LFRvcUV
- TLSH T1D4F45A31E241C03AD0A74576C6FA0BAFE564BD25531155CBA3C43A6A2FB36D2BE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH