Analysis
- max time kernel
148s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
20/07/2026, 19:23
Behavioral task
behavioral1
Sample
6b91a528949098d695db4ef4e7f6dc5ae91dcab67ca6202b5aa792e16f19384e.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target 6b91a528949098d695db4ef4e7f6dc5ae91dcab67ca6202b5aa792e16f19384e.exe
- Size 766KB
- Sample260720-x3tkyscz4p
- SHA256 6b91a528949098d695db4ef4e7f6dc5ae91dcab67ca6202b5aa792e16f19384e
- MD5 8ff0e9366330ed9d6166c99ecb0203aa
- SHA1 1958186dc36b22f01b9802a2d8df87cadf942ef0
- SHA512 ed76c8a0322f8543858611ecc620798445ccc7e185137ff7ccfb492b1e651447edac65995b2937abdc5dd84f4540e65fbe9497eb4ed2bee0436a643095d01367
- SSDEEP 12288:3SvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/Liw:CvO2xJKRw2kOkx2LFRvcUV
- TLSH T195F45A31E241C03AD0A74576C6FA0BAFE564BD25531155CBA3C43A6A2FB36D2BE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 3732 424b5000 - 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 3548 6b91a528949098d695db4ef4e7f6dc5ae91dcab67ca6202b5aa792e16f19384e.exe Destination IP 4 223.5.5.5 3548 6b91a528949098d695db4ef4e7f6dc5ae91dcab67ca6202b5aa792e16f19384e.exe Destination IP 18 114.114.114.114 3548 6b91a528949098d695db4ef4e7f6dc5ae91dcab67ca6202b5aa792e16f19384e.exe Destination IP 19 223.5.5.5 3548 6b91a528949098d695db4ef4e7f6dc5ae91dcab67ca6202b5aa792e16f19384e.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 424b5000 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 424b5000 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 424b5000 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 424b5000 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 424b5000 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 424b5000 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 424b5000 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 424b5000 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 424b5000 File created C:\Windows\SysWOW64\424b5000 6b91a528949098d695db4ef4e7f6dc5ae91dcab67ca6202b5aa792e16f19384e.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 424b5000 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 424b5000 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 424b5000 -
resource yara_rule behavioral2/memory/3548-0-0x0000000000590000-0x000000000061C000-memory.dmp upx behavioral2/files/0x00160000000115f5-2.dat upx behavioral2/memory/3732-3-0x0000000000910000-0x000000000099C000-memory.dmp upx behavioral2/memory/3548-16-0x0000000000590000-0x000000000061C000-memory.dmp upx behavioral2/memory/3732-17-0x0000000000910000-0x000000000099C000-memory.dmp upx behavioral2/memory/3732-32-0x0000000000910000-0x000000000099C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\3fe4a8 424b5000 File opened for modification C:\Windows\3cbe38 6b91a528949098d695db4ef4e7f6dc5ae91dcab67ca6202b5aa792e16f19384e.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 6b91a528949098d695db4ef4e7f6dc5ae91dcab67ca6202b5aa792e16f19384e.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 424b5000 - 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 424b5000 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 424b5000 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 424b5000 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 424b5000 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 424b5000 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 424b5000 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 424b5000 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 424b5000 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 424b5000 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 3732 424b5000 3732 424b5000 3732 424b5000 3732 424b5000 3732 424b5000 3732 424b5000 3732 424b5000 3732 424b5000 3548 6b91a528949098d695db4ef4e7f6dc5ae91dcab67ca6202b5aa792e16f19384e.exe 3548 6b91a528949098d695db4ef4e7f6dc5ae91dcab67ca6202b5aa792e16f19384e.exe 3548 6b91a528949098d695db4ef4e7f6dc5ae91dcab67ca6202b5aa792e16f19384e.exe 3548 6b91a528949098d695db4ef4e7f6dc5ae91dcab67ca6202b5aa792e16f19384e.exe 3548 6b91a528949098d695db4ef4e7f6dc5ae91dcab67ca6202b5aa792e16f19384e.exe 3548 6b91a528949098d695db4ef4e7f6dc5ae91dcab67ca6202b5aa792e16f19384e.exe 3548 6b91a528949098d695db4ef4e7f6dc5ae91dcab67ca6202b5aa792e16f19384e.exe 3548 6b91a528949098d695db4ef4e7f6dc5ae91dcab67ca6202b5aa792e16f19384e.exe 3548 6b91a528949098d695db4ef4e7f6dc5ae91dcab67ca6202b5aa792e16f19384e.exe 3548 6b91a528949098d695db4ef4e7f6dc5ae91dcab67ca6202b5aa792e16f19384e.exe 3548 6b91a528949098d695db4ef4e7f6dc5ae91dcab67ca6202b5aa792e16f19384e.exe 3548 6b91a528949098d695db4ef4e7f6dc5ae91dcab67ca6202b5aa792e16f19384e.exe 3548 6b91a528949098d695db4ef4e7f6dc5ae91dcab67ca6202b5aa792e16f19384e.exe 3548 6b91a528949098d695db4ef4e7f6dc5ae91dcab67ca6202b5aa792e16f19384e.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3548 6b91a528949098d695db4ef4e7f6dc5ae91dcab67ca6202b5aa792e16f19384e.exe Token: SeTcbPrivilege 3548 6b91a528949098d695db4ef4e7f6dc5ae91dcab67ca6202b5aa792e16f19384e.exe Token: SeDebugPrivilege 3732 424b5000 Token: SeTcbPrivilege 3732 424b5000
Processes
-
C:\Users\Admin\AppData\Local\Temp\6b91a528949098d695db4ef4e7f6dc5ae91dcab67ca6202b5aa792e16f19384e.exe"C:\Users\Admin\AppData\Local\Temp\6b91a528949098d695db4ef4e7f6dc5ae91dcab67ca6202b5aa792e16f19384e.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:3548
-
C:\Windows\Syswow64\424b5000C:\Windows\Syswow64\424b50001⤵
- 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:3732
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\424b5000
- Size 766KB
- SHA256 a9fa682b3874742834c6c40000613652a3ee1e0fff2ff4ce064304ce02d13262
- MD5 1050694adb283427d28c4618044dcfae
- SHA1 eb4561c2b51d5ed1a71e2851e11dcf61082adc90
- SHA512 07ba0e8e919c667443985ee52ac65931084a9e9a91937550d2ca19454cf7640390cb117f2d40cb0dd629ccf5dcfc68326c2b6ba8cbbde6893bee92a96c9923d2
- SSDEEP 12288:RSvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/Liw:4vO2xJKRw2kOkx2LFRvcUV
- TLSH T12EF45A31E241C03AD0A74576C6FA0BAFE564BD25531155CBA3C43A6A2FB36D2BE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH