Analysis
- max time kernel
149s - max time network
156s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
08/05/2026, 22:26
Behavioral task
behavioral1
Sample
5a8e47fae4d5fc3eb2691d40a8f7f4c7c836b3c24e48538ffb8650a6f395ff9f.exe
Resource
win10v2004-20250619-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target 5a8e47fae4d5fc3eb2691d40a8f7f4c7c836b3c24e48538ffb8650a6f395ff9f.exe
- Size 830KB
- Sample260508-2cndgaay2k
- SHA256 5a8e47fae4d5fc3eb2691d40a8f7f4c7c836b3c24e48538ffb8650a6f395ff9f
- MD5 d6e197700306f50be2b2fb07d6dfb7ed
- SHA1 d5272ae0828fd5a60aeeac9fc980dddc72edf97c
- SHA512 200893c994231a7ee5216d56afa850be130cb12cca0f83b1a1739c52eb206550db83fd00bcfea93f1179f8324ca58e7e14ab2555ee472a2a2e537e7030451239
- SSDEEP 12288:TSvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/Lik8CQ3K:mvO2xJKRw2kOkx2LFRvcUQPK
- TLSH T1C9055A31E641C03AD0A74575C6FA4BBFE964BD25131165CBA3C43A262FB36D2BA3170E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4508 8d7d45c - 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 10 114.114.114.114 1456 5a8e47fae4d5fc3eb2691d40a8f7f4c7c836b3c24e48538ffb8650a6f395ff9f.exe Destination IP 11 223.5.5.5 1456 5a8e47fae4d5fc3eb2691d40a8f7f4c7c836b3c24e48538ffb8650a6f395ff9f.exe Destination IP 1 114.114.114.114 1456 5a8e47fae4d5fc3eb2691d40a8f7f4c7c836b3c24e48538ffb8650a6f395ff9f.exe Destination IP 2 223.5.5.5 1456 5a8e47fae4d5fc3eb2691d40a8f7f4c7c836b3c24e48538ffb8650a6f395ff9f.exe - Drops file in System32 directory 17 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 8d7d45c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 8d7d45c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 8d7d45c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 8d7d45c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 8d7d45c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 8d7d45c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C 8d7d45c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C 8d7d45c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 8d7d45c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 8d7d45c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 8d7d45c File created C:\Windows\SysWOW64\8d7d45c 5a8e47fae4d5fc3eb2691d40a8f7f4c7c836b3c24e48538ffb8650a6f395ff9f.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 8d7d45c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 8d7d45c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 8d7d45c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 8d7d45c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 8d7d45c -
resource yara_rule behavioral2/memory/1456-0-0x0000000000780000-0x000000000080C000-memory.dmp upx behavioral2/files/0x001d00000002b160-2.dat upx behavioral2/memory/4508-3-0x0000000000590000-0x000000000061C000-memory.dmp upx behavioral2/memory/1456-15-0x0000000000780000-0x000000000080C000-memory.dmp upx behavioral2/memory/4508-16-0x0000000000590000-0x000000000061C000-memory.dmp upx behavioral2/memory/4508-33-0x0000000000590000-0x000000000061C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\4d2db8 8d7d45c File opened for modification C:\Windows\18ed60 5a8e47fae4d5fc3eb2691d40a8f7f4c7c836b3c24e48538ffb8650a6f395ff9f.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 5a8e47fae4d5fc3eb2691d40a8f7f4c7c836b3c24e48538ffb8650a6f395ff9f.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 8d7d45c - 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 8d7d45c Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 8d7d45c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 8d7d45c Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 8d7d45c Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 8d7d45c Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 8d7d45c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 8d7d45c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 8d7d45c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 8d7d45c - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4508 8d7d45c 4508 8d7d45c 4508 8d7d45c 4508 8d7d45c 4508 8d7d45c 4508 8d7d45c 4508 8d7d45c 4508 8d7d45c 1456 5a8e47fae4d5fc3eb2691d40a8f7f4c7c836b3c24e48538ffb8650a6f395ff9f.exe 1456 5a8e47fae4d5fc3eb2691d40a8f7f4c7c836b3c24e48538ffb8650a6f395ff9f.exe 1456 5a8e47fae4d5fc3eb2691d40a8f7f4c7c836b3c24e48538ffb8650a6f395ff9f.exe 1456 5a8e47fae4d5fc3eb2691d40a8f7f4c7c836b3c24e48538ffb8650a6f395ff9f.exe 1456 5a8e47fae4d5fc3eb2691d40a8f7f4c7c836b3c24e48538ffb8650a6f395ff9f.exe 1456 5a8e47fae4d5fc3eb2691d40a8f7f4c7c836b3c24e48538ffb8650a6f395ff9f.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1456 5a8e47fae4d5fc3eb2691d40a8f7f4c7c836b3c24e48538ffb8650a6f395ff9f.exe Token: SeTcbPrivilege 1456 5a8e47fae4d5fc3eb2691d40a8f7f4c7c836b3c24e48538ffb8650a6f395ff9f.exe Token: SeDebugPrivilege 4508 8d7d45c Token: SeTcbPrivilege 4508 8d7d45c
Processes
-
C:\Users\Admin\AppData\Local\Temp\5a8e47fae4d5fc3eb2691d40a8f7f4c7c836b3c24e48538ffb8650a6f395ff9f.exe"C:\Users\Admin\AppData\Local\Temp\5a8e47fae4d5fc3eb2691d40a8f7f4c7c836b3c24e48538ffb8650a6f395ff9f.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:1456
-
C:\Windows\Syswow64\8d7d45cC:\Windows\Syswow64\8d7d45c1⤵
- 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:4508
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\8d7d45c
- Size 830KB
- SHA256 40d4c550a446dbb20a77d8b3b62ea091105b2c3d657097e796d8ba37e8985118
- MD5 46ed4b84778dbafd2f3ce5caeb272cba
- SHA1 654475ae8d2c0214e26c4da52633c10038965c99
- SHA512 f1f7d8e4615d1437962554fb990b87fefeb89121f46dc08ead3a4676886b083d9b16c5ab0ce73c361478c07fb8a8533bbc5f29d6e165604138b29e1321ce06b3
- SSDEEP 12288:pSvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/Lik8CQ3K:QvO2xJKRw2kOkx2LFRvcUQPK
- TLSH T142055A31E641C03AD0A74575C6FA4BBFE964BD25131165CBA3C43A262FB36D2BA3170E
- MD5 SHA1 SHA512 SSDEEP TLSH