Analysis
- max time kernel
148s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
06/08/2026, 20:10
Behavioral task
behavioral1
Sample
a57417618956fd37eab06f47c4df63515a75fb550db6817a3f69039a1634dbd9.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target a57417618956fd37eab06f47c4df63515a75fb550db6817a3f69039a1634dbd9.exe
- Size 560KB
- Sample260806-yxtjfatscs
- SHA256 a57417618956fd37eab06f47c4df63515a75fb550db6817a3f69039a1634dbd9
- MD5 31b00653e1b2b5491212f85df7d43b3c
- SHA1 bf8981bf0d782ca52b26bb5547fe95bc27bfaba9
- SHA512 fd0f2f832584378aca90dec9f472acdd0518af030e7bfbf9f878e193a3650026ca7a5959a41f8c98b5c55096174e76f783448c445e7b4c68a714489ab0b63192
- SSDEEP 6144:tWVrC1c2oonALgPLj7vf1LKlyIFVirGcEOkCybEaQRXr9HNdvOa+y8K:tkCO2zVPX7vf1LKlIsOkx2LIa+y
- TLSH T1FFC47C2AF6A0C036C4779574C4A257AAFFB1B42127204ACFA390475A1F637E2BE7531D
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4748 37c4c46a - 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 3 114.114.114.114 552 a57417618956fd37eab06f47c4df63515a75fb550db6817a3f69039a1634dbd9.exe Destination IP 5 223.5.5.5 552 a57417618956fd37eab06f47c4df63515a75fb550db6817a3f69039a1634dbd9.exe Destination IP 16 114.114.114.114 552 a57417618956fd37eab06f47c4df63515a75fb550db6817a3f69039a1634dbd9.exe Destination IP 17 223.5.5.5 552 a57417618956fd37eab06f47c4df63515a75fb550db6817a3f69039a1634dbd9.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 37c4c46a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 37c4c46a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 37c4c46a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 37c4c46a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 37c4c46a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 37c4c46a File created C:\Windows\SysWOW64\37c4c46a a57417618956fd37eab06f47c4df63515a75fb550db6817a3f69039a1634dbd9.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 37c4c46a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 37c4c46a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 37c4c46a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 37c4c46a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 37c4c46a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 37c4c46a -
resource yara_rule behavioral2/memory/552-0-0x0000000000EE0000-0x0000000000F6C000-memory.dmp upx behavioral2/files/0x000f000000016cdf-2.dat upx behavioral2/memory/4748-3-0x00000000008C0000-0x000000000094C000-memory.dmp upx behavioral2/memory/552-10-0x0000000000EE0000-0x0000000000F6C000-memory.dmp upx behavioral2/memory/4748-11-0x00000000008C0000-0x000000000094C000-memory.dmp upx behavioral2/memory/4748-26-0x00000000008C0000-0x000000000094C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\514998 37c4c46a File opened for modification C:\Windows\97350 a57417618956fd37eab06f47c4df63515a75fb550db6817a3f69039a1634dbd9.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 a57417618956fd37eab06f47c4df63515a75fb550db6817a3f69039a1634dbd9.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 37c4c46a - 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\History\CachePrefix = "Visited:" 37c4c46a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 37c4c46a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 37c4c46a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 37c4c46a Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 37c4c46a Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 37c4c46a Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 37c4c46a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 37c4c46a Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 37c4c46a - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 4748 37c4c46a 4748 37c4c46a 4748 37c4c46a 4748 37c4c46a 4748 37c4c46a 4748 37c4c46a 4748 37c4c46a 4748 37c4c46a 552 a57417618956fd37eab06f47c4df63515a75fb550db6817a3f69039a1634dbd9.exe 552 a57417618956fd37eab06f47c4df63515a75fb550db6817a3f69039a1634dbd9.exe 552 a57417618956fd37eab06f47c4df63515a75fb550db6817a3f69039a1634dbd9.exe 552 a57417618956fd37eab06f47c4df63515a75fb550db6817a3f69039a1634dbd9.exe 552 a57417618956fd37eab06f47c4df63515a75fb550db6817a3f69039a1634dbd9.exe 552 a57417618956fd37eab06f47c4df63515a75fb550db6817a3f69039a1634dbd9.exe 552 a57417618956fd37eab06f47c4df63515a75fb550db6817a3f69039a1634dbd9.exe 552 a57417618956fd37eab06f47c4df63515a75fb550db6817a3f69039a1634dbd9.exe 552 a57417618956fd37eab06f47c4df63515a75fb550db6817a3f69039a1634dbd9.exe 552 a57417618956fd37eab06f47c4df63515a75fb550db6817a3f69039a1634dbd9.exe 552 a57417618956fd37eab06f47c4df63515a75fb550db6817a3f69039a1634dbd9.exe 552 a57417618956fd37eab06f47c4df63515a75fb550db6817a3f69039a1634dbd9.exe 552 a57417618956fd37eab06f47c4df63515a75fb550db6817a3f69039a1634dbd9.exe 552 a57417618956fd37eab06f47c4df63515a75fb550db6817a3f69039a1634dbd9.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 552 a57417618956fd37eab06f47c4df63515a75fb550db6817a3f69039a1634dbd9.exe Token: SeTcbPrivilege 552 a57417618956fd37eab06f47c4df63515a75fb550db6817a3f69039a1634dbd9.exe Token: SeDebugPrivilege 4748 37c4c46a Token: SeTcbPrivilege 4748 37c4c46a
Processes
-
C:\Users\Admin\AppData\Local\Temp\a57417618956fd37eab06f47c4df63515a75fb550db6817a3f69039a1634dbd9.exe"C:\Users\Admin\AppData\Local\Temp\a57417618956fd37eab06f47c4df63515a75fb550db6817a3f69039a1634dbd9.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:552
-
C:\Windows\Syswow64\37c4c46aC:\Windows\Syswow64\37c4c46a1⤵
- 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:4748
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\37c4c46a
- Size 560KB
- SHA256 6d88f23c4393a994dcf590c33eafca7a4ecb1567cdd10cc02dac7e2bdbf2e290
- MD5 d79f94d1da45e31a03cd96b43b6dbd57
- SHA1 8af172237b7a70a16a8d393db718d5f585e46955
- SHA512 f9f90d29988a68f9eac9d7ef873bb0d90369ee5bd19d93896a17900205adb29dcad5b8c87db9c9a4870c63a81f9451f7876c3c490de37f281f13a35af7ffdbce
- SSDEEP 6144:mWVrC1c2oonALgPLj7vf1LKlyIFVirGcEOkCybEaQRXr9HNdvOa+y8K:mkCO2zVPX7vf1LKlIsOkx2LIa+y
- TLSH T15DC47C2AF6A0C036C4779574C4A257AAFFB1B42127204ACFA390475A1F637E2BE7531D
- MD5 SHA1 SHA512 SSDEEP TLSH