Analysis
- max time kernel
149s - 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
10/07/2026, 15:52
Behavioral task
behavioral1
Sample
d5f87538331da8d7ce6a1d5242f72f93dfd7e68ca6761ed2792ebb8a258911b5.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target d5f87538331da8d7ce6a1d5242f72f93dfd7e68ca6761ed2792ebb8a258911b5.exe
- Size 576KB
- Sample260710-tbh4cscv2q
- SHA256 d5f87538331da8d7ce6a1d5242f72f93dfd7e68ca6761ed2792ebb8a258911b5
- MD5 5e5771532733b09658529d1da315f5af
- SHA1 33d2e989cd7d343fc3355e67db151830d3096b8c
- SHA512 33ecfe8ebe188ad71ab61b78758e0bfeced05fb175c695462a582012d950f86636bf1bc70585ddbdefe513cef920396df0856cea6d4bb03450fb79d1d94fd5c7
- SSDEEP 6144:icTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8K/:iSvO2x9mONvKRwLSFtsOkx2LIa+yx
- TLSH T188C46D26B6908072C4779578C4A257AAFBB1BC2127204ACFA390775A1F737D2BE3570D
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4240 a26b7a47 - Unexpected DNS network traffic destination 6 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 2 223.5.5.5 4752 d5f87538331da8d7ce6a1d5242f72f93dfd7e68ca6761ed2792ebb8a258911b5.exe Destination IP 21 114.114.114.114 4752 d5f87538331da8d7ce6a1d5242f72f93dfd7e68ca6761ed2792ebb8a258911b5.exe Destination IP 22 223.5.5.5 4752 d5f87538331da8d7ce6a1d5242f72f93dfd7e68ca6761ed2792ebb8a258911b5.exe Destination IP 61 114.114.114.114 4752 d5f87538331da8d7ce6a1d5242f72f93dfd7e68ca6761ed2792ebb8a258911b5.exe Destination IP 62 223.5.5.5 4752 d5f87538331da8d7ce6a1d5242f72f93dfd7e68ca6761ed2792ebb8a258911b5.exe Destination IP 1 114.114.114.114 4752 d5f87538331da8d7ce6a1d5242f72f93dfd7e68ca6761ed2792ebb8a258911b5.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData a26b7a47 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 a26b7a47 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 a26b7a47 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 a26b7a47 File created C:\Windows\SysWOW64\a26b7a47 d5f87538331da8d7ce6a1d5242f72f93dfd7e68ca6761ed2792ebb8a258911b5.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies a26b7a47 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft a26b7a47 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache a26b7a47 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content a26b7a47 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 a26b7a47 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 a26b7a47 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE a26b7a47 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 a26b7a47 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 a26b7a47 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 a26b7a47 -
resource yara_rule behavioral2/memory/4752-0-0x0000000000AD0000-0x0000000000B5C000-memory.dmp upx behavioral2/files/0x0011000000019a98-2.dat upx behavioral2/memory/4240-4-0x0000000000870000-0x00000000008FC000-memory.dmp upx behavioral2/memory/4752-18-0x0000000000AD0000-0x0000000000B5C000-memory.dmp upx behavioral2/memory/4240-19-0x0000000000870000-0x00000000008FC000-memory.dmp upx behavioral2/memory/4240-34-0x0000000000870000-0x00000000008FC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\489720 a26b7a47 File opened for modification C:\Windows\515b20 d5f87538331da8d7ce6a1d5242f72f93dfd7e68ca6761ed2792ebb8a258911b5.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 d5f87538331da8d7ce6a1d5242f72f93dfd7e68ca6761ed2792ebb8a258911b5.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a26b7a47 - 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\Cookies\CachePrefix = "Cookie:" a26b7a47 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" a26b7a47 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ a26b7a47 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" a26b7a47 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" a26b7a47 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing a26b7a47 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" a26b7a47 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" a26b7a47 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix a26b7a47 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 4240 a26b7a47 4240 a26b7a47 4240 a26b7a47 4240 a26b7a47 4240 a26b7a47 4240 a26b7a47 4240 a26b7a47 4240 a26b7a47 4752 d5f87538331da8d7ce6a1d5242f72f93dfd7e68ca6761ed2792ebb8a258911b5.exe 4752 d5f87538331da8d7ce6a1d5242f72f93dfd7e68ca6761ed2792ebb8a258911b5.exe 4752 d5f87538331da8d7ce6a1d5242f72f93dfd7e68ca6761ed2792ebb8a258911b5.exe 4752 d5f87538331da8d7ce6a1d5242f72f93dfd7e68ca6761ed2792ebb8a258911b5.exe 4752 d5f87538331da8d7ce6a1d5242f72f93dfd7e68ca6761ed2792ebb8a258911b5.exe 4752 d5f87538331da8d7ce6a1d5242f72f93dfd7e68ca6761ed2792ebb8a258911b5.exe 4752 d5f87538331da8d7ce6a1d5242f72f93dfd7e68ca6761ed2792ebb8a258911b5.exe 4752 d5f87538331da8d7ce6a1d5242f72f93dfd7e68ca6761ed2792ebb8a258911b5.exe 4752 d5f87538331da8d7ce6a1d5242f72f93dfd7e68ca6761ed2792ebb8a258911b5.exe 4752 d5f87538331da8d7ce6a1d5242f72f93dfd7e68ca6761ed2792ebb8a258911b5.exe 4752 d5f87538331da8d7ce6a1d5242f72f93dfd7e68ca6761ed2792ebb8a258911b5.exe 4752 d5f87538331da8d7ce6a1d5242f72f93dfd7e68ca6761ed2792ebb8a258911b5.exe 4752 d5f87538331da8d7ce6a1d5242f72f93dfd7e68ca6761ed2792ebb8a258911b5.exe 4752 d5f87538331da8d7ce6a1d5242f72f93dfd7e68ca6761ed2792ebb8a258911b5.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4752 d5f87538331da8d7ce6a1d5242f72f93dfd7e68ca6761ed2792ebb8a258911b5.exe Token: SeTcbPrivilege 4752 d5f87538331da8d7ce6a1d5242f72f93dfd7e68ca6761ed2792ebb8a258911b5.exe Token: SeDebugPrivilege 4240 a26b7a47 Token: SeTcbPrivilege 4240 a26b7a47
Processes
-
C:\Users\Admin\AppData\Local\Temp\d5f87538331da8d7ce6a1d5242f72f93dfd7e68ca6761ed2792ebb8a258911b5.exe"C:\Users\Admin\AppData\Local\Temp\d5f87538331da8d7ce6a1d5242f72f93dfd7e68ca6761ed2792ebb8a258911b5.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:4752
-
C:\Windows\Syswow64\a26b7a47C:\Windows\Syswow64\a26b7a471⤵
- 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:4240
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\a26b7a47
- Size 576KB
- SHA256 0e494d4af604056a0d4257605ab0a1898ba36a9f621f8b5612fc489bd5bed8d1
- MD5 673ec0137268b5381f496a4002180c79
- SHA1 68ca8451e75c19350ba3dcce195e6652c7123b2a
- SHA512 12402fb89d359c19a50dc234218f7556000725c82b2c1808c6fd76a45c4e5b61448c5949ee99dd8fcb91fc85c60c18c261d335a231467d11180084f8dba27657
- SSDEEP 6144:AcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8K/:ASvO2x9mONvKRwLSFtsOkx2LIa+yx
- TLSH T1B8C46D26B6908072C4779578C4A257AAFBB1BC2127204ACFA390775A1F737D2BE3570D
- MD5 SHA1 SHA512 SSDEEP TLSH