Analysis
- max time kernel
150s - 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
02/08/2026, 04:57
Behavioral task
behavioral1
Sample
b4956f38e48f4d5ecd1b10853199ab6783b7b92c366b5eebf1965a4f4ac53c45.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target b4956f38e48f4d5ecd1b10853199ab6783b7b92c366b5eebf1965a4f4ac53c45.exe
- Size 560KB
- Sample260802-fla9lsvdrh
- SHA256 b4956f38e48f4d5ecd1b10853199ab6783b7b92c366b5eebf1965a4f4ac53c45
- MD5 b626e2ebe0ea7ad4c49f0c368594eb3a
- SHA1 28191e62034d859d8edcae7809093bf7a2938632
- SHA512 f9f5fdfc167c467b0029513fcc5d67ef39f0b9cade1257aac904a59c509457143db0a2a9b06f2958163f6a370e25dd19da25990ef8359c6c0bf8706d605ecf63
- SSDEEP 6144:KWVrC1c2oonALgPLj7vf1LKlyIFVirGcEOkCybEaQRXr9HNdvOa+y8K:KkCO2zVPX7vf1LKlIsOkx2LIa+y
- TLSH T121C47C2AF6A0C036C4779574C4A257AAFFB1B42127204ACFA390475A1F637E2BE7531D
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4500 b5b097f2 - 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 2 223.5.5.5 2796 b4956f38e48f4d5ecd1b10853199ab6783b7b92c366b5eebf1965a4f4ac53c45.exe Destination IP 13 114.114.114.114 2796 b4956f38e48f4d5ecd1b10853199ab6783b7b92c366b5eebf1965a4f4ac53c45.exe Destination IP 14 223.5.5.5 2796 b4956f38e48f4d5ecd1b10853199ab6783b7b92c366b5eebf1965a4f4ac53c45.exe Destination IP 1 114.114.114.114 2796 b4956f38e48f4d5ecd1b10853199ab6783b7b92c366b5eebf1965a4f4ac53c45.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\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 b5b097f2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft b5b097f2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content b5b097f2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 b5b097f2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 b5b097f2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 b5b097f2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 b5b097f2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE b5b097f2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 b5b097f2 File created C:\Windows\SysWOW64\b5b097f2 b4956f38e48f4d5ecd1b10853199ab6783b7b92c366b5eebf1965a4f4ac53c45.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies b5b097f2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache b5b097f2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData b5b097f2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 b5b097f2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 b5b097f2 -
resource yara_rule behavioral2/memory/2796-0-0x0000000000010000-0x000000000009C000-memory.dmp upx behavioral2/files/0x000d00000001c5a1-2.dat upx behavioral2/memory/4500-3-0x0000000000D10000-0x0000000000D9C000-memory.dmp upx behavioral2/memory/2796-18-0x0000000000010000-0x000000000009C000-memory.dmp upx behavioral2/memory/4500-19-0x0000000000D10000-0x0000000000D9C000-memory.dmp upx behavioral2/memory/4500-28-0x0000000000D10000-0x0000000000D9C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\2fde58 b4956f38e48f4d5ecd1b10853199ab6783b7b92c366b5eebf1965a4f4ac53c45.exe File opened for modification C:\Windows\4d0aa8 b5b097f2 - 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 b4956f38e48f4d5ecd1b10853199ab6783b7b92c366b5eebf1965a4f4ac53c45.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b5b097f2 - 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 b5b097f2 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ b5b097f2 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" b5b097f2 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" b5b097f2 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" b5b097f2 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" b5b097f2 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" b5b097f2 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" b5b097f2 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing b5b097f2 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 4500 b5b097f2 4500 b5b097f2 4500 b5b097f2 4500 b5b097f2 4500 b5b097f2 4500 b5b097f2 4500 b5b097f2 4500 b5b097f2 2796 b4956f38e48f4d5ecd1b10853199ab6783b7b92c366b5eebf1965a4f4ac53c45.exe 2796 b4956f38e48f4d5ecd1b10853199ab6783b7b92c366b5eebf1965a4f4ac53c45.exe 2796 b4956f38e48f4d5ecd1b10853199ab6783b7b92c366b5eebf1965a4f4ac53c45.exe 2796 b4956f38e48f4d5ecd1b10853199ab6783b7b92c366b5eebf1965a4f4ac53c45.exe 2796 b4956f38e48f4d5ecd1b10853199ab6783b7b92c366b5eebf1965a4f4ac53c45.exe 2796 b4956f38e48f4d5ecd1b10853199ab6783b7b92c366b5eebf1965a4f4ac53c45.exe 2796 b4956f38e48f4d5ecd1b10853199ab6783b7b92c366b5eebf1965a4f4ac53c45.exe 2796 b4956f38e48f4d5ecd1b10853199ab6783b7b92c366b5eebf1965a4f4ac53c45.exe 2796 b4956f38e48f4d5ecd1b10853199ab6783b7b92c366b5eebf1965a4f4ac53c45.exe 2796 b4956f38e48f4d5ecd1b10853199ab6783b7b92c366b5eebf1965a4f4ac53c45.exe 2796 b4956f38e48f4d5ecd1b10853199ab6783b7b92c366b5eebf1965a4f4ac53c45.exe 2796 b4956f38e48f4d5ecd1b10853199ab6783b7b92c366b5eebf1965a4f4ac53c45.exe 2796 b4956f38e48f4d5ecd1b10853199ab6783b7b92c366b5eebf1965a4f4ac53c45.exe 2796 b4956f38e48f4d5ecd1b10853199ab6783b7b92c366b5eebf1965a4f4ac53c45.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2796 b4956f38e48f4d5ecd1b10853199ab6783b7b92c366b5eebf1965a4f4ac53c45.exe Token: SeTcbPrivilege 2796 b4956f38e48f4d5ecd1b10853199ab6783b7b92c366b5eebf1965a4f4ac53c45.exe Token: SeDebugPrivilege 4500 b5b097f2 Token: SeTcbPrivilege 4500 b5b097f2
Processes
-
C:\Users\Admin\AppData\Local\Temp\b4956f38e48f4d5ecd1b10853199ab6783b7b92c366b5eebf1965a4f4ac53c45.exe"C:\Users\Admin\AppData\Local\Temp\b4956f38e48f4d5ecd1b10853199ab6783b7b92c366b5eebf1965a4f4ac53c45.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:2796
-
C:\Windows\Syswow64\b5b097f2C:\Windows\Syswow64\b5b097f21⤵
- 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:4500
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵PID:4092
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\b5b097f2
- Size 560KB
- SHA256 99a922e11a1ac184af4ddedf43acba92ff9e8b116a8c35c8875137fa5fb9118c
- MD5 3d9fa26455b5e1f16ae0b2c4a5cda4d0
- SHA1 86a5435264cd9ef99bdfb01a91ebf246d98233f7
- SHA512 9f737c8707321fb862e6cb1bc096a1514e0ac00378446d951e6a913ed8eb4a0b35ef338bdddb7c1a34551acb7538891b74f283b85d5bbf104ec0d85c67b83f2d
- SSDEEP 6144:XWVrC1c2oonALgPLj7vf1LKlyIFVirGcEOkCybEaQRXr9HNdvOa+y8K:XkCO2zVPX7vf1LKlIsOkx2LIa+y
- TLSH T1EAC47C2AF6A0C036C4779574C4A257AAFFB1B42127204ACFA390475A1F637E2BE7531D
- MD5 SHA1 SHA512 SSDEEP TLSH