Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
07/05/2026, 19:50
Behavioral task
behavioral1
Sample
bb2ac229504ad5ee90e1e58030ba12c115fe1d72db416c484f935aa951f41590.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target bb2ac229504ad5ee90e1e58030ba12c115fe1d72db416c484f935aa951f41590.exe
- Size 640KB
- Sample260507-ykhamsdw2n
- SHA256 bb2ac229504ad5ee90e1e58030ba12c115fe1d72db416c484f935aa951f41590
- MD5 0b9dc34303782a3b7a94a8ce33e9660c
- SHA1 aff0c52d342bd6794453657ec1ec34409127623a
- SHA512 2cd00fa8197e8cf907aba7ce81df60a056eb6f76c2f4580a84196dc8d951ccb866cd792c8ddfd953a30f4f5827320ee227abf8890a83073ab6d8f09b212e3216
- SSDEEP 6144:ccTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRuy8KU5Rc:cSvO2x9mONvKRwLSFtsOkxHya5+
- TLSH T1CED45B35A6808036C0B74631C6F64BAAF9B5BC25631195CFA384376A1F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 2532 8c7bfb8e - 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 23 114.114.114.114 4116 bb2ac229504ad5ee90e1e58030ba12c115fe1d72db416c484f935aa951f41590.exe Destination IP 24 223.5.5.5 4116 bb2ac229504ad5ee90e1e58030ba12c115fe1d72db416c484f935aa951f41590.exe Destination IP 5 114.114.114.114 4116 bb2ac229504ad5ee90e1e58030ba12c115fe1d72db416c484f935aa951f41590.exe Destination IP 6 223.5.5.5 4116 bb2ac229504ad5ee90e1e58030ba12c115fe1d72db416c484f935aa951f41590.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 8c7bfb8e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 8c7bfb8e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 8c7bfb8e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 8c7bfb8e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 8c7bfb8e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 8c7bfb8e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 8c7bfb8e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 8c7bfb8e File created C:\Windows\SysWOW64\8c7bfb8e bb2ac229504ad5ee90e1e58030ba12c115fe1d72db416c484f935aa951f41590.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 8c7bfb8e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 8c7bfb8e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 8c7bfb8e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 8c7bfb8e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 8c7bfb8e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 8c7bfb8e -
resource yara_rule behavioral1/memory/4116-0-0x0000000000B40000-0x0000000000BCC000-memory.dmp upx behavioral1/files/0x000e0000000241e1-2.dat upx behavioral1/memory/2532-4-0x0000000000400000-0x000000000048C000-memory.dmp upx behavioral1/memory/4116-10-0x0000000000B40000-0x0000000000BCC000-memory.dmp upx behavioral1/memory/2532-11-0x0000000000400000-0x000000000048C000-memory.dmp upx behavioral1/memory/2532-32-0x0000000000400000-0x000000000048C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\4677a8 bb2ac229504ad5ee90e1e58030ba12c115fe1d72db416c484f935aa951f41590.exe File opened for modification C:\Windows\2b5948 8c7bfb8e - 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 bb2ac229504ad5ee90e1e58030ba12c115fe1d72db416c484f935aa951f41590.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 8c7bfb8e - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 8c7bfb8e Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 8c7bfb8e Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 8c7bfb8e Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 8c7bfb8e Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 8c7bfb8e Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 8c7bfb8e Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 8c7bfb8e Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 8c7bfb8e Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 8c7bfb8e - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 2532 8c7bfb8e 2532 8c7bfb8e 2532 8c7bfb8e 2532 8c7bfb8e 2532 8c7bfb8e 2532 8c7bfb8e 2532 8c7bfb8e 2532 8c7bfb8e 4116 bb2ac229504ad5ee90e1e58030ba12c115fe1d72db416c484f935aa951f41590.exe 4116 bb2ac229504ad5ee90e1e58030ba12c115fe1d72db416c484f935aa951f41590.exe 4116 bb2ac229504ad5ee90e1e58030ba12c115fe1d72db416c484f935aa951f41590.exe 4116 bb2ac229504ad5ee90e1e58030ba12c115fe1d72db416c484f935aa951f41590.exe 4116 bb2ac229504ad5ee90e1e58030ba12c115fe1d72db416c484f935aa951f41590.exe 4116 bb2ac229504ad5ee90e1e58030ba12c115fe1d72db416c484f935aa951f41590.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4116 bb2ac229504ad5ee90e1e58030ba12c115fe1d72db416c484f935aa951f41590.exe Token: SeTcbPrivilege 4116 bb2ac229504ad5ee90e1e58030ba12c115fe1d72db416c484f935aa951f41590.exe Token: SeDebugPrivilege 2532 8c7bfb8e Token: SeTcbPrivilege 2532 8c7bfb8e
Processes
-
C:\Users\Admin\AppData\Local\Temp\bb2ac229504ad5ee90e1e58030ba12c115fe1d72db416c484f935aa951f41590.exe"C:\Users\Admin\AppData\Local\Temp\bb2ac229504ad5ee90e1e58030ba12c115fe1d72db416c484f935aa951f41590.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:4116
-
C:\Windows\Syswow64\8c7bfb8eC:\Windows\Syswow64\8c7bfb8e1⤵
- 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:2532
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\8c7bfb8e
- Size 640KB
- SHA256 4304a760bf51116b224b30219e30ed9734e0fbfed10a6c8e710e6a2c9a3dc309
- MD5 2b6332c89513ace7cc79819c476f3bea
- SHA1 7f399d36eb0b8efecaf7c4a690bc0eaddf2162ba
- SHA512 dacac391522d13b2680ef8e834e4dd5ea8014f6e8a8fbcc5b9943356b3bbdd6e4a736429fd7f293bc9a6d9953617169da0a113b4e87c8aacbc26e0ae6b27651c
- SSDEEP 6144:McTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRuy8KU5Rc:MSvO2x9mONvKRwLSFtsOkxHya5+
- TLSH T1ACD45B35A6808036C0B74631C6F64BAAF9B5BC25631195CFA384376A1F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH