Analysis
- max time kernel
149s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
04/05/2026, 19:01
Behavioral task
behavioral1
Sample
b4b09471e51e60541790deb9b42b4a993674f863f7aaea756a658215813af132.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target b4b09471e51e60541790deb9b42b4a993674f863f7aaea756a658215813af132.exe
- Size 761KB
- Sample260504-xpharsft4j
- SHA256 b4b09471e51e60541790deb9b42b4a993674f863f7aaea756a658215813af132
- MD5 e2c8a11cbdcd00cd314ff3824064c4f0
- SHA1 b8a8594e549e9bb9dfe32a4c253a6eb3687eea39
- SHA512 6eea5b65baa3c83b477d730b1b6528989f68de642253c7358b7ebe48be0896aea915db2f5cc695620dada2c5675a4eef853e04a5fe701adc9497817b21578107
- SSDEEP 12288:QSvO2x9mONvKRwLSFtsOkxHya5hYIW0p98B:LvO2xJKRw2kOkxSkW298B
- TLSH T1B4F49E35A2808036C0B34532C6F94AABF9797D35631565CBA3843B662F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4700 d5caf5a9 - 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 4724 b4b09471e51e60541790deb9b42b4a993674f863f7aaea756a658215813af132.exe Destination IP 6 223.5.5.5 4724 b4b09471e51e60541790deb9b42b4a993674f863f7aaea756a658215813af132.exe Destination IP 25 114.114.114.114 4724 b4b09471e51e60541790deb9b42b4a993674f863f7aaea756a658215813af132.exe Destination IP 27 223.5.5.5 4724 b4b09471e51e60541790deb9b42b4a993674f863f7aaea756a658215813af132.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 d5caf5a9 File created C:\Windows\SysWOW64\d5caf5a9 b4b09471e51e60541790deb9b42b4a993674f863f7aaea756a658215813af132.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 d5caf5a9 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 d5caf5a9 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache d5caf5a9 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\AAD646CB44373074ADE741C38400E7E1 d5caf5a9 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C d5caf5a9 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C d5caf5a9 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 d5caf5a9 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE d5caf5a9 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft d5caf5a9 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData d5caf5a9 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\AAD646CB44373074ADE741C38400E7E1 d5caf5a9 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 d5caf5a9 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies d5caf5a9 -
resource yara_rule behavioral1/memory/4724-0-0x0000000000F30000-0x0000000000FBC000-memory.dmp upx behavioral1/files/0x000a000000021655-2.dat upx behavioral1/memory/4700-4-0x0000000000990000-0x0000000000A1C000-memory.dmp upx behavioral1/memory/4724-10-0x0000000000F30000-0x0000000000FBC000-memory.dmp upx behavioral1/memory/4700-11-0x0000000000990000-0x0000000000A1C000-memory.dmp upx behavioral1/memory/4700-29-0x0000000000990000-0x0000000000A1C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\507738 d5caf5a9 File opened for modification C:\Windows\50e068 b4b09471e51e60541790deb9b42b4a993674f863f7aaea756a658215813af132.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 b4b09471e51e60541790deb9b42b4a993674f863f7aaea756a658215813af132.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language d5caf5a9 - 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 d5caf5a9 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" d5caf5a9 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" d5caf5a9 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ d5caf5a9 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" d5caf5a9 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" d5caf5a9 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" d5caf5a9 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" d5caf5a9 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing d5caf5a9 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4700 d5caf5a9 4700 d5caf5a9 4700 d5caf5a9 4700 d5caf5a9 4700 d5caf5a9 4700 d5caf5a9 4700 d5caf5a9 4700 d5caf5a9 4724 b4b09471e51e60541790deb9b42b4a993674f863f7aaea756a658215813af132.exe 4724 b4b09471e51e60541790deb9b42b4a993674f863f7aaea756a658215813af132.exe 4724 b4b09471e51e60541790deb9b42b4a993674f863f7aaea756a658215813af132.exe 4724 b4b09471e51e60541790deb9b42b4a993674f863f7aaea756a658215813af132.exe 4724 b4b09471e51e60541790deb9b42b4a993674f863f7aaea756a658215813af132.exe 4724 b4b09471e51e60541790deb9b42b4a993674f863f7aaea756a658215813af132.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4724 b4b09471e51e60541790deb9b42b4a993674f863f7aaea756a658215813af132.exe Token: SeTcbPrivilege 4724 b4b09471e51e60541790deb9b42b4a993674f863f7aaea756a658215813af132.exe Token: SeDebugPrivilege 4700 d5caf5a9 Token: SeTcbPrivilege 4700 d5caf5a9
Processes
-
C:\Users\Admin\AppData\Local\Temp\b4b09471e51e60541790deb9b42b4a993674f863f7aaea756a658215813af132.exe"C:\Users\Admin\AppData\Local\Temp\b4b09471e51e60541790deb9b42b4a993674f863f7aaea756a658215813af132.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:4724
-
C:\Windows\Syswow64\d5caf5a9C:\Windows\Syswow64\d5caf5a91⤵
- 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:4700
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Windows\SysWOW64\d5caf5a9
- Size 761KB
- SHA256 74701514bdac7f112cd10181172291d53d231a9bfe69618ad34d81f2b7b0ff7b
- MD5 9eeb32fb364754bc4a5976b287e54261
- SHA1 12ebbeeceda4aff758010733e4728a94cb29fdb8
- SHA512 86879ab30efcf164a3541b40b976dfb4e0ec493705ff3f4a4d3278d3d6237929b117cc77f4f24aa47263c75273a46ed6d878eb1fafc693bc3d5e5106e1e72c56
- SSDEEP 12288:ISvO2x9mONvKRwLSFtsOkxHya5hYIW0p98B:DvO2xJKRw2kOkxSkW298B
- TLSH T182F49E35A2808036C0B34532C6F94AABF9797D35631565CBA3843B662F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH