Analysis
- max time kernel
150s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
23/04/2026, 18:44
Behavioral task
behavioral1
Sample
27fe0f185f0f0ef2073f7dc3e112b1117afee639dc891ee68c57c34e80ab266e.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target 27fe0f185f0f0ef2073f7dc3e112b1117afee639dc891ee68c57c34e80ab266e.exe
- Size 761KB
- Sample260423-xdz2faew5j
- SHA256 27fe0f185f0f0ef2073f7dc3e112b1117afee639dc891ee68c57c34e80ab266e
- MD5 efcb021bf218e56b30a58ee0476d37ba
- SHA1 5aa45c5d9f4fffd4f7db7de012f35284c0e5c958
- SHA512 07e8934354adb8340ceed8f51d433203b1a1e8e6940b25bbc96cbad01c5fff885084e5f57ba7ab66aaebcc0793cc3ad77e65d8037443141e284af4521f10607b
- SSDEEP 12288:TSvO2x9mONvKRwLSFtsOkxHya5hYIW0p98B:mvO2xJKRw2kOkxSkW298B
- TLSH T162F49E35A2808036C0B34532C6F94AABF9797D35631565CBA3843B662F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 1912 8bd3afcc - 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 38 223.5.5.5 2260 27fe0f185f0f0ef2073f7dc3e112b1117afee639dc891ee68c57c34e80ab266e.exe Destination IP 3 114.114.114.114 2260 27fe0f185f0f0ef2073f7dc3e112b1117afee639dc891ee68c57c34e80ab266e.exe Destination IP 4 223.5.5.5 2260 27fe0f185f0f0ef2073f7dc3e112b1117afee639dc891ee68c57c34e80ab266e.exe Destination IP 36 114.114.114.114 2260 27fe0f185f0f0ef2073f7dc3e112b1117afee639dc891ee68c57c34e80ab266e.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 8bd3afcc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 8bd3afcc File created C:\Windows\SysWOW64\8bd3afcc 27fe0f185f0f0ef2073f7dc3e112b1117afee639dc891ee68c57c34e80ab266e.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 8bd3afcc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 8bd3afcc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 8bd3afcc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 8bd3afcc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 8bd3afcc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\AAD646CB44373074ADE741C38400E7E1 8bd3afcc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 8bd3afcc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 8bd3afcc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\AAD646CB44373074ADE741C38400E7E1 8bd3afcc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 8bd3afcc -
resource yara_rule behavioral1/memory/2260-0-0x0000000000E90000-0x0000000000F1C000-memory.dmp upx behavioral1/files/0x0007000000023674-2.dat upx behavioral1/memory/1912-3-0x0000000000580000-0x000000000060C000-memory.dmp upx behavioral1/memory/2260-10-0x0000000000E90000-0x0000000000F1C000-memory.dmp upx behavioral1/memory/1912-13-0x0000000000580000-0x000000000060C000-memory.dmp upx behavioral1/memory/1912-37-0x0000000000580000-0x000000000060C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\20bbf0 8bd3afcc File opened for modification C:\Windows\26b128 27fe0f185f0f0ef2073f7dc3e112b1117afee639dc891ee68c57c34e80ab266e.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 27fe0f185f0f0ef2073f7dc3e112b1117afee639dc891ee68c57c34e80ab266e.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 8bd3afcc - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 8bd3afcc Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 8bd3afcc Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 8bd3afcc Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 8bd3afcc Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 8bd3afcc Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 8bd3afcc Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 8bd3afcc Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 8bd3afcc Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 8bd3afcc - Modifies system certificate store 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\1F24C630CDA418EF2069FFAD4FDD5F463A1B69AA 8bd3afcc Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\1F24C630CDA418EF2069FFAD4FDD5F463A1B69AA\Blob = 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 8bd3afcc - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 1912 8bd3afcc 1912 8bd3afcc 1912 8bd3afcc 1912 8bd3afcc 1912 8bd3afcc 1912 8bd3afcc 1912 8bd3afcc 1912 8bd3afcc 2260 27fe0f185f0f0ef2073f7dc3e112b1117afee639dc891ee68c57c34e80ab266e.exe 2260 27fe0f185f0f0ef2073f7dc3e112b1117afee639dc891ee68c57c34e80ab266e.exe 2260 27fe0f185f0f0ef2073f7dc3e112b1117afee639dc891ee68c57c34e80ab266e.exe 2260 27fe0f185f0f0ef2073f7dc3e112b1117afee639dc891ee68c57c34e80ab266e.exe 2260 27fe0f185f0f0ef2073f7dc3e112b1117afee639dc891ee68c57c34e80ab266e.exe 2260 27fe0f185f0f0ef2073f7dc3e112b1117afee639dc891ee68c57c34e80ab266e.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2260 27fe0f185f0f0ef2073f7dc3e112b1117afee639dc891ee68c57c34e80ab266e.exe Token: SeTcbPrivilege 2260 27fe0f185f0f0ef2073f7dc3e112b1117afee639dc891ee68c57c34e80ab266e.exe Token: SeDebugPrivilege 1912 8bd3afcc Token: SeTcbPrivilege 1912 8bd3afcc
Processes
-
C:\Users\Admin\AppData\Local\Temp\27fe0f185f0f0ef2073f7dc3e112b1117afee639dc891ee68c57c34e80ab266e.exe"C:\Users\Admin\AppData\Local\Temp\27fe0f185f0f0ef2073f7dc3e112b1117afee639dc891ee68c57c34e80ab266e.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:2260
-
C:\Windows\Syswow64\8bd3afccC:\Windows\Syswow64\8bd3afcc1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1912
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\8bd3afcc
- Size 761KB
- SHA256 a32def8c8c89e4f58423df2b91277bdb873d79821c7846f3b3f8765275c805c2
- MD5 3a722c0ed4baa5a998fe0c1bc1063bd1
- SHA1 6625a604658499b508af4be74f34edd0c7c0d0c8
- SHA512 d60942d2b4891245da96aa358798803d133f8d2be5b449e91044517bbcb8fc33dd11c7eb2687f30058756c7d394a411b0b9fcb569ad4d1030e4e8dcf63b3f2c9
- SSDEEP 12288:eSvO2x9mONvKRwLSFtsOkxHya5hYIW0p98B:dvO2xJKRw2kOkxSkW298B
- TLSH T10FF49E35A2808036C0B34532C6F94AABF9797D35631565CBA3843B662F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH