Analysis
- max time kernel
149s - max time network
153s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
16/04/2026, 08:50
Behavioral task
behavioral1
Sample
27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe
- Size 3.0MB
- Sample260416-krss3abv8n
- SHA256 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371
- MD5 0163b70f8725d2e7a3da04d12cb0485d
- SHA1 73a203f59ca280d2cb905b8dc051b7898ad96fdb
- SHA512 d76e717e3e705212ac72f4547d98a34c5bb177cd64e9da4a11714cff3b606f87a37e84a4a17b1acc7c0f34be04db3e0003e85e82a3b85fea8217c6c6466ef5d5
- SSDEEP 49152:0A/JuTQKqVmgbQIzZMPXpB91rHpn/qKmNAOaG6IOY/:D/whnLrHp/qKm2/Sb/
- TLSH T1DEE55953EB914AE8E39D0536DF544150E72AF2256BEF13A27428420DDE83387BF61A3D
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 2148 2927875e - 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 4680 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe Destination IP 35 114.114.114.114 4680 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe Destination IP 37 114.114.114.114 4680 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe Destination IP 38 223.5.5.5 4680 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe Destination IP 69 114.114.114.114 4680 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe Destination IP 1 114.114.114.114 4680 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.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 2927875e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 2927875e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 2927875e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 2927875e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 2927875e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 2927875e File created C:\Windows\SysWOW64\2927875e 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 2927875e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 2927875e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 2927875e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 2927875e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 2927875e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 2927875e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 2927875e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 2927875e -
resource yara_rule behavioral2/memory/4680-0-0x0000000000400000-0x0000000000705000-memory.dmp upx behavioral2/files/0x0016000000027002-2.dat upx behavioral2/memory/2148-4-0x0000000000500000-0x0000000000805000-memory.dmp upx behavioral2/memory/4680-13-0x0000000000400000-0x0000000000705000-memory.dmp upx behavioral2/memory/2148-16-0x0000000000500000-0x0000000000805000-memory.dmp upx behavioral2/memory/2148-34-0x0000000000500000-0x0000000000805000-memory.dmp upx - 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 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2927875e - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 2927875e Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 2927875e Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 2927875e Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 2927875e Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 2927875e Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 2927875e Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 2927875e Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 2927875e Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 2927875e - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 2148 2927875e 2148 2927875e 2148 2927875e 2148 2927875e 2148 2927875e 2148 2927875e 2148 2927875e 2148 2927875e 4680 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe 4680 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe 4680 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe 4680 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe 4680 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe 4680 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4680 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe Token: SeTcbPrivilege 4680 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe Token: SeDebugPrivilege 2148 2927875e Token: SeTcbPrivilege 2148 2927875e
Processes
-
C:\Users\Admin\AppData\Local\Temp\27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe"C:\Users\Admin\AppData\Local\Temp\27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe"1⤵
- Unexpected DNS network traffic destination
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4680
-
C:\Windows\Syswow64\2927875eC:\Windows\Syswow64\2927875e1⤵
- Executes dropped EXE
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2148
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\2927875e
- Size 3.0MB
- SHA256 7d8cf5040e6567b1dcc3c216c8e561c011186939feab0ec51f7eb168b6bc1d58
- MD5 5ab3a66fd6b5f1b218c810799184dfa5
- SHA1 97c232c5a72a8a6de8bc10a108ca28f661d8b3ab
- SHA512 7293efcd7690c3ae3c8dd9cf153380bd2393238d1ef9feaddbf5a8163f97847e10e3d597495da8d7439ed8b0aa144d559f67ade7d46b79b980b622d99e4059db
- SSDEEP 49152:BA/JuTQKqVmgbQIzZMPXpB91rHpn/qKmNAOaG6IOY/:m/whnLrHp/qKm2/Sb/
- TLSH T187E55953EB914AE8E39D0536DF544150E72AF2256BEF13A27428420DDE83387BF61A3D
- MD5 SHA1 SHA512 SSDEEP TLSH