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
24/04/2026, 09:09
Behavioral task
behavioral1
Sample
1681590367bcb2cb3121e3e265332ad17386d526108682d6c66a3a9351e92541.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 1681590367bcb2cb3121e3e265332ad17386d526108682d6c66a3a9351e92541.exe
- Size 560KB
- Sample260424-k4erzaev2n
- SHA256 1681590367bcb2cb3121e3e265332ad17386d526108682d6c66a3a9351e92541
- MD5 1671c141c985cfabed7131316fe5f191
- SHA1 8bd63034aa536a1cba49e8c8d6132c8207a4b029
- SHA512 1bb11cf17ecfd58a1f51f16b8c4829d1214e71be690768ca66f99954ab6707d4eace07c30f9f867e9ca9c79463328c25f006211f37d4671987f3b00819c01ddc
- SSDEEP 6144:l4ZaN1cb90oOTFmIFLq0cvnXhLCqj2EFNirGcEOkCybEaQRuy8K:lrNOb9+sIF+0cvnXhLCqEsOkxHy
- TLSH T15AC48D29B6E0C076C4B79578C4A186B6FAB17832372459CFA394075A1F337E2BA3570D
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4476 b8e3317a - Unexpected DNS network traffic destination 8 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 4480 1681590367bcb2cb3121e3e265332ad17386d526108682d6c66a3a9351e92541.exe Destination IP 4 223.5.5.5 4480 1681590367bcb2cb3121e3e265332ad17386d526108682d6c66a3a9351e92541.exe Destination IP 51 114.114.114.114 4480 1681590367bcb2cb3121e3e265332ad17386d526108682d6c66a3a9351e92541.exe Destination IP 52 223.5.5.5 4480 1681590367bcb2cb3121e3e265332ad17386d526108682d6c66a3a9351e92541.exe Destination IP 61 114.114.114.114 4480 1681590367bcb2cb3121e3e265332ad17386d526108682d6c66a3a9351e92541.exe Destination IP 63 223.5.5.5 4480 1681590367bcb2cb3121e3e265332ad17386d526108682d6c66a3a9351e92541.exe Destination IP 121 114.114.114.114 4480 1681590367bcb2cb3121e3e265332ad17386d526108682d6c66a3a9351e92541.exe Destination IP 122 223.5.5.5 4480 1681590367bcb2cb3121e3e265332ad17386d526108682d6c66a3a9351e92541.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft b8e3317a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 b8e3317a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content b8e3317a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 b8e3317a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 b8e3317a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 b8e3317a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache b8e3317a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData b8e3317a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 b8e3317a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 b8e3317a File created C:\Windows\SysWOW64\b8e3317a 1681590367bcb2cb3121e3e265332ad17386d526108682d6c66a3a9351e92541.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE b8e3317a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies b8e3317a -
resource yara_rule behavioral1/memory/4480-0-0x0000000000590000-0x000000000061C000-memory.dmp upx behavioral1/files/0x000b0000000243e7-2.dat upx behavioral1/memory/4476-4-0x00000000005A0000-0x000000000062C000-memory.dmp upx behavioral1/memory/4480-18-0x0000000000590000-0x000000000061C000-memory.dmp upx behavioral1/memory/4476-19-0x00000000005A0000-0x000000000062C000-memory.dmp upx behavioral1/memory/4476-32-0x00000000005A0000-0x000000000062C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\4ca178 b8e3317a File opened for modification C:\Windows\4cb300 1681590367bcb2cb3121e3e265332ad17386d526108682d6c66a3a9351e92541.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 1681590367bcb2cb3121e3e265332ad17386d526108682d6c66a3a9351e92541.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b8e3317a - 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" b8e3317a Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" b8e3317a Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ b8e3317a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" b8e3317a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" b8e3317a Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing b8e3317a Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix b8e3317a Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" b8e3317a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" b8e3317a - Suspicious behavior: EnumeratesProcesses 18 IoCs
pid Process 4476 b8e3317a 4476 b8e3317a 4476 b8e3317a 4476 b8e3317a 4476 b8e3317a 4476 b8e3317a 4476 b8e3317a 4476 b8e3317a 4476 b8e3317a 4476 b8e3317a 4476 b8e3317a 4476 b8e3317a 4480 1681590367bcb2cb3121e3e265332ad17386d526108682d6c66a3a9351e92541.exe 4480 1681590367bcb2cb3121e3e265332ad17386d526108682d6c66a3a9351e92541.exe 4480 1681590367bcb2cb3121e3e265332ad17386d526108682d6c66a3a9351e92541.exe 4480 1681590367bcb2cb3121e3e265332ad17386d526108682d6c66a3a9351e92541.exe 4480 1681590367bcb2cb3121e3e265332ad17386d526108682d6c66a3a9351e92541.exe 4480 1681590367bcb2cb3121e3e265332ad17386d526108682d6c66a3a9351e92541.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4480 1681590367bcb2cb3121e3e265332ad17386d526108682d6c66a3a9351e92541.exe Token: SeTcbPrivilege 4480 1681590367bcb2cb3121e3e265332ad17386d526108682d6c66a3a9351e92541.exe Token: SeDebugPrivilege 4476 b8e3317a Token: SeTcbPrivilege 4476 b8e3317a
Processes
-
C:\Users\Admin\AppData\Local\Temp\1681590367bcb2cb3121e3e265332ad17386d526108682d6c66a3a9351e92541.exe"C:\Users\Admin\AppData\Local\Temp\1681590367bcb2cb3121e3e265332ad17386d526108682d6c66a3a9351e92541.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:4480
-
C:\Windows\Syswow64\b8e3317aC:\Windows\Syswow64\b8e3317a1⤵
- 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:4476
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\b8e3317a
- Size 560KB
- SHA256 8c8081abea752ed2a5d93ff86fc800a9c047d0b526c2f99d3fecbb9e72b20b8f
- MD5 2d1c3935be1d457780c927bed947681b
- SHA1 602410a3abea6120daadba600bca3a8af986da48
- SHA512 6bcaa0a63aad61b75cf988ff934dbe24556eeee3a05055a2418fd8567006dd67e22098bcadf3e585b47ac6c67801fdc920bbb2e30bcaa57de4fc23356294c3aa
- SSDEEP 6144:h4ZaN1cb90oOTFmIFLq0cvnXhLCqj2EFNirGcEOkCybEaQRuy8K:hrNOb9+sIF+0cvnXhLCqEsOkxHy
- TLSH T194C48D29B6E0C076C4B79578C4A186B6FAB17832372459CFA394075A1F337E2BA3570D
- MD5 SHA1 SHA512 SSDEEP TLSH