Analysis
- max time kernel
148s - max time network
146s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
28/07/2026, 19:56
Behavioral task
behavioral1
Sample
56d7835cc8f3a8f253fb02540ee31d1f6e13f39b87e968fce5f7686e6a7cacd7.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 56d7835cc8f3a8f253fb02540ee31d1f6e13f39b87e968fce5f7686e6a7cacd7.exe
- Size 560KB
- Sample260728-ynzzvsvbkd
- SHA256 56d7835cc8f3a8f253fb02540ee31d1f6e13f39b87e968fce5f7686e6a7cacd7
- MD5 1708538f36ecaf5f3a12b8b95a290dff
- SHA1 f7f3a342cb4405daad475d49e9056171ad3d781c
- SHA512 8f576e50c606b00fec5a4254724ef2b9fcb223c57a7b712bbe791fcdc6f8b6d34b0fa0ce9e25d3d661d038b7a1049d1ee8559e4b8e4f9cb659cc6631a3049e92
- SSDEEP 6144:Jgye71cE4poJTqvpQLXNKFyLWD1nFairGcEOkCybEaQRuy8K:JI7OE4kopQzNKFyLWDHsOkxHy
- TLSH T17AC48C2AB690C076C4B7D534C5E197AAEAB17432372449CFA3D0075A1F237E2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4908 b991b77a - 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 1 114.114.114.114 2948 56d7835cc8f3a8f253fb02540ee31d1f6e13f39b87e968fce5f7686e6a7cacd7.exe Destination IP 2 223.5.5.5 2948 56d7835cc8f3a8f253fb02540ee31d1f6e13f39b87e968fce5f7686e6a7cacd7.exe Destination IP 9 114.114.114.114 2948 56d7835cc8f3a8f253fb02540ee31d1f6e13f39b87e968fce5f7686e6a7cacd7.exe Destination IP 10 223.5.5.5 2948 56d7835cc8f3a8f253fb02540ee31d1f6e13f39b87e968fce5f7686e6a7cacd7.exe - Drops file in System32 directory 13 IoCs
description ioc Process File created C:\Windows\SysWOW64\b991b77a 56d7835cc8f3a8f253fb02540ee31d1f6e13f39b87e968fce5f7686e6a7cacd7.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE b991b77a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies b991b77a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 b991b77a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache b991b77a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData b991b77a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 b991b77a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 b991b77a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 b991b77a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft b991b77a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content b991b77a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 b991b77a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 b991b77a -
resource yara_rule behavioral2/memory/2948-0-0x0000000000D10000-0x0000000000D9C000-memory.dmp upx behavioral2/files/0x00160000000115f5-2.dat upx behavioral2/memory/4908-3-0x00000000004D0000-0x000000000055C000-memory.dmp upx behavioral2/memory/2948-10-0x0000000000D10000-0x0000000000D9C000-memory.dmp upx behavioral2/memory/4908-11-0x00000000004D0000-0x000000000055C000-memory.dmp upx behavioral2/memory/4908-24-0x00000000004D0000-0x000000000055C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\5406d8 b991b77a File opened for modification C:\Windows\327888 56d7835cc8f3a8f253fb02540ee31d1f6e13f39b87e968fce5f7686e6a7cacd7.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 b991b77a Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 56d7835cc8f3a8f253fb02540ee31d1f6e13f39b87e968fce5f7686e6a7cacd7.exe - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" b991b77a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" b991b77a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" b991b77a Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix b991b77a Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" b991b77a Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" b991b77a Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ b991b77a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" b991b77a Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing b991b77a - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 4908 b991b77a 4908 b991b77a 4908 b991b77a 4908 b991b77a 4908 b991b77a 4908 b991b77a 4908 b991b77a 4908 b991b77a 2948 56d7835cc8f3a8f253fb02540ee31d1f6e13f39b87e968fce5f7686e6a7cacd7.exe 2948 56d7835cc8f3a8f253fb02540ee31d1f6e13f39b87e968fce5f7686e6a7cacd7.exe 2948 56d7835cc8f3a8f253fb02540ee31d1f6e13f39b87e968fce5f7686e6a7cacd7.exe 2948 56d7835cc8f3a8f253fb02540ee31d1f6e13f39b87e968fce5f7686e6a7cacd7.exe 2948 56d7835cc8f3a8f253fb02540ee31d1f6e13f39b87e968fce5f7686e6a7cacd7.exe 2948 56d7835cc8f3a8f253fb02540ee31d1f6e13f39b87e968fce5f7686e6a7cacd7.exe 2948 56d7835cc8f3a8f253fb02540ee31d1f6e13f39b87e968fce5f7686e6a7cacd7.exe 2948 56d7835cc8f3a8f253fb02540ee31d1f6e13f39b87e968fce5f7686e6a7cacd7.exe 2948 56d7835cc8f3a8f253fb02540ee31d1f6e13f39b87e968fce5f7686e6a7cacd7.exe 2948 56d7835cc8f3a8f253fb02540ee31d1f6e13f39b87e968fce5f7686e6a7cacd7.exe 2948 56d7835cc8f3a8f253fb02540ee31d1f6e13f39b87e968fce5f7686e6a7cacd7.exe 2948 56d7835cc8f3a8f253fb02540ee31d1f6e13f39b87e968fce5f7686e6a7cacd7.exe 2948 56d7835cc8f3a8f253fb02540ee31d1f6e13f39b87e968fce5f7686e6a7cacd7.exe 2948 56d7835cc8f3a8f253fb02540ee31d1f6e13f39b87e968fce5f7686e6a7cacd7.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2948 56d7835cc8f3a8f253fb02540ee31d1f6e13f39b87e968fce5f7686e6a7cacd7.exe Token: SeTcbPrivilege 2948 56d7835cc8f3a8f253fb02540ee31d1f6e13f39b87e968fce5f7686e6a7cacd7.exe Token: SeDebugPrivilege 4908 b991b77a Token: SeTcbPrivilege 4908 b991b77a
Processes
-
C:\Users\Admin\AppData\Local\Temp\56d7835cc8f3a8f253fb02540ee31d1f6e13f39b87e968fce5f7686e6a7cacd7.exe"C:\Users\Admin\AppData\Local\Temp\56d7835cc8f3a8f253fb02540ee31d1f6e13f39b87e968fce5f7686e6a7cacd7.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:2948
-
C:\Windows\Syswow64\b991b77aC:\Windows\Syswow64\b991b77a1⤵
- 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:4908
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\b991b77a
- Size 560KB
- SHA256 b45b73eb4f4500a95958d6b274d4a0e43f9dd20d0ab2b8b7b53522b5ca7a6b09
- MD5 18bc94607b38ea32ab16476f5a118a0d
- SHA1 23594fcb19343337b8c7c976b863a2087a0d3065
- SHA512 16058722c640f96df007d081b9eabffcc8cc62bd5bdc963e8fd7277c3ef42a70f3de80acd32f43a6b1e1fe66dd0e16c197cf2bc1b0c47ddf01cff404d12dd83c
- SSDEEP 6144:xgye71cE4poJTqvpQLXNKFyLWD1nFairGcEOkCybEaQRuy8K:xI7OE4kopQzNKFyLWDHsOkxHy
- TLSH T114C48C2AB690C076C4B7D534C5E197AAEAB17432372449CFA3D0075A1F237E2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH