Analysis
- max time kernel
150s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
02/08/2026, 07:46
Behavioral task
behavioral1
Sample
4bedf91d3346b1b849a4d6fff8c65c681dd93b8c95ac0ff6834d41bfafb28ec1.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 4bedf91d3346b1b849a4d6fff8c65c681dd93b8c95ac0ff6834d41bfafb28ec1.exe
- Size 560KB
- Sample260802-jmbhjseq8y
- SHA256 4bedf91d3346b1b849a4d6fff8c65c681dd93b8c95ac0ff6834d41bfafb28ec1
- MD5 0c940b26188763c52ccea00209d9c0a4
- SHA1 6534c21d175de57df5bfba7d976c96af022cce37
- SHA512 1bbf499c7980c7a6f79e00a238d03147a16b4003c6b79d6394787dd87be304b8aef7fc91447d33e3fa2671e4a684552a79c3286b553ad6a143928895c7ff9ce3
- SSDEEP 6144:Ggye71cE4poJTqvpQLXNKFyLWD1nFairGcEOkCybEaQRuy8K:GI7OE4kopQzNKFyLWDHsOkxHy
- TLSH T1E3C48C2AB690C076C4B7D534C5E197AAEAB17432372449CFA3D0075A1F237E2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 2772 981a3bfc - 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 8 223.5.5.5 4156 4bedf91d3346b1b849a4d6fff8c65c681dd93b8c95ac0ff6834d41bfafb28ec1.exe Destination IP 17 114.114.114.114 4156 4bedf91d3346b1b849a4d6fff8c65c681dd93b8c95ac0ff6834d41bfafb28ec1.exe Destination IP 18 223.5.5.5 4156 4bedf91d3346b1b849a4d6fff8c65c681dd93b8c95ac0ff6834d41bfafb28ec1.exe Destination IP 1 114.114.114.114 4156 4bedf91d3346b1b849a4d6fff8c65c681dd93b8c95ac0ff6834d41bfafb28ec1.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 981a3bfc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 981a3bfc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 981a3bfc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 981a3bfc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 981a3bfc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 981a3bfc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 981a3bfc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 981a3bfc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 981a3bfc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 981a3bfc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C 981a3bfc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C 981a3bfc File created C:\Windows\SysWOW64\981a3bfc 4bedf91d3346b1b849a4d6fff8c65c681dd93b8c95ac0ff6834d41bfafb28ec1.exe -
resource yara_rule behavioral2/memory/4156-0-0x00000000005F0000-0x000000000067C000-memory.dmp upx behavioral2/files/0x0009000000011380-2.dat upx behavioral2/memory/2772-3-0x00000000003E0000-0x000000000046C000-memory.dmp upx behavioral2/memory/4156-13-0x00000000005F0000-0x000000000067C000-memory.dmp upx behavioral2/memory/2772-14-0x00000000003E0000-0x000000000046C000-memory.dmp upx behavioral2/memory/2772-32-0x00000000003E0000-0x000000000046C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\2f7528 981a3bfc File opened for modification C:\Windows\4726f8 4bedf91d3346b1b849a4d6fff8c65c681dd93b8c95ac0ff6834d41bfafb28ec1.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 4bedf91d3346b1b849a4d6fff8c65c681dd93b8c95ac0ff6834d41bfafb28ec1.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 981a3bfc - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 981a3bfc Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 981a3bfc Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 981a3bfc Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 981a3bfc Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 981a3bfc Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 981a3bfc Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 981a3bfc Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 981a3bfc Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 981a3bfc - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 2772 981a3bfc 2772 981a3bfc 2772 981a3bfc 2772 981a3bfc 2772 981a3bfc 2772 981a3bfc 2772 981a3bfc 2772 981a3bfc 4156 4bedf91d3346b1b849a4d6fff8c65c681dd93b8c95ac0ff6834d41bfafb28ec1.exe 4156 4bedf91d3346b1b849a4d6fff8c65c681dd93b8c95ac0ff6834d41bfafb28ec1.exe 4156 4bedf91d3346b1b849a4d6fff8c65c681dd93b8c95ac0ff6834d41bfafb28ec1.exe 4156 4bedf91d3346b1b849a4d6fff8c65c681dd93b8c95ac0ff6834d41bfafb28ec1.exe 4156 4bedf91d3346b1b849a4d6fff8c65c681dd93b8c95ac0ff6834d41bfafb28ec1.exe 4156 4bedf91d3346b1b849a4d6fff8c65c681dd93b8c95ac0ff6834d41bfafb28ec1.exe 4156 4bedf91d3346b1b849a4d6fff8c65c681dd93b8c95ac0ff6834d41bfafb28ec1.exe 4156 4bedf91d3346b1b849a4d6fff8c65c681dd93b8c95ac0ff6834d41bfafb28ec1.exe 4156 4bedf91d3346b1b849a4d6fff8c65c681dd93b8c95ac0ff6834d41bfafb28ec1.exe 4156 4bedf91d3346b1b849a4d6fff8c65c681dd93b8c95ac0ff6834d41bfafb28ec1.exe 4156 4bedf91d3346b1b849a4d6fff8c65c681dd93b8c95ac0ff6834d41bfafb28ec1.exe 4156 4bedf91d3346b1b849a4d6fff8c65c681dd93b8c95ac0ff6834d41bfafb28ec1.exe 4156 4bedf91d3346b1b849a4d6fff8c65c681dd93b8c95ac0ff6834d41bfafb28ec1.exe 4156 4bedf91d3346b1b849a4d6fff8c65c681dd93b8c95ac0ff6834d41bfafb28ec1.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4156 4bedf91d3346b1b849a4d6fff8c65c681dd93b8c95ac0ff6834d41bfafb28ec1.exe Token: SeTcbPrivilege 4156 4bedf91d3346b1b849a4d6fff8c65c681dd93b8c95ac0ff6834d41bfafb28ec1.exe Token: SeDebugPrivilege 2772 981a3bfc Token: SeTcbPrivilege 2772 981a3bfc
Processes
-
C:\Users\Admin\AppData\Local\Temp\4bedf91d3346b1b849a4d6fff8c65c681dd93b8c95ac0ff6834d41bfafb28ec1.exe"C:\Users\Admin\AppData\Local\Temp\4bedf91d3346b1b849a4d6fff8c65c681dd93b8c95ac0ff6834d41bfafb28ec1.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:4156
-
C:\Windows\Syswow64\981a3bfcC:\Windows\Syswow64\981a3bfc1⤵
- 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:2772
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\981a3bfc
- Size 560KB
- SHA256 3b8a81567cb8221cb758f53357e34b3d0464ef7b261603020ce917a0652efc50
- MD5 aaa8053ac0c57e3fac39f3031d0ba4e3
- SHA1 466a500daef22bcae38ef4bd206e4583d526c4d4
- SHA512 03ca916773132caeb60d7bfa5a2f78e6da933431f3c7fd10f80de68af629ef5ed4dd5272a9d0631f651a593e2f26d3ffe01546e7046bc0ea2e066e152cfdd68f
- SSDEEP 6144:mgye71cE4poJTqvpQLXNKFyLWD1nFairGcEOkCybEaQRuy8K:mI7OE4kopQzNKFyLWDHsOkxHy
- TLSH T10EC48C2AB690C076C4B7D534C5E197AAEAB17432372449CFA7D0075A1F237E2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH