Analysis
- max time kernel
150s - max time network
154s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
01/08/2026, 19:12
Behavioral task
behavioral1
Sample
99c83ebe8a43687e247f520b88b82974f0c40348d264e79ed1945c8a4f340f1e.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 99c83ebe8a43687e247f520b88b82974f0c40348d264e79ed1945c8a4f340f1e.exe
- Size 2.9MB
- Sample260801-xwhj4seq8x
- SHA256 99c83ebe8a43687e247f520b88b82974f0c40348d264e79ed1945c8a4f340f1e
- MD5 65d8a46a3b72b8bd776913abd4828781
- SHA1 32f48790c803b7eb72777db3c5acfd9325cc1ab4
- SHA512 050bf4d48dff3a0d92957c3712d1055a54da6b64f9ee4a8de7d9b6cd649e3e1a659a35deb195d35dc97b9a9a2ffd9416bb43784fb71c1c1949a1e7af3792f65f
- SSDEEP 49152:0HHKX2WQt56/OJdJCXDrsOFZMjHfUTGkQy5QZuTtS0rQMYOF:0nK7mkOhCXHHFZMjHfUKkVWsM0r1F
- TLSH T1E3D59E31B6818036D1B7467186FA47BBA5257C211721A5CFB3C47B2A1FB36D2AE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 1612 5165d176 - 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 5 223.5.5.5 4144 99c83ebe8a43687e247f520b88b82974f0c40348d264e79ed1945c8a4f340f1e.exe Destination IP 20 114.114.114.114 4144 99c83ebe8a43687e247f520b88b82974f0c40348d264e79ed1945c8a4f340f1e.exe Destination IP 21 223.5.5.5 4144 99c83ebe8a43687e247f520b88b82974f0c40348d264e79ed1945c8a4f340f1e.exe Destination IP 3 114.114.114.114 4144 99c83ebe8a43687e247f520b88b82974f0c40348d264e79ed1945c8a4f340f1e.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 5165d176 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 5165d176 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 5165d176 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 5165d176 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 5165d176 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 5165d176 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 5165d176 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 5165d176 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 5165d176 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 5165d176 File created C:\Windows\SysWOW64\5165d176 99c83ebe8a43687e247f520b88b82974f0c40348d264e79ed1945c8a4f340f1e.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 5165d176 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 5165d176 -
resource yara_rule behavioral2/memory/4144-0-0x0000000000CD0000-0x0000000000D5C000-memory.dmp upx behavioral2/files/0x001000000001c46c-2.dat upx behavioral2/memory/1612-3-0x0000000000FC0000-0x000000000104C000-memory.dmp upx behavioral2/memory/4144-16-0x0000000000CD0000-0x0000000000D5C000-memory.dmp upx behavioral2/memory/1612-17-0x0000000000FC0000-0x000000000104C000-memory.dmp upx behavioral2/memory/1612-32-0x0000000000FC0000-0x000000000104C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\46f260 99c83ebe8a43687e247f520b88b82974f0c40348d264e79ed1945c8a4f340f1e.exe File opened for modification C:\Windows\1b9918 5165d176 - 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 5165d176 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 99c83ebe8a43687e247f520b88b82974f0c40348d264e79ed1945c8a4f340f1e.exe - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 5165d176 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 5165d176 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 5165d176 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 5165d176 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 5165d176 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 5165d176 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 5165d176 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 5165d176 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 5165d176 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 1612 5165d176 1612 5165d176 1612 5165d176 1612 5165d176 1612 5165d176 1612 5165d176 1612 5165d176 1612 5165d176 4144 99c83ebe8a43687e247f520b88b82974f0c40348d264e79ed1945c8a4f340f1e.exe 4144 99c83ebe8a43687e247f520b88b82974f0c40348d264e79ed1945c8a4f340f1e.exe 4144 99c83ebe8a43687e247f520b88b82974f0c40348d264e79ed1945c8a4f340f1e.exe 4144 99c83ebe8a43687e247f520b88b82974f0c40348d264e79ed1945c8a4f340f1e.exe 4144 99c83ebe8a43687e247f520b88b82974f0c40348d264e79ed1945c8a4f340f1e.exe 4144 99c83ebe8a43687e247f520b88b82974f0c40348d264e79ed1945c8a4f340f1e.exe 4144 99c83ebe8a43687e247f520b88b82974f0c40348d264e79ed1945c8a4f340f1e.exe 4144 99c83ebe8a43687e247f520b88b82974f0c40348d264e79ed1945c8a4f340f1e.exe 4144 99c83ebe8a43687e247f520b88b82974f0c40348d264e79ed1945c8a4f340f1e.exe 4144 99c83ebe8a43687e247f520b88b82974f0c40348d264e79ed1945c8a4f340f1e.exe 4144 99c83ebe8a43687e247f520b88b82974f0c40348d264e79ed1945c8a4f340f1e.exe 4144 99c83ebe8a43687e247f520b88b82974f0c40348d264e79ed1945c8a4f340f1e.exe 4144 99c83ebe8a43687e247f520b88b82974f0c40348d264e79ed1945c8a4f340f1e.exe 4144 99c83ebe8a43687e247f520b88b82974f0c40348d264e79ed1945c8a4f340f1e.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4144 99c83ebe8a43687e247f520b88b82974f0c40348d264e79ed1945c8a4f340f1e.exe Token: SeTcbPrivilege 4144 99c83ebe8a43687e247f520b88b82974f0c40348d264e79ed1945c8a4f340f1e.exe Token: SeDebugPrivilege 1612 5165d176 Token: SeTcbPrivilege 1612 5165d176
Processes
-
C:\Users\Admin\AppData\Local\Temp\99c83ebe8a43687e247f520b88b82974f0c40348d264e79ed1945c8a4f340f1e.exe"C:\Users\Admin\AppData\Local\Temp\99c83ebe8a43687e247f520b88b82974f0c40348d264e79ed1945c8a4f340f1e.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:4144
-
C:\Windows\Syswow64\5165d176C:\Windows\Syswow64\5165d1761⤵
- 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:1612
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\5165d176
- Size 2.9MB
- SHA256 2d0649655f75b42543b67bf44b82554b8f368b4c7c880abbfed7f0bb1405468f
- MD5 a4c5255414f2165a3f7523ea82e07e4f
- SHA1 eb3953f3def21b7bb9977cdc41237233654dd0ca
- SHA512 728e41d317af58a21df0f0e9bfb45e670dbed6bc12248a3a946f467dbe2e0f4b2b0e52265065d464dd323d1025c51b71aec39b4593d280e9176bd84651e014b5
- SSDEEP 49152:pHHKX2WQt56/OJdJCXDrsOFZMjHfUTGkQy5QZuTtS0rQMYOF:pnK7mkOhCXHHFZMjHfUKkVWsM0r1F
- TLSH T1D5D59E31B6818036D1B7467186FA47BBA5257C211721A5CFB3C47B2A1FB36D2AE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH