Analysis
- max time kernel
150s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
31/08/2026, 01:24
Behavioral task
behavioral1
Sample
83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe
- Size 1.4MB
- Sample260831-bsdk4ashra
- SHA256 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91
- MD5 3c621a16cec142c5b1aaeef0486ad168
- SHA1 804e1ed0adeb8824b926fcab2b2b4f8686d6f939
- SHA512 997d1db37d1ee9d42b882b83beec741c907c33ff021bd48f4e4351ce26104c87160521a72c6ee73c629e92c3615e96be717cd80774c83a482ab4d0408541ca90
- SSDEEP 24576:QjHPOSOkx2LFscUQPxuZ98Es8k3OH3C0rQ6+8pKJJFo3Q+qdCOKIbA0I:QTGkQy5QZuTtS0rQMYOQ+q8CE0I
- TLSH T1D365AE21B341C036D59A01758ABE4BAE957CBD314B2551C7B3C87E7E6FB12D2AA3130B
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 1984 c6604738 - Unexpected DNS network traffic destination 18 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 293 114.114.114.114 1208 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe Destination IP 100 223.5.5.5 1208 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe Destination IP 164 223.5.5.5 1208 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe Destination IP 294 223.5.5.5 1208 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe Destination IP 324 223.5.5.5 1208 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe Destination IP 377 114.114.114.114 1208 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe Destination IP 42 223.5.5.5 1208 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe Destination IP 96 114.114.114.114 1984 c6604738 Destination IP 237 223.5.5.5 1208 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe Destination IP 1 114.114.114.114 1208 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe Destination IP 41 114.114.114.114 1208 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe Destination IP 162 114.114.114.114 1208 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe Destination IP 236 114.114.114.114 1208 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe Destination IP 323 114.114.114.114 1208 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe Destination IP 378 223.5.5.5 1208 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe Destination IP 3 223.5.5.5 1208 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe Destination IP 97 223.5.5.5 1208 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe Destination IP 99 114.114.114.114 1208 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.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 c6604738 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft c6604738 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData c6604738 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 c6604738 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 c6604738 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 c6604738 File created C:\Windows\SysWOW64\c6604738 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 c6604738 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE c6604738 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies c6604738 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache c6604738 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content c6604738 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 c6604738 -
resource yara_rule behavioral2/memory/1208-0-0x0000000000EF0000-0x0000000000F79000-memory.dmp upx behavioral2/files/0x000a000000019cc9-2.dat upx behavioral2/memory/1984-3-0x0000000000F30000-0x0000000000FB9000-memory.dmp upx behavioral2/memory/1208-16-0x0000000000EF0000-0x0000000000F79000-memory.dmp upx behavioral2/memory/1984-18-0x0000000000F30000-0x0000000000FB9000-memory.dmp upx behavioral2/memory/1984-24-0x0000000000F30000-0x0000000000FB9000-memory.dmp upx behavioral2/memory/1208-41-0x0000000000EF0000-0x0000000000F79000-memory.dmp upx behavioral2/memory/1984-42-0x0000000000F30000-0x0000000000FB9000-memory.dmp upx behavioral2/memory/1984-46-0x0000000000F30000-0x0000000000FB9000-memory.dmp upx behavioral2/memory/1208-47-0x0000000000EF0000-0x0000000000F79000-memory.dmp upx behavioral2/memory/1208-53-0x0000000000EF0000-0x0000000000F79000-memory.dmp upx behavioral2/memory/1208-65-0x0000000000EF0000-0x0000000000F79000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\21f780 c6604738 File opened for modification C:\Windows\14ae70 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.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 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language c6604738 - 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" c6604738 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" c6604738 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" c6604738 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing c6604738 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix c6604738 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" c6604738 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" c6604738 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ c6604738 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" c6604738 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 1984 c6604738 1984 c6604738 1984 c6604738 1984 c6604738 1984 c6604738 1984 c6604738 1984 c6604738 1984 c6604738 1208 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe 1208 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe 1208 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe 1208 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe 1208 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe 1208 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe 1208 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe 1208 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe 1208 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe 1208 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe 1208 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe 1208 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe 1208 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe 1208 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1208 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe Token: SeTcbPrivilege 1208 83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe Token: SeDebugPrivilege 1984 c6604738 Token: SeTcbPrivilege 1984 c6604738
Processes
-
C:\Users\Admin\AppData\Local\Temp\83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.exe"C:\Users\Admin\AppData\Local\Temp\83d7a86a9b17c29e2c959f8f239bc105c88d0825921069552506851ac513cd91.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:1208
-
C:\Windows\Syswow64\c6604738C:\Windows\Syswow64\c66047381⤵
- Executes dropped EXE
- Unexpected DNS network traffic destination
- 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:1984
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\c6604738
- Size 1.4MB
- SHA256 ae83bc1fee6b96248d12808fe2ebab0899b9610889864f85af0e77621dfd5e96
- MD5 d74e319011f45428a6366922ab9a97ea
- SHA1 fab0b466c283b04362780ddad33fb50d21719b9c
- SHA512 5b63085084ac4532d816b31d656c5ac091a694f8e893e088f851a390ffcf2ec7b33083a1cbe1a84c6a2d2e21ac1275eb2ceaa8b1dfb86fb56212a15d9f4453a2
- SSDEEP 24576:6jHPOSOkx2LFscUQPxuZ98Es8k3OH3C0rQ6+8pKJJFo3Q+qdCOKIbA0I:6TGkQy5QZuTtS0rQMYOQ+q8CE0I
- TLSH T10365AE21B341C036D59A01758ABE4BAE957CBD314B2551C7B3C87E7E6FB12D2AA3130B
- MD5 SHA1 SHA512 SSDEEP TLSH