Analysis
- max time kernel
148s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
22/07/2026, 19:19
Behavioral task
behavioral1
Sample
acc58afbce8c7558c8fefa162a70979600215ff3b731572aa4fc5fedfde9e397.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target acc58afbce8c7558c8fefa162a70979600215ff3b731572aa4fc5fedfde9e397.exe
- Size 761KB
- Sample260722-x1lsbsshjc
- SHA256 acc58afbce8c7558c8fefa162a70979600215ff3b731572aa4fc5fedfde9e397
- MD5 893961a2a71ce7b53aecd255bb12a8ae
- SHA1 82cb9e630220f85a96e06192fd6e68d448cc44c2
- SHA512 f89e59ca3fc184e950b52858aa9e22c387821ec8d5a54a0da41ec72ccd22466f44fa19dad78dcf58da02a04fff04f2f59dd7e1e8f37927e177a73d4c37e262b2
- SSDEEP 12288:qSvO2x9mONvKRwLSFtsOkxHya5hYIW0p98B:xvO2xJKRw2kOkxSkW298B
- TLSH T1E9F49E35A2808036C0B34532C6F94AABF9797D35631565CBA3843B662F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4156 3b73598e - 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 3440 acc58afbce8c7558c8fefa162a70979600215ff3b731572aa4fc5fedfde9e397.exe Destination IP 4 223.5.5.5 3440 acc58afbce8c7558c8fefa162a70979600215ff3b731572aa4fc5fedfde9e397.exe Destination IP 16 114.114.114.114 3440 acc58afbce8c7558c8fefa162a70979600215ff3b731572aa4fc5fedfde9e397.exe Destination IP 17 223.5.5.5 3440 acc58afbce8c7558c8fefa162a70979600215ff3b731572aa4fc5fedfde9e397.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 3b73598e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 3b73598e File created C:\Windows\SysWOW64\3b73598e acc58afbce8c7558c8fefa162a70979600215ff3b731572aa4fc5fedfde9e397.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 3b73598e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 3b73598e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 3b73598e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 3b73598e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 3b73598e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 3b73598e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 3b73598e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 3b73598e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 3b73598e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 3b73598e -
resource yara_rule behavioral2/memory/3440-0-0x0000000000820000-0x00000000008AC000-memory.dmp upx behavioral2/files/0x000600000001b714-2.dat upx behavioral2/memory/4156-3-0x0000000000430000-0x00000000004BC000-memory.dmp upx behavioral2/memory/3440-16-0x0000000000820000-0x00000000008AC000-memory.dmp upx behavioral2/memory/4156-17-0x0000000000430000-0x00000000004BC000-memory.dmp upx behavioral2/memory/4156-32-0x0000000000430000-0x00000000004BC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\4726f8 3b73598e File opened for modification C:\Windows\3ae4e0 acc58afbce8c7558c8fefa162a70979600215ff3b731572aa4fc5fedfde9e397.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 acc58afbce8c7558c8fefa162a70979600215ff3b731572aa4fc5fedfde9e397.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 3b73598e - 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:" 3b73598e Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 3b73598e Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 3b73598e Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 3b73598e Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 3b73598e Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 3b73598e Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 3b73598e Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 3b73598e Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 3b73598e - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 4156 3b73598e 4156 3b73598e 4156 3b73598e 4156 3b73598e 4156 3b73598e 4156 3b73598e 4156 3b73598e 4156 3b73598e 3440 acc58afbce8c7558c8fefa162a70979600215ff3b731572aa4fc5fedfde9e397.exe 3440 acc58afbce8c7558c8fefa162a70979600215ff3b731572aa4fc5fedfde9e397.exe 3440 acc58afbce8c7558c8fefa162a70979600215ff3b731572aa4fc5fedfde9e397.exe 3440 acc58afbce8c7558c8fefa162a70979600215ff3b731572aa4fc5fedfde9e397.exe 3440 acc58afbce8c7558c8fefa162a70979600215ff3b731572aa4fc5fedfde9e397.exe 3440 acc58afbce8c7558c8fefa162a70979600215ff3b731572aa4fc5fedfde9e397.exe 3440 acc58afbce8c7558c8fefa162a70979600215ff3b731572aa4fc5fedfde9e397.exe 3440 acc58afbce8c7558c8fefa162a70979600215ff3b731572aa4fc5fedfde9e397.exe 3440 acc58afbce8c7558c8fefa162a70979600215ff3b731572aa4fc5fedfde9e397.exe 3440 acc58afbce8c7558c8fefa162a70979600215ff3b731572aa4fc5fedfde9e397.exe 3440 acc58afbce8c7558c8fefa162a70979600215ff3b731572aa4fc5fedfde9e397.exe 3440 acc58afbce8c7558c8fefa162a70979600215ff3b731572aa4fc5fedfde9e397.exe 3440 acc58afbce8c7558c8fefa162a70979600215ff3b731572aa4fc5fedfde9e397.exe 3440 acc58afbce8c7558c8fefa162a70979600215ff3b731572aa4fc5fedfde9e397.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3440 acc58afbce8c7558c8fefa162a70979600215ff3b731572aa4fc5fedfde9e397.exe Token: SeTcbPrivilege 3440 acc58afbce8c7558c8fefa162a70979600215ff3b731572aa4fc5fedfde9e397.exe Token: SeDebugPrivilege 4156 3b73598e Token: SeTcbPrivilege 4156 3b73598e
Processes
-
C:\Users\Admin\AppData\Local\Temp\acc58afbce8c7558c8fefa162a70979600215ff3b731572aa4fc5fedfde9e397.exe"C:\Users\Admin\AppData\Local\Temp\acc58afbce8c7558c8fefa162a70979600215ff3b731572aa4fc5fedfde9e397.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:3440
-
C:\Windows\Syswow64\3b73598eC:\Windows\Syswow64\3b73598e1⤵
- 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:4156
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\3b73598e
- Size 761KB
- SHA256 16ef9db3292c9cb510ed72fd8e79ea77ad88ef1b5e26e5b83db05d9f093fc847
- MD5 cde6213fb15cd18caec3db7bee4fdc36
- SHA1 dad6640cfd0373cde883c1aa67f78e81b2121b1b
- SHA512 575a5d06246e44e53e915f2c8c83a9ae16052a14d1342ce385cb8f31e2a84dac9e71c96a8f1f7d8b5383c4759368a2df06a0a2d4112cc4e8844bc1277b71a912
- SSDEEP 12288:dSvO2x9mONvKRwLSFtsOkxHya5hYIW0p98B:8vO2xJKRw2kOkxSkW298B
- TLSH T1EFF49E35A2808036C0B34532C6F94AABF9797D35631565CBA3843B662F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH