Analysis
- max time kernel
148s - 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, 09:56
Behavioral task
behavioral1
Sample
04a1e3f2ec4ec3ae094a53b0798aa174403f146332111095a17a001e64eb11fb.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 04a1e3f2ec4ec3ae094a53b0798aa174403f146332111095a17a001e64eb11fb.exe
- Size 832KB
- Sample260831-lybc2azbna
- SHA256 04a1e3f2ec4ec3ae094a53b0798aa174403f146332111095a17a001e64eb11fb
- MD5 ac9835e382e7253253871d1370b4a4ca
- SHA1 aa7140afb4b08e39b4e7e317c391f037f4716370
- SHA512 7c1f1c74e7f10231df88df814cc6773978b40355c579b2f96a6533cd925c94d2ce7f9550d56a76b6a3bf43675dc4d75360e486ab7329f4eb9b247c08fface749
- SSDEEP 12288:/SvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/Likr:KvO2xJKRw2kOkx2LFRvcUv
- TLSH T17B055A31E6418036D1B34576C6FA0BBFE664BD25131155CBA3C4BA262FB36D2BA3170E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4100 b6e859ff - Unexpected DNS network traffic destination 8 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 4884 04a1e3f2ec4ec3ae094a53b0798aa174403f146332111095a17a001e64eb11fb.exe Destination IP 39 114.114.114.114 4100 b6e859ff Destination IP 40 223.5.5.5 4884 04a1e3f2ec4ec3ae094a53b0798aa174403f146332111095a17a001e64eb11fb.exe Destination IP 93 114.114.114.114 4100 b6e859ff Destination IP 95 223.5.5.5 4884 04a1e3f2ec4ec3ae094a53b0798aa174403f146332111095a17a001e64eb11fb.exe Destination IP 97 114.114.114.114 4884 04a1e3f2ec4ec3ae094a53b0798aa174403f146332111095a17a001e64eb11fb.exe Destination IP 98 223.5.5.5 4884 04a1e3f2ec4ec3ae094a53b0798aa174403f146332111095a17a001e64eb11fb.exe Destination IP 3 114.114.114.114 4884 04a1e3f2ec4ec3ae094a53b0798aa174403f146332111095a17a001e64eb11fb.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content b6e859ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 b6e859ff File created C:\Windows\SysWOW64\b6e859ff 04a1e3f2ec4ec3ae094a53b0798aa174403f146332111095a17a001e64eb11fb.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 b6e859ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE b6e859ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft b6e859ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache b6e859ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 b6e859ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 b6e859ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies b6e859ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 b6e859ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData b6e859ff File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 b6e859ff -
resource yara_rule behavioral2/memory/4884-0-0x0000000000610000-0x000000000069C000-memory.dmp upx behavioral2/files/0x000a000000019cb8-2.dat upx behavioral2/memory/4100-3-0x0000000000590000-0x000000000061C000-memory.dmp upx behavioral2/memory/4884-18-0x0000000000610000-0x000000000069C000-memory.dmp upx behavioral2/memory/4100-19-0x0000000000590000-0x000000000061C000-memory.dmp upx behavioral2/memory/4100-36-0x0000000000590000-0x000000000061C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\463188 b6e859ff File opened for modification C:\Windows\539da8 04a1e3f2ec4ec3ae094a53b0798aa174403f146332111095a17a001e64eb11fb.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 04a1e3f2ec4ec3ae094a53b0798aa174403f146332111095a17a001e64eb11fb.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b6e859ff - 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:" b6e859ff Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ b6e859ff Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" b6e859ff Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" b6e859ff Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" b6e859ff Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing b6e859ff Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix b6e859ff Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" b6e859ff Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" b6e859ff - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 4100 b6e859ff 4100 b6e859ff 4100 b6e859ff 4100 b6e859ff 4100 b6e859ff 4100 b6e859ff 4100 b6e859ff 4100 b6e859ff 4884 04a1e3f2ec4ec3ae094a53b0798aa174403f146332111095a17a001e64eb11fb.exe 4884 04a1e3f2ec4ec3ae094a53b0798aa174403f146332111095a17a001e64eb11fb.exe 4884 04a1e3f2ec4ec3ae094a53b0798aa174403f146332111095a17a001e64eb11fb.exe 4884 04a1e3f2ec4ec3ae094a53b0798aa174403f146332111095a17a001e64eb11fb.exe 4884 04a1e3f2ec4ec3ae094a53b0798aa174403f146332111095a17a001e64eb11fb.exe 4884 04a1e3f2ec4ec3ae094a53b0798aa174403f146332111095a17a001e64eb11fb.exe 4884 04a1e3f2ec4ec3ae094a53b0798aa174403f146332111095a17a001e64eb11fb.exe 4884 04a1e3f2ec4ec3ae094a53b0798aa174403f146332111095a17a001e64eb11fb.exe 4884 04a1e3f2ec4ec3ae094a53b0798aa174403f146332111095a17a001e64eb11fb.exe 4884 04a1e3f2ec4ec3ae094a53b0798aa174403f146332111095a17a001e64eb11fb.exe 4884 04a1e3f2ec4ec3ae094a53b0798aa174403f146332111095a17a001e64eb11fb.exe 4884 04a1e3f2ec4ec3ae094a53b0798aa174403f146332111095a17a001e64eb11fb.exe 4884 04a1e3f2ec4ec3ae094a53b0798aa174403f146332111095a17a001e64eb11fb.exe 4884 04a1e3f2ec4ec3ae094a53b0798aa174403f146332111095a17a001e64eb11fb.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4884 04a1e3f2ec4ec3ae094a53b0798aa174403f146332111095a17a001e64eb11fb.exe Token: SeTcbPrivilege 4884 04a1e3f2ec4ec3ae094a53b0798aa174403f146332111095a17a001e64eb11fb.exe Token: SeDebugPrivilege 4100 b6e859ff Token: SeTcbPrivilege 4100 b6e859ff
Processes
-
C:\Users\Admin\AppData\Local\Temp\04a1e3f2ec4ec3ae094a53b0798aa174403f146332111095a17a001e64eb11fb.exe"C:\Users\Admin\AppData\Local\Temp\04a1e3f2ec4ec3ae094a53b0798aa174403f146332111095a17a001e64eb11fb.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:4884
-
C:\Windows\Syswow64\b6e859ffC:\Windows\Syswow64\b6e859ff1⤵
- 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:4100
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\b6e859ff
- Size 832KB
- SHA256 8a26e60a87ce96b624937dad76ca45f987aef448e8a330de54738171764032a5
- MD5 847fa0befb29ad154337439bd911578e
- SHA1 ec09b64eb755b352bc4f96f5060f05e111592284
- SHA512 70c312032cd3ba27d9254b9e99ec22d3c72056b8e53318700854cf9bd97b01fc9364150240f06fe336baa07d7f777a322bc7fe26ae41ed8c288963d3e73a7dc3
- SSDEEP 12288:HSvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/Likr:yvO2xJKRw2kOkx2LFRvcUv
- TLSH T126055A31E6418036D1B34576C6FA0BBFE664BD25131155CBA3C4BA262FB36D2BA3170E
- MD5 SHA1 SHA512 SSDEEP TLSH