Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
08/05/2026, 21:29
Behavioral task
behavioral1
Sample
f4b6944cc2e624ee54bc2af4b6cb9d852db6152ad477cfbcffb172f039f7a53b.exe
Resource
win10v2004-20260130-en
9 signatures
150 seconds
General
- Target f4b6944cc2e624ee54bc2af4b6cb9d852db6152ad477cfbcffb172f039f7a53b.exe
- Size 830KB
- Sample260508-1b52fsev2x
- SHA256 f4b6944cc2e624ee54bc2af4b6cb9d852db6152ad477cfbcffb172f039f7a53b
- MD5 ce94cfa536c4a3356321f9face559eed
- SHA1 cbacaedcb77efbbe7360ce802fbbf63188d8bf57
- SHA512 c1871f537150a409af53ce21ce26abee90af8cd0f17ad4aad6878059038b308de33be6cbb5bdf96116eb2caf2dab66e3c0529542b7778d35ff9bdfb00acd87ac
- SSDEEP 12288:uSvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/Lik8CQ3K:NvO2xJKRw2kOkx2LFRvcUQPK
- TLSH T1DA055A31E641C03AD0A74575C6FA4BBFE964BD25131165CBA3C43A262FB36D2BA3170E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4916 4500a35a - 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 3 114.114.114.114 1200 f4b6944cc2e624ee54bc2af4b6cb9d852db6152ad477cfbcffb172f039f7a53b.exe Destination IP 4 223.5.5.5 1200 f4b6944cc2e624ee54bc2af4b6cb9d852db6152ad477cfbcffb172f039f7a53b.exe Destination IP 22 114.114.114.114 1200 f4b6944cc2e624ee54bc2af4b6cb9d852db6152ad477cfbcffb172f039f7a53b.exe Destination IP 23 223.5.5.5 1200 f4b6944cc2e624ee54bc2af4b6cb9d852db6152ad477cfbcffb172f039f7a53b.exe - Drops file in System32 directory 5 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 4500a35a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 4500a35a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 4500a35a File created C:\Windows\SysWOW64\4500a35a f4b6944cc2e624ee54bc2af4b6cb9d852db6152ad477cfbcffb172f039f7a53b.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 4500a35a -
resource yara_rule behavioral1/memory/1200-0-0x0000000000320000-0x00000000003AC000-memory.dmp upx behavioral1/memory/4916-4-0x0000000000D00000-0x0000000000D8C000-memory.dmp upx behavioral1/files/0x00140000000241a4-3.dat upx behavioral1/memory/1200-10-0x0000000000320000-0x00000000003AC000-memory.dmp upx behavioral1/memory/4916-15-0x0000000000D00000-0x0000000000D8C000-memory.dmp upx behavioral1/memory/4916-42-0x0000000000D00000-0x0000000000D8C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\5429e8 4500a35a File opened for modification C:\Windows\148b60 f4b6944cc2e624ee54bc2af4b6cb9d852db6152ad477cfbcffb172f039f7a53b.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 f4b6944cc2e624ee54bc2af4b6cb9d852db6152ad477cfbcffb172f039f7a53b.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 4500a35a - Modifies data under HKEY_USERS 8 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 4500a35a Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 4500a35a Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 4500a35a Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 4500a35a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 4500a35a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 4500a35a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 4500a35a Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 4500a35a - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4916 4500a35a 4916 4500a35a 4916 4500a35a 4916 4500a35a 4916 4500a35a 4916 4500a35a 4916 4500a35a 4916 4500a35a 1200 f4b6944cc2e624ee54bc2af4b6cb9d852db6152ad477cfbcffb172f039f7a53b.exe 1200 f4b6944cc2e624ee54bc2af4b6cb9d852db6152ad477cfbcffb172f039f7a53b.exe 1200 f4b6944cc2e624ee54bc2af4b6cb9d852db6152ad477cfbcffb172f039f7a53b.exe 1200 f4b6944cc2e624ee54bc2af4b6cb9d852db6152ad477cfbcffb172f039f7a53b.exe 1200 f4b6944cc2e624ee54bc2af4b6cb9d852db6152ad477cfbcffb172f039f7a53b.exe 1200 f4b6944cc2e624ee54bc2af4b6cb9d852db6152ad477cfbcffb172f039f7a53b.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1200 f4b6944cc2e624ee54bc2af4b6cb9d852db6152ad477cfbcffb172f039f7a53b.exe Token: SeTcbPrivilege 1200 f4b6944cc2e624ee54bc2af4b6cb9d852db6152ad477cfbcffb172f039f7a53b.exe Token: SeDebugPrivilege 4916 4500a35a Token: SeTcbPrivilege 4916 4500a35a
Processes
-
C:\Users\Admin\AppData\Local\Temp\f4b6944cc2e624ee54bc2af4b6cb9d852db6152ad477cfbcffb172f039f7a53b.exe"C:\Users\Admin\AppData\Local\Temp\f4b6944cc2e624ee54bc2af4b6cb9d852db6152ad477cfbcffb172f039f7a53b.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:1200
-
C:\Windows\Syswow64\4500a35aC:\Windows\Syswow64\4500a35a1⤵
- 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:4916
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\4500a35a
- Size 830KB
- SHA256 e523ec3fc6c2bb5b0cd59c5d62a519ccaca6547f5de372ed571d80db6d8cdba0
- MD5 d92e44cdd19d148acf0a45441e77d238
- SHA1 0408cae7d045eaeaf5adba11568b3247394b7139
- SHA512 3731b0b76410dacfc124da47a5415a31c0e89a8610a07adbb7532fc54bc82090665e2e4f272c3753d1d55cae6e4516d8a84d2c709b1b389dafd51c95bda93c9d
- SSDEEP 12288:BSvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/Lik8CQ3K:IvO2xJKRw2kOkx2LFRvcUQPK
- TLSH T10E055A31E641C03AD0A74575C6FA4BBFE964BD25131165CBA3C43A262FB36D2BA3170E
- MD5 SHA1 SHA512 SSDEEP TLSH