Analysis
- max time kernel
148s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
06/09/2026, 18:11
Behavioral task
behavioral1
Sample
bd42efb8a16664104ac8774602aa7496abfc7a340994dd4f9a6df6c7631d58af.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target bd42efb8a16664104ac8774602aa7496abfc7a340994dd4f9a6df6c7631d58af.exe
- Size 548KB
- Sample260906-wsv6cszbrb
- SHA256 bd42efb8a16664104ac8774602aa7496abfc7a340994dd4f9a6df6c7631d58af
- MD5 da3459d82624327ec37a7615cf1f82a6
- SHA1 afbb12ca10e702a0c587e7fb38d1f38f75451010
- SHA512 6ffc5a665957990ae1c1853d8a9bcbf74b606a2b8847c152fd31bf05cec389c1fdd6d1694fb49b7dce49f5ae1770e43a55bca9c3b8b9f6b997117291c691e6c8
- SSDEEP 12288:AkbOgbKcMoxy9RLW3uqXUHkUXe39+Okx2LIa:BbOgbEqy9RKejHPOwOkx2LF
- TLSH T15BC4AE26F6A0C032C4B79574C4A34AAAFBB1742167204ACFA395475A1F737E2BE3531D
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 932 76e31e00 - 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 3220 bd42efb8a16664104ac8774602aa7496abfc7a340994dd4f9a6df6c7631d58af.exe Destination IP 2 223.5.5.5 3220 bd42efb8a16664104ac8774602aa7496abfc7a340994dd4f9a6df6c7631d58af.exe Destination IP 13 114.114.114.114 3220 bd42efb8a16664104ac8774602aa7496abfc7a340994dd4f9a6df6c7631d58af.exe Destination IP 14 223.5.5.5 3220 bd42efb8a16664104ac8774602aa7496abfc7a340994dd4f9a6df6c7631d58af.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 76e31e00 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 76e31e00 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 76e31e00 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 76e31e00 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 76e31e00 File created C:\Windows\SysWOW64\76e31e00 bd42efb8a16664104ac8774602aa7496abfc7a340994dd4f9a6df6c7631d58af.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 76e31e00 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 76e31e00 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 76e31e00 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 76e31e00 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 76e31e00 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 76e31e00 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 76e31e00 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 76e31e00 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 76e31e00 -
resource yara_rule behavioral2/memory/3220-0-0x0000000000630000-0x00000000006B9000-memory.dmp upx behavioral2/files/0x000700000001b86d-2.dat upx behavioral2/memory/932-3-0x00000000007D0000-0x0000000000859000-memory.dmp upx behavioral2/memory/3220-10-0x0000000000630000-0x00000000006B9000-memory.dmp upx behavioral2/memory/932-12-0x00000000007D0000-0x0000000000859000-memory.dmp upx behavioral2/memory/932-22-0x00000000007D0000-0x0000000000859000-memory.dmp upx behavioral2/memory/3220-39-0x0000000000630000-0x00000000006B9000-memory.dmp upx behavioral2/memory/932-40-0x00000000007D0000-0x0000000000859000-memory.dmp upx behavioral2/memory/932-42-0x00000000007D0000-0x0000000000859000-memory.dmp upx behavioral2/memory/3220-51-0x0000000000630000-0x00000000006B9000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\ff4c8 76e31e00 File opened for modification C:\Windows\3720a8 bd42efb8a16664104ac8774602aa7496abfc7a340994dd4f9a6df6c7631d58af.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 bd42efb8a16664104ac8774602aa7496abfc7a340994dd4f9a6df6c7631d58af.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 76e31e00 - 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\History\CachePrefix = "Visited:" 76e31e00 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 76e31e00 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 76e31e00 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 76e31e00 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 76e31e00 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 76e31e00 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 76e31e00 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 76e31e00 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 76e31e00 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 932 76e31e00 932 76e31e00 932 76e31e00 932 76e31e00 932 76e31e00 932 76e31e00 932 76e31e00 932 76e31e00 3220 bd42efb8a16664104ac8774602aa7496abfc7a340994dd4f9a6df6c7631d58af.exe 3220 bd42efb8a16664104ac8774602aa7496abfc7a340994dd4f9a6df6c7631d58af.exe 3220 bd42efb8a16664104ac8774602aa7496abfc7a340994dd4f9a6df6c7631d58af.exe 3220 bd42efb8a16664104ac8774602aa7496abfc7a340994dd4f9a6df6c7631d58af.exe 3220 bd42efb8a16664104ac8774602aa7496abfc7a340994dd4f9a6df6c7631d58af.exe 3220 bd42efb8a16664104ac8774602aa7496abfc7a340994dd4f9a6df6c7631d58af.exe 3220 bd42efb8a16664104ac8774602aa7496abfc7a340994dd4f9a6df6c7631d58af.exe 3220 bd42efb8a16664104ac8774602aa7496abfc7a340994dd4f9a6df6c7631d58af.exe 3220 bd42efb8a16664104ac8774602aa7496abfc7a340994dd4f9a6df6c7631d58af.exe 3220 bd42efb8a16664104ac8774602aa7496abfc7a340994dd4f9a6df6c7631d58af.exe 3220 bd42efb8a16664104ac8774602aa7496abfc7a340994dd4f9a6df6c7631d58af.exe 3220 bd42efb8a16664104ac8774602aa7496abfc7a340994dd4f9a6df6c7631d58af.exe 3220 bd42efb8a16664104ac8774602aa7496abfc7a340994dd4f9a6df6c7631d58af.exe 3220 bd42efb8a16664104ac8774602aa7496abfc7a340994dd4f9a6df6c7631d58af.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3220 bd42efb8a16664104ac8774602aa7496abfc7a340994dd4f9a6df6c7631d58af.exe Token: SeTcbPrivilege 3220 bd42efb8a16664104ac8774602aa7496abfc7a340994dd4f9a6df6c7631d58af.exe Token: SeDebugPrivilege 932 76e31e00 Token: SeTcbPrivilege 932 76e31e00
Processes
-
C:\Users\Admin\AppData\Local\Temp\bd42efb8a16664104ac8774602aa7496abfc7a340994dd4f9a6df6c7631d58af.exe"C:\Users\Admin\AppData\Local\Temp\bd42efb8a16664104ac8774602aa7496abfc7a340994dd4f9a6df6c7631d58af.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:3220
-
C:\Windows\Syswow64\76e31e00C:\Windows\Syswow64\76e31e001⤵
- 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:932
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\76e31e00
- Size 548KB
- SHA256 3748f199e8e6c62916ef3d7f1804fd8416c5a5568362fe1ced605282c1e20fa5
- MD5 c72307a69a21582c6776a7116a6c5c78
- SHA1 b4047e2ae65c7a9229d7407fc5c907f9afd394e6
- SHA512 373038a8233c486769e137d45f1d65967937b7713257087b9f0e7c177f2f96bfc0b187e296e9b93ec9ed02ffecb99a22c043af5f36549c6b6474f3c0d5f523aa
- SSDEEP 12288:6kbOgbKcMoxy9RLW3uqXUHkUXe39+Okx2LIa:LbOgbEqy9RKejHPOwOkx2LF
- TLSH T154C4AE26F6A0C032C4B79574C4A34AAAFBB1742167204ACFA395475A1F737E2BE3531D
- MD5 SHA1 SHA512 SSDEEP TLSH