Analysis
- max time kernel
149s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
29/05/2026, 03:52
Behavioral task
behavioral1
Sample
c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe
Resource
win11-20260513-en
windows11-21h2-x64
10 signatures
150 seconds
General
- Target c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe
- Size 2.5MB
- Sample260529-ee3vlsct6n
- SHA256 c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662
- MD5 84885188bd53d82b02444be9ff658b97
- SHA1 93721a6f7ef7535276796ab61d24cd137bdb0a11
- SHA512 def0500d6733ffd53e20837e2539bcc895117732e06803ef090d6ab4cd0001a5f90640f56769ddb73a5f9c1829397b85a740427ecb4042b1a839206b4d30667e
- SSDEEP 49152:VHHKe2WQX56/OJdJCXDrsOFZMjHfUTGkQy5QZuTtN:VnKGEkOhCXHHFZMjHfUKkVWsT
- TLSH T1C9C58E31E6818136D1B3467186FA57BBA5247C211721A5CFA3C87A2A1F736D3AE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 1048 40f3052d - 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 11 223.5.5.5 5444 c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe Destination IP 1 114.114.114.114 5444 c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe Destination IP 2 223.5.5.5 5444 c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe Destination IP 10 114.114.114.114 5444 c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 40f3052d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 40f3052d File created C:\Windows\SysWOW64\40f3052d c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 40f3052d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 40f3052d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 40f3052d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 40f3052d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 40f3052d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 40f3052d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 40f3052d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 40f3052d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 40f3052d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 40f3052d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 40f3052d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 40f3052d -
resource yara_rule behavioral2/memory/5444-0-0x0000000000550000-0x00000000005DC000-memory.dmp upx behavioral2/files/0x0008000000025f4f-3.dat upx behavioral2/memory/1048-4-0x0000000000050000-0x00000000000DC000-memory.dmp upx behavioral2/memory/5444-10-0x0000000000550000-0x00000000005DC000-memory.dmp upx behavioral2/memory/1048-11-0x0000000000050000-0x00000000000DC000-memory.dmp upx behavioral2/memory/1048-32-0x0000000000050000-0x00000000000DC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\11f130 40f3052d File opened for modification C:\Windows\5d3408 c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.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 c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 40f3052d - 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\Content\CachePrefix 40f3052d Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 40f3052d Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 40f3052d Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 40f3052d Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 40f3052d Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 40f3052d Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 40f3052d Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 40f3052d Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 40f3052d - Modifies system certificate store 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\1F24C630CDA418EF2069FFAD4FDD5F463A1B69AA c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\1F24C630CDA418EF2069FFAD4FDD5F463A1B69AA\Blob = 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 c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 1048 40f3052d 1048 40f3052d 1048 40f3052d 1048 40f3052d 1048 40f3052d 1048 40f3052d 1048 40f3052d 1048 40f3052d 5444 c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe 5444 c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe 5444 c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe 5444 c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe 5444 c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe 5444 c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 5444 c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe Token: SeTcbPrivilege 5444 c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe Token: SeDebugPrivilege 1048 40f3052d Token: SeTcbPrivilege 1048 40f3052d
Processes
-
C:\Users\Admin\AppData\Local\Temp\c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe"C:\Users\Admin\AppData\Local\Temp\c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe"1⤵
- Unexpected DNS network traffic destination
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5444
-
C:\Windows\Syswow64\40f3052dC:\Windows\Syswow64\40f3052d1⤵
- 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:1048
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\40f3052d
- Size 2.5MB
- SHA256 20be40afc528c1292139d22d4ddac9598a5e2a153d2d45126761a3e7e7d93ed0
- MD5 0952bfe5dc9905bb9efcda71c242b65c
- SHA1 0dd122c40501b33fe83bfa64b816634bb41ad14c
- SHA512 cb22dfb3a32303c61fe159c9df4af02e268dc445aa0d5f869bfbe2c74757dc09b8326bb5147c4f9a7b812eff902b016fc7c7cfd64641f602eacf7a50743b39b1
- SSDEEP 49152:FHHKe2WQX56/OJdJCXDrsOFZMjHfUTGkQy5QZuTtN:FnKGEkOhCXHHFZMjHfUKkVWsT
- TLSH T150C58E31E6818136D1B34671C6FA57BBA5247C211721A5CFA3C87A2A1F736D3AE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH