Analysis
- max time kernel
149s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
24/04/2026, 22:30
Behavioral task
behavioral1
Sample
256a8a811639be8466e55307e96c36455bc1e1a05d057787be235000c3d12a31.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 256a8a811639be8466e55307e96c36455bc1e1a05d057787be235000c3d12a31.exe
- Size 548KB
- Sample260424-2etm9set7n
- SHA256 256a8a811639be8466e55307e96c36455bc1e1a05d057787be235000c3d12a31
- MD5 e08eeed5c3d0b4359ed981fcdec1e33b
- SHA1 b9305751c9cc45a140b0a78c1c11bd0732d4736f
- SHA512 ded099ecb58658194b2c0be708a4158d8f7b74f29b7d739a58e74e7a03bae27c3cbd81cec513bd8f92191bb242f39cb1b423dd93e9dd32683a06fcf54251e651
- SSDEEP 6144:7l51orRJXlDixHkUXe35rlcEOkCybEaQRXr9HNdvOa:9qXUHkUXe39VOkx2LIa
- TLSH T161C4BF5BF2744076C49BD678C9935A9AFBF1B815872143CF1320825A1F737E2AE3A325
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 5104 13b97b8e - 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 4204 256a8a811639be8466e55307e96c36455bc1e1a05d057787be235000c3d12a31.exe Destination IP 2 223.5.5.5 4204 256a8a811639be8466e55307e96c36455bc1e1a05d057787be235000c3d12a31.exe Destination IP 13 114.114.114.114 4204 256a8a811639be8466e55307e96c36455bc1e1a05d057787be235000c3d12a31.exe Destination IP 14 223.5.5.5 4204 256a8a811639be8466e55307e96c36455bc1e1a05d057787be235000c3d12a31.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\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 13b97b8e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 13b97b8e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 13b97b8e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 13b97b8e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 13b97b8e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 13b97b8e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 13b97b8e File created C:\Windows\SysWOW64\13b97b8e 256a8a811639be8466e55307e96c36455bc1e1a05d057787be235000c3d12a31.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 13b97b8e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 13b97b8e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 13b97b8e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 13b97b8e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 13b97b8e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 13b97b8e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 13b97b8e -
resource yara_rule behavioral2/memory/4204-0-0x0000000000070000-0x00000000000F9000-memory.dmp upx behavioral2/files/0x001d00000002b1ad-2.dat upx behavioral2/memory/5104-3-0x0000000000F80000-0x0000000001009000-memory.dmp upx behavioral2/memory/4204-18-0x0000000000070000-0x00000000000F9000-memory.dmp upx behavioral2/memory/5104-20-0x0000000000F80000-0x0000000001009000-memory.dmp upx behavioral2/memory/5104-24-0x0000000000F80000-0x0000000001009000-memory.dmp upx behavioral2/memory/4204-32-0x0000000000070000-0x00000000000F9000-memory.dmp upx behavioral2/memory/5104-33-0x0000000000F80000-0x0000000001009000-memory.dmp upx behavioral2/memory/4204-44-0x0000000000070000-0x00000000000F9000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\5761e0 13b97b8e File opened for modification C:\Windows\47f958 256a8a811639be8466e55307e96c36455bc1e1a05d057787be235000c3d12a31.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 256a8a811639be8466e55307e96c36455bc1e1a05d057787be235000c3d12a31.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 13b97b8e - 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 13b97b8e Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 13b97b8e Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 13b97b8e Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 13b97b8e Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 13b97b8e Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 13b97b8e Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 13b97b8e Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 13b97b8e Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 13b97b8e - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 5104 13b97b8e 5104 13b97b8e 5104 13b97b8e 5104 13b97b8e 5104 13b97b8e 5104 13b97b8e 5104 13b97b8e 5104 13b97b8e 4204 256a8a811639be8466e55307e96c36455bc1e1a05d057787be235000c3d12a31.exe 4204 256a8a811639be8466e55307e96c36455bc1e1a05d057787be235000c3d12a31.exe 4204 256a8a811639be8466e55307e96c36455bc1e1a05d057787be235000c3d12a31.exe 4204 256a8a811639be8466e55307e96c36455bc1e1a05d057787be235000c3d12a31.exe 4204 256a8a811639be8466e55307e96c36455bc1e1a05d057787be235000c3d12a31.exe 4204 256a8a811639be8466e55307e96c36455bc1e1a05d057787be235000c3d12a31.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4204 256a8a811639be8466e55307e96c36455bc1e1a05d057787be235000c3d12a31.exe Token: SeTcbPrivilege 4204 256a8a811639be8466e55307e96c36455bc1e1a05d057787be235000c3d12a31.exe Token: SeDebugPrivilege 5104 13b97b8e Token: SeTcbPrivilege 5104 13b97b8e
Processes
-
C:\Users\Admin\AppData\Local\Temp\256a8a811639be8466e55307e96c36455bc1e1a05d057787be235000c3d12a31.exe"C:\Users\Admin\AppData\Local\Temp\256a8a811639be8466e55307e96c36455bc1e1a05d057787be235000c3d12a31.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:4204
-
C:\Windows\Syswow64\13b97b8eC:\Windows\Syswow64\13b97b8e1⤵
- 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:5104
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\13b97b8e
- Size 548KB
- SHA256 2fa2a7a0af301464edfbe59a0552b64213d65c79e1a9d68761385f752c8f0d40
- MD5 d7c92f7e2ada66b4e2491a5fca573f49
- SHA1 b89b07c758c1606ef37215a1a8620892574d94ed
- SHA512 2196b259e6ced373895e500b39e690ded2b64bae07c53134c9ecdcd6a6c4888e6ff3cacdff36c2ac2f6ec96bae5df5c6719f7e0e9122cb19a969780180fa8ff9
- SSDEEP 6144:8l51orRJXlDixHkUXe35rlcEOkCybEaQRXr9HNdvOa:gqXUHkUXe39VOkx2LIa
- TLSH T147C4BF5BF2744076C49BD678C9935A9AFBF1B815872143CF1320825A1F737E2AE3A325
- MD5 SHA1 SHA512 SSDEEP TLSH