Analysis
- max time kernel
149s - max time network
151s - 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, 03:46
Behavioral task
behavioral1
Sample
b165aff2f253be552f86deca42a67d808dadafcf818e5ae1af454015e1403e17.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target b165aff2f253be552f86deca42a67d808dadafcf818e5ae1af454015e1403e17.exe
- Size 761KB
- Sample260424-ebyrgsd15t
- SHA256 b165aff2f253be552f86deca42a67d808dadafcf818e5ae1af454015e1403e17
- MD5 8c00ccc774805bc81366c2e2cd0759fd
- SHA1 2296088cb3f2c48cf141b5cb404d153cabeafd93
- SHA512 0889b1e62a43db19d620b689528a08c69057a9078e372700ef0bbdd772df0d178ee181accdc629cec28d83874f21f6874ac21141bd491974530e0fa487e0a05c
- SSDEEP 12288:FSvO2x9mONvKRwLSFtsOkxHya5hYIW0p98B:kvO2xJKRw2kOkxSkW298B
- TLSH T1CAF49E35A2808036C0B34532C6F94AABF9797D35631565CBA3843B662F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4796 5dc9ec4e - 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 14 223.5.5.5 1464 b165aff2f253be552f86deca42a67d808dadafcf818e5ae1af454015e1403e17.exe Destination IP 1 114.114.114.114 1464 b165aff2f253be552f86deca42a67d808dadafcf818e5ae1af454015e1403e17.exe Destination IP 2 223.5.5.5 1464 b165aff2f253be552f86deca42a67d808dadafcf818e5ae1af454015e1403e17.exe Destination IP 13 114.114.114.114 1464 b165aff2f253be552f86deca42a67d808dadafcf818e5ae1af454015e1403e17.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 5dc9ec4e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 5dc9ec4e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 5dc9ec4e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 5dc9ec4e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 5dc9ec4e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C 5dc9ec4e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 5dc9ec4e File created C:\Windows\SysWOW64\5dc9ec4e b165aff2f253be552f86deca42a67d808dadafcf818e5ae1af454015e1403e17.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 5dc9ec4e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 5dc9ec4e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 5dc9ec4e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 5dc9ec4e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 5dc9ec4e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 5dc9ec4e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C 5dc9ec4e -
resource yara_rule behavioral2/memory/1464-0-0x0000000000BC0000-0x0000000000C4C000-memory.dmp upx behavioral2/files/0x001d00000002b2a0-2.dat upx behavioral2/memory/4796-3-0x00000000001D0000-0x000000000025C000-memory.dmp upx behavioral2/memory/1464-15-0x0000000000BC0000-0x0000000000C4C000-memory.dmp upx behavioral2/memory/4796-18-0x00000000001D0000-0x000000000025C000-memory.dmp upx behavioral2/memory/4796-43-0x00000000001D0000-0x000000000025C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\191070 b165aff2f253be552f86deca42a67d808dadafcf818e5ae1af454015e1403e17.exe File opened for modification C:\Windows\521bf8 5dc9ec4e - 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 b165aff2f253be552f86deca42a67d808dadafcf818e5ae1af454015e1403e17.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 5dc9ec4e - 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:" 5dc9ec4e Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 5dc9ec4e Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 5dc9ec4e Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 5dc9ec4e Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 5dc9ec4e Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 5dc9ec4e Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 5dc9ec4e Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 5dc9ec4e Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 5dc9ec4e - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4796 5dc9ec4e 4796 5dc9ec4e 4796 5dc9ec4e 4796 5dc9ec4e 4796 5dc9ec4e 4796 5dc9ec4e 4796 5dc9ec4e 4796 5dc9ec4e 1464 b165aff2f253be552f86deca42a67d808dadafcf818e5ae1af454015e1403e17.exe 1464 b165aff2f253be552f86deca42a67d808dadafcf818e5ae1af454015e1403e17.exe 1464 b165aff2f253be552f86deca42a67d808dadafcf818e5ae1af454015e1403e17.exe 1464 b165aff2f253be552f86deca42a67d808dadafcf818e5ae1af454015e1403e17.exe 1464 b165aff2f253be552f86deca42a67d808dadafcf818e5ae1af454015e1403e17.exe 1464 b165aff2f253be552f86deca42a67d808dadafcf818e5ae1af454015e1403e17.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1464 b165aff2f253be552f86deca42a67d808dadafcf818e5ae1af454015e1403e17.exe Token: SeTcbPrivilege 1464 b165aff2f253be552f86deca42a67d808dadafcf818e5ae1af454015e1403e17.exe Token: SeDebugPrivilege 4796 5dc9ec4e Token: SeTcbPrivilege 4796 5dc9ec4e
Processes
-
C:\Users\Admin\AppData\Local\Temp\b165aff2f253be552f86deca42a67d808dadafcf818e5ae1af454015e1403e17.exe"C:\Users\Admin\AppData\Local\Temp\b165aff2f253be552f86deca42a67d808dadafcf818e5ae1af454015e1403e17.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:1464
-
C:\Windows\Syswow64\5dc9ec4eC:\Windows\Syswow64\5dc9ec4e1⤵
- 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:4796
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\5dc9ec4e
- Size 761KB
- SHA256 513ec7ea1aeeda099e0e4dc6b8f2618b70e8ffcf98f30db5d8247b1a7487d821
- MD5 26943bb93a9645449eeff312f5ab805f
- SHA1 21a34206597fecaeda642d698a2fdc3b91552648
- SHA512 9fa546494f6f83d6f129442d72dea56c79978a1fd706f49d12a37da21e602e0d0d687c7a67d140a0c9419e7f552368607180bfa05aaf9654e45efe3865ec75e8
- SSDEEP 12288:GSvO2x9mONvKRwLSFtsOkxHya5hYIW0p98B:lvO2xJKRw2kOkxSkW298B
- TLSH T1B5F49E35A2808036C0B34532C6F94AABF9797D35631565CBA3843B662F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH