Analysis
- max time kernel
148s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
05/08/2026, 17:37
Behavioral task
behavioral1
Sample
b81f61219e4c7ab5ff1852f3edae33bd0d5e7653170b36db66b03d6ea4a27f07.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target b81f61219e4c7ab5ff1852f3edae33bd0d5e7653170b36db66b03d6ea4a27f07.exe
- Size 576KB
- Sample260805-v7cf5ascph
- SHA256 b81f61219e4c7ab5ff1852f3edae33bd0d5e7653170b36db66b03d6ea4a27f07
- MD5 fc2162b8c2f99b7c9601596d5d07fa5c
- SHA1 61ba5bb6466c9468d5ce49df9686793703bfea1f
- SHA512 85594ecbb32e61b744cdce3aac52c06d16cd66e52ac8319300ab3363c7dc8b43e7f9aeda3a820445eb1248e6d54c30ff90b27b102488adf74859a9ec7099f738
- SSDEEP 6144:ccTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8K/:cSvO2x9mONvKRwLSFtsOkx2LIa+yx
- TLSH T10CC46D26B6908072C4779578C4A257AAFBB1BC2127204ACFA390775A1F737D2BE3570D
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 5568 52d94328 - Unexpected DNS network traffic destination 6 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 4 114.114.114.114 3164 b81f61219e4c7ab5ff1852f3edae33bd0d5e7653170b36db66b03d6ea4a27f07.exe Destination IP 6 223.5.5.5 3164 b81f61219e4c7ab5ff1852f3edae33bd0d5e7653170b36db66b03d6ea4a27f07.exe Destination IP 21 114.114.114.114 3164 b81f61219e4c7ab5ff1852f3edae33bd0d5e7653170b36db66b03d6ea4a27f07.exe Destination IP 22 223.5.5.5 3164 b81f61219e4c7ab5ff1852f3edae33bd0d5e7653170b36db66b03d6ea4a27f07.exe Destination IP 63 114.114.114.114 3164 b81f61219e4c7ab5ff1852f3edae33bd0d5e7653170b36db66b03d6ea4a27f07.exe Destination IP 64 223.5.5.5 3164 b81f61219e4c7ab5ff1852f3edae33bd0d5e7653170b36db66b03d6ea4a27f07.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 52d94328 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 52d94328 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 52d94328 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 52d94328 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 52d94328 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 52d94328 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 52d94328 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 52d94328 File created C:\Windows\SysWOW64\52d94328 b81f61219e4c7ab5ff1852f3edae33bd0d5e7653170b36db66b03d6ea4a27f07.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 52d94328 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 52d94328 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 52d94328 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 52d94328 -
resource yara_rule behavioral2/memory/3164-0-0x00000000008D0000-0x000000000095C000-memory.dmp upx behavioral2/files/0x000b00000001136a-2.dat upx behavioral2/memory/5568-3-0x0000000000A60000-0x0000000000AEC000-memory.dmp upx behavioral2/memory/3164-16-0x00000000008D0000-0x000000000095C000-memory.dmp upx behavioral2/memory/5568-17-0x0000000000A60000-0x0000000000AEC000-memory.dmp upx behavioral2/memory/5568-28-0x0000000000A60000-0x0000000000AEC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\5f5380 52d94328 File opened for modification C:\Windows\362b38 b81f61219e4c7ab5ff1852f3edae33bd0d5e7653170b36db66b03d6ea4a27f07.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 b81f61219e4c7ab5ff1852f3edae33bd0d5e7653170b36db66b03d6ea4a27f07.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 52d94328 - 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\Cookies\CachePrefix = "Cookie:" 52d94328 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 52d94328 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 52d94328 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 52d94328 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 52d94328 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 52d94328 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 52d94328 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 52d94328 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 52d94328 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 5568 52d94328 5568 52d94328 5568 52d94328 5568 52d94328 5568 52d94328 5568 52d94328 5568 52d94328 5568 52d94328 3164 b81f61219e4c7ab5ff1852f3edae33bd0d5e7653170b36db66b03d6ea4a27f07.exe 3164 b81f61219e4c7ab5ff1852f3edae33bd0d5e7653170b36db66b03d6ea4a27f07.exe 3164 b81f61219e4c7ab5ff1852f3edae33bd0d5e7653170b36db66b03d6ea4a27f07.exe 3164 b81f61219e4c7ab5ff1852f3edae33bd0d5e7653170b36db66b03d6ea4a27f07.exe 3164 b81f61219e4c7ab5ff1852f3edae33bd0d5e7653170b36db66b03d6ea4a27f07.exe 3164 b81f61219e4c7ab5ff1852f3edae33bd0d5e7653170b36db66b03d6ea4a27f07.exe 3164 b81f61219e4c7ab5ff1852f3edae33bd0d5e7653170b36db66b03d6ea4a27f07.exe 3164 b81f61219e4c7ab5ff1852f3edae33bd0d5e7653170b36db66b03d6ea4a27f07.exe 3164 b81f61219e4c7ab5ff1852f3edae33bd0d5e7653170b36db66b03d6ea4a27f07.exe 3164 b81f61219e4c7ab5ff1852f3edae33bd0d5e7653170b36db66b03d6ea4a27f07.exe 3164 b81f61219e4c7ab5ff1852f3edae33bd0d5e7653170b36db66b03d6ea4a27f07.exe 3164 b81f61219e4c7ab5ff1852f3edae33bd0d5e7653170b36db66b03d6ea4a27f07.exe 3164 b81f61219e4c7ab5ff1852f3edae33bd0d5e7653170b36db66b03d6ea4a27f07.exe 3164 b81f61219e4c7ab5ff1852f3edae33bd0d5e7653170b36db66b03d6ea4a27f07.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3164 b81f61219e4c7ab5ff1852f3edae33bd0d5e7653170b36db66b03d6ea4a27f07.exe Token: SeTcbPrivilege 3164 b81f61219e4c7ab5ff1852f3edae33bd0d5e7653170b36db66b03d6ea4a27f07.exe Token: SeDebugPrivilege 5568 52d94328 Token: SeTcbPrivilege 5568 52d94328
Processes
-
C:\Users\Admin\AppData\Local\Temp\b81f61219e4c7ab5ff1852f3edae33bd0d5e7653170b36db66b03d6ea4a27f07.exe"C:\Users\Admin\AppData\Local\Temp\b81f61219e4c7ab5ff1852f3edae33bd0d5e7653170b36db66b03d6ea4a27f07.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:3164
-
C:\Windows\Syswow64\52d94328C:\Windows\Syswow64\52d943281⤵
- 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:5568
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\52d94328
- Size 576KB
- SHA256 0917a8cf2cf1d5dfa1494e2004718cec3e347fdd28d823da663f1c490d067886
- MD5 0a340221a2d446af3d35ab097ae656c4
- SHA1 41c5432b9cf4615d63346d2d697ab2f777e63b07
- SHA512 e38ecd56f93a29cf60ae0cacefa2a2f9216fb647307f55fc691d47bc891514e5a5a309497df47bda3803bb871d3b7c555b1f7e3bc4aea8be73b776c5464393d5
- SSDEEP 6144:YcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8K/:YSvO2x9mONvKRwLSFtsOkx2LIa+yx
- TLSH T179C46D26B6908072C4779578C4A257AAFBB1BC2127204ACFA390775A1F737D2BE3570D
- MD5 SHA1 SHA512 SSDEEP TLSH