Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
12/07/2026, 19:54
Behavioral task
behavioral1
Sample
23931d458af08cef945170975d1a9e3f165cb55d62be1e67a761edd668ac521e.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 23931d458af08cef945170975d1a9e3f165cb55d62be1e67a761edd668ac521e.exe
- Size 525KB
- Sample260712-ymr8maas21
- SHA256 23931d458af08cef945170975d1a9e3f165cb55d62be1e67a761edd668ac521e
- MD5 169e8fe80989848f9aebba75e8fd1bd0
- SHA1 8d14d60ffa9ef55287414a39e1bce98658fbbee1
- SHA512 402ba9296be7ee9d0791d41874db468ef8b410b6fc0bb98b5101b1ad49f85a443bcb56d4cac8d50373185b7ddb1a8c097504c54ac0334c19d2847b1615ace5d0
- SSDEEP 6144:fcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8K:fSvO2x9mONvKRwLSFtsOkx2LIa+y
- TLSH T10BB47D2AB6A0D076C4779579C4A257BAFBB1742137204ACFA390475A1F237E2BE3530D
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 3824 8f82cb1c - 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 4 223.5.5.5 1672 23931d458af08cef945170975d1a9e3f165cb55d62be1e67a761edd668ac521e.exe Destination IP 40 114.114.114.114 1672 23931d458af08cef945170975d1a9e3f165cb55d62be1e67a761edd668ac521e.exe Destination IP 41 223.5.5.5 1672 23931d458af08cef945170975d1a9e3f165cb55d62be1e67a761edd668ac521e.exe Destination IP 3 114.114.114.114 1672 23931d458af08cef945170975d1a9e3f165cb55d62be1e67a761edd668ac521e.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 8f82cb1c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 8f82cb1c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 8f82cb1c File created C:\Windows\SysWOW64\8f82cb1c 23931d458af08cef945170975d1a9e3f165cb55d62be1e67a761edd668ac521e.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 8f82cb1c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 8f82cb1c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 8f82cb1c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 8f82cb1c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 8f82cb1c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 8f82cb1c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 8f82cb1c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 8f82cb1c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 8f82cb1c -
resource yara_rule behavioral1/memory/1672-0-0x0000000000DC0000-0x0000000000E4C000-memory.dmp upx behavioral1/files/0x0032000000023aa5-2.dat upx behavioral1/memory/3824-3-0x0000000000AB0000-0x0000000000B3C000-memory.dmp upx behavioral1/memory/1672-16-0x0000000000DC0000-0x0000000000E4C000-memory.dmp upx behavioral1/memory/3824-17-0x0000000000AB0000-0x0000000000B3C000-memory.dmp upx behavioral1/memory/3824-25-0x0000000000AB0000-0x0000000000B3C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\4177e0 8f82cb1c File opened for modification C:\Windows\1ca010 23931d458af08cef945170975d1a9e3f165cb55d62be1e67a761edd668ac521e.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 23931d458af08cef945170975d1a9e3f165cb55d62be1e67a761edd668ac521e.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 8f82cb1c - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 8f82cb1c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 8f82cb1c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 8f82cb1c Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 8f82cb1c Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 8f82cb1c Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 8f82cb1c Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 8f82cb1c Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 8f82cb1c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 8f82cb1c - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 3824 8f82cb1c 3824 8f82cb1c 3824 8f82cb1c 3824 8f82cb1c 3824 8f82cb1c 3824 8f82cb1c 3824 8f82cb1c 3824 8f82cb1c 1672 23931d458af08cef945170975d1a9e3f165cb55d62be1e67a761edd668ac521e.exe 1672 23931d458af08cef945170975d1a9e3f165cb55d62be1e67a761edd668ac521e.exe 1672 23931d458af08cef945170975d1a9e3f165cb55d62be1e67a761edd668ac521e.exe 1672 23931d458af08cef945170975d1a9e3f165cb55d62be1e67a761edd668ac521e.exe 1672 23931d458af08cef945170975d1a9e3f165cb55d62be1e67a761edd668ac521e.exe 1672 23931d458af08cef945170975d1a9e3f165cb55d62be1e67a761edd668ac521e.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1672 23931d458af08cef945170975d1a9e3f165cb55d62be1e67a761edd668ac521e.exe Token: SeTcbPrivilege 1672 23931d458af08cef945170975d1a9e3f165cb55d62be1e67a761edd668ac521e.exe Token: SeDebugPrivilege 3824 8f82cb1c Token: SeTcbPrivilege 3824 8f82cb1c
Processes
-
C:\Users\Admin\AppData\Local\Temp\23931d458af08cef945170975d1a9e3f165cb55d62be1e67a761edd668ac521e.exe"C:\Users\Admin\AppData\Local\Temp\23931d458af08cef945170975d1a9e3f165cb55d62be1e67a761edd668ac521e.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:1672
-
C:\Windows\Syswow64\8f82cb1cC:\Windows\Syswow64\8f82cb1c1⤵
- 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:3824
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\8f82cb1c
- Size 525KB
- SHA256 287b1c199c38c7a997769ec80868eb8c30b2a203415b43c5795a70cf03cbbf9d
- MD5 a1bf86bebc5578274dad21dbc86b4589
- SHA1 c5a93cbc71f0cd1a74de38a1fd6f479459148db2
- SHA512 617d4b8f3824758333bbb7fb8f7018ba9bad31bcb01e7589e67050bb5db42a018a11b06963d35b40f0505e39335a4b7307ff4f6c648d6a5236f4157f919e0b53
- SSDEEP 6144:+cTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8K:+SvO2x9mONvKRwLSFtsOkx2LIa+y
- TLSH T1A5B47D2AB6A0D076C4779579C4A257BAFBB1742137204ACFA390475A1F237E2BE3530D
- MD5 SHA1 SHA512 SSDEEP TLSH