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
15/04/2026, 20:30
Behavioral task
behavioral1
Sample
f957ce1aa173d6d086a2887fc279f80ca3428e46c6846d657041adbaa5315b3d.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
10 signatures
150 seconds
Behavioral task
behavioral2
Sample
f957ce1aa173d6d086a2887fc279f80ca3428e46c6846d657041adbaa5315b3d.exe
Resource
win11-20260130-en
windows11-21h2-x64
10 signatures
150 seconds
General
- Target f957ce1aa173d6d086a2887fc279f80ca3428e46c6846d657041adbaa5315b3d.exe
- Size 766KB
- Sample260415-zaemfacs2t
- SHA256 f957ce1aa173d6d086a2887fc279f80ca3428e46c6846d657041adbaa5315b3d
- MD5 f19cbd0e4c285318b750690a974c7267
- SHA1 699f534c09a8075b22d0faf2f28a2f3239269772
- SHA512 5e3212599746080dead7e5c109bdd8482c91c0da72b1bd1c0ba041a3a1486395ec56996837248c3ef2002d85a7c12b6b29860a8796595cdfde8b534d411668b8
- SSDEEP 12288:nSvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/Liw:SvO2xJKRw2kOkx2LFRvcUV
- TLSH T115F45A31E241C03AD0A74576C6FA0BAFE564BD25531155CBA3C43A6A2FB36D2BE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4904 25bd6519 - 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 4504 f957ce1aa173d6d086a2887fc279f80ca3428e46c6846d657041adbaa5315b3d.exe Destination IP 2 223.5.5.5 4504 f957ce1aa173d6d086a2887fc279f80ca3428e46c6846d657041adbaa5315b3d.exe Destination IP 23 114.114.114.114 4504 f957ce1aa173d6d086a2887fc279f80ca3428e46c6846d657041adbaa5315b3d.exe Destination IP 24 223.5.5.5 4504 f957ce1aa173d6d086a2887fc279f80ca3428e46c6846d657041adbaa5315b3d.exe - Drops file in System32 directory 17 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 25bd6519 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 25bd6519 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 25bd6519 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\AAD646CB44373074ADE741C38400E7E1 25bd6519 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 25bd6519 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 25bd6519 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 25bd6519 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 25bd6519 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 25bd6519 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 25bd6519 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\AAD646CB44373074ADE741C38400E7E1 25bd6519 File created C:\Windows\SysWOW64\25bd6519 f957ce1aa173d6d086a2887fc279f80ca3428e46c6846d657041adbaa5315b3d.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 25bd6519 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 25bd6519 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 25bd6519 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 25bd6519 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 25bd6519 -
resource yara_rule behavioral2/memory/4504-0-0x0000000000710000-0x000000000079C000-memory.dmp upx behavioral2/files/0x002300000002b086-2.dat upx behavioral2/memory/4904-4-0x0000000000A70000-0x0000000000AFC000-memory.dmp upx behavioral2/memory/4504-12-0x0000000000710000-0x000000000079C000-memory.dmp upx behavioral2/memory/4904-13-0x0000000000A70000-0x0000000000AFC000-memory.dmp upx behavioral2/memory/4904-32-0x0000000000A70000-0x0000000000AFC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\53f550 25bd6519 File opened for modification C:\Windows\4d1c30 f957ce1aa173d6d086a2887fc279f80ca3428e46c6846d657041adbaa5315b3d.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 f957ce1aa173d6d086a2887fc279f80ca3428e46c6846d657041adbaa5315b3d.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 25bd6519 - 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" 25bd6519 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 25bd6519 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 25bd6519 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 25bd6519 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 25bd6519 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 25bd6519 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 25bd6519 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 25bd6519 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 25bd6519 - Modifies system certificate store 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\1F24C630CDA418EF2069FFAD4FDD5F463A1B69AA 25bd6519 Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\1F24C630CDA418EF2069FFAD4FDD5F463A1B69AA\Blob = 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 25bd6519 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4904 25bd6519 4904 25bd6519 4904 25bd6519 4904 25bd6519 4904 25bd6519 4904 25bd6519 4904 25bd6519 4904 25bd6519 4504 f957ce1aa173d6d086a2887fc279f80ca3428e46c6846d657041adbaa5315b3d.exe 4504 f957ce1aa173d6d086a2887fc279f80ca3428e46c6846d657041adbaa5315b3d.exe 4504 f957ce1aa173d6d086a2887fc279f80ca3428e46c6846d657041adbaa5315b3d.exe 4504 f957ce1aa173d6d086a2887fc279f80ca3428e46c6846d657041adbaa5315b3d.exe 4504 f957ce1aa173d6d086a2887fc279f80ca3428e46c6846d657041adbaa5315b3d.exe 4504 f957ce1aa173d6d086a2887fc279f80ca3428e46c6846d657041adbaa5315b3d.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4504 f957ce1aa173d6d086a2887fc279f80ca3428e46c6846d657041adbaa5315b3d.exe Token: SeTcbPrivilege 4504 f957ce1aa173d6d086a2887fc279f80ca3428e46c6846d657041adbaa5315b3d.exe Token: SeDebugPrivilege 4904 25bd6519 Token: SeTcbPrivilege 4904 25bd6519
Processes
-
C:\Users\Admin\AppData\Local\Temp\f957ce1aa173d6d086a2887fc279f80ca3428e46c6846d657041adbaa5315b3d.exe"C:\Users\Admin\AppData\Local\Temp\f957ce1aa173d6d086a2887fc279f80ca3428e46c6846d657041adbaa5315b3d.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:4504
-
C:\Windows\Syswow64\25bd6519C:\Windows\Syswow64\25bd65191⤵
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4904
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\25bd6519
- Size 766KB
- SHA256 37055f185848aa90499ec8a98c1d9e9b474689d200f7146676d2d1bd96ffdc77
- MD5 d66853c8dc825a51de8cc6ba7f2d12a2
- SHA1 a1ad39b7eb59fdfe551f25636ae0cbe66bdb30e5
- SHA512 33fdd6f50ea3804e80a41b019fa8c7f23a7ad40af040df2be4f4d18a183861c1d30bddf3fb64abf66038036eb6fcc0995636c815c839cb5becd25ac3c025dcbb
- SSDEEP 12288:4SvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/Liw:TvO2xJKRw2kOkx2LFRvcUV
- TLSH T1C7F45A31E241C03AD0A74576C6FA0BAFE564BD25531155CBA3C43A6A2FB36D2BE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH