Analysis
- max time kernel
149s - max time network
144s - platform
windows11-21h2_x64 - resource
win11-20250610-en - resource tags
arch:x64arch:x86image:win11-20250610-enlocale:en-usos:windows11-21h2-x64system - submitted
11/05/2026, 21:10
Behavioral task
behavioral1
Sample
4ad03aefcb643524171bbc7203d0eaff2e3398585bd811d85e4bfbfc4372fd38.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 4ad03aefcb643524171bbc7203d0eaff2e3398585bd811d85e4bfbfc4372fd38.exe
- Size 640KB
- Sample260511-zz71aaet4p
- SHA256 4ad03aefcb643524171bbc7203d0eaff2e3398585bd811d85e4bfbfc4372fd38
- MD5 719f2cadc6bb32e4bd8b00b59f94a0eb
- SHA1 40b7aabe1fbfb7adffe7c003ee273c00a0510374
- SHA512 aeaf8476600cf06bf7a2902fdd5de23294fb395ab8b8ce01ff473b08d09a41087b0d4747968092bfc5d48d720333664c8053ba50c74b442493d079d9b0b0e5d0
- SSDEEP 6144:EcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRuy8KU5Rc:ESvO2x9mONvKRwLSFtsOkxHya5+
- TLSH T1FBD45B35A6808036C0B74631C6F64BAAF9B5BC25631195CFA384376A1F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 5756 f6c1b0bd - Unexpected DNS network traffic destination 12 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 3 223.5.5.5 1568 4ad03aefcb643524171bbc7203d0eaff2e3398585bd811d85e4bfbfc4372fd38.exe Destination IP 38 223.5.5.5 1568 4ad03aefcb643524171bbc7203d0eaff2e3398585bd811d85e4bfbfc4372fd38.exe Destination IP 59 223.5.5.5 1568 4ad03aefcb643524171bbc7203d0eaff2e3398585bd811d85e4bfbfc4372fd38.exe Destination IP 132 114.114.114.114 5756 f6c1b0bd Destination IP 138 223.5.5.5 1568 4ad03aefcb643524171bbc7203d0eaff2e3398585bd811d85e4bfbfc4372fd38.exe Destination IP 186 114.114.114.114 1568 4ad03aefcb643524171bbc7203d0eaff2e3398585bd811d85e4bfbfc4372fd38.exe Destination IP 1 114.114.114.114 1568 4ad03aefcb643524171bbc7203d0eaff2e3398585bd811d85e4bfbfc4372fd38.exe Destination IP 37 114.114.114.114 1568 4ad03aefcb643524171bbc7203d0eaff2e3398585bd811d85e4bfbfc4372fd38.exe Destination IP 57 114.114.114.114 1568 4ad03aefcb643524171bbc7203d0eaff2e3398585bd811d85e4bfbfc4372fd38.exe Destination IP 116 114.114.114.114 1568 4ad03aefcb643524171bbc7203d0eaff2e3398585bd811d85e4bfbfc4372fd38.exe Destination IP 118 223.5.5.5 1568 4ad03aefcb643524171bbc7203d0eaff2e3398585bd811d85e4bfbfc4372fd38.exe Destination IP 187 223.5.5.5 1568 4ad03aefcb643524171bbc7203d0eaff2e3398585bd811d85e4bfbfc4372fd38.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft f6c1b0bd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache f6c1b0bd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData f6c1b0bd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content f6c1b0bd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 f6c1b0bd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies f6c1b0bd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 f6c1b0bd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 f6c1b0bd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 f6c1b0bd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 f6c1b0bd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 f6c1b0bd File created C:\Windows\SysWOW64\f6c1b0bd 4ad03aefcb643524171bbc7203d0eaff2e3398585bd811d85e4bfbfc4372fd38.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 f6c1b0bd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE f6c1b0bd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 f6c1b0bd -
resource yara_rule behavioral2/memory/1568-0-0x00000000004F0000-0x000000000057C000-memory.dmp upx behavioral2/files/0x001000000002ad01-2.dat upx behavioral2/memory/5756-3-0x00000000000F0000-0x000000000017C000-memory.dmp upx behavioral2/memory/1568-18-0x00000000004F0000-0x000000000057C000-memory.dmp upx behavioral2/memory/5756-20-0x00000000000F0000-0x000000000017C000-memory.dmp upx behavioral2/memory/5756-46-0x00000000000F0000-0x000000000017C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\628b78 f6c1b0bd File opened for modification C:\Windows\1ad840 4ad03aefcb643524171bbc7203d0eaff2e3398585bd811d85e4bfbfc4372fd38.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 4ad03aefcb643524171bbc7203d0eaff2e3398585bd811d85e4bfbfc4372fd38.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language f6c1b0bd - 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" f6c1b0bd Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" f6c1b0bd Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix f6c1b0bd Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" f6c1b0bd Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ f6c1b0bd Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" f6c1b0bd Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" f6c1b0bd Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing f6c1b0bd Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" f6c1b0bd - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 5756 f6c1b0bd 5756 f6c1b0bd 5756 f6c1b0bd 5756 f6c1b0bd 5756 f6c1b0bd 5756 f6c1b0bd 5756 f6c1b0bd 5756 f6c1b0bd 1568 4ad03aefcb643524171bbc7203d0eaff2e3398585bd811d85e4bfbfc4372fd38.exe 1568 4ad03aefcb643524171bbc7203d0eaff2e3398585bd811d85e4bfbfc4372fd38.exe 1568 4ad03aefcb643524171bbc7203d0eaff2e3398585bd811d85e4bfbfc4372fd38.exe 1568 4ad03aefcb643524171bbc7203d0eaff2e3398585bd811d85e4bfbfc4372fd38.exe 1568 4ad03aefcb643524171bbc7203d0eaff2e3398585bd811d85e4bfbfc4372fd38.exe 1568 4ad03aefcb643524171bbc7203d0eaff2e3398585bd811d85e4bfbfc4372fd38.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1568 4ad03aefcb643524171bbc7203d0eaff2e3398585bd811d85e4bfbfc4372fd38.exe Token: SeTcbPrivilege 1568 4ad03aefcb643524171bbc7203d0eaff2e3398585bd811d85e4bfbfc4372fd38.exe Token: SeDebugPrivilege 5756 f6c1b0bd Token: SeTcbPrivilege 5756 f6c1b0bd
Processes
-
C:\Users\Admin\AppData\Local\Temp\4ad03aefcb643524171bbc7203d0eaff2e3398585bd811d85e4bfbfc4372fd38.exe"C:\Users\Admin\AppData\Local\Temp\4ad03aefcb643524171bbc7203d0eaff2e3398585bd811d85e4bfbfc4372fd38.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:1568
-
C:\Windows\Syswow64\f6c1b0bdC:\Windows\Syswow64\f6c1b0bd1⤵
- Executes dropped EXE
- Unexpected DNS network traffic destination
- 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:5756
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\f6c1b0bd
- Size 640KB
- SHA256 8b79569a2741f39af457c29fbdeb0d69ad9e664362fd691297c1d6f73350144f
- MD5 8b3de2ed43b212dbb564e054eef0b5db
- SHA1 7ae0a3e65e026c1b742ec0deb1b9d4e914222078
- SHA512 07d946c4e74705b725b89f815859d57c4b93d307059875008b8049761492631a944d55d23cef721536a774e1d89f96edf0ac355540da297ddd8b1e4a11ca0fe1
- SSDEEP 6144:RcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRuy8KU5Rc:RSvO2x9mONvKRwLSFtsOkxHya5+
- TLSH T16ED45B35A6808036C0B74631C6F64BAAF9B5BC21631195CFA384376A1F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH