Analysis
- max time kernel
149s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
02/05/2026, 19:54
Behavioral task
behavioral1
Sample
cf15034b93efb5a850846fb2240cfdb90d0ee3a912768bf7fe3394cc3827bb71.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target cf15034b93efb5a850846fb2240cfdb90d0ee3a912768bf7fe3394cc3827bb71.exe
- Size 640KB
- Sample260502-ymst6ae12x
- SHA256 cf15034b93efb5a850846fb2240cfdb90d0ee3a912768bf7fe3394cc3827bb71
- MD5 e40bad83ffc3c1c59177843f7daee63e
- SHA1 ca612ce8869f602a1c846c5529a67f262128dc15
- SHA512 d432c7a56db29f879ed716a86668eb97b589d13d412086a9b9128871f285320b3e36292f7b07139ea97b936b871c4a36b17ab0646711637eec8b2f78773404bc
- SSDEEP 6144:pcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRuy8KU5Rc:pSvO2x9mONvKRwLSFtsOkxHya5+
- TLSH T1AED45B35A6808036C0B74631C6F64BAAF9B5BC25631195CFA384376A1F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 1932 28b91166 - 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 60 223.5.5.5 2272 cf15034b93efb5a850846fb2240cfdb90d0ee3a912768bf7fe3394cc3827bb71.exe Destination IP 1 114.114.114.114 2272 cf15034b93efb5a850846fb2240cfdb90d0ee3a912768bf7fe3394cc3827bb71.exe Destination IP 2 223.5.5.5 2272 cf15034b93efb5a850846fb2240cfdb90d0ee3a912768bf7fe3394cc3827bb71.exe Destination IP 9 114.114.114.114 2272 cf15034b93efb5a850846fb2240cfdb90d0ee3a912768bf7fe3394cc3827bb71.exe Destination IP 10 223.5.5.5 2272 cf15034b93efb5a850846fb2240cfdb90d0ee3a912768bf7fe3394cc3827bb71.exe Destination IP 59 114.114.114.114 2272 cf15034b93efb5a850846fb2240cfdb90d0ee3a912768bf7fe3394cc3827bb71.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 28b91166 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 28b91166 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 28b91166 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 28b91166 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 28b91166 File created C:\Windows\SysWOW64\28b91166 cf15034b93efb5a850846fb2240cfdb90d0ee3a912768bf7fe3394cc3827bb71.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 28b91166 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C 28b91166 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 28b91166 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 28b91166 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 28b91166 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 28b91166 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C 28b91166 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 28b91166 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 28b91166 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 28b91166 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 28b91166 -
resource yara_rule behavioral2/memory/2272-0-0x0000000000FD0000-0x000000000105C000-memory.dmp upx behavioral2/files/0x001e00000002b263-2.dat upx behavioral2/memory/1932-4-0x0000000000BE0000-0x0000000000C6C000-memory.dmp upx behavioral2/memory/2272-10-0x0000000000FD0000-0x000000000105C000-memory.dmp upx behavioral2/memory/1932-11-0x0000000000BE0000-0x0000000000C6C000-memory.dmp upx behavioral2/memory/1932-29-0x0000000000BE0000-0x0000000000C6C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\211398 28b91166 File opened for modification C:\Windows\26e5c0 cf15034b93efb5a850846fb2240cfdb90d0ee3a912768bf7fe3394cc3827bb71.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 cf15034b93efb5a850846fb2240cfdb90d0ee3a912768bf7fe3394cc3827bb71.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 28b91166 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 28b91166 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 28b91166 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 28b91166 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 28b91166 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 28b91166 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 28b91166 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 28b91166 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 28b91166 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 28b91166 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 1932 28b91166 1932 28b91166 1932 28b91166 1932 28b91166 1932 28b91166 1932 28b91166 1932 28b91166 1932 28b91166 2272 cf15034b93efb5a850846fb2240cfdb90d0ee3a912768bf7fe3394cc3827bb71.exe 2272 cf15034b93efb5a850846fb2240cfdb90d0ee3a912768bf7fe3394cc3827bb71.exe 2272 cf15034b93efb5a850846fb2240cfdb90d0ee3a912768bf7fe3394cc3827bb71.exe 2272 cf15034b93efb5a850846fb2240cfdb90d0ee3a912768bf7fe3394cc3827bb71.exe 2272 cf15034b93efb5a850846fb2240cfdb90d0ee3a912768bf7fe3394cc3827bb71.exe 2272 cf15034b93efb5a850846fb2240cfdb90d0ee3a912768bf7fe3394cc3827bb71.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2272 cf15034b93efb5a850846fb2240cfdb90d0ee3a912768bf7fe3394cc3827bb71.exe Token: SeTcbPrivilege 2272 cf15034b93efb5a850846fb2240cfdb90d0ee3a912768bf7fe3394cc3827bb71.exe Token: SeDebugPrivilege 1932 28b91166 Token: SeTcbPrivilege 1932 28b91166
Processes
-
C:\Users\Admin\AppData\Local\Temp\cf15034b93efb5a850846fb2240cfdb90d0ee3a912768bf7fe3394cc3827bb71.exe"C:\Users\Admin\AppData\Local\Temp\cf15034b93efb5a850846fb2240cfdb90d0ee3a912768bf7fe3394cc3827bb71.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:2272
-
C:\Windows\Syswow64\28b91166C:\Windows\Syswow64\28b911661⤵
- 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:1932
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\28b91166
- Size 640KB
- SHA256 c47228ca83c319436db9020369ecdc66b65de02f0c457054da2a1118bc6f4edb
- MD5 c6ed8875f1655ef8f0fae1c8dc60aff9
- SHA1 8f78f9fa81235b34bd26a639851bf24bb34eabd9
- SHA512 7d8c28cb5e90a2c5732d6f1a6d482ccd2ec7978428287b8f937c6079af3591a9367b77769175d61f1afdc2a2bdc4422f83623c5307a8beaa6d26e63bfa13fb12
- SSDEEP 6144:7cTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRuy8KU5Rc:7SvO2x9mONvKRwLSFtsOkxHya5+
- TLSH T18AD45B35A6808036C0B74631C6F64BAAF9B5BC25631195CFA384376A1F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH