Analysis
- max time kernel
148s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
27/07/2026, 08:22
Behavioral task
behavioral1
Sample
639b76279725c1d786202cfbfc20c4b3f457a6ee7ec7ddedf5536bbe9f6a6279.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 639b76279725c1d786202cfbfc20c4b3f457a6ee7ec7ddedf5536bbe9f6a6279.exe
- Size 761KB
- Sample260727-j9jsfayxe1
- SHA256 639b76279725c1d786202cfbfc20c4b3f457a6ee7ec7ddedf5536bbe9f6a6279
- MD5 371287def2630983b5759d0c4fdb59ae
- SHA1 30d0e65d8e22f746776b34932d089e7a5f256014
- SHA512 723df137a862655d9b5464de21f733081c320d156c5137d3200ceacf7c5211180ad10d0d20ffd1e36956ad07c8bac2b72107849e98aef9515bfb04613127ca43
- SSDEEP 12288:MSvO2x9mONvKRwLSFtsOkxHya5hYIW0p98B:/vO2xJKRw2kOkxSkW298B
- TLSH T1A8F49E35A2808036C0B34532C6F94AABF9797D35631565CBA3843B662F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 2652 1aa3acf6 - 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 13 114.114.114.114 5732 639b76279725c1d786202cfbfc20c4b3f457a6ee7ec7ddedf5536bbe9f6a6279.exe Destination IP 15 223.5.5.5 5732 639b76279725c1d786202cfbfc20c4b3f457a6ee7ec7ddedf5536bbe9f6a6279.exe Destination IP 73 114.114.114.114 5732 639b76279725c1d786202cfbfc20c4b3f457a6ee7ec7ddedf5536bbe9f6a6279.exe Destination IP 74 223.5.5.5 5732 639b76279725c1d786202cfbfc20c4b3f457a6ee7ec7ddedf5536bbe9f6a6279.exe Destination IP 1 114.114.114.114 5732 639b76279725c1d786202cfbfc20c4b3f457a6ee7ec7ddedf5536bbe9f6a6279.exe Destination IP 2 223.5.5.5 5732 639b76279725c1d786202cfbfc20c4b3f457a6ee7ec7ddedf5536bbe9f6a6279.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 1aa3acf6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 1aa3acf6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 1aa3acf6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 1aa3acf6 File created C:\Windows\SysWOW64\1aa3acf6 639b76279725c1d786202cfbfc20c4b3f457a6ee7ec7ddedf5536bbe9f6a6279.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 1aa3acf6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 1aa3acf6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 1aa3acf6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 1aa3acf6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 1aa3acf6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 1aa3acf6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 1aa3acf6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 1aa3acf6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 1aa3acf6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 1aa3acf6 -
resource yara_rule behavioral2/memory/5732-0-0x00000000001B0000-0x000000000023C000-memory.dmp upx behavioral2/files/0x0008000000019ce0-2.dat upx behavioral2/memory/2652-3-0x0000000000790000-0x000000000081C000-memory.dmp upx behavioral2/memory/5732-15-0x00000000001B0000-0x000000000023C000-memory.dmp upx behavioral2/memory/2652-16-0x0000000000790000-0x000000000081C000-memory.dmp upx behavioral2/memory/2652-36-0x0000000000790000-0x000000000081C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\2d6738 1aa3acf6 File opened for modification C:\Windows\622248 639b76279725c1d786202cfbfc20c4b3f457a6ee7ec7ddedf5536bbe9f6a6279.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 1aa3acf6 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 639b76279725c1d786202cfbfc20c4b3f457a6ee7ec7ddedf5536bbe9f6a6279.exe - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 1aa3acf6 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 1aa3acf6 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 1aa3acf6 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 1aa3acf6 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 1aa3acf6 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 1aa3acf6 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 1aa3acf6 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 1aa3acf6 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 1aa3acf6 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 2652 1aa3acf6 2652 1aa3acf6 2652 1aa3acf6 2652 1aa3acf6 2652 1aa3acf6 2652 1aa3acf6 2652 1aa3acf6 2652 1aa3acf6 5732 639b76279725c1d786202cfbfc20c4b3f457a6ee7ec7ddedf5536bbe9f6a6279.exe 5732 639b76279725c1d786202cfbfc20c4b3f457a6ee7ec7ddedf5536bbe9f6a6279.exe 5732 639b76279725c1d786202cfbfc20c4b3f457a6ee7ec7ddedf5536bbe9f6a6279.exe 5732 639b76279725c1d786202cfbfc20c4b3f457a6ee7ec7ddedf5536bbe9f6a6279.exe 5732 639b76279725c1d786202cfbfc20c4b3f457a6ee7ec7ddedf5536bbe9f6a6279.exe 5732 639b76279725c1d786202cfbfc20c4b3f457a6ee7ec7ddedf5536bbe9f6a6279.exe 5732 639b76279725c1d786202cfbfc20c4b3f457a6ee7ec7ddedf5536bbe9f6a6279.exe 5732 639b76279725c1d786202cfbfc20c4b3f457a6ee7ec7ddedf5536bbe9f6a6279.exe 5732 639b76279725c1d786202cfbfc20c4b3f457a6ee7ec7ddedf5536bbe9f6a6279.exe 5732 639b76279725c1d786202cfbfc20c4b3f457a6ee7ec7ddedf5536bbe9f6a6279.exe 5732 639b76279725c1d786202cfbfc20c4b3f457a6ee7ec7ddedf5536bbe9f6a6279.exe 5732 639b76279725c1d786202cfbfc20c4b3f457a6ee7ec7ddedf5536bbe9f6a6279.exe 5732 639b76279725c1d786202cfbfc20c4b3f457a6ee7ec7ddedf5536bbe9f6a6279.exe 5732 639b76279725c1d786202cfbfc20c4b3f457a6ee7ec7ddedf5536bbe9f6a6279.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 5732 639b76279725c1d786202cfbfc20c4b3f457a6ee7ec7ddedf5536bbe9f6a6279.exe Token: SeTcbPrivilege 5732 639b76279725c1d786202cfbfc20c4b3f457a6ee7ec7ddedf5536bbe9f6a6279.exe Token: SeDebugPrivilege 2652 1aa3acf6 Token: SeTcbPrivilege 2652 1aa3acf6
Processes
-
C:\Users\Admin\AppData\Local\Temp\639b76279725c1d786202cfbfc20c4b3f457a6ee7ec7ddedf5536bbe9f6a6279.exe"C:\Users\Admin\AppData\Local\Temp\639b76279725c1d786202cfbfc20c4b3f457a6ee7ec7ddedf5536bbe9f6a6279.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:5732
-
C:\Windows\Syswow64\1aa3acf6C:\Windows\Syswow64\1aa3acf61⤵
- 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:2652
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\1aa3acf6
- Size 761KB
- SHA256 730dca95ff307461d5854b6fb82232aed39f8de5ee9a250e1353e76293b621af
- MD5 7b89def9941eec5825f5e73c245cf496
- SHA1 097c7d8f63312d6a18a0244ce012d87c0ac8d60a
- SHA512 2f390a326491cb0d85886aaf92db51763ff297e70d0ed7f6cdc21b344774ba0412a803db3bcb0598c53947213b4fc7950ef41ea4252b5bdc6e1d9aadf75b3a2a
- SSDEEP 12288:1SvO2x9mONvKRwLSFtsOkxHya5hYIW0p98B:0vO2xJKRw2kOkxSkW298B
- TLSH T16BF49E35A2808036C0B34532C6F94AABF9797D35631565CBA3843B662F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH