Analysis
- max time kernel
150s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
04/10/2026, 23:34
Behavioral task
behavioral1
Sample
51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe
Resource
win10v2004-20260911-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe
- Size 768KB
- Sample261004-3kh96ats2k
- SHA256 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763
- MD5 8865aa13efa2e160c9fcd85e8c003ee4
- SHA1 661b4020215d2838f824644e6917065ccf9b1beb
- SHA512 ff45fe33624608269245eed7cae6b4f204fe06062a70650f646677f301e434227099102fe3410403bb5aac0040af2241e1345b7c1ec141693e95789710b0b00a
- SSDEEP 12288:+qXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:+jHPOSOkx2LFscU6UQOJdT
- TLSH T1E6F47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 5064 7643f33c - Unexpected DNS network traffic destination 22 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 181 223.5.5.5 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe Destination IP 234 114.114.114.114 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe Destination IP 311 114.114.114.114 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe Destination IP 312 223.5.5.5 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe Destination IP 343 114.114.114.114 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe Destination IP 4 223.5.5.5 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe Destination IP 39 114.114.114.114 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe Destination IP 94 223.5.5.5 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe Destination IP 235 223.5.5.5 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe Destination IP 287 114.114.114.114 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe Destination IP 344 223.5.5.5 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe Destination IP 398 223.5.5.5 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe Destination IP 289 223.5.5.5 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe Destination IP 397 114.114.114.114 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe Destination IP 452 114.114.114.114 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe Destination IP 453 223.5.5.5 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe Destination IP 1 114.114.114.114 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe Destination IP 148 114.114.114.114 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe Destination IP 149 223.5.5.5 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe Destination IP 40 223.5.5.5 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe Destination IP 93 114.114.114.114 5064 7643f33c Destination IP 180 114.114.114.114 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 7643f33c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 7643f33c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 7643f33c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 7643f33c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 7643f33c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 7643f33c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 7643f33c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 7643f33c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 7643f33c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 7643f33c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 7643f33c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 7643f33c File created C:\Windows\SysWOW64\7643f33c 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe -
resource yara_rule behavioral2/memory/1328-0-0x00000000006E0000-0x0000000000769000-memory.dmp upx behavioral2/files/0x000f00000001b871-2.dat upx behavioral2/memory/5064-3-0x0000000000E00000-0x0000000000E89000-memory.dmp upx behavioral2/memory/1328-18-0x00000000006E0000-0x0000000000769000-memory.dmp upx behavioral2/memory/5064-20-0x0000000000E00000-0x0000000000E89000-memory.dmp upx behavioral2/memory/5064-24-0x0000000000E00000-0x0000000000E89000-memory.dmp upx behavioral2/memory/5064-26-0x0000000000E00000-0x0000000000E89000-memory.dmp upx behavioral2/memory/1328-43-0x00000000006E0000-0x0000000000769000-memory.dmp upx behavioral2/memory/5064-44-0x0000000000E00000-0x0000000000E89000-memory.dmp upx behavioral2/memory/1328-47-0x00000000006E0000-0x0000000000769000-memory.dmp upx behavioral2/memory/1328-51-0x00000000006E0000-0x0000000000769000-memory.dmp upx behavioral2/memory/5064-52-0x0000000000E00000-0x0000000000E89000-memory.dmp upx behavioral2/memory/1328-58-0x00000000006E0000-0x0000000000769000-memory.dmp upx behavioral2/memory/1328-64-0x00000000006E0000-0x0000000000769000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\16bc60 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe File opened for modification C:\Windows\56b290 7643f33c - Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname 7643f33c Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain 7643f33c Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.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 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 7643f33c - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 7643f33c Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 7643f33c Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 7643f33c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 7643f33c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 7643f33c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 7643f33c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 7643f33c Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 7643f33c Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 7643f33c - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 5064 7643f33c 5064 7643f33c 5064 7643f33c 5064 7643f33c 5064 7643f33c 5064 7643f33c 5064 7643f33c 5064 7643f33c 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe Token: SeTcbPrivilege 1328 51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe Token: SeDebugPrivilege 5064 7643f33c Token: SeTcbPrivilege 5064 7643f33c
Processes
-
C:\Users\Admin\AppData\Local\Temp\51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe"C:\Users\Admin\AppData\Local\Temp\51f8408c4b26d85d2cb5f571235cde965963f426daf9f68b6d1c5681a6d05763.exe"1⤵
- Unexpected DNS network traffic destination
- Drops file in System32 directory
- Drops file in Windows directory
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1328
-
C:\Windows\Syswow64\7643f33cC:\Windows\Syswow64\7643f33c1⤵
- Executes dropped EXE
- Unexpected DNS network traffic destination
- Drops file in System32 directory
- Drops file in Windows directory
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5064
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\7643f33c
- Size 768KB
- SHA256 63f529d49f89c118e015c7f7b5bb8024d73fc6622c7e7bbff2e7d9b4a8ccf1af
- MD5 46be03a8116ea09c64d06b986b22a11f
- SHA1 71aa021b4d1ad54bfd35c2530f2574bd1bb62602
- SHA512 841c1dffa392c9ae7958a4b82cbe16ba5565fb02072a4d660dfadd5e389feb26e1088cfae50ad0ac45c6fd71340bb9bbf9f0ede9ac7991bd18f5629d7ceac778
- SSDEEP 12288:jqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:jjHPOSOkx2LFscU6UQOJdT
- TLSH T1FAF47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH