Analysis
- max time kernel
149s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
- submitted
28/05/2026, 03:45
General
- Target 8acf760470e624f4f8f86510f014788fae6674d9d7d06333d3eae9a12dfd16ac.exe
- Size 8.5MB
- Sample260528-ebch9aez2k
- SHA256 8acf760470e624f4f8f86510f014788fae6674d9d7d06333d3eae9a12dfd16ac
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 2 IoCs
- Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
- UPX packed file 25 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of SetWindowsHookEx 6 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\8acf760470e624f4f8f86510f014788fae6674d9d7d06333d3eae9a12dfd16ac.exe"C:\Users\Admin\AppData\Local\Temp\8acf760470e624f4f8f86510f014788fae6674d9d7d06333d3eae9a12dfd16ac.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\kaidisoft\youkuweb\8acf760470e624f4f8f86510f014788fae6674d9d7d06333d3eae9a12dfd16ac.exe"C:\kaidisoft\youkuweb\8acf760470e624f4f8f86510f014788fae6674d9d7d06333d3eae9a12dfd16ac.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\nslookup.exenslookup -qt=TXT ns1.60r.cn3⤵
- System Location Discovery: System Language Discovery
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C:\Windows\SysWOW64\nslookup.exenslookup -qt=TXT ns1.60r.cn3⤵
- System Location Discovery: System Language Discovery
-
-
C:\Windows\SysWOW64\nslookup.exenslookup -qt=TXT ns1.60r.cn3⤵
- System Location Discovery: System Language Discovery
-
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
E2EECore.3.3.9.dll
8acf760470e624f4f8f86510f014788fae6674d9d7d06333d3eae9a12dfd16ac.exe
memory/2920-41-0x0000000010000000-0x000000001003E000-memory.dmp
memory/2920-59-0x0000000010000000-0x000000001003E000-memory.dmp
memory/2920-25-0x0000000010000000-0x000000001003E000-memory.dmp
memory/2920-63-0x0000000010000000-0x000000001003E000-memory.dmp
memory/2920-61-0x0000000010000000-0x000000001003E000-memory.dmp
memory/2920-57-0x0000000010000000-0x000000001003E000-memory.dmp
memory/2920-55-0x0000000010000000-0x000000001003E000-memory.dmp
memory/2920-53-0x0000000010000000-0x000000001003E000-memory.dmp
memory/2920-49-0x0000000010000000-0x000000001003E000-memory.dmp
memory/2920-47-0x0000000010000000-0x000000001003E000-memory.dmp
memory/2920-45-0x0000000010000000-0x000000001003E000-memory.dmp
memory/2920-43-0x0000000010000000-0x000000001003E000-memory.dmp
memory/2920-20-0x0000000010000000-0x000000001003E000-memory.dmp
memory/2920-22-0x0000000010000000-0x000000001003E000-memory.dmp
memory/2920-29-0x0000000010000000-0x000000001003E000-memory.dmp
memory/2920-35-0x0000000010000000-0x000000001003E000-memory.dmp
memory/2920-33-0x0000000010000000-0x000000001003E000-memory.dmp
memory/2920-31-0x0000000010000000-0x000000001003E000-memory.dmp
memory/2920-37-0x0000000010000000-0x000000001003E000-memory.dmp
memory/2920-24-0x0000000010000000-0x000000001003E000-memory.dmp
memory/2920-23-0x0000000010000000-0x000000001003E000-memory.dmp
memory/2920-65-0x0000000010000000-0x000000001003E000-memory.dmp
memory/2920-39-0x0000000010000000-0x000000001003E000-memory.dmp
memory/2920-52-0x0000000010000000-0x000000001003E000-memory.dmp
memory/2920-27-0x0000000010000000-0x000000001003E000-memory.dmp
memory/4392-0-0x0000000000400000-0x0000000000CFE000-memory.dmp