Analysis
- max time kernel
101s - max time network
125s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
10/10/2026, 12:52
General
- Target jaffacakes118_Trojan-PSW.Win32.Heye.fzw.exe
- Size 997KB
- Sample261010-p34f6ahd39
- SHA256 8b40e6f1240728bf9022275cf1ea2071b1ea73835eceec25b2d6346f00a341ba
Malware Config
Signatures
- Family: Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Family: HawkEye
HawkEye is a malware kit that has seen continuous development since at least 2013.
- Detected Nirsoft tools 4 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
- NirSoft MailPassView 3 IoCs
Password recovery tool for various email clients
- NirSoft WebBrowserPassView 3 IoCs
Password recovery tool for various web browsers
- Executes dropped EXE 2 IoCs
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Uses the VBS compiler for execution 1 TTPs
- Adds Run key to start application 2 TTPs 1 IoCs
- Looks up external IP address via web service 1 TTPs 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 4 IoCs
- Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
- System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 3 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-PSW.Win32.Heye.fzw.exe"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-PSW.Win32.Heye.fzw.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-PSW.Win32.Heye.fzw.exeC:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-PSW.Win32.Heye.fzw.exe"2⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exeC:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"3⤵
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exeC:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"3⤵
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C:\Users\Admin\AppData\Roaming\WindowsUpdate.exeC:\Users\Admin\AppData\Roaming\WindowsUpdate.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\WindowsUpdate.exe:\Users\Admin\AppData\Roaming\WindowsUpdate.exe2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
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Network
MITRE ATT&CK Enterprise v16
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
WindowsUpdate.exe
memory/1216-27-0x0000000000400000-0x000000000041B000-memory.dmp
memory/4152-29-0x0000000076CB0000-0x0000000076DA0000-memory.dmp
memory/4152-30-0x0000000076CB0000-0x0000000076DA0000-memory.dmp
memory/4152-21-0x0000000076CB0000-0x0000000076DA0000-memory.dmp
memory/4152-20-0x0000000076CB0000-0x0000000076DA0000-memory.dmp
memory/4152-10-0x0000000006D50000-0x0000000006DE6000-memory.dmp
memory/4152-5-0x0000000000400000-0x000000000047B000-memory.dmp
memory/4152-65-0x0000000076CB0000-0x0000000076DA0000-memory.dmp
memory/4152-19-0x0000000076CCC000-0x0000000076CCD000-memory.dmp
memory/4152-31-0x0000000076CB0000-0x0000000076DA0000-memory.dmp
memory/4152-32-0x0000000076CB0000-0x0000000076DA0000-memory.dmp
memory/5088-2-0x00000000022F0000-0x00000000022F7000-memory.dmp
memory/5112-55-0x00000000023F0000-0x0000000002486000-memory.dmp
memory/5112-64-0x0000000000400000-0x000000000047B000-memory.dmp
memory/5500-40-0x0000000076CB0000-0x0000000076DA0000-memory.dmp
memory/5848-33-0x0000000000400000-0x0000000000458000-memory.dmp