Analysis
- max time kernel
155s - max time network
164s - platform
windows10-2004_x64 - resource
win10v2004-20230915-en - resource tags
- submitted
12/10/2023, 07:00
General
- Target Purchase List Xls.exe
- Size 1.1MB
- Sample231012-hsyplach51
- SHA256 f2090573cb87041990365a6fec8532cdc4f1cd9928a1aae37e06d0f1f8a5e9d5
Malware Config
Signatures
- HawkEye
HawkEye is a malware kit that has seen continuous development since at least 2013.
- Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
- NirSoft MailPassView 1 IoCs
Password recovery tool for various email clients
- NirSoft WebBrowserPassView 1 IoCs
Password recovery tool for various web browsers
- Nirsoft 1 IoCs
- Looks for VMWare Tools registry key 2 TTPs 1 IoCs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- 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 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
- Suspicious use of SetThreadContext 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 20 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Purchase List Xls.exe"C:\Users\Admin\AppData\Local\Temp\Purchase List Xls.exe"1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QAgHtvI" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB089.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\Purchase List Xls.exe"{path}"2⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- 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\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2872 -ip 28721⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1496 -ip 14961⤵
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Replay Monitor
Loading Replay Monitor...
Downloads
Purchase List Xls.exe.log
tmpB089.tmp
memory/1496-30-0x0000000006E70000-0x0000000006E78000-memory.dmp
memory/1496-27-0x00000000057D0000-0x00000000057E0000-memory.dmp
memory/1496-26-0x0000000074660000-0x0000000074E10000-memory.dmp
memory/1496-22-0x00000000057D0000-0x00000000057E0000-memory.dmp
memory/1496-21-0x0000000074660000-0x0000000074E10000-memory.dmp
memory/1496-18-0x0000000000400000-0x0000000000488000-memory.dmp
memory/2272-6-0x0000000005080000-0x0000000005112000-memory.dmp
memory/2272-0-0x0000000074660000-0x0000000074E10000-memory.dmp
memory/2272-10-0x0000000005B40000-0x0000000005E94000-memory.dmp
memory/2272-11-0x0000000006810000-0x000000000681C000-memory.dmp
memory/2272-12-0x0000000000C60000-0x0000000000D16000-memory.dmp
memory/2272-13-0x000000000A910000-0x000000000A998000-memory.dmp
memory/2272-14-0x000000000D9A0000-0x000000000DA06000-memory.dmp
memory/2272-8-0x0000000005010000-0x000000000501A000-memory.dmp
memory/2272-7-0x0000000004E60000-0x0000000004E70000-memory.dmp
memory/2272-9-0x0000000005270000-0x00000000052C6000-memory.dmp
memory/2272-5-0x0000000074660000-0x0000000074E10000-memory.dmp
memory/2272-4-0x0000000005590000-0x0000000005B34000-memory.dmp
memory/2272-23-0x0000000074660000-0x0000000074E10000-memory.dmp
memory/2272-3-0x0000000004E60000-0x0000000004E70000-memory.dmp
memory/2272-2-0x0000000004F40000-0x0000000004FDC000-memory.dmp
memory/2272-1-0x0000000000480000-0x00000000005A4000-memory.dmp
memory/2872-31-0x0000000000400000-0x000000000041B000-memory.dmp