Analysis
- max time kernel
91s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
- submitted
13/02/2023, 11:32
General
- Target PO 55192752_PDF Dalian Hiscien Engineering Co Ltd iGST_eH2mYaM.exE.exe
- Size 973KB
- Sample230213-nm94bsch56
- SHA256 f0e2be29b4f60291bb5e95eb8e23794502c74d7daff6754762ba486cf92f4c4f
Malware Config
Extracted
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Protocol
ftp
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Host
ftp.brado-it.com
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Port
21
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Username
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Password
wKqTRDAW8B%F
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 5 IoCs
Password recovery tool for various email clients
- NirSoft WebBrowserPassView 5 IoCs
Password recovery tool for various web browsers
- Nirsoft 9 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
- Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
- 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 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- 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 3 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 29 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\PO 55192752_PDF Dalian Hiscien Engineering Co Ltd iGST_eH2mYaM.exE.exe"C:\Users\Admin\AppData\Local\Temp\PO 55192752_PDF Dalian Hiscien Engineering Co Ltd iGST_eH2mYaM.exE.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\iSEpzGuD" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD0D2.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\PO 55192752_PDF Dalian Hiscien Engineering Co Ltd iGST_eH2mYaM.exE.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⤵
- Accesses Microsoft Outlook accounts
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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⤵
- Suspicious behavior: EnumeratesProcesses
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
holderwb.txt
tmpD0D2.tmp
memory/1652-153-0x0000000000400000-0x0000000000458000-memory.dmp
memory/1652-151-0x0000000000400000-0x0000000000458000-memory.dmp
memory/1652-149-0x0000000000400000-0x0000000000458000-memory.dmp
memory/4564-142-0x0000000005800000-0x0000000005856000-memory.dmp
memory/4564-141-0x0000000000400000-0x0000000000488000-memory.dmp
memory/4876-132-0x00000000004C0000-0x00000000005BA000-memory.dmp
memory/4876-137-0x000000000FF50000-0x000000000FFB6000-memory.dmp
memory/4876-136-0x0000000004F60000-0x0000000004F6A000-memory.dmp
memory/4876-135-0x0000000005030000-0x00000000050CC000-memory.dmp
memory/4876-134-0x0000000004F90000-0x0000000005022000-memory.dmp
memory/4876-133-0x00000000054A0000-0x0000000005A44000-memory.dmp
memory/5024-144-0x0000000000400000-0x000000000041B000-memory.dmp
memory/5024-146-0x0000000000400000-0x000000000041B000-memory.dmp
memory/5024-147-0x0000000000400000-0x000000000041B000-memory.dmp