Analysis
- max time kernel
90s - max time network
114s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
20/01/2023, 00:58
General
- Target RFQ#GWP894664756757598757.exe
- Size 664KB
- Sample230120-bbhtgshg97
- SHA256 1326d9172aa0687e037a43b532cf2fb0e2ba90bff2e35efdebac87c3b06560f2
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.nksba.com
-
Port
587
-
Username
-
Password
nkelectric01234
Signatures
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 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.
- Suspicious use of SetThreadContext 1 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 6 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\RFQ#GWP894664756757598757.exe"C:\Users\Admin\AppData\Local\Temp\RFQ#GWP894664756757598757.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\WBpkAkYeHVAULJ.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WBpkAkYeHVAULJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7B5A.tmp"2⤵
- Creates scheduled task(s)
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-
C:\Users\Admin\AppData\Local\Temp\RFQ#GWP894664756757598757.exe"C:\Users\Admin\AppData\Local\Temp\RFQ#GWP894664756757598757.exe"2⤵
-
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C:\Users\Admin\AppData\Local\Temp\RFQ#GWP894664756757598757.exe"C:\Users\Admin\AppData\Local\Temp\RFQ#GWP894664756757598757.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
RFQ#GWP894664756757598757.exe.log
tmp7B5A.tmp
memory/4080-153-0x0000000007DD0000-0x000000000844A000-memory.dmp
memory/4080-154-0x0000000007720000-0x000000000773A000-memory.dmp
memory/4080-159-0x0000000007A50000-0x0000000007A58000-memory.dmp
memory/4080-139-0x0000000004E40000-0x0000000004E76000-memory.dmp
memory/4080-158-0x0000000007A70000-0x0000000007A8A000-memory.dmp
memory/4080-141-0x00000000055F0000-0x0000000005C18000-memory.dmp
memory/4080-142-0x00000000052E0000-0x0000000005302000-memory.dmp
memory/4080-143-0x0000000005480000-0x00000000054E6000-memory.dmp
memory/4080-145-0x0000000005D90000-0x0000000005DF6000-memory.dmp
memory/4080-157-0x0000000007960000-0x000000000796E000-memory.dmp
memory/4080-156-0x00000000079B0000-0x0000000007A46000-memory.dmp
memory/4080-155-0x00000000077A0000-0x00000000077AA000-memory.dmp
memory/4080-152-0x00000000069D0000-0x00000000069EE000-memory.dmp
memory/4080-149-0x0000000006430000-0x000000000644E000-memory.dmp
memory/4080-150-0x00000000069F0000-0x0000000006A22000-memory.dmp
memory/4080-151-0x0000000071540000-0x000000007158C000-memory.dmp
memory/4264-133-0x0000000005C80000-0x0000000006224000-memory.dmp
memory/4264-132-0x0000000000BA0000-0x0000000000C4C000-memory.dmp
memory/4264-136-0x0000000005850000-0x00000000058EC000-memory.dmp
memory/4264-134-0x00000000056D0000-0x0000000005762000-memory.dmp
memory/4264-135-0x00000000057A0000-0x00000000057AA000-memory.dmp
memory/4884-147-0x0000000000400000-0x0000000000430000-memory.dmp
memory/4884-160-0x0000000006E90000-0x0000000006EE0000-memory.dmp
memory/4884-161-0x00000000070B0000-0x0000000007272000-memory.dmp