Analysis
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max time kernel
150s -
max time network
138s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
10/03/2022, 02:33
Static task
static1
Behavioral task
behavioral1
Sample
6d10dd70b8dceb476ce2710a4cac4ce80006dd7c59469b9db4a55e5e5b0dbbbb.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
6d10dd70b8dceb476ce2710a4cac4ce80006dd7c59469b9db4a55e5e5b0dbbbb.exe
Resource
win10v2004-en-20220113
General
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Target
6d10dd70b8dceb476ce2710a4cac4ce80006dd7c59469b9db4a55e5e5b0dbbbb.exe
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Size
506KB
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MD5
3750a882d6c8cfcd5a9e883311624df3
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SHA1
28a1dd4675a65f7046c8aea5497d9ece3473e194
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SHA256
6d10dd70b8dceb476ce2710a4cac4ce80006dd7c59469b9db4a55e5e5b0dbbbb
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SHA512
2d3d015491dcebbe54d8f3a74f08ce0151fa836dbd75fffb66b1bd603adb0bddf3a0f6345bbe6a0e4e7babbef5f7d06084814c11220720285c2bf1fd98e3f049
Malware Config
Extracted
Protocol: smtp- Host:
smtp.gmail.com - Port:
587 - Username:
[email protected] - Password:
wafdandan
Signatures
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NirSoft MailPassView 5 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral1/files/0x0007000000012624-58.dat MailPassView behavioral1/files/0x0007000000012624-59.dat MailPassView behavioral1/files/0x0007000000012624-60.dat MailPassView behavioral1/memory/1620-67-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral1/memory/1620-70-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 5 IoCs
Password recovery tool for various web browsers
resource yara_rule behavioral1/files/0x0007000000012624-58.dat WebBrowserPassView behavioral1/files/0x0007000000012624-59.dat WebBrowserPassView behavioral1/files/0x0007000000012624-60.dat WebBrowserPassView behavioral1/memory/1736-71-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral1/memory/1736-74-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView -
Nirsoft 7 IoCs
resource yara_rule behavioral1/files/0x0007000000012624-58.dat Nirsoft behavioral1/files/0x0007000000012624-59.dat Nirsoft behavioral1/files/0x0007000000012624-60.dat Nirsoft behavioral1/memory/1620-67-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/1620-70-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/1736-71-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral1/memory/1736-74-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft -
Executes dropped EXE 1 IoCs
pid Process 268 Windows Update.exe -
Deletes itself 1 IoCs
pid Process 268 Windows Update.exe -
Loads dropped DLL 1 IoCs
pid Process 796 6d10dd70b8dceb476ce2710a4cac4ce80006dd7c59469b9db4a55e5e5b0dbbbb.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Uses the VBS compiler for execution 1 TTPs
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Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts vbc.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Users\\Admin\\AppData\\Roaming\\WindowsUpdate.exe" Windows Update.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 4 whatismyipaddress.com 6 whatismyipaddress.com 7 whatismyipaddress.com -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 268 set thread context of 1620 268 Windows Update.exe 29 PID 268 set thread context of 1736 268 Windows Update.exe 30 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe 268 Windows Update.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 268 Windows Update.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 268 Windows Update.exe -
Suspicious use of WriteProcessMemory 27 IoCs
description pid Process procid_target PID 796 wrote to memory of 268 796 6d10dd70b8dceb476ce2710a4cac4ce80006dd7c59469b9db4a55e5e5b0dbbbb.exe 27 PID 796 wrote to memory of 268 796 6d10dd70b8dceb476ce2710a4cac4ce80006dd7c59469b9db4a55e5e5b0dbbbb.exe 27 PID 796 wrote to memory of 268 796 6d10dd70b8dceb476ce2710a4cac4ce80006dd7c59469b9db4a55e5e5b0dbbbb.exe 27 PID 796 wrote to memory of 268 796 6d10dd70b8dceb476ce2710a4cac4ce80006dd7c59469b9db4a55e5e5b0dbbbb.exe 27 PID 796 wrote to memory of 268 796 6d10dd70b8dceb476ce2710a4cac4ce80006dd7c59469b9db4a55e5e5b0dbbbb.exe 27 PID 796 wrote to memory of 268 796 6d10dd70b8dceb476ce2710a4cac4ce80006dd7c59469b9db4a55e5e5b0dbbbb.exe 27 PID 796 wrote to memory of 268 796 6d10dd70b8dceb476ce2710a4cac4ce80006dd7c59469b9db4a55e5e5b0dbbbb.exe 27 PID 268 wrote to memory of 1620 268 Windows Update.exe 29 PID 268 wrote to memory of 1620 268 Windows Update.exe 29 PID 268 wrote to memory of 1620 268 Windows Update.exe 29 PID 268 wrote to memory of 1620 268 Windows Update.exe 29 PID 268 wrote to memory of 1620 268 Windows Update.exe 29 PID 268 wrote to memory of 1620 268 Windows Update.exe 29 PID 268 wrote to memory of 1620 268 Windows Update.exe 29 PID 268 wrote to memory of 1620 268 Windows Update.exe 29 PID 268 wrote to memory of 1620 268 Windows Update.exe 29 PID 268 wrote to memory of 1620 268 Windows Update.exe 29 PID 268 wrote to memory of 1736 268 Windows Update.exe 30 PID 268 wrote to memory of 1736 268 Windows Update.exe 30 PID 268 wrote to memory of 1736 268 Windows Update.exe 30 PID 268 wrote to memory of 1736 268 Windows Update.exe 30 PID 268 wrote to memory of 1736 268 Windows Update.exe 30 PID 268 wrote to memory of 1736 268 Windows Update.exe 30 PID 268 wrote to memory of 1736 268 Windows Update.exe 30 PID 268 wrote to memory of 1736 268 Windows Update.exe 30 PID 268 wrote to memory of 1736 268 Windows Update.exe 30 PID 268 wrote to memory of 1736 268 Windows Update.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\6d10dd70b8dceb476ce2710a4cac4ce80006dd7c59469b9db4a55e5e5b0dbbbb.exe"C:\Users\Admin\AppData\Local\Temp\6d10dd70b8dceb476ce2710a4cac4ce80006dd7c59469b9db4a55e5e5b0dbbbb.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:796 -
C:\Users\Admin\AppData\Roaming\Windows Update.exe"C:\Users\Admin\AppData\Roaming\Windows Update.exe"2⤵
- Executes dropped EXE
- Deletes itself
- 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
PID:268 -
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
PID:1620
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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⤵PID:1736
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