Analysis Overview
SHA256
6d10dd70b8dceb476ce2710a4cac4ce80006dd7c59469b9db4a55e5e5b0dbbbb
Threat Level: Known bad
The file 6d10dd70b8dceb476ce2710a4cac4ce80006dd7c59469b9db4a55e5e5b0dbbbb was found to be: Known bad.
Malicious Activity Summary
HawkEye
Nirsoft
NirSoft MailPassView
Nirsoft
NirSoft WebBrowserPassView
Executes dropped EXE
Uses the VBS compiler for execution
Reads user/profile data of web browsers
Loads dropped DLL
Deletes itself
Adds Run key to start application
Accesses Microsoft Outlook accounts
Looks up external IP address via web service
Suspicious use of SetThreadContext
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-03-10 02:33
Signatures
Nirsoft
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
NirSoft MailPassView
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
NirSoft WebBrowserPassView
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2022-03-10 02:33
Reported
2022-03-10 02:36
Platform
win7-en-20211208
Max time kernel
150s
Max time network
138s
Command Line
Signatures
HawkEye
NirSoft MailPassView
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
NirSoft WebBrowserPassView
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Nirsoft
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Windows Update.exe | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Windows Update.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\6d10dd70b8dceb476ce2710a4cac4ce80006dd7c59469b9db4a55e5e5b0dbbbb.exe | N/A |
Reads user/profile data of web browsers
Uses the VBS compiler for execution
Accesses Microsoft Outlook accounts
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| 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" | C:\Users\Admin\AppData\Roaming\Windows Update.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | whatismyipaddress.com | N/A | N/A |
| N/A | whatismyipaddress.com | N/A | N/A |
| N/A | whatismyipaddress.com | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 268 set thread context of 1620 | N/A | C:\Users\Admin\AppData\Roaming\Windows Update.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe |
| PID 268 set thread context of 1736 | N/A | C:\Users\Admin\AppData\Roaming\Windows Update.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\Windows Update.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Windows Update.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\6d10dd70b8dceb476ce2710a4cac4ce80006dd7c59469b9db4a55e5e5b0dbbbb.exe
"C:\Users\Admin\AppData\Local\Temp\6d10dd70b8dceb476ce2710a4cac4ce80006dd7c59469b9db4a55e5e5b0dbbbb.exe"
C:\Users\Admin\AppData\Roaming\Windows Update.exe
"C:\Users\Admin\AppData\Roaming\Windows Update.exe"
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | whatismyipaddress.com | udp |
| US | 104.16.155.36:80 | whatismyipaddress.com | tcp |
| US | 104.16.155.36:443 | whatismyipaddress.com | tcp |
| US | 104.16.155.36:443 | whatismyipaddress.com | tcp |
| US | 8.8.8.8:53 | smtp.gmail.com | udp |
| US | 142.250.102.109:587 | smtp.gmail.com | tcp |
| US | 142.250.102.109:587 | smtp.gmail.com | tcp |
Files
memory/796-54-0x0000000075B11000-0x0000000075B13000-memory.dmp
memory/796-55-0x0000000074B70000-0x000000007511B000-memory.dmp
memory/796-56-0x0000000000BE0000-0x0000000000BE1000-memory.dmp
memory/796-57-0x0000000074B70000-0x000000007511B000-memory.dmp
\Users\Admin\AppData\Roaming\Windows Update.exe
| MD5 | 3750a882d6c8cfcd5a9e883311624df3 |
| SHA1 | 28a1dd4675a65f7046c8aea5497d9ece3473e194 |
| SHA256 | 6d10dd70b8dceb476ce2710a4cac4ce80006dd7c59469b9db4a55e5e5b0dbbbb |
| SHA512 | 2d3d015491dcebbe54d8f3a74f08ce0151fa836dbd75fffb66b1bd603adb0bddf3a0f6345bbe6a0e4e7babbef5f7d06084814c11220720285c2bf1fd98e3f049 |
C:\Users\Admin\AppData\Roaming\Windows Update.exe
| MD5 | 3750a882d6c8cfcd5a9e883311624df3 |
| SHA1 | 28a1dd4675a65f7046c8aea5497d9ece3473e194 |
| SHA256 | 6d10dd70b8dceb476ce2710a4cac4ce80006dd7c59469b9db4a55e5e5b0dbbbb |
| SHA512 | 2d3d015491dcebbe54d8f3a74f08ce0151fa836dbd75fffb66b1bd603adb0bddf3a0f6345bbe6a0e4e7babbef5f7d06084814c11220720285c2bf1fd98e3f049 |
C:\Users\Admin\AppData\Roaming\Windows Update.exe
| MD5 | 3750a882d6c8cfcd5a9e883311624df3 |
| SHA1 | 28a1dd4675a65f7046c8aea5497d9ece3473e194 |
| SHA256 | 6d10dd70b8dceb476ce2710a4cac4ce80006dd7c59469b9db4a55e5e5b0dbbbb |
| SHA512 | 2d3d015491dcebbe54d8f3a74f08ce0151fa836dbd75fffb66b1bd603adb0bddf3a0f6345bbe6a0e4e7babbef5f7d06084814c11220720285c2bf1fd98e3f049 |
memory/268-63-0x0000000001D90000-0x0000000001D91000-memory.dmp
memory/268-62-0x0000000074B70000-0x000000007511B000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\SysInfo.txt
| MD5 | 50be8fdb60243b6447a07b2db9b9ab43 |
| SHA1 | a77f49b4c31b8f46905e0657b4b97d9eac286e6f |
| SHA256 | d0843295572c17e9970761ef9b7af3a3bd7dcdf9a5f121980f8155bf450271a4 |
| SHA512 | f94d3bd30c3b1d1cf76d999ba0662912bb921aa648585d560b8469faf0c7ca64b28c1da1bc80d186685e34f9b4298987804a98890aa146eb1c9e4276dcc7fe20 |
memory/268-65-0x0000000001DA6000-0x0000000001DA7000-memory.dmp
memory/268-66-0x0000000001D95000-0x0000000001DA6000-memory.dmp
memory/1620-67-0x0000000000400000-0x000000000041B000-memory.dmp
memory/1620-70-0x0000000000400000-0x000000000041B000-memory.dmp
memory/1736-71-0x0000000000400000-0x0000000000458000-memory.dmp
memory/1736-74-0x0000000000400000-0x0000000000458000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\holderwb.txt
| MD5 | f3b25701fe362ec84616a93a45ce9998 |
| SHA1 | d62636d8caec13f04e28442a0a6fa1afeb024bbb |
| SHA256 | b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209 |
| SHA512 | 98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84 |
Analysis: behavioral2
Detonation Overview
Submitted
2022-03-10 02:33
Reported
2022-03-10 02:36
Platform
win10v2004-en-20220113
Max time kernel
134s
Max time network
138s
Command Line
Signatures
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1472 wrote to memory of 1652 | N/A | C:\Users\Admin\AppData\Local\Temp\6d10dd70b8dceb476ce2710a4cac4ce80006dd7c59469b9db4a55e5e5b0dbbbb.exe | C:\Windows\SysWOW64\fondue.exe |
| PID 1472 wrote to memory of 1652 | N/A | C:\Users\Admin\AppData\Local\Temp\6d10dd70b8dceb476ce2710a4cac4ce80006dd7c59469b9db4a55e5e5b0dbbbb.exe | C:\Windows\SysWOW64\fondue.exe |
| PID 1472 wrote to memory of 1652 | N/A | C:\Users\Admin\AppData\Local\Temp\6d10dd70b8dceb476ce2710a4cac4ce80006dd7c59469b9db4a55e5e5b0dbbbb.exe | C:\Windows\SysWOW64\fondue.exe |
| PID 1652 wrote to memory of 2384 | N/A | C:\Windows\SysWOW64\fondue.exe | C:\Windows\system32\FonDUE.EXE |
| PID 1652 wrote to memory of 2384 | N/A | C:\Windows\SysWOW64\fondue.exe | C:\Windows\system32\FonDUE.EXE |
Processes
C:\Users\Admin\AppData\Local\Temp\6d10dd70b8dceb476ce2710a4cac4ce80006dd7c59469b9db4a55e5e5b0dbbbb.exe
"C:\Users\Admin\AppData\Local\Temp\6d10dd70b8dceb476ce2710a4cac4ce80006dd7c59469b9db4a55e5e5b0dbbbb.exe"
C:\Windows\SysWOW64\fondue.exe
"C:\Windows\system32\fondue.exe" /enable-feature:NetFx3 /caller-name:mscoreei.dll
C:\Windows\system32\FonDUE.EXE
"C:\Windows\sysnative\FonDUE.EXE" /enable-feature:NetFx3 /caller-name:mscoreei.dll