Analysis Overview
SHA256
091709c91bf867d749c68e55757c65ddedd2677a6fc851f4257b0e3a35bbaf9b
Threat Level: Known bad
The file 091709c91bf867d749c68e55757c65ddedd2677a6fc851f4257b0e3a35bbaf9b was found to be: Known bad.
Malicious Activity Summary
HawkEye
Nirsoft
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Executes dropped EXE
Loads dropped DLL
Uses the VBS compiler for execution
Deletes itself
Looks up external IP address via web service
Accesses Microsoft Outlook accounts
Adds Run key to start application
Suspicious use of SetThreadContext
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-02-22 21:46
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
2022-02-22 21:46
Reported
2022-02-22 22:07
Platform
win7-en-20211208
Max time kernel
139s
Max time network
135s
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\091709c91bf867d749c68e55757c65ddedd2677a6fc851f4257b0e3a35bbaf9b.exe | N/A |
Uses the VBS compiler for execution
Accesses Microsoft Outlook accounts
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\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-1-5-21-3846991908-3261386348-1409841751-1000\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 756 set thread context of 832 | N/A | C:\Users\Admin\AppData\Roaming\Windows Update.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe |
| PID 756 set thread context of 1724 | 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
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Windows Update.exe | N/A |
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\091709c91bf867d749c68e55757c65ddedd2677a6fc851f4257b0e3a35bbaf9b.exe
"C:\Users\Admin\AppData\Local\Temp\091709c91bf867d749c68e55757c65ddedd2677a6fc851f4257b0e3a35bbaf9b.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 | mail.molinense.com | udp |
| DE | 35.159.5.169:587 | mail.molinense.com | tcp |
| DE | 35.159.5.169:587 | mail.molinense.com | tcp |
Files
memory/1712-54-0x0000000074BC1000-0x0000000074BC2000-memory.dmp
memory/1712-55-0x0000000076911000-0x0000000076913000-memory.dmp
memory/1712-57-0x0000000074BC2000-0x0000000074BC4000-memory.dmp
memory/1712-56-0x0000000000C30000-0x0000000000C31000-memory.dmp
\Users\Admin\AppData\Roaming\Windows Update.exe
| MD5 | 1a842c3d092c167328dfe60d09f21c31 |
| SHA1 | ae439a9bc46d6beaeaa14119d4008430f8babd99 |
| SHA256 | 091709c91bf867d749c68e55757c65ddedd2677a6fc851f4257b0e3a35bbaf9b |
| SHA512 | e882c7a3dd6a239b9cdd77bb8f64405bd3e5b4e13942470db414d46651c1a85213b16c01448ebffc4f8118cace4edc3ae5fdf421abcbbbb3e276e88e7122c9d3 |
C:\Users\Admin\AppData\Roaming\Windows Update.exe
| MD5 | 1a842c3d092c167328dfe60d09f21c31 |
| SHA1 | ae439a9bc46d6beaeaa14119d4008430f8babd99 |
| SHA256 | 091709c91bf867d749c68e55757c65ddedd2677a6fc851f4257b0e3a35bbaf9b |
| SHA512 | e882c7a3dd6a239b9cdd77bb8f64405bd3e5b4e13942470db414d46651c1a85213b16c01448ebffc4f8118cace4edc3ae5fdf421abcbbbb3e276e88e7122c9d3 |
C:\Users\Admin\AppData\Roaming\Windows Update.exe
| MD5 | 1a842c3d092c167328dfe60d09f21c31 |
| SHA1 | ae439a9bc46d6beaeaa14119d4008430f8babd99 |
| SHA256 | 091709c91bf867d749c68e55757c65ddedd2677a6fc851f4257b0e3a35bbaf9b |
| SHA512 | e882c7a3dd6a239b9cdd77bb8f64405bd3e5b4e13942470db414d46651c1a85213b16c01448ebffc4f8118cace4edc3ae5fdf421abcbbbb3e276e88e7122c9d3 |
memory/756-63-0x0000000000C30000-0x0000000000C31000-memory.dmp
memory/756-64-0x0000000074BC2000-0x0000000074BC4000-memory.dmp
memory/756-62-0x0000000074BC1000-0x0000000074BC2000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\SysInfo.txt
| MD5 | 0c0cf434a02f9fedc1a7382beecf3c7b |
| SHA1 | d1728b3a7a227f2ab6e1fb36478bc9339c42c12e |
| SHA256 | 1c09db49894bfc340f1420de02909b0e220accd352e502c00aac1269b4831999 |
| SHA512 | def2a2b2f3464c755b963a2ac30f6ded7a1710a6c171fb08f0dca9c5e4d6f4e71d1774a33280ca0cac658c6b1c0dda1c150b57f7411c41f7eb9c2c13c4f56517 |
memory/756-66-0x0000000000C46000-0x0000000000C47000-memory.dmp
memory/832-67-0x0000000000400000-0x000000000041B000-memory.dmp
memory/832-69-0x0000000000400000-0x000000000041B000-memory.dmp
memory/1724-70-0x0000000000400000-0x0000000000458000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\holderwb.txt
| MD5 | f3b25701fe362ec84616a93a45ce9998 |
| SHA1 | d62636d8caec13f04e28442a0a6fa1afeb024bbb |
| SHA256 | b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209 |
| SHA512 | 98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84 |
memory/1724-73-0x0000000000400000-0x0000000000458000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-02-22 21:46
Reported
2022-02-22 22:07
Platform
win10v2004-en-20220112
Max time kernel
173s
Max time network
186s
Command Line
Signatures
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1800 wrote to memory of 4008 | N/A | C:\Users\Admin\AppData\Local\Temp\091709c91bf867d749c68e55757c65ddedd2677a6fc851f4257b0e3a35bbaf9b.exe | C:\Windows\SysWOW64\fondue.exe |
| PID 1800 wrote to memory of 4008 | N/A | C:\Users\Admin\AppData\Local\Temp\091709c91bf867d749c68e55757c65ddedd2677a6fc851f4257b0e3a35bbaf9b.exe | C:\Windows\SysWOW64\fondue.exe |
| PID 1800 wrote to memory of 4008 | N/A | C:\Users\Admin\AppData\Local\Temp\091709c91bf867d749c68e55757c65ddedd2677a6fc851f4257b0e3a35bbaf9b.exe | C:\Windows\SysWOW64\fondue.exe |
| PID 4008 wrote to memory of 3568 | N/A | C:\Windows\SysWOW64\fondue.exe | C:\Windows\system32\FonDUE.EXE |
| PID 4008 wrote to memory of 3568 | N/A | C:\Windows\SysWOW64\fondue.exe | C:\Windows\system32\FonDUE.EXE |
Processes
C:\Users\Admin\AppData\Local\Temp\091709c91bf867d749c68e55757c65ddedd2677a6fc851f4257b0e3a35bbaf9b.exe
"C:\Users\Admin\AppData\Local\Temp\091709c91bf867d749c68e55757c65ddedd2677a6fc851f4257b0e3a35bbaf9b.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
Network
| Country | Destination | Domain | Proto |
| NL | 92.123.77.56:80 | tcp | |
| NL | 67.26.105.254:80 | tcp | |
| NL | 104.80.224.57:443 | tcp | |
| US | 93.184.220.29:80 | tcp | |
| US | 8.8.8.8:53 | geo.prod.do.dsp.mp.microsoft.com | udp |
| US | 52.184.213.21:443 | geo.prod.do.dsp.mp.microsoft.com | tcp |
| US | 8.8.8.8:53 | kv801.prod.do.dsp.mp.microsoft.com | udp |
| NL | 184.29.205.60:443 | kv801.prod.do.dsp.mp.microsoft.com | tcp |
| US | 8.8.8.8:53 | cp801.prod.do.dsp.mp.microsoft.com | udp |
| NL | 184.29.205.60:443 | cp801.prod.do.dsp.mp.microsoft.com | tcp |
| NL | 184.29.205.60:443 | cp801.prod.do.dsp.mp.microsoft.com | tcp |
| US | 8.8.8.8:53 | cp801.prod.do.dsp.mp.microsoft.com | udp |
| NL | 184.29.205.60:443 | cp801.prod.do.dsp.mp.microsoft.com | tcp |
| NL | 184.29.205.60:443 | cp801.prod.do.dsp.mp.microsoft.com | tcp |