Analysis Overview
SHA256
663d8c19b6d0c03bb3712ffcedac0462959a2575747ab77404202e7aaa0fd394
Threat Level: Known bad
The file 663d8c19b6d0c03bb3712ffcedac0462959a2575747ab77404202e7aaa0fd394 was found to be: Known bad.
Malicious Activity Summary
HawkEye
Nirsoft
Nirsoft
NirSoft WebBrowserPassView
NirSoft MailPassView
Executes dropped EXE
Uses the VBS compiler for execution
Deletes itself
Loads dropped DLL
Looks up external IP address via web service
Adds Run key to start application
Accesses Microsoft Outlook accounts
Suspicious use of SetThreadContext
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-03-10 04:30
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 04:30
Reported
2022-03-11 00:25
Platform
win7-20220223-en
Max time kernel
4294195s
Max time network
127s
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\663d8c19b6d0c03bb3712ffcedac0462959a2575747ab77404202e7aaa0fd394.exe | N/A |
Uses the VBS compiler for execution
Accesses Microsoft Outlook accounts
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\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-1-5-21-1405931862-909307831-4085185274-1000\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 1792 set thread context of 1764 | N/A | C:\Users\Admin\AppData\Roaming\Windows Update.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe |
| PID 1792 set thread context of 1328 | 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\663d8c19b6d0c03bb3712ffcedac0462959a2575747ab77404202e7aaa0fd394.exe
"C:\Users\Admin\AppData\Local\Temp\663d8c19b6d0c03bb3712ffcedac0462959a2575747ab77404202e7aaa0fd394.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 | 104.16.154.36:80 | whatismyipaddress.com | tcp |
| US | 104.16.154.36:443 | whatismyipaddress.com | tcp |
| US | 104.16.154.36:443 | 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/1692-54-0x0000000076731000-0x0000000076733000-memory.dmp
memory/1692-56-0x00000000022E0000-0x00000000022E1000-memory.dmp
memory/1692-55-0x0000000074D20000-0x00000000752CB000-memory.dmp
memory/1692-57-0x0000000074D20000-0x00000000752CB000-memory.dmp
\Users\Admin\AppData\Roaming\Windows Update.exe
| MD5 | 226c62aab7bab3aca802a22b261f844f |
| SHA1 | f00002fd6cea1c847d6df67b44846092c25003c5 |
| SHA256 | 663d8c19b6d0c03bb3712ffcedac0462959a2575747ab77404202e7aaa0fd394 |
| SHA512 | 1ef359486245bd53b93f91fe34709d7398682123ee373c20439ba42bf5511850d29f418743b9a9992511d6919220d3e2d8f68be5ebec7127073fd31ff10802fc |
C:\Users\Admin\AppData\Roaming\Windows Update.exe
| MD5 | 226c62aab7bab3aca802a22b261f844f |
| SHA1 | f00002fd6cea1c847d6df67b44846092c25003c5 |
| SHA256 | 663d8c19b6d0c03bb3712ffcedac0462959a2575747ab77404202e7aaa0fd394 |
| SHA512 | 1ef359486245bd53b93f91fe34709d7398682123ee373c20439ba42bf5511850d29f418743b9a9992511d6919220d3e2d8f68be5ebec7127073fd31ff10802fc |
C:\Users\Admin\AppData\Roaming\Windows Update.exe
| MD5 | 226c62aab7bab3aca802a22b261f844f |
| SHA1 | f00002fd6cea1c847d6df67b44846092c25003c5 |
| SHA256 | 663d8c19b6d0c03bb3712ffcedac0462959a2575747ab77404202e7aaa0fd394 |
| SHA512 | 1ef359486245bd53b93f91fe34709d7398682123ee373c20439ba42bf5511850d29f418743b9a9992511d6919220d3e2d8f68be5ebec7127073fd31ff10802fc |
C:\Users\Admin\AppData\Local\Temp\SysInfo.txt
| MD5 | 367fd6eae630c3ccf51f45629c016aea |
| SHA1 | 1fc6d420acf7373317eb732acefc3bc1be93b269 |
| SHA256 | 226ff9049ee09e784bca674c7c68ba8ac76566643c0d44705be7233cb2150983 |
| SHA512 | 1cb4fdd2dc0741f60bd3df7bd4e4904548431d442f57ad4ee823042fa8f166bfe8ee615468315ef5b228aa8342b95809ac8d3cf6c34c5d2e3c9a3f768a3cbd0a |
memory/1792-63-0x0000000074D20000-0x00000000752CB000-memory.dmp
memory/1792-64-0x00000000003F0000-0x00000000003F1000-memory.dmp
memory/1792-65-0x0000000074D20000-0x00000000752CB000-memory.dmp
memory/1792-66-0x0000000000406000-0x0000000000407000-memory.dmp
memory/1764-67-0x0000000000400000-0x000000000041B000-memory.dmp
memory/1764-70-0x0000000000400000-0x000000000041B000-memory.dmp
memory/1328-71-0x0000000000400000-0x0000000000458000-memory.dmp
memory/1328-74-0x0000000000400000-0x0000000000458000-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 04:30
Reported
2022-03-11 00:26
Platform
win10v2004-en-20220113
Max time kernel
144s
Max time network
154s
Command Line
Signatures
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1908 wrote to memory of 2004 | N/A | C:\Users\Admin\AppData\Local\Temp\663d8c19b6d0c03bb3712ffcedac0462959a2575747ab77404202e7aaa0fd394.exe | C:\Windows\SysWOW64\fondue.exe |
| PID 1908 wrote to memory of 2004 | N/A | C:\Users\Admin\AppData\Local\Temp\663d8c19b6d0c03bb3712ffcedac0462959a2575747ab77404202e7aaa0fd394.exe | C:\Windows\SysWOW64\fondue.exe |
| PID 1908 wrote to memory of 2004 | N/A | C:\Users\Admin\AppData\Local\Temp\663d8c19b6d0c03bb3712ffcedac0462959a2575747ab77404202e7aaa0fd394.exe | C:\Windows\SysWOW64\fondue.exe |
| PID 2004 wrote to memory of 2456 | N/A | C:\Windows\SysWOW64\fondue.exe | C:\Windows\system32\FonDUE.EXE |
| PID 2004 wrote to memory of 2456 | N/A | C:\Windows\SysWOW64\fondue.exe | C:\Windows\system32\FonDUE.EXE |
Processes
C:\Users\Admin\AppData\Local\Temp\663d8c19b6d0c03bb3712ffcedac0462959a2575747ab77404202e7aaa0fd394.exe
"C:\Users\Admin\AppData\Local\Temp\663d8c19b6d0c03bb3712ffcedac0462959a2575747ab77404202e7aaa0fd394.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