Analysis Overview
SHA256
0b34a3b62a081aaf79b21e11c99e19cae47b59effa40361fb39d195997e92bc6
Threat Level: Known bad
The file 0b34a3b62a081aaf79b21e11c99e19cae47b59effa40361fb39d195997e92bc6 was found to be: Known bad.
Malicious Activity Summary
Nirsoft
HawkEye
NirSoft WebBrowserPassView
NirSoft MailPassView
Nirsoft
Executes dropped EXE
Deletes itself
Loads dropped DLL
Uses the VBS compiler for execution
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 behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-02-22 20:55
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 20:55
Reported
2022-02-22 21:08
Platform
win7-en-20211208
Max time kernel
142s
Max time network
133s
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 |
| 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 |
| 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 |
| 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\0b34a3b62a081aaf79b21e11c99e19cae47b59effa40361fb39d195997e92bc6.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.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 760 set thread context of 1844 | N/A | C:\Users\Admin\AppData\Roaming\Windows Update.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe |
| PID 760 set thread context of 1492 | 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\0b34a3b62a081aaf79b21e11c99e19cae47b59effa40361fb39d195997e92bc6.exe
"C:\Users\Admin\AppData\Local\Temp\0b34a3b62a081aaf79b21e11c99e19cae47b59effa40361fb39d195997e92bc6.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"
C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
dw20.exe -x -s 452
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 | smtp.gmail.com | udp |
| US | 142.250.102.108:587 | smtp.gmail.com | tcp |
| US | 142.250.102.108:587 | smtp.gmail.com | tcp |
Files
memory/1212-54-0x0000000075891000-0x0000000075893000-memory.dmp
memory/1212-56-0x0000000001F30000-0x0000000001F31000-memory.dmp
memory/1212-55-0x0000000074851000-0x0000000074852000-memory.dmp
memory/1212-57-0x0000000074852000-0x0000000074854000-memory.dmp
\Users\Admin\AppData\Roaming\Windows Update.exe
| MD5 | d88af359378d2afd51635420f0b1d817 |
| SHA1 | 1ae351776af8c551d9d5b4a905ead037b354dda9 |
| SHA256 | 0b34a3b62a081aaf79b21e11c99e19cae47b59effa40361fb39d195997e92bc6 |
| SHA512 | 76179ddf5700fe4827181f03e06ba3e135a5af42c1662f3c5fc43dbe6d5653ce5b031ee14fee02b16165d9b40f84da527941353e8be5ae7336a300c73f5fcdb4 |
C:\Users\Admin\AppData\Roaming\Windows Update.exe
| MD5 | d88af359378d2afd51635420f0b1d817 |
| SHA1 | 1ae351776af8c551d9d5b4a905ead037b354dda9 |
| SHA256 | 0b34a3b62a081aaf79b21e11c99e19cae47b59effa40361fb39d195997e92bc6 |
| SHA512 | 76179ddf5700fe4827181f03e06ba3e135a5af42c1662f3c5fc43dbe6d5653ce5b031ee14fee02b16165d9b40f84da527941353e8be5ae7336a300c73f5fcdb4 |
C:\Users\Admin\AppData\Roaming\Windows Update.exe
| MD5 | d88af359378d2afd51635420f0b1d817 |
| SHA1 | 1ae351776af8c551d9d5b4a905ead037b354dda9 |
| SHA256 | 0b34a3b62a081aaf79b21e11c99e19cae47b59effa40361fb39d195997e92bc6 |
| SHA512 | 76179ddf5700fe4827181f03e06ba3e135a5af42c1662f3c5fc43dbe6d5653ce5b031ee14fee02b16165d9b40f84da527941353e8be5ae7336a300c73f5fcdb4 |
C:\Users\Admin\AppData\Local\Temp\SysInfo.txt
| MD5 | 2283d59b084aad6ef79af23ec587ccf1 |
| SHA1 | 8bb2059644e75c494d4c3c935e2f77a3c50155ed |
| SHA256 | b6e00a888ffc1e8640a7318f518514112fe143f091eb84c263ae6b33216f7a24 |
| SHA512 | 4ec3925ce652023760e658b89842e6ff1ce11f631bd6a6cde7350cb7f1f6bd6d5b3c2dbbfefe675db9b155e6243f65ce9e858707ac6111b94933f94ed2d1e9a0 |
memory/760-64-0x0000000001FF0000-0x0000000001FF1000-memory.dmp
memory/760-63-0x0000000074851000-0x0000000074852000-memory.dmp
memory/760-65-0x0000000074852000-0x0000000074854000-memory.dmp
memory/760-66-0x0000000002006000-0x0000000002007000-memory.dmp
memory/1844-67-0x0000000000400000-0x000000000041B000-memory.dmp
memory/1844-69-0x0000000000400000-0x000000000041B000-memory.dmp
memory/1492-70-0x0000000000400000-0x0000000000458000-memory.dmp
memory/1492-72-0x0000000000400000-0x0000000000458000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\holderwb.txt
| MD5 | f3b25701fe362ec84616a93a45ce9998 |
| SHA1 | d62636d8caec13f04e28442a0a6fa1afeb024bbb |
| SHA256 | b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209 |
| SHA512 | 98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84 |
\Users\Admin\AppData\Roaming\Windows Update.exe
| MD5 | d88af359378d2afd51635420f0b1d817 |
| SHA1 | 1ae351776af8c551d9d5b4a905ead037b354dda9 |
| SHA256 | 0b34a3b62a081aaf79b21e11c99e19cae47b59effa40361fb39d195997e92bc6 |
| SHA512 | 76179ddf5700fe4827181f03e06ba3e135a5af42c1662f3c5fc43dbe6d5653ce5b031ee14fee02b16165d9b40f84da527941353e8be5ae7336a300c73f5fcdb4 |
memory/1616-76-0x0000000001E40000-0x0000000001E41000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-02-22 20:55
Reported
2022-02-22 21:09
Platform
win10v2004-en-20220112
Max time kernel
101s
Max time network
173s
Command Line
Signatures
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1784 wrote to memory of 3496 | N/A | C:\Users\Admin\AppData\Local\Temp\0b34a3b62a081aaf79b21e11c99e19cae47b59effa40361fb39d195997e92bc6.exe | C:\Windows\SysWOW64\fondue.exe |
| PID 1784 wrote to memory of 3496 | N/A | C:\Users\Admin\AppData\Local\Temp\0b34a3b62a081aaf79b21e11c99e19cae47b59effa40361fb39d195997e92bc6.exe | C:\Windows\SysWOW64\fondue.exe |
| PID 1784 wrote to memory of 3496 | N/A | C:\Users\Admin\AppData\Local\Temp\0b34a3b62a081aaf79b21e11c99e19cae47b59effa40361fb39d195997e92bc6.exe | C:\Windows\SysWOW64\fondue.exe |
| PID 3496 wrote to memory of 1416 | N/A | C:\Windows\SysWOW64\fondue.exe | C:\Windows\system32\FonDUE.EXE |
| PID 3496 wrote to memory of 1416 | N/A | C:\Windows\SysWOW64\fondue.exe | C:\Windows\system32\FonDUE.EXE |
Processes
C:\Users\Admin\AppData\Local\Temp\0b34a3b62a081aaf79b21e11c99e19cae47b59effa40361fb39d195997e92bc6.exe
"C:\Users\Admin\AppData\Local\Temp\0b34a3b62a081aaf79b21e11c99e19cae47b59effa40361fb39d195997e92bc6.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 | 104.80.228.57:443 | tcp | |
| US | 93.184.220.29:80 | tcp | |
| US | 8.8.8.8:53 | geo.prod.do.dsp.mp.microsoft.com | udp |
| US | 52.184.217.20:443 | 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 |