Analysis Overview
SHA256
772930c5c47fe742b60b441f8150edaa558ba9bbf13fb0f751b7d9dbdd828f21
Threat Level: Known bad
The file 10752297395.zip was found to be: Known bad.
Malicious Activity Summary
HawkEye
Nirsoft
NirSoft MailPassView
Nirsoft
NirSoft WebBrowserPassView
Uses the VBS compiler for execution
Loads dropped DLL
Checks computer location settings
Deletes itself
Executes dropped EXE
Looks up external IP address via web service
Accesses Microsoft Outlook accounts
Adds Run key to start application
Suspicious use of SetThreadContext
Unsigned PE
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK Matrix V6
Analysis: static1
Detonation Overview
Reported
2023-06-12 20:22
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 |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-06-12 20:22
Reported
2023-06-12 20:25
Platform
win7-20230220-en
Max time kernel
150s
Max time network
116s
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 |
| 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 |
| 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 |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Windows Update.exe | N/A |
Executes dropped EXE
| 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\d98055b5dedd4f2cf8f5e018af92c2d8230e520bb32fe5119789c1a9db6a4f0d.exe | N/A |
Uses the VBS compiler for execution
Accesses Microsoft Outlook accounts
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\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-1-5-21-3499517378-2376672570-1134980332-1000\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 1412 set thread context of 1740 | N/A | C:\Users\Admin\AppData\Roaming\Windows Update.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe |
| PID 1412 set thread context of 908 | 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\d98055b5dedd4f2cf8f5e018af92c2d8230e520bb32fe5119789c1a9db6a4f0d.exe
"C:\Users\Admin\AppData\Local\Temp\d98055b5dedd4f2cf8f5e018af92c2d8230e520bb32fe5119789c1a9db6a4f0d.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 |
| NL | 142.250.27.108:587 | smtp.gmail.com | tcp |
| NL | 142.250.27.108:587 | smtp.gmail.com | tcp |
Files
memory/1304-54-0x0000000000490000-0x00000000004D0000-memory.dmp
\Users\Admin\AppData\Roaming\Windows Update.exe
| MD5 | 31fdba408133d245e8761d8960b8e568 |
| SHA1 | cd2cef468d33024c2dea149f50e0faf7b907130d |
| SHA256 | d98055b5dedd4f2cf8f5e018af92c2d8230e520bb32fe5119789c1a9db6a4f0d |
| SHA512 | 4b144469a74903cb0c8af0a52aaedf3e5b6676ef2c036cd74081c75e3e7d7869d0f4bd14c5914caf68ebc088285fdbda2e74571093c646c17d03179a783a8594 |
C:\Users\Admin\AppData\Roaming\Windows Update.exe
| MD5 | 31fdba408133d245e8761d8960b8e568 |
| SHA1 | cd2cef468d33024c2dea149f50e0faf7b907130d |
| SHA256 | d98055b5dedd4f2cf8f5e018af92c2d8230e520bb32fe5119789c1a9db6a4f0d |
| SHA512 | 4b144469a74903cb0c8af0a52aaedf3e5b6676ef2c036cd74081c75e3e7d7869d0f4bd14c5914caf68ebc088285fdbda2e74571093c646c17d03179a783a8594 |
C:\Users\Admin\AppData\Roaming\Windows Update.exe
| MD5 | 31fdba408133d245e8761d8960b8e568 |
| SHA1 | cd2cef468d33024c2dea149f50e0faf7b907130d |
| SHA256 | d98055b5dedd4f2cf8f5e018af92c2d8230e520bb32fe5119789c1a9db6a4f0d |
| SHA512 | 4b144469a74903cb0c8af0a52aaedf3e5b6676ef2c036cd74081c75e3e7d7869d0f4bd14c5914caf68ebc088285fdbda2e74571093c646c17d03179a783a8594 |
memory/1412-63-0x0000000000590000-0x00000000005D0000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\SysInfo.txt
| MD5 | 3e584bc9e5182d81e22464ca9d69f641 |
| SHA1 | c8456dea7d64d6edb0e109078ec589bdf5eaaff0 |
| SHA256 | 71d301b79fcbfe0aaa3b5434c6bad96dfcd874b9f943adaf5563b31880548369 |
| SHA512 | 3bfbc10b1c29fbc26af2730b2237aa0257f5221036270dddaf484bca1488bd1f9927bc63bbff4fa813fa866535122cc722a8def2cd561a34bf0f41808d8b75d7 |
C:\Users\Admin\AppData\Roaming\WindowsUpdate.exe
| MD5 | 31fdba408133d245e8761d8960b8e568 |
| SHA1 | cd2cef468d33024c2dea149f50e0faf7b907130d |
| SHA256 | d98055b5dedd4f2cf8f5e018af92c2d8230e520bb32fe5119789c1a9db6a4f0d |
| SHA512 | 4b144469a74903cb0c8af0a52aaedf3e5b6676ef2c036cd74081c75e3e7d7869d0f4bd14c5914caf68ebc088285fdbda2e74571093c646c17d03179a783a8594 |
memory/1412-69-0x0000000000590000-0x00000000005D0000-memory.dmp
memory/1740-70-0x0000000000400000-0x000000000041B000-memory.dmp
memory/1740-72-0x0000000000400000-0x000000000041B000-memory.dmp
memory/1740-73-0x0000000000400000-0x000000000041B000-memory.dmp
memory/1412-74-0x0000000000590000-0x00000000005D0000-memory.dmp
memory/1740-75-0x0000000000420000-0x0000000000487000-memory.dmp
memory/1740-76-0x0000000000400000-0x000000000041B000-memory.dmp
memory/908-77-0x0000000000400000-0x0000000000458000-memory.dmp
memory/908-79-0x0000000000400000-0x0000000000458000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\holderwb.txt
| MD5 | f3b25701fe362ec84616a93a45ce9998 |
| SHA1 | d62636d8caec13f04e28442a0a6fa1afeb024bbb |
| SHA256 | b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209 |
| SHA512 | 98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84 |
memory/908-82-0x0000000000400000-0x0000000000458000-memory.dmp
memory/1412-84-0x0000000000590000-0x00000000005D0000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-06-12 20:22
Reported
2023-06-12 20:25
Platform
win10v2004-20230221-en
Max time kernel
150s
Max time network
144s
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 |
| 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 |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\d98055b5dedd4f2cf8f5e018af92c2d8230e520bb32fe5119789c1a9db6a4f0d.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Windows Update.exe | N/A |
Uses the VBS compiler for execution
Accesses Microsoft Outlook accounts
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\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-1-5-21-2805025096-2326403612-4231045514-1000\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 |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 5072 set thread context of 4676 | N/A | C:\Users\Admin\AppData\Roaming\Windows Update.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe |
| PID 5072 set thread context of 1744 | 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\d98055b5dedd4f2cf8f5e018af92c2d8230e520bb32fe5119789c1a9db6a4f0d.exe
"C:\Users\Admin\AppData\Local\Temp\d98055b5dedd4f2cf8f5e018af92c2d8230e520bb32fe5119789c1a9db6a4f0d.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 | 93.184.221.240:80 | tcp | |
| US | 8.8.8.8:53 | 123.108.74.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 76.38.195.152.in-addr.arpa | udp |
| 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 | 8.8.8.8:53 | smtp.gmail.com | udp |
| NL | 142.250.27.109:587 | smtp.gmail.com | tcp |
| US | 8.8.8.8:53 | 36.155.16.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 109.27.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| NL | 142.250.27.109:587 | smtp.gmail.com | tcp |
| US | 52.152.110.14:443 | tcp | |
| US | 20.189.173.4:443 | tcp | |
| NL | 173.223.113.164:443 | tcp | |
| NL | 173.223.113.131:80 | tcp | |
| US | 204.79.197.203:80 | tcp | |
| US | 52.152.110.14:443 | tcp | |
| US | 52.152.110.14:443 | tcp | |
| US | 93.184.221.240:80 | tcp | |
| US | 8.8.8.8:53 | 233.141.123.20.in-addr.arpa | udp |
| US | 52.152.110.14:443 | tcp | |
| US | 52.152.110.14:443 | tcp | |
| US | 52.152.110.14:443 | tcp |
Files
memory/2364-133-0x0000000001130000-0x0000000001140000-memory.dmp
C:\Users\Admin\AppData\Roaming\Windows Update.exe
| MD5 | 31fdba408133d245e8761d8960b8e568 |
| SHA1 | cd2cef468d33024c2dea149f50e0faf7b907130d |
| SHA256 | d98055b5dedd4f2cf8f5e018af92c2d8230e520bb32fe5119789c1a9db6a4f0d |
| SHA512 | 4b144469a74903cb0c8af0a52aaedf3e5b6676ef2c036cd74081c75e3e7d7869d0f4bd14c5914caf68ebc088285fdbda2e74571093c646c17d03179a783a8594 |
memory/2364-143-0x0000000001130000-0x0000000001140000-memory.dmp
C:\Users\Admin\AppData\Roaming\Windows Update.exe
| MD5 | 31fdba408133d245e8761d8960b8e568 |
| SHA1 | cd2cef468d33024c2dea149f50e0faf7b907130d |
| SHA256 | d98055b5dedd4f2cf8f5e018af92c2d8230e520bb32fe5119789c1a9db6a4f0d |
| SHA512 | 4b144469a74903cb0c8af0a52aaedf3e5b6676ef2c036cd74081c75e3e7d7869d0f4bd14c5914caf68ebc088285fdbda2e74571093c646c17d03179a783a8594 |
C:\Users\Admin\AppData\Roaming\Windows Update.exe
| MD5 | 31fdba408133d245e8761d8960b8e568 |
| SHA1 | cd2cef468d33024c2dea149f50e0faf7b907130d |
| SHA256 | d98055b5dedd4f2cf8f5e018af92c2d8230e520bb32fe5119789c1a9db6a4f0d |
| SHA512 | 4b144469a74903cb0c8af0a52aaedf3e5b6676ef2c036cd74081c75e3e7d7869d0f4bd14c5914caf68ebc088285fdbda2e74571093c646c17d03179a783a8594 |
memory/5072-148-0x00000000013A0000-0x00000000013B0000-memory.dmp
memory/5072-149-0x00000000013A0000-0x00000000013B0000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\SysInfo.txt
| MD5 | 3e584bc9e5182d81e22464ca9d69f641 |
| SHA1 | c8456dea7d64d6edb0e109078ec589bdf5eaaff0 |
| SHA256 | 71d301b79fcbfe0aaa3b5434c6bad96dfcd874b9f943adaf5563b31880548369 |
| SHA512 | 3bfbc10b1c29fbc26af2730b2237aa0257f5221036270dddaf484bca1488bd1f9927bc63bbff4fa813fa866535122cc722a8def2cd561a34bf0f41808d8b75d7 |
memory/4676-155-0x0000000000400000-0x000000000041B000-memory.dmp
memory/4676-157-0x0000000000400000-0x000000000041B000-memory.dmp
memory/4676-159-0x0000000000400000-0x000000000041B000-memory.dmp
memory/5072-160-0x00000000013A0000-0x00000000013B0000-memory.dmp
memory/5072-161-0x00000000013A0000-0x00000000013B0000-memory.dmp
memory/1744-162-0x0000000000400000-0x0000000000458000-memory.dmp
memory/1744-164-0x0000000000400000-0x0000000000458000-memory.dmp
memory/1744-168-0x0000000000400000-0x0000000000458000-memory.dmp
memory/1744-172-0x0000000000400000-0x0000000000458000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\holderwb.txt
| MD5 | f94dc819ca773f1e3cb27abbc9e7fa27 |
| SHA1 | 9a7700efadc5ea09ab288544ef1e3cd876255086 |
| SHA256 | a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92 |
| SHA512 | 72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196 |