Analysis Overview
SHA256
1f998c6032159b469178389d2cc6debf14c810bd11b3be86a374ee7608d11cac
Threat Level: Known bad
The file PO#894.exe was found to be: Known bad.
Malicious Activity Summary
HawkEye
Nirsoft
NirSoft WebBrowserPassView
Looks for VirtualBox Guest Additions in registry
NirSoft MailPassView
Looks for VMWare Tools registry key
Uses the VBS compiler for execution
Checks computer location settings
Checks BIOS information in registry
Accesses Microsoft Outlook accounts
Maps connected drives based on registry
Adds Run key to start application
Looks up external IP address via web service
Suspicious use of SetThreadContext
Enumerates physical storage devices
Unsigned PE
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
MITRE ATT&CK Matrix V6
Analysis: static1
Detonation Overview
Reported
2023-07-07 15:22
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2023-07-07 15:22
Reported
2023-07-07 15:24
Platform
win10v2004-20230703-en
Max time kernel
142s
Max time network
150s
Command Line
Signatures
HawkEye
Looks for VirtualBox Guest Additions in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | N/A |
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 |
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 |
| N/A | N/A | N/A | N/A |
Looks for VMWare Tools registry key
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\VMware, Inc.\VMware Tools | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | N/A |
Checks BIOS information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | N/A |
Uses the VBS compiler for execution
Accesses Microsoft Outlook accounts
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\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-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Users\\Admin\\AppData\\Roaming\\WindowsUpdate.exe" | C:\Users\Admin\AppData\Local\Temp\PO#894.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 |
Maps connected drives based on registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1220 set thread context of 1048 | N/A | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | C:\Users\Admin\AppData\Local\Temp\PO#894.exe |
| PID 1048 set thread context of 2692 | N/A | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe |
| PID 1048 set thread context of 2144 | N/A | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\PO#894.exe
"C:\Users\Admin\AppData\Local\Temp\PO#894.exe"
C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vIAIAyAXewJvJh" /XML "C:\Users\Admin\AppData\Local\Temp\tmp31B9.tmp"
C:\Users\Admin\AppData\Local\Temp\PO#894.exe
"{path}"
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 | 68.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 254.20.238.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 254.134.241.8.in-addr.arpa | udp |
| 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 | 8.8.8.8:53 | 36.154.16.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | ftp.lucd.ru | udp |
| RO | 91.235.116.232:21 | ftp.lucd.ru | tcp |
| RO | 91.235.116.232:62791 | ftp.lucd.ru | tcp |
| US | 8.8.8.8:53 | 232.116.235.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 63.13.109.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 170.117.168.52.in-addr.arpa | udp |
Files
memory/1220-133-0x0000000000BF0000-0x0000000000D70000-memory.dmp
memory/1220-134-0x0000000005750000-0x00000000057EC000-memory.dmp
memory/1220-135-0x0000000005DA0000-0x0000000006344000-memory.dmp
memory/1220-136-0x00000000057F0000-0x0000000005882000-memory.dmp
memory/1220-137-0x0000000005960000-0x0000000005970000-memory.dmp
memory/1220-138-0x0000000005710000-0x000000000571A000-memory.dmp
memory/1220-139-0x00000000058F0000-0x0000000005946000-memory.dmp
memory/1220-140-0x0000000005960000-0x0000000005970000-memory.dmp
memory/1220-141-0x0000000007AF0000-0x0000000007B56000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp31B9.tmp
| MD5 | 89fb09170d6cd7b93fbe9113fc8a6479 |
| SHA1 | f9fed34500e3760c721021e63c658b475aa0ba08 |
| SHA256 | e67f4877ad137a41341236933499ba69920cf977a792a76730167167da061506 |
| SHA512 | d03feb672ff604e7feb9c4f794a84b66f788c6aa20c171c676fe2b72b8ffd74f5665f569e686f8a67238377fa664115d109f75c8ae397971ed665c27c719cef0 |
memory/1048-145-0x0000000000400000-0x0000000000488000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PO#894.exe.log
| MD5 | 5200da2e50f24d5d543c3f10674acdcb |
| SHA1 | b574a3336839882d799c0a7f635ea238efb934ee |
| SHA256 | d2d81c1c9d35bc66149beaa77029bee68664d8512fc1efe373180bab77d61026 |
| SHA512 | 24722a7de3250a6027a411c8b79d0720554c4efd59553f54b94ab77dc21efbf3191e0912901db475f08a6e9c1855d9e9594504d80d27300097418f4384a9d9cb |
memory/1048-148-0x0000000005A00000-0x0000000005A10000-memory.dmp
memory/2692-153-0x0000000000400000-0x000000000041B000-memory.dmp
memory/2692-155-0x0000000000400000-0x000000000041B000-memory.dmp
memory/2692-156-0x0000000000420000-0x00000000004E9000-memory.dmp
memory/2692-157-0x0000000000400000-0x000000000041B000-memory.dmp
memory/1048-158-0x0000000005A00000-0x0000000005A10000-memory.dmp
memory/1048-159-0x0000000005A00000-0x0000000005A10000-memory.dmp
memory/2144-160-0x0000000000400000-0x0000000000458000-memory.dmp
memory/2144-162-0x0000000000400000-0x0000000000458000-memory.dmp
memory/1048-166-0x0000000005A00000-0x0000000005A10000-memory.dmp
memory/2144-167-0x0000000000400000-0x0000000000458000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\holderwb.txt
| MD5 | f94dc819ca773f1e3cb27abbc9e7fa27 |
| SHA1 | 9a7700efadc5ea09ab288544ef1e3cd876255086 |
| SHA256 | a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92 |
| SHA512 | 72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196 |
memory/2144-171-0x0000000000400000-0x0000000000458000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2023-07-07 15:22
Reported
2023-07-07 15:24
Platform
win7-20230703-en
Max time kernel
115s
Max time network
118s
Command Line
Signatures
HawkEye
Looks for VirtualBox Guest Additions in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | N/A |
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 |
| 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 |
| 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 |
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| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Looks for VMWare Tools registry key
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | N/A |
Checks BIOS information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | N/A |
Uses the VBS compiler for execution
Accesses Microsoft Outlook accounts
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-719110999-4061093145-1944564496-1000\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-1-5-21-719110999-4061093145-1944564496-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Users\\Admin\\AppData\\Roaming\\WindowsUpdate.exe" | C:\Users\Admin\AppData\Local\Temp\PO#894.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 |
Maps connected drives based on registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2388 set thread context of 788 | N/A | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | C:\Users\Admin\AppData\Local\Temp\PO#894.exe |
| PID 788 set thread context of 2300 | N/A | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe |
| PID 788 set thread context of 2608 | N/A | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\PO#894.exe
"C:\Users\Admin\AppData\Local\Temp\PO#894.exe"
C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vIAIAyAXewJvJh" /XML "C:\Users\Admin\AppData\Local\Temp\tmp51D9.tmp"
C:\Users\Admin\AppData\Local\Temp\PO#894.exe
"{path}"
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 | 8.8.8.8:53 | ftp.lucd.ru | udp |
| RO | 91.235.116.232:21 | ftp.lucd.ru | tcp |
| RO | 91.235.116.232:52742 | ftp.lucd.ru | tcp |
Files
memory/2388-54-0x0000000000850000-0x00000000009D0000-memory.dmp
memory/2388-55-0x0000000004960000-0x00000000049A0000-memory.dmp
memory/2388-56-0x0000000004960000-0x00000000049A0000-memory.dmp
memory/2388-57-0x00000000003B0000-0x00000000003C4000-memory.dmp
memory/2388-58-0x0000000005DE0000-0x0000000005EC4000-memory.dmp
memory/2388-59-0x0000000005EC0000-0x0000000005F64000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp51D9.tmp
| MD5 | 9968ddd6c539ec7ff80356fb6541be1c |
| SHA1 | 43c4843899fc3f17f8f61e1205f217f879aa9e02 |
| SHA256 | 532a21c9f7a4918c0e73ca5b8a6b4859fc151b67257136abd445ec1a5619a35a |
| SHA512 | cee0ae965a3e91f4617e4067611ef751323b5c9d6da9029f65e2c875a3f5cebfaa1ddaa1eaf4ff53626d0622603fdfd8fa8d0b5dbbb18a814f2c1d1a6524ec03 |
memory/788-63-0x0000000000400000-0x0000000000488000-memory.dmp
memory/788-65-0x0000000000400000-0x0000000000488000-memory.dmp
memory/788-66-0x0000000000400000-0x0000000000488000-memory.dmp
memory/788-64-0x0000000000400000-0x0000000000488000-memory.dmp
memory/788-68-0x0000000000400000-0x0000000000488000-memory.dmp
memory/788-67-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/788-70-0x0000000000400000-0x0000000000488000-memory.dmp
memory/788-72-0x0000000000400000-0x0000000000488000-memory.dmp
memory/788-75-0x0000000004F10000-0x0000000004F50000-memory.dmp
memory/788-78-0x0000000002310000-0x0000000002318000-memory.dmp
memory/2300-79-0x0000000000400000-0x000000000041B000-memory.dmp
memory/2300-81-0x0000000000400000-0x000000000041B000-memory.dmp
memory/788-82-0x0000000004F10000-0x0000000004F50000-memory.dmp
memory/2300-83-0x0000000000400000-0x000000000041B000-memory.dmp
memory/2300-85-0x0000000000400000-0x000000000041B000-memory.dmp
memory/788-86-0x0000000004F10000-0x0000000004F50000-memory.dmp
memory/2608-87-0x0000000000400000-0x0000000000458000-memory.dmp
memory/2608-89-0x0000000000400000-0x0000000000458000-memory.dmp
memory/2608-90-0x0000000000400000-0x0000000000458000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\holderwb.txt
| MD5 | f3b25701fe362ec84616a93a45ce9998 |
| SHA1 | d62636d8caec13f04e28442a0a6fa1afeb024bbb |
| SHA256 | b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209 |
| SHA512 | 98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84 |
memory/2608-97-0x0000000000400000-0x0000000000458000-memory.dmp