Analysis Overview
SHA256
bec10e0f1fa3d6a1485f8590c5d11f082a2c3a57eac821332eca390b18d4c036
Threat Level: Known bad
The file PO#894.rar was found to be: Known bad.
Malicious Activity Summary
HawkEye
Looks for VirtualBox Guest Additions in registry
NirSoft WebBrowserPassView
NirSoft MailPassView
Nirsoft
Looks for VMWare Tools registry key
Checks BIOS information in registry
Uses the VBS compiler for execution
Checks computer location settings
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 WriteProcessMemory
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK Matrix V6
Analysis: static1
Detonation Overview
Reported
2023-07-07 17:38
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-07-07 17:38
Reported
2023-07-07 17:40
Platform
win7-20230703-en
Max time kernel
110s
Max time network
112s
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 |
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| 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 |
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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 |
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| 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-1-5-21-264077997-199365141-898621884-1000\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-1-5-21-264077997-199365141-898621884-1000\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 2256 set thread context of 756 | N/A | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | C:\Users\Admin\AppData\Local\Temp\PO#894.exe |
| PID 756 set thread context of 2576 | N/A | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe |
| PID 756 set thread context of 2596 | 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\tmp3D30.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 | 91.235.116.232:59975 | ftp.lucd.ru | tcp |
Files
memory/2256-54-0x0000000000810000-0x0000000000990000-memory.dmp
memory/2256-55-0x0000000005120000-0x0000000005160000-memory.dmp
memory/2256-56-0x0000000005120000-0x0000000005160000-memory.dmp
memory/2256-57-0x00000000003B0000-0x00000000003C4000-memory.dmp
memory/2256-58-0x0000000005680000-0x0000000005764000-memory.dmp
memory/2256-59-0x0000000005260000-0x0000000005304000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp3D30.tmp
| MD5 | 3c7d5f212a907a408f22e066c017aee3 |
| SHA1 | d14495216ad394f443eccba520ab75483552dfca |
| SHA256 | cd0b552e6971dbd585f539654a95eb2c2e645d78691a240e8ae5f9559c8d2d3c |
| SHA512 | 7cf656eeeb26e04a3d9ff920cd82aae872e3dcb2279fbb85e5390f2efcd6f21158a19525568f09e0e1a834704596b003a55ddd0fc032548b7c36777d48f63a5b |
memory/756-63-0x0000000000400000-0x0000000000488000-memory.dmp
memory/756-64-0x0000000000400000-0x0000000000488000-memory.dmp
memory/756-66-0x0000000000400000-0x0000000000488000-memory.dmp
memory/756-65-0x0000000000400000-0x0000000000488000-memory.dmp
memory/756-67-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/756-68-0x0000000000400000-0x0000000000488000-memory.dmp
memory/756-70-0x0000000000400000-0x0000000000488000-memory.dmp
memory/756-72-0x0000000000400000-0x0000000000488000-memory.dmp
memory/756-75-0x0000000004EB0000-0x0000000004EF0000-memory.dmp
memory/756-78-0x00000000007A0000-0x00000000007A8000-memory.dmp
memory/2576-79-0x0000000000400000-0x000000000041B000-memory.dmp
memory/2576-81-0x0000000000400000-0x000000000041B000-memory.dmp
memory/756-82-0x0000000004EB0000-0x0000000004EF0000-memory.dmp
memory/2576-83-0x0000000000400000-0x000000000041B000-memory.dmp
memory/756-84-0x0000000004EB0000-0x0000000004EF0000-memory.dmp
memory/2576-86-0x0000000000400000-0x000000000041B000-memory.dmp
memory/2596-87-0x0000000000400000-0x0000000000458000-memory.dmp
memory/2596-89-0x0000000000400000-0x0000000000458000-memory.dmp
memory/2596-93-0x0000000000400000-0x0000000000458000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\holderwb.txt
| MD5 | f3b25701fe362ec84616a93a45ce9998 |
| SHA1 | d62636d8caec13f04e28442a0a6fa1afeb024bbb |
| SHA256 | b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209 |
| SHA512 | 98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84 |
memory/2596-97-0x0000000000400000-0x0000000000458000-memory.dmp
memory/756-98-0x0000000004EB0000-0x0000000004EF0000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-07-07 17:38
Reported
2023-07-07 17:40
Platform
win10v2004-20230703-en
Max time kernel
118s
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 |
| 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 |
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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 |
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\VideoBiosVersion | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion | 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-1-5-21-3195054982-4292022746-1467505928-1000\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-1-5-21-3195054982-4292022746-1467505928-1000\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-1-5-21-3195054982-4292022746-1467505928-1000\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 580 set thread context of 3808 | N/A | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | C:\Users\Admin\AppData\Local\Temp\PO#894.exe |
| PID 3808 set thread context of 4436 | N/A | C:\Users\Admin\AppData\Local\Temp\PO#894.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe |
| PID 3808 set thread context of 2428 | 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:\Users\Admin\AppData\Local\Temp\PO#894.exe | N/A |
| 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\tmp72D9.tmp"
C:\Users\Admin\AppData\Local\Temp\PO#894.exe
"{path}"
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 | 68.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.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 | 36.155.16.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 126.50.247.8.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 | 91.235.116.232:55649 | ftp.lucd.ru | tcp |
| US | 8.8.8.8:53 | 232.116.235.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 84.65.42.20.in-addr.arpa | udp |
Files
memory/580-133-0x0000000000F70000-0x00000000010F0000-memory.dmp
memory/580-134-0x0000000005A60000-0x0000000005AFC000-memory.dmp
memory/580-135-0x00000000060B0000-0x0000000006654000-memory.dmp
memory/580-136-0x0000000005BA0000-0x0000000005C32000-memory.dmp
memory/580-137-0x0000000005B40000-0x0000000005B4A000-memory.dmp
memory/580-138-0x0000000005D90000-0x0000000005DE6000-memory.dmp
memory/580-139-0x0000000005DF0000-0x0000000005E00000-memory.dmp
memory/580-140-0x0000000005DF0000-0x0000000005E00000-memory.dmp
memory/580-141-0x0000000007F90000-0x0000000007FF6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp72D9.tmp
| MD5 | b79dfd525530fb425e547e75562965da |
| SHA1 | 059fe793bd7c6cecc5d61ef8d195f1e0d9535f9e |
| SHA256 | 71e6562a9ba476b7b3b6e4474ea423263e4417faaa4235ef3d717e7979f87da0 |
| SHA512 | e7358edca8b2c53dad1204c9049fe5b71638da3b761af87165ccd2b9beaa20e3f648f2c8dafb539cef7c76ae489f568ae3bcb3b51e8f5e18cb145a795ab1cb3b |
memory/3808-145-0x0000000000400000-0x0000000000488000-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/3808-148-0x0000000005C60000-0x0000000005C70000-memory.dmp
memory/4436-153-0x0000000000400000-0x000000000041B000-memory.dmp
memory/4436-155-0x0000000000400000-0x000000000041B000-memory.dmp
memory/4436-157-0x0000000000400000-0x000000000041B000-memory.dmp
memory/3808-158-0x0000000005C60000-0x0000000005C70000-memory.dmp
memory/3808-159-0x0000000005C60000-0x0000000005C70000-memory.dmp
memory/2428-160-0x0000000000400000-0x0000000000458000-memory.dmp
memory/2428-162-0x0000000000400000-0x0000000000458000-memory.dmp
memory/3808-166-0x0000000005C60000-0x0000000005C70000-memory.dmp
memory/2428-167-0x0000000000400000-0x0000000000458000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\holderwb.txt
| MD5 | f94dc819ca773f1e3cb27abbc9e7fa27 |
| SHA1 | 9a7700efadc5ea09ab288544ef1e3cd876255086 |
| SHA256 | a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92 |
| SHA512 | 72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196 |
memory/2428-170-0x0000000000400000-0x0000000000458000-memory.dmp