Analysis Overview
SHA256
dfd724316cb0edbf1212cbf5e71f007d22b7a38e7860d96d4d4bedf17eaa85ea
Threat Level: Known bad
The file INVOICE0987650009.cmd was found to be: Known bad.
Malicious Activity Summary
Remcos
NirSoft WebBrowserPassView
NirSoft MailPassView
Nirsoft
Drops startup file
Accesses Microsoft Outlook accounts
Suspicious use of SetThreadContext
Program crash
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-12-08 09:18
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-12-08 09:18
Reported
2023-12-08 09:21
Platform
win7-20231201-en
Max time kernel
149s
Max time network
142s
Command Line
Signatures
Remcos
NirSoft MailPassView
| Description | Indicator | Process | Target |
| 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 |
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 |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe | N/A |
Accesses Microsoft Outlook accounts
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-1514849007-2165033493-4114354048-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts | C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2700 set thread context of 2852 | N/A | C:\Users\Admin\AppData\Local\Temp\INVOICE0987650009.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe |
| PID 2852 set thread context of 1984 | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe |
| PID 2852 set thread context of 2452 | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe |
| PID 2852 set thread context of 2016 | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\INVOICE0987650009.exe
"C:\Users\Admin\AppData\Local\Temp\INVOICE0987650009.exe"
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
"Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\INVOICE0987650009.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe'
C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe /stext "C:\Users\Admin\AppData\Local\Temp\pkngzyxshnboqebhnrbynwrxpwmh"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe /stext "C:\Users\Admin\AppData\Local\Temp\zetzarimvvttalplxborqjlopkwqbky"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe /stext "C:\Users\Admin\AppData\Local\Temp\kgyj"
Network
| Country | Destination | Domain | Proto |
| US | 107.175.229.139:8087 | tcp | |
| US | 107.175.229.139:8087 | tcp | |
| US | 8.8.8.8:53 | geoplugin.net | udp |
| NL | 178.237.33.50:80 | geoplugin.net | tcp |
Files
memory/2700-0-0x0000000001300000-0x00000000013C4000-memory.dmp
memory/2700-1-0x0000000074E70000-0x000000007555E000-memory.dmp
memory/2700-2-0x0000000001250000-0x00000000012FE000-memory.dmp
memory/2700-3-0x0000000000630000-0x0000000000670000-memory.dmp
memory/1760-6-0x0000000070570000-0x0000000070B1B000-memory.dmp
memory/1760-7-0x0000000070570000-0x0000000070B1B000-memory.dmp
memory/1760-8-0x0000000002CE0000-0x0000000002D20000-memory.dmp
memory/1760-10-0x0000000070570000-0x0000000070B1B000-memory.dmp
memory/2700-11-0x00000000002A0000-0x00000000002A8000-memory.dmp
memory/2852-12-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2852-13-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2852-14-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2852-16-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2852-18-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2852-20-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2852-22-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2852-24-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2852-26-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp
memory/2852-27-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2700-29-0x0000000074E70000-0x000000007555E000-memory.dmp
memory/2852-30-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2852-31-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2852-33-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2852-34-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2852-35-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2852-36-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2852-37-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2852-38-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2852-39-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2852-41-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1984-44-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2452-48-0x0000000000400000-0x0000000000457000-memory.dmp
memory/1984-51-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2452-52-0x0000000000400000-0x0000000000457000-memory.dmp
memory/1984-54-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2452-56-0x0000000000400000-0x0000000000457000-memory.dmp
memory/1984-61-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2016-64-0x0000000000400000-0x0000000000424000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\pkngzyxshnboqebhnrbynwrxpwmh
| MD5 | f3b25701fe362ec84616a93a45ce9998 |
| SHA1 | d62636d8caec13f04e28442a0a6fa1afeb024bbb |
| SHA256 | b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209 |
| SHA512 | 98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84 |
memory/2016-67-0x0000000000400000-0x0000000000424000-memory.dmp
memory/2016-68-0x0000000000400000-0x0000000000424000-memory.dmp
memory/2016-69-0x0000000000400000-0x0000000000424000-memory.dmp
memory/2452-70-0x0000000000400000-0x0000000000457000-memory.dmp
memory/2852-71-0x0000000010000000-0x0000000010019000-memory.dmp
memory/2852-74-0x0000000010000000-0x0000000010019000-memory.dmp
memory/2852-75-0x0000000010000000-0x0000000010019000-memory.dmp
memory/2852-76-0x0000000010000000-0x0000000010019000-memory.dmp
memory/2852-78-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2852-77-0x0000000010000000-0x0000000010019000-memory.dmp
memory/2852-81-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2852-82-0x0000000000400000-0x0000000000482000-memory.dmp
C:\ProgramData\remcos\logs.dat
| MD5 | 2749ba00b283da282ed2b1b73d28d7ac |
| SHA1 | 751f5d26da560ab35a4c1e20c454d25e2351bfed |
| SHA256 | 9d4de74bc0e535dd4b4c84f7713691dd2fd01c94986d966dcb52d31c7fc2c4da |
| SHA512 | 965d8c7661586a4b467acac32e9f58bfeef40573cedf23704cc7c4eb9b249f0e52a92fd254373f4e22bc2513e1164227df1ea6dbca4325c251b8cd796b1c54e9 |
memory/2852-85-0x0000000010000000-0x0000000010019000-memory.dmp
memory/2852-90-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2852-91-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2852-99-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2852-100-0x0000000000400000-0x0000000000482000-memory.dmp
C:\ProgramData\remcos\logs.dat
| MD5 | 8a232fd211a2baeeefd783a660b22468 |
| SHA1 | fe172d2eae5ba605252e82ca5e263130bc861af7 |
| SHA256 | 3bfcfaadecb0b655a3eda7a516e5c89bca8b2575a39e7f5bd2dff018997bad67 |
| SHA512 | 6e15b13232b2d8df7c1660d906316dfa90406fe90593e31326f63087d265529ab3652721c5a76d4d4bf8b29ee4f927ebb2d88055650669f709a55c6366f5b0d3 |
memory/2852-107-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2852-115-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2852-116-0x0000000000400000-0x0000000000482000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-12-08 09:18
Reported
2023-12-08 09:21
Platform
win10v2004-20231130-en
Max time kernel
141s
Max time network
125s
Command Line
Signatures
Remcos
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4776 set thread context of 4432 | N/A | C:\Users\Admin\AppData\Local\Temp\INVOICE0987650009.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\INVOICE0987650009.exe
"C:\Users\Admin\AppData\Local\Temp\INVOICE0987650009.exe"
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
"Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\INVOICE0987650009.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe'
C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4432 -ip 4432
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4432 -s 532
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 6.181.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 208.194.73.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 173.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 158.240.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 175.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
Files
memory/4776-0-0x0000000000B70000-0x0000000000C34000-memory.dmp
memory/4776-1-0x0000000074740000-0x0000000074EF0000-memory.dmp
memory/4776-3-0x0000000005580000-0x000000000562E000-memory.dmp
memory/4776-2-0x0000000005570000-0x0000000005580000-memory.dmp
memory/4776-4-0x0000000005BE0000-0x0000000006184000-memory.dmp
memory/4776-5-0x0000000005710000-0x00000000057A2000-memory.dmp
memory/4776-6-0x0000000005850000-0x00000000058EC000-memory.dmp
memory/4344-8-0x0000000074740000-0x0000000074EF0000-memory.dmp
memory/4344-11-0x0000000002CF0000-0x0000000002D00000-memory.dmp
memory/4344-10-0x00000000056A0000-0x0000000005CC8000-memory.dmp
memory/4344-9-0x0000000002CF0000-0x0000000002D00000-memory.dmp
memory/4344-7-0x0000000002BE0000-0x0000000002C16000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mvhstncf.dof.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |
memory/4344-17-0x0000000005530000-0x0000000005552000-memory.dmp
memory/4344-18-0x0000000005E40000-0x0000000005EA6000-memory.dmp
memory/4344-19-0x0000000005F20000-0x0000000005F86000-memory.dmp
memory/4344-24-0x0000000006090000-0x00000000063E4000-memory.dmp
memory/4344-25-0x0000000006570000-0x000000000658E000-memory.dmp
memory/4344-26-0x00000000065C0000-0x000000000660C000-memory.dmp
memory/4776-27-0x00000000056D0000-0x00000000056D8000-memory.dmp
memory/4432-29-0x00000000002D0000-0x0000000000352000-memory.dmp
memory/4776-32-0x0000000074740000-0x0000000074EF0000-memory.dmp
memory/4432-36-0x00000000002D0000-0x0000000000352000-memory.dmp
memory/4432-41-0x00000000002D0000-0x0000000000352000-memory.dmp
memory/4344-42-0x0000000007530000-0x00000000075C6000-memory.dmp
memory/4344-43-0x0000000006A50000-0x0000000006A6A000-memory.dmp
memory/4344-44-0x0000000006AA0000-0x0000000006AC2000-memory.dmp
memory/4344-48-0x0000000074740000-0x0000000074EF0000-memory.dmp