Analysis Overview
SHA256
581fdf9e0a55e6121dfa4b0f662af19fe323492170a19b4181fc4bc941424b1a
Threat Level: Known bad
The file 581fdf9e0a55e6121dfa4b0f662af19fe323492170a19b4181fc4bc941424b1aexe.exe was found to be: Known bad.
Malicious Activity Summary
Remcos
Loads dropped DLL
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Suspicious use of NtCreateThreadExHideFromDebugger
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious use of SendNotifyMessage
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-12-07 19:22
Signatures
Analysis: behavioral2
Detonation Overview
Submitted
2023-12-07 19:22
Reported
2023-12-07 19:25
Platform
win10v2004-20231127-en
Max time kernel
150s
Max time network
155s
Command Line
Signatures
Remcos
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\581fdf9e0a55e6121dfa4b0f662af19fe323492170a19b4181fc4bc941424b1aexe.exe | N/A |
Suspicious use of NtCreateThreadExHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\windows mail\wab.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\windows mail\wab.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2224 set thread context of 3172 | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | C:\Program Files (x86)\windows mail\wab.exe |
Enumerates physical storage devices
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 |
| 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 |
| 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 |
| 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 behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| 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 FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\windows mail\wab.exe | N/A |
Suspicious use of SendNotifyMessage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\windows mail\wab.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\windows mail\wab.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\581fdf9e0a55e6121dfa4b0f662af19fe323492170a19b4181fc4bc941424b1aexe.exe
"C:\Users\Admin\AppData\Local\Temp\581fdf9e0a55e6121dfa4b0f662af19fe323492170a19b4181fc4bc941424b1aexe.exe"
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"powershell.exe" -windowstyle hidden "$genom=Get-Content 'C:\Users\Admin\AppData\Local\Temp\Semplices\Amortisabel\sphygmomanometric.Mat';$Tintometric14=$genom.SubString(70960,3);.$Tintometric14($genom)"
C:\Program Files (x86)\windows mail\wab.exe
"C:\Program Files (x86)\windows mail\wab.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.200:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 2.136.104.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 226.173.246.72.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 100.117.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 158.240.127.40.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 | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 69.12.64.151:80 | 69.12.64.151 | tcp |
| US | 8.8.8.8:53 | 151.64.12.69.in-addr.arpa | udp |
| US | 172.93.187.227:2404 | tcp | |
| US | 8.8.8.8:53 | 14.173.189.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | geoplugin.net | udp |
| NL | 178.237.33.50:80 | geoplugin.net | tcp |
| US | 8.8.8.8:53 | 227.187.93.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.33.237.178.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\nsw2E40.tmp\nsExec.dll
| MD5 | 3d366250fcf8b755fce575c75f8c79e4 |
| SHA1 | 2ebac7df78154738d41aac8e27d7a0e482845c57 |
| SHA256 | 8bdd996ae4778c6f829e2bcb651c55efc9ec37eeea17d259e013b39528dddbb6 |
| SHA512 | 67d2d88de625227ccd2cb406b4ac3a215d1770d385c985a44e2285490f49b45f23ce64745b24444e2a0f581335fda02e913b92781043e8dfd287844435ba9094 |
memory/2224-13-0x00000000732A0000-0x0000000073A50000-memory.dmp
memory/2224-14-0x0000000002910000-0x0000000002920000-memory.dmp
memory/2224-15-0x0000000002920000-0x0000000002956000-memory.dmp
memory/2224-16-0x0000000002910000-0x0000000002920000-memory.dmp
memory/2224-17-0x00000000050A0000-0x00000000056C8000-memory.dmp
memory/2224-18-0x0000000004F20000-0x0000000004F42000-memory.dmp
memory/2224-19-0x0000000005880000-0x00000000058E6000-memory.dmp
memory/2224-20-0x00000000058F0000-0x0000000005956000-memory.dmp
memory/2224-21-0x00000000732A0000-0x0000000073A50000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mrqqp1lc.0ag.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |
memory/2224-27-0x0000000005960000-0x0000000005CB4000-memory.dmp
memory/2224-32-0x0000000002910000-0x0000000002920000-memory.dmp
memory/2224-33-0x0000000005EE0000-0x0000000005EFE000-memory.dmp
memory/2224-34-0x0000000005FB0000-0x0000000005FFC000-memory.dmp
memory/2224-35-0x0000000002910000-0x0000000002920000-memory.dmp
memory/2224-36-0x0000000006440000-0x00000000064D6000-memory.dmp
memory/2224-37-0x00000000063F0000-0x000000000640A000-memory.dmp
memory/2224-38-0x00000000064E0000-0x0000000006502000-memory.dmp
memory/2224-39-0x0000000007520000-0x0000000007AC4000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\Semplices\Amortisabel\sphygmomanometric.Mat
| MD5 | cc7c8241497f9e2254f2d8335aa9ed87 |
| SHA1 | 23d060ec347d5b2f12eaa0484cdf7935a4ede9b7 |
| SHA256 | 57cfa5abddfc948957c662c21284b8ca9c8c9d75231c31e5a8f87b3453867ffd |
| SHA512 | 534da226f2a6c8ea4b485c8517a4f4aca1ba62412f9e4e9a617b43630bb4c620058bad455c67a0a792476dc79ff4fa054fa779d2db90f3fde6dd935effa2ba73 |
memory/2224-41-0x0000000008150000-0x00000000087CA000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\Semplices\Slagt106.Dis
| MD5 | 361a240997550ebd0b443d63119f5963 |
| SHA1 | abed050265e7b774dd1c23f750b8b865084ed0f7 |
| SHA256 | 5c4b3f294087e7ffeb6632054d939cbf0d3f304450651555c969c66c7999d46a |
| SHA512 | ad3a6d577a954a158a4181cd0f20ddc5fefece729bbc39233a02fa5539064beacfc5dd7aae47e411f457c2fbf6ec29db8c2eae3fb1a8e5dd93ec645f1f4076fc |
memory/2224-44-0x00000000074C0000-0x00000000074C4000-memory.dmp
memory/2224-46-0x0000000002910000-0x0000000002920000-memory.dmp
memory/2224-48-0x00000000087D0000-0x000000000C623000-memory.dmp
memory/2224-49-0x0000000076F11000-0x0000000077031000-memory.dmp
memory/3172-50-0x0000000076F98000-0x0000000076F99000-memory.dmp
memory/3172-51-0x0000000076F11000-0x0000000077031000-memory.dmp
memory/3172-52-0x000000006E0A0000-0x000000006F2F4000-memory.dmp
memory/3172-56-0x0000000000800000-0x0000000004653000-memory.dmp
memory/2224-57-0x00000000732A0000-0x0000000073A50000-memory.dmp
memory/3172-58-0x000000006E0A0000-0x000000006F2F4000-memory.dmp
memory/3172-61-0x000000006E0A0000-0x000000006F2F4000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2023-12-07 19:22
Reported
2023-12-07 19:25
Platform
win7-20231201-en
Max time kernel
120s
Max time network
121s
Command Line
Signatures
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\581fdf9e0a55e6121dfa4b0f662af19fe323492170a19b4181fc4bc941424b1aexe.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| 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
| Description | Indicator | Process | Target |
| PID 2332 wrote to memory of 2820 | N/A | C:\Users\Admin\AppData\Local\Temp\581fdf9e0a55e6121dfa4b0f662af19fe323492170a19b4181fc4bc941424b1aexe.exe | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe |
| PID 2332 wrote to memory of 2820 | N/A | C:\Users\Admin\AppData\Local\Temp\581fdf9e0a55e6121dfa4b0f662af19fe323492170a19b4181fc4bc941424b1aexe.exe | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe |
| PID 2332 wrote to memory of 2820 | N/A | C:\Users\Admin\AppData\Local\Temp\581fdf9e0a55e6121dfa4b0f662af19fe323492170a19b4181fc4bc941424b1aexe.exe | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe |
| PID 2332 wrote to memory of 2820 | N/A | C:\Users\Admin\AppData\Local\Temp\581fdf9e0a55e6121dfa4b0f662af19fe323492170a19b4181fc4bc941424b1aexe.exe | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\581fdf9e0a55e6121dfa4b0f662af19fe323492170a19b4181fc4bc941424b1aexe.exe
"C:\Users\Admin\AppData\Local\Temp\581fdf9e0a55e6121dfa4b0f662af19fe323492170a19b4181fc4bc941424b1aexe.exe"
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"powershell.exe" -windowstyle hidden "$genom=Get-Content 'C:\Users\Admin\AppData\Local\Temp\Semplices\Amortisabel\sphygmomanometric.Mat';$Tintometric14=$genom.SubString(70960,3);.$Tintometric14($genom)"
Network
Files
\Users\Admin\AppData\Local\Temp\nst6B6.tmp\nsExec.dll
| MD5 | 3d366250fcf8b755fce575c75f8c79e4 |
| SHA1 | 2ebac7df78154738d41aac8e27d7a0e482845c57 |
| SHA256 | 8bdd996ae4778c6f829e2bcb651c55efc9ec37eeea17d259e013b39528dddbb6 |
| SHA512 | 67d2d88de625227ccd2cb406b4ac3a215d1770d385c985a44e2285490f49b45f23ce64745b24444e2a0f581335fda02e913b92781043e8dfd287844435ba9094 |
memory/2820-16-0x0000000073850000-0x0000000073DFB000-memory.dmp
memory/2820-17-0x0000000073850000-0x0000000073DFB000-memory.dmp
memory/2820-18-0x00000000028E0000-0x0000000002920000-memory.dmp
memory/2820-19-0x00000000028E0000-0x0000000002920000-memory.dmp
memory/2820-20-0x00000000028E0000-0x0000000002920000-memory.dmp
memory/2820-21-0x0000000073850000-0x0000000073DFB000-memory.dmp