Analysis Overview
SHA256
1f0a225b3b04a26d777a315cb1cacde6d5b0d7fc9e182a96ef035b41adada2de
Threat Level: Known bad
The file GH09876545600-87.bat was found to be: Known bad.
Malicious Activity Summary
Remcos
Drops startup file
Suspicious use of SetThreadContext
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2023-12-05 07:19
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-12-05 07:19
Reported
2023-12-05 07:22
Platform
win7-20231130-en
Max time kernel
149s
Max time network
143s
Command Line
Signatures
Remcos
Drops startup file
| Description | Indicator | Process | Target |
| 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 |
| File created | 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 2916 set thread context of 2036 | N/A | C:\Users\Admin\AppData\Local\Temp\GH09876545600-87.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe |
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 SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\GH09876545600-87.exe
"C:\Users\Admin\AppData\Local\Temp\GH09876545600-87.exe"
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
"Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\GH09876545600-87.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe'
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
Network
| Country | Destination | Domain | Proto |
| US | 107.175.229.139:8087 | tcp | |
| US | 107.175.229.139:8087 | tcp | |
| US | 107.175.229.139:8087 | tcp | |
| US | 107.175.229.139:8087 | tcp | |
| US | 107.175.229.139:8087 | tcp | |
| US | 107.175.229.139:8087 | tcp | |
| US | 107.175.229.139:8087 | tcp |
Files
memory/2916-1-0x00000000743E0000-0x0000000074ACE000-memory.dmp
memory/2916-0-0x0000000000040000-0x000000000018A000-memory.dmp
memory/2916-2-0x0000000001FB0000-0x000000000205E000-memory.dmp
memory/2916-3-0x0000000004540000-0x0000000004580000-memory.dmp
memory/2748-6-0x000000006FAE0000-0x000000007008B000-memory.dmp
memory/2748-7-0x000000006FAE0000-0x000000007008B000-memory.dmp
memory/2748-9-0x0000000002840000-0x0000000002880000-memory.dmp
memory/2748-8-0x0000000002840000-0x0000000002880000-memory.dmp
memory/2748-11-0x000000006FAE0000-0x000000007008B000-memory.dmp
memory/2916-12-0x0000000000570000-0x000000000057A000-memory.dmp
memory/2036-16-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2036-17-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2036-15-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2036-18-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2036-14-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2036-13-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2036-23-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2036-26-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2916-25-0x00000000743E0000-0x0000000074ACE000-memory.dmp
memory/2036-21-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2036-28-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2036-20-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2036-32-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2036-31-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2036-29-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2036-19-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2036-33-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2036-38-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2036-39-0x0000000000400000-0x0000000000482000-memory.dmp
C:\ProgramData\remcos\logs.dat
| MD5 | d897b203e55bf7879a7c8e45cd5bdcff |
| SHA1 | 343f9dc924a799fca45c87c73f27ba7db41cf227 |
| SHA256 | a79232f6e5f55954b5857673cd4ca6b72f7c11d82504c1847b570dd6e2507d8f |
| SHA512 | 4d011abb4768e9db218ac0a661802da3f4e872b9034281ecd9adad08d6117b489ed3ba6b4f4461591b8f5d877689b3d56ee1913375fbd1aea1f1eea8d0f7af18 |
memory/2036-44-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2036-45-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2036-51-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2036-52-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2036-57-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2036-58-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2036-63-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2036-65-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2036-70-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2036-71-0x0000000000400000-0x0000000000482000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-12-05 07:19
Reported
2023-12-05 07:22
Platform
win10v2004-20231130-en
Max time kernel
143s
Max time network
148s
Command Line
Signatures
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 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
| Description | Indicator | Process | Target |
| PID 392 wrote to memory of 4544 | N/A | C:\Users\Admin\AppData\Local\Temp\GH09876545600-87.exe | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe |
| PID 392 wrote to memory of 4544 | N/A | C:\Users\Admin\AppData\Local\Temp\GH09876545600-87.exe | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe |
| PID 392 wrote to memory of 4544 | N/A | C:\Users\Admin\AppData\Local\Temp\GH09876545600-87.exe | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe |
| PID 392 wrote to memory of 5040 | N/A | C:\Users\Admin\AppData\Local\Temp\GH09876545600-87.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe |
| PID 392 wrote to memory of 5040 | N/A | C:\Users\Admin\AppData\Local\Temp\GH09876545600-87.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe |
| PID 392 wrote to memory of 5040 | N/A | C:\Users\Admin\AppData\Local\Temp\GH09876545600-87.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\GH09876545600-87.exe
"C:\Users\Admin\AppData\Local\Temp\GH09876545600-87.exe"
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
"Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\GH09876545600-87.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe'
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
Files
memory/392-1-0x00000000747B0000-0x0000000074F60000-memory.dmp
memory/392-0-0x0000000000350000-0x000000000049A000-memory.dmp
memory/392-2-0x0000000002890000-0x00000000028A0000-memory.dmp
memory/392-3-0x0000000002910000-0x00000000029BE000-memory.dmp
memory/392-4-0x0000000005500000-0x0000000005AA4000-memory.dmp
memory/392-5-0x0000000004FF0000-0x0000000005082000-memory.dmp
memory/392-6-0x0000000005090000-0x000000000512C000-memory.dmp
memory/4544-8-0x00000000747B0000-0x0000000074F60000-memory.dmp
memory/4544-9-0x0000000002820000-0x0000000002830000-memory.dmp
memory/4544-7-0x00000000027C0000-0x00000000027F6000-memory.dmp
memory/4544-10-0x0000000002820000-0x0000000002830000-memory.dmp
memory/4544-11-0x00000000051C0000-0x00000000057E8000-memory.dmp
memory/4544-12-0x0000000005110000-0x0000000005132000-memory.dmp
memory/4544-13-0x00000000057F0000-0x0000000005856000-memory.dmp
memory/4544-19-0x0000000005A50000-0x0000000005AB6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ugw3rj3e.t21.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |
memory/4544-24-0x0000000005D20000-0x0000000006074000-memory.dmp
memory/4544-25-0x00000000060D0000-0x00000000060EE000-memory.dmp
memory/4544-26-0x0000000006110000-0x000000000615C000-memory.dmp
memory/392-27-0x00000000029E0000-0x00000000029EA000-memory.dmp
memory/392-29-0x00000000747B0000-0x0000000074F60000-memory.dmp
memory/4544-32-0x0000000006610000-0x0000000006632000-memory.dmp
memory/4544-31-0x00000000065B0000-0x00000000065CA000-memory.dmp
memory/4544-30-0x00000000072E0000-0x0000000007376000-memory.dmp
memory/4544-36-0x00000000747B0000-0x0000000074F60000-memory.dmp