Analysis Overview
SHA256
94ba896b284005a58298806bba47f725cdcaa1816b3c79226639cb145bf16886
Threat Level: Known bad
The file Docum_nt_Pr_view.exe was found to be: Known bad.
Malicious Activity Summary
Buer
Modifies WinLogon for persistence
Buer Loader
Executes dropped EXE
Deletes itself
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2020-09-18 13:41
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2020-09-18 13:41
Reported
2020-09-18 13:43
Platform
win7
Max time kernel
31s
Max time network
14s
Command Line
Signatures
Buer
Buer Loader
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\Docum_nt_Pr_view.exe
"C:\Users\Admin\AppData\Local\Temp\Docum_nt_Pr_view.exe"
Network
Files
memory/1104-0-0x0000000000340000-0x000000000034F000-memory.dmp
memory/1104-1-0x0000000040000000-0x000000004000C000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2020-09-18 13:41
Reported
2020-09-18 13:43
Platform
win10v200722
Max time kernel
118s
Max time network
113s
Command Line
Signatures
Buer
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\ProgramData\\7e1bd100aba6f2ec5a2b\\gennt.exe\"" | C:\ProgramData\7e1bd100aba6f2ec5a2b\gennt.exe | N/A |
Buer Loader
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\7e1bd100aba6f2ec5a2b\gennt.exe | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\7e1bd100aba6f2ec5a2b\gennt.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 |
| 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 3608 wrote to memory of 752 | N/A | C:\Users\Admin\AppData\Local\Temp\Docum_nt_Pr_view.exe | C:\ProgramData\7e1bd100aba6f2ec5a2b\gennt.exe |
| PID 3608 wrote to memory of 752 | N/A | C:\Users\Admin\AppData\Local\Temp\Docum_nt_Pr_view.exe | C:\ProgramData\7e1bd100aba6f2ec5a2b\gennt.exe |
| PID 3608 wrote to memory of 752 | N/A | C:\Users\Admin\AppData\Local\Temp\Docum_nt_Pr_view.exe | C:\ProgramData\7e1bd100aba6f2ec5a2b\gennt.exe |
| PID 752 wrote to memory of 3088 | N/A | C:\ProgramData\7e1bd100aba6f2ec5a2b\gennt.exe | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe |
| PID 752 wrote to memory of 3088 | N/A | C:\ProgramData\7e1bd100aba6f2ec5a2b\gennt.exe | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe |
| PID 752 wrote to memory of 3088 | N/A | C:\ProgramData\7e1bd100aba6f2ec5a2b\gennt.exe | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\Docum_nt_Pr_view.exe
"C:\Users\Admin\AppData\Local\Temp\Docum_nt_Pr_view.exe"
C:\ProgramData\7e1bd100aba6f2ec5a2b\gennt.exe
C:\ProgramData\7e1bd100aba6f2ec5a2b\gennt.exe "C:\Users\Admin\AppData\Local\Temp\Docum_nt_Pr_view.exe" ensgJJ
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -Command "& {Add-MpPreference -ExclusionPath C:\ProgramData\7e1bd100aba6f2ec5a2b}"
Network
Files
memory/3608-0-0x0000000000710000-0x000000000071F000-memory.dmp
memory/3608-1-0x0000000040000000-0x000000004000C000-memory.dmp
memory/752-2-0x0000000000000000-mapping.dmp
C:\ProgramData\7e1bd100aba6f2ec5a2b\gennt.exe
| MD5 | 96878fda61a76395aafa16a6150b0fe1 |
| SHA1 | 3509a916a873351ab23bc671cce5ca9aa3299e62 |
| SHA256 | 94ba896b284005a58298806bba47f725cdcaa1816b3c79226639cb145bf16886 |
| SHA512 | 4e98e7b32441d270496b35c13e16ca0fedfca10e8baf8cb92a0a54fc803fb2bbfbc3417fe22467c195655821167d068a0ccde3310b45c75cada677ccea638234 |
C:\ProgramData\7e1bd100aba6f2ec5a2b\gennt.exe
| MD5 | 96878fda61a76395aafa16a6150b0fe1 |
| SHA1 | 3509a916a873351ab23bc671cce5ca9aa3299e62 |
| SHA256 | 94ba896b284005a58298806bba47f725cdcaa1816b3c79226639cb145bf16886 |
| SHA512 | 4e98e7b32441d270496b35c13e16ca0fedfca10e8baf8cb92a0a54fc803fb2bbfbc3417fe22467c195655821167d068a0ccde3310b45c75cada677ccea638234 |
memory/3088-7-0x0000000000000000-mapping.dmp
memory/3088-8-0x0000000073E00000-0x00000000744EE000-memory.dmp
memory/3088-9-0x0000000001240000-0x0000000001241000-memory.dmp
memory/3088-10-0x0000000006F60000-0x0000000006F61000-memory.dmp
memory/3088-11-0x0000000006CB0000-0x0000000006CB1000-memory.dmp
memory/3088-12-0x0000000006E50000-0x0000000006E51000-memory.dmp
memory/3088-13-0x0000000006EC0000-0x0000000006EC1000-memory.dmp
memory/3088-14-0x0000000007860000-0x0000000007861000-memory.dmp
memory/3088-15-0x00000000075E0000-0x00000000075E1000-memory.dmp
memory/3088-16-0x0000000008060000-0x0000000008061000-memory.dmp
memory/3088-17-0x0000000007E60000-0x0000000007E61000-memory.dmp
memory/3088-19-0x0000000008C00000-0x0000000008C33000-memory.dmp
memory/3088-26-0x0000000008BE0000-0x0000000008BE1000-memory.dmp
memory/3088-27-0x0000000008FA0000-0x0000000008FA1000-memory.dmp
memory/3088-28-0x0000000009130000-0x0000000009131000-memory.dmp
memory/3088-29-0x00000000069F0000-0x00000000069F1000-memory.dmp
memory/3088-31-0x00000000069E0000-0x00000000069E1000-memory.dmp