Analysis Overview
SHA256
6c870d3a5abad32d70b0599de0715e146228141243ac81066b99d77a9d315ce1
Threat Level: Known bad
The file DocumentPreview.bin.zip was found to be: Known bad.
Malicious Activity Summary
Buer
Modifies WinLogon for persistence
Buer Loader
Executes dropped EXE
Loads dropped DLL
Deletes itself
Enumerates connected drives
Enumerates physical storage devices
Program crash
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2020-07-08 16:18
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2020-07-08 16:18
Reported
2020-07-08 16:21
Platform
win7v200430
Max time kernel
147s
Max time network
103s
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\\e2d014a3bdf03cc0a830\\gennt.exe\"" | C:\ProgramData\e2d014a3bdf03cc0a830\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\e2d014a3bdf03cc0a830\gennt.exe | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\e2d014a3bdf03cc0a830\gennt.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1.exe | N/A |
Enumerates connected drives
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\secinit.exe |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\ProgramData\e2d014a3bdf03cc0a830\gennt.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1.exe
"C:\Users\Admin\AppData\Local\Temp\e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1.exe"
C:\ProgramData\e2d014a3bdf03cc0a830\gennt.exe
C:\ProgramData\e2d014a3bdf03cc0a830\gennt.exe "C:\Users\Admin\AppData\Local\Temp\e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1.exe" ensgJJ
C:\Windows\SysWOW64\secinit.exe
C:\ProgramData\e2d014a3bdf03cc0a830\gennt.exe
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1800 -s 160
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" powershell.exe -Command "& {Add-MpPreference -ExclusionPath C:\ProgramData\e2d014a3bdf03cc0a830}"
Network
| Country | Destination | Domain | Proto |
| N/A | 162.244.81.87:443 | tcp | |
| N/A | 162.244.81.87:443 | tcp | |
| N/A | 162.244.81.87:443 | tcp |
Files
memory/1292-0-0x0000000000030000-0x000000000003C000-memory.dmp
\ProgramData\e2d014a3bdf03cc0a830\gennt.exe
| MD5 | db3c2530d727bac602e6c41cb3e60562 |
| SHA1 | 0d62d5a5fba84c1e826591f27892466a1cd59257 |
| SHA256 | e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1 |
| SHA512 | 03e25d32a262c88ec2cf9303b7835da93b321a1d2a092531c96df8d95065944250f63c075792ca72b6d2a12d60c492782ba516712fbca0bf3b0239477b6b06e8 |
memory/1692-2-0x0000000000000000-mapping.dmp
C:\ProgramData\e2d014a3bdf03cc0a830\gennt.exe
| MD5 | db3c2530d727bac602e6c41cb3e60562 |
| SHA1 | 0d62d5a5fba84c1e826591f27892466a1cd59257 |
| SHA256 | e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1 |
| SHA512 | 03e25d32a262c88ec2cf9303b7835da93b321a1d2a092531c96df8d95065944250f63c075792ca72b6d2a12d60c492782ba516712fbca0bf3b0239477b6b06e8 |
memory/1692-4-0x0000000000230000-0x000000000023C000-memory.dmp
C:\ProgramData\e2d014a3bdf03cc0a830\gennt.exe
| MD5 | db3c2530d727bac602e6c41cb3e60562 |
| SHA1 | 0d62d5a5fba84c1e826591f27892466a1cd59257 |
| SHA256 | e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1 |
| SHA512 | 03e25d32a262c88ec2cf9303b7835da93b321a1d2a092531c96df8d95065944250f63c075792ca72b6d2a12d60c492782ba516712fbca0bf3b0239477b6b06e8 |
memory/1800-6-0x0000000000000000-mapping.dmp
memory/1820-7-0x0000000000000000-mapping.dmp
memory/1820-8-0x0000000002050000-0x0000000002061000-memory.dmp
memory/1800-9-0x0000000000000000-mapping.dmp
memory/1800-10-0x0000000000000000-mapping.dmp
memory/1820-11-0x00000000025A0000-0x00000000025B1000-memory.dmp
memory/860-12-0x0000000000000000-mapping.dmp
memory/1800-13-0x0000000000000000-mapping.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2020-07-08 16:18
Reported
2020-07-08 16:21
Platform
win10
Max time kernel
86s
Max time network
142s
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\\19aedf2a284d49ff442c\\gennt.exe\"" | C:\ProgramData\19aedf2a284d49ff442c\gennt.exe | N/A |
Buer Loader
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\19aedf2a284d49ff442c\gennt.exe | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\19aedf2a284d49ff442c\gennt.exe | N/A |
Enumerates connected drives
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\secinit.exe |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\ProgramData\19aedf2a284d49ff442c\gennt.exe | N/A |
| N/A | N/A | C:\ProgramData\19aedf2a284d49ff442c\gennt.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeRestorePrivilege | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| Token: SeBackupPrivilege | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1.exe
"C:\Users\Admin\AppData\Local\Temp\e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1.exe"
C:\ProgramData\19aedf2a284d49ff442c\gennt.exe
C:\ProgramData\19aedf2a284d49ff442c\gennt.exe "C:\Users\Admin\AppData\Local\Temp\e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1.exe" ensgJJ
C:\Windows\SysWOW64\secinit.exe
C:\ProgramData\19aedf2a284d49ff442c\gennt.exe
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3768 -s 360
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" powershell.exe -Command "& {Add-MpPreference -ExclusionPath C:\ProgramData\19aedf2a284d49ff442c}"
Network
| Country | Destination | Domain | Proto |
| N/A | 13.107.4.52:80 | www.msftconnecttest.com | tcp |
| N/A | 162.244.81.87:443 | tcp | |
| N/A | 162.244.81.87:443 | tcp | |
| N/A | 162.244.81.87:443 | tcp |
Files
memory/2460-0-0x00000000001D0000-0x00000000001DC000-memory.dmp
memory/3820-1-0x0000000000000000-mapping.dmp
C:\ProgramData\19aedf2a284d49ff442c\gennt.exe
| MD5 | db3c2530d727bac602e6c41cb3e60562 |
| SHA1 | 0d62d5a5fba84c1e826591f27892466a1cd59257 |
| SHA256 | e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1 |
| SHA512 | 03e25d32a262c88ec2cf9303b7835da93b321a1d2a092531c96df8d95065944250f63c075792ca72b6d2a12d60c492782ba516712fbca0bf3b0239477b6b06e8 |
C:\ProgramData\19aedf2a284d49ff442c\gennt.exe
| MD5 | db3c2530d727bac602e6c41cb3e60562 |
| SHA1 | 0d62d5a5fba84c1e826591f27892466a1cd59257 |
| SHA256 | e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1 |
| SHA512 | 03e25d32a262c88ec2cf9303b7835da93b321a1d2a092531c96df8d95065944250f63c075792ca72b6d2a12d60c492782ba516712fbca0bf3b0239477b6b06e8 |
memory/3768-5-0x0000000000000000-mapping.dmp
memory/804-6-0x0000000004F20000-0x0000000004F21000-memory.dmp
memory/3768-7-0x0000000000000000-mapping.dmp
memory/3768-8-0x0000000000000000-mapping.dmp
memory/3768-9-0x0000000000000000-mapping.dmp
memory/3768-10-0x0000000000000000-mapping.dmp
memory/3768-11-0x0000000000000000-mapping.dmp
memory/804-12-0x0000000005780000-0x0000000005781000-memory.dmp
memory/1188-13-0x0000000000000000-mapping.dmp