Analysis Overview
SHA256
b9bea7b9328edd5b391c66e634ab42bb5d9a05c76d76fbebac8e81f36c3b333b
Threat Level: Known bad
The file file.exe was found to be: Known bad.
Malicious Activity Summary
Valak JavaScript Loader
Valak
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2020-06-09 22:53
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2020-06-09 22:53
Reported
2020-06-09 22:55
Platform
win7v200430
Max time kernel
150s
Max time network
31s
Command Line
Signatures
Suspicious use of WriteProcessMemory
Valak JavaScript Loader
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Valak
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\file.exe.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\file.exe.dll,#1
C:\Windows\SysWOW64\wscript.exe
wscript.exe //E:jscript "C:\Users\Public\CCGYPWTwr.iySAE
C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
Network
| Country | Destination | Domain | Proto |
| N/A | 239.255.255.250:1900 | udp | |
| N/A | 239.255.255.250:1900 | udp |
Files
C:\Users\Public\CCGYPWTwr.iySAE
memory/1512-1-0x00000000027C0000-0x00000000027C4000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2020-06-09 22:53
Reported
2020-06-09 22:55
Platform
win10v200430
Max time kernel
66s
Max time network
68s
Command Line
Signatures
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3692 wrote to memory of 3128 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3692 wrote to memory of 3128 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3692 wrote to memory of 3128 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3128 wrote to memory of 2388 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\wscript.exe |
| PID 3128 wrote to memory of 2388 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\wscript.exe |
| PID 3128 wrote to memory of 2388 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\wscript.exe |
Valak JavaScript Loader
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Valak
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\file.exe.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\file.exe.dll,#1
C:\Windows\SysWOW64\wscript.exe
wscript.exe //E:jscript "C:\Users\Public\CCGYPWTwr.iySAE
C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
Network
| Country | Destination | Domain | Proto |
| N/A | 239.255.255.250:1900 | udp | |
| N/A | 239.255.255.250:1900 | udp | |
| N/A | 127.0.0.1:47001 | tcp | |
| N/A | 10.10.0.255:137 | udp |
Files
C:\Users\Public\CCGYPWTwr.iySAE