Analysis Overview
SHA256
58feb0e5a795cf5f8ab9f7478b4f26ce936be728e4fa89fa3408f05049d90f2a
Threat Level: Known bad
The file frraw7.dll was found to be: Known bad.
Malicious Activity Summary
Valak
Valak JavaScript Loader
JavaScript code in executable
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2020-11-09 20:04
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2020-11-09 20:04
Reported
2020-11-10 05:29
Platform
win7v20201028
Max time kernel
144s
Max time network
45s
Command Line
Signatures
Valak
Valak JavaScript Loader
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
JavaScript code in executable
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\frraw7.dll
C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\frraw7.dll
C:\Windows\SysWOW64\wscript.exe
wscript.exe //E:jscript "C:\Users\Public\JjeEWeKob.Ut_Aw
C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
Network
Files
memory/1136-0-0x0000000000000000-mapping.dmp
memory/624-1-0x0000000000000000-mapping.dmp
C:\Users\Public\JjeEWeKob.Ut_Aw
| MD5 | ba0750efd6315a327e9a5ef8d7cab931 |
| SHA1 | 4f25989d89fc7bf80f6188c3d87dd7ff37783832 |
| SHA256 | af627a0c52df523397dac39897b03a413bad485cb9e7ed4ad94f4d75a3b018a7 |
| SHA512 | cf44e1a2a8a5e914745d3b08d4a4820bbce12e2ad19775d67cd86271a768c04f5e8dfee5a674c4eaf3ae35c6c2ea95d04af2b27723c2e115bdf320e50acfd94e |
memory/624-3-0x00000000025A0000-0x00000000025A4000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2020-11-09 20:04
Reported
2020-11-10 05:30
Platform
win10v20201028
Max time kernel
1s
Max time network
127s
Command Line
Signatures
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3408 wrote to memory of 856 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 3408 wrote to memory of 856 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 3408 wrote to memory of 856 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
Processes
C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\frraw7.dll
C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\frraw7.dll
Network
| Country | Destination | Domain | Proto |
| N/A | 52.109.12.18:443 | tcp |
Files
memory/856-0-0x0000000000000000-mapping.dmp