Analysis Overview
SHA256
a6c6ab892399b0496ffcd15d3af8dc8840818439367b990f60f51c95c8e56305
Threat Level: Known bad
The file haao1.cab.exe_ 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 20:14
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2020-11-09 20:14
Reported
2020-11-10 14:44
Platform
win7v20201028
Max time kernel
144s
Max time network
12s
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\haao1.cab.exe_.dll
C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\haao1.cab.exe_.dll
C:\Windows\SysWOW64\wscript.exe
wscript.exe //E:jscript "C:\Users\Public\anFJjtYxH.eB_c_
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/1352-0-0x0000000000000000-mapping.dmp
memory/804-1-0x0000000000000000-mapping.dmp
C:\Users\Public\anFJjtYxH.eB_c_
| MD5 | bf9cfe46e69997b0d8ac4ffb528ab0df |
| SHA1 | 399337ad73221675067a85f3251e31042886d536 |
| SHA256 | 395df3a563bc865221738b938998e6a45094f5c396302e4f151631e78aeb9d2d |
| SHA512 | f432a42d355d5ac058dd68660b9d0a7bd901eaf3b55fd184b3fb2c7b075523eca7e1262bc757fc2600934112fde781823d721a32754f87f6501f487b36b10fa9 |
memory/804-3-0x00000000027A0000-0x00000000027A4000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2020-11-09 20:14
Reported
2020-11-10 14:44
Platform
win10v20201028
Max time kernel
141s
Max time network
116s
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
| Description | Indicator | Process | Target |
| PID 3932 wrote to memory of 788 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 3932 wrote to memory of 788 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 3932 wrote to memory of 788 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 788 wrote to memory of 200 | N/A | C:\Windows\SysWOW64\regsvr32.exe | C:\Windows\SysWOW64\wscript.exe |
| PID 788 wrote to memory of 200 | N/A | C:\Windows\SysWOW64\regsvr32.exe | C:\Windows\SysWOW64\wscript.exe |
| PID 788 wrote to memory of 200 | N/A | C:\Windows\SysWOW64\regsvr32.exe | C:\Windows\SysWOW64\wscript.exe |
Processes
C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\haao1.cab.exe_.dll
C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\haao1.cab.exe_.dll
C:\Windows\SysWOW64\wscript.exe
wscript.exe //E:jscript "C:\Users\Public\anFJjtYxH.eB_c_
C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
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/788-0-0x0000000000000000-mapping.dmp
memory/200-1-0x0000000000000000-mapping.dmp
C:\Users\Public\anFJjtYxH.eB_c_
| MD5 | bf9cfe46e69997b0d8ac4ffb528ab0df |
| SHA1 | 399337ad73221675067a85f3251e31042886d536 |
| SHA256 | 395df3a563bc865221738b938998e6a45094f5c396302e4f151631e78aeb9d2d |
| SHA512 | f432a42d355d5ac058dd68660b9d0a7bd901eaf3b55fd184b3fb2c7b075523eca7e1262bc757fc2600934112fde781823d721a32754f87f6501f487b36b10fa9 |