Analysis
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max time kernel
53s -
max time network
10s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
09-11-2020 20:42
Static task
static1
Behavioral task
behavioral1
Sample
Valak (1).cab.dll
Resource
win7v20201028
0 signatures
0 seconds
General
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Target
Valak (1).cab.dll
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Size
288KB
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MD5
414b7c1771c2ddfb6fd489c44b705d70
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SHA1
200394c55ff5e505ac67768ce531c5c205506b72
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SHA256
09f9d0b09945af8d89176503973dac5904cb109faeb369456767273f6ad020f7
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SHA512
04b4729ddeeb1de07f2949296b38a690e64a1086155dcdd0d0e9c2a358375e95fa976fe1ba73b4a01630ac357dcd8a3119ba953fc8423a287e0c706f4ddde985
Malware Config
Signatures
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Valak JavaScript Loader 2 IoCs
Processes:
resource yara_rule C:\Users\Public\CCGYPWTwr.iySAE valak C:\Users\Public\CCGYPWTwr.iySAE valak_js -
JavaScript code in executable 1 IoCs
Processes:
resource yara_rule C:\Users\Public\CCGYPWTwr.iySAE js -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 1848 wrote to memory of 1404 1848 rundll32.exe rundll32.exe PID 1848 wrote to memory of 1404 1848 rundll32.exe rundll32.exe PID 1848 wrote to memory of 1404 1848 rundll32.exe rundll32.exe PID 1848 wrote to memory of 1404 1848 rundll32.exe rundll32.exe PID 1848 wrote to memory of 1404 1848 rundll32.exe rundll32.exe PID 1848 wrote to memory of 1404 1848 rundll32.exe rundll32.exe PID 1848 wrote to memory of 1404 1848 rundll32.exe rundll32.exe PID 1404 wrote to memory of 300 1404 rundll32.exe wscript.exe PID 1404 wrote to memory of 300 1404 rundll32.exe wscript.exe PID 1404 wrote to memory of 300 1404 rundll32.exe wscript.exe PID 1404 wrote to memory of 300 1404 rundll32.exe wscript.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe "C:\Users\Admin\AppData\Local\Temp\Valak (1).cab.dll",#11⤵
- Suspicious use of WriteProcessMemory
PID:1848 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe "C:\Users\Admin\AppData\Local\Temp\Valak (1).cab.dll",#12⤵
- Suspicious use of WriteProcessMemory
PID:1404 -
C:\Windows\SysWOW64\wscript.exewscript.exe //E:jscript "C:\Users\Public\CCGYPWTwr.iySAE3⤵PID:300
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C:\Windows\system32\wbem\WmiApSrv.exeC:\Windows\system32\wbem\WmiApSrv.exe1⤵PID:1552
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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MD5
6df4cb0a89bdabcf858e7e407e3975f5
SHA1f41a9efe9f3cdce394893d90f564bb26e3cdd494
SHA256c65b67bfe6a5acf6ebfb7f327a6ce8f93bfe5ec579fe783f611a73ce031f7232
SHA512a49817c5b27a75263a57398a17f838e935660d554e6b36d8e11ec20817fd08b532851b527c7255d50556d85e1fa985ed0d766d7103f6178ab8ef8bab561b1a41