Analysis
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max time kernel
139s -
max time network
143s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
09-11-2020 20:42
Static task
static1
Behavioral task
behavioral1
Sample
Valak (10).cab.dll
Resource
win7v20201028
0 signatures
0 seconds
General
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Target
Valak (10).cab.dll
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Size
288KB
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MD5
392c11ea740bd9c3e7eea0333533696b
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SHA1
c564eabb3eb3993bcbc38e29260e6e9ccf984a2c
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SHA256
4e163da81fb95781da7b2489f4efc62c276dae1f468af60a4f66063c8d2dbc56
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SHA512
c832c6e9a04cefa5e56d2bc747c4960d1ab798ce06e2f39ff809be40df9c00a5419d33b26320a492453159b83fbd56e311a180873a78583676bff194aaab9f52
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 6 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 580 wrote to memory of 348 580 rundll32.exe rundll32.exe PID 580 wrote to memory of 348 580 rundll32.exe rundll32.exe PID 580 wrote to memory of 348 580 rundll32.exe rundll32.exe PID 348 wrote to memory of 208 348 rundll32.exe wscript.exe PID 348 wrote to memory of 208 348 rundll32.exe wscript.exe PID 348 wrote to memory of 208 348 rundll32.exe wscript.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe "C:\Users\Admin\AppData\Local\Temp\Valak (10).cab.dll",#11⤵
- Suspicious use of WriteProcessMemory
PID:580 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe "C:\Users\Admin\AppData\Local\Temp\Valak (10).cab.dll",#12⤵
- Suspicious use of WriteProcessMemory
PID:348 -
C:\Windows\SysWOW64\wscript.exewscript.exe //E:jscript "C:\Users\Public\CCGYPWTwr.iySAE3⤵PID:208
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C:\Windows\system32\wbem\WmiApSrv.exeC:\Windows\system32\wbem\WmiApSrv.exe1⤵PID:2720
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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MD5
6df4cb0a89bdabcf858e7e407e3975f5
SHA1f41a9efe9f3cdce394893d90f564bb26e3cdd494
SHA256c65b67bfe6a5acf6ebfb7f327a6ce8f93bfe5ec579fe783f611a73ce031f7232
SHA512a49817c5b27a75263a57398a17f838e935660d554e6b36d8e11ec20817fd08b532851b527c7255d50556d85e1fa985ed0d766d7103f6178ab8ef8bab561b1a41