Analysis
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max time kernel
120s -
max time network
119s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
09-11-2020 20:42
Static task
static1
Behavioral task
behavioral1
Sample
Valak (3).cab.dll
Resource
win7v20201028
0 signatures
0 seconds
General
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Target
Valak (3).cab.dll
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Size
288KB
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MD5
bcc7730e2801081f94ebae0330aa61b1
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SHA1
26a7c3c30c428983ec4853d0206f2c0523e144e3
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SHA256
9d5d956e165286bd7888cbd7acca8707a18bd21570fed07a5d03be5a13048c85
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SHA512
ba0600ebf31fde83738879f49595a1fa385c4bb908b102a02eba6a5aeb323b06ae26fbdaa9ccde51dc51509988d99d3b488b4d1740a52199adebcb9a572a8e17
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 932 wrote to memory of 1956 932 rundll32.exe rundll32.exe PID 932 wrote to memory of 1956 932 rundll32.exe rundll32.exe PID 932 wrote to memory of 1956 932 rundll32.exe rundll32.exe PID 932 wrote to memory of 1956 932 rundll32.exe rundll32.exe PID 932 wrote to memory of 1956 932 rundll32.exe rundll32.exe PID 932 wrote to memory of 1956 932 rundll32.exe rundll32.exe PID 932 wrote to memory of 1956 932 rundll32.exe rundll32.exe PID 1956 wrote to memory of 1360 1956 rundll32.exe wscript.exe PID 1956 wrote to memory of 1360 1956 rundll32.exe wscript.exe PID 1956 wrote to memory of 1360 1956 rundll32.exe wscript.exe PID 1956 wrote to memory of 1360 1956 rundll32.exe wscript.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe "C:\Users\Admin\AppData\Local\Temp\Valak (3).cab.dll",#11⤵
- Suspicious use of WriteProcessMemory
PID:932 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe "C:\Users\Admin\AppData\Local\Temp\Valak (3).cab.dll",#12⤵
- Suspicious use of WriteProcessMemory
PID:1956 -
C:\Windows\SysWOW64\wscript.exewscript.exe //E:jscript "C:\Users\Public\CCGYPWTwr.iySAE3⤵PID:1360
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C:\Windows\system32\wbem\WmiApSrv.exeC:\Windows\system32\wbem\WmiApSrv.exe1⤵PID:1468
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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MD5
6df4cb0a89bdabcf858e7e407e3975f5
SHA1f41a9efe9f3cdce394893d90f564bb26e3cdd494
SHA256c65b67bfe6a5acf6ebfb7f327a6ce8f93bfe5ec579fe783f611a73ce031f7232
SHA512a49817c5b27a75263a57398a17f838e935660d554e6b36d8e11ec20817fd08b532851b527c7255d50556d85e1fa985ed0d766d7103f6178ab8ef8bab561b1a41