Analysis
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max time kernel
54s -
max time network
17s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
09-11-2020 20:42
Static task
static1
Behavioral task
behavioral1
Sample
Valak (2).cab.dll
Resource
win7v20201028
0 signatures
0 seconds
General
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Target
Valak (2).cab.dll
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Size
288KB
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MD5
eb97ca8128b30794d579d5e8dadc9e81
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SHA1
fbd0647d854dee4943951a058570f0455cd59db5
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SHA256
7c595d596ff5d190ebc057e41424a433e592d3f894fb913e7722eda0cba3913d
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SHA512
61407ffc40309112cda90e5b48cc54545b3c2184a31a2bddb75ac052437b0181b82b9afa294e91aeb3aa01767d277be4c15f95d0236520c77c446673c9fab321
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 1032 wrote to memory of 1836 1032 rundll32.exe rundll32.exe PID 1032 wrote to memory of 1836 1032 rundll32.exe rundll32.exe PID 1032 wrote to memory of 1836 1032 rundll32.exe rundll32.exe PID 1032 wrote to memory of 1836 1032 rundll32.exe rundll32.exe PID 1032 wrote to memory of 1836 1032 rundll32.exe rundll32.exe PID 1032 wrote to memory of 1836 1032 rundll32.exe rundll32.exe PID 1032 wrote to memory of 1836 1032 rundll32.exe rundll32.exe PID 1836 wrote to memory of 1512 1836 rundll32.exe wscript.exe PID 1836 wrote to memory of 1512 1836 rundll32.exe wscript.exe PID 1836 wrote to memory of 1512 1836 rundll32.exe wscript.exe PID 1836 wrote to memory of 1512 1836 rundll32.exe wscript.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe "C:\Users\Admin\AppData\Local\Temp\Valak (2).cab.dll",#11⤵
- Suspicious use of WriteProcessMemory
PID:1032 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe "C:\Users\Admin\AppData\Local\Temp\Valak (2).cab.dll",#12⤵
- Suspicious use of WriteProcessMemory
PID:1836 -
C:\Windows\SysWOW64\wscript.exewscript.exe //E:jscript "C:\Users\Public\CCGYPWTwr.iySAE3⤵PID:1512
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C:\Windows\system32\wbem\WmiApSrv.exeC:\Windows\system32\wbem\WmiApSrv.exe1⤵PID:1340
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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MD5
6df4cb0a89bdabcf858e7e407e3975f5
SHA1f41a9efe9f3cdce394893d90f564bb26e3cdd494
SHA256c65b67bfe6a5acf6ebfb7f327a6ce8f93bfe5ec579fe783f611a73ce031f7232
SHA512a49817c5b27a75263a57398a17f838e935660d554e6b36d8e11ec20817fd08b532851b527c7255d50556d85e1fa985ed0d766d7103f6178ab8ef8bab561b1a41