Analysis
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max time kernel
43s -
max time network
45s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
30-09-2022 11:06
Behavioral task
behavioral1
Sample
calc.dll
Resource
win7-20220812-en
windows7-x64
2 signatures
150 seconds
Behavioral task
behavioral2
Sample
calc.dll
Resource
win10v2004-20220901-en
windows10-2004-x64
2 signatures
150 seconds
General
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Target
calc.dll
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Size
204KB
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MD5
9590936149f3ad655e6c6e6e40ffd309
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SHA1
580c1ca3d1d22bfe3ebbf47de4e82465217f3230
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SHA256
39c19171dd55fa81f755f1aa3e431999ece285f50af34331e651a25952e2906e
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SHA512
b1eaf581df67fbac53fc0f1b2061737a15470b415c8e2d429405704a3b60d27cad41ca84020e7a40d43e21760aad542e1db431b7cd9c499c5b1bbb1bc1db314b
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SSDEEP
3072:5dFna2JSkcrnYSdM50RAXSPy0qUiS0Lxh5H4evyzUhjQUc5Gy:FRYkcrY4MCIt07iPlvU0jy
Score
3/10
Malware Config
Signatures
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 808 1108 WerFault.exe rundll32.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 896 wrote to memory of 1108 896 rundll32.exe rundll32.exe PID 896 wrote to memory of 1108 896 rundll32.exe rundll32.exe PID 896 wrote to memory of 1108 896 rundll32.exe rundll32.exe PID 896 wrote to memory of 1108 896 rundll32.exe rundll32.exe PID 896 wrote to memory of 1108 896 rundll32.exe rundll32.exe PID 896 wrote to memory of 1108 896 rundll32.exe rundll32.exe PID 896 wrote to memory of 1108 896 rundll32.exe rundll32.exe PID 1108 wrote to memory of 808 1108 rundll32.exe WerFault.exe PID 1108 wrote to memory of 808 1108 rundll32.exe WerFault.exe PID 1108 wrote to memory of 808 1108 rundll32.exe WerFault.exe PID 1108 wrote to memory of 808 1108 rundll32.exe WerFault.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\calc.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\calc.dll,#12⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1108 -s 2323⤵
- Program crash