Analysis
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max time kernel
431s -
max time network
436s -
platform
windows7_x64 -
resource
win7-20220901-es -
resource tags
arch:x64arch:x86image:win7-20220901-eslocale:es-esos:windows7-x64systemwindows -
submitted
06-12-2022 06:15
Static task
static1
Behavioral task
behavioral1
Sample
Claim_PE84.vhd
Resource
win10-20220812-es
Behavioral task
behavioral2
Sample
Claim_PE84.vhd
Resource
win7-20220901-es
Behavioral task
behavioral3
Sample
Claim_PE84.vhd
Resource
win10v2004-20220812-es
General
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Target
Claim_PE84.vhd
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Size
2.0MB
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MD5
2fe68553beb0a7b084f1b349d6551d9c
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SHA1
c7e8f7b9313e876b10623840989fb07c00203930
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SHA256
edcb8d8e80eb826ec95ed9ccdc1d4470c3edd1782350187fc9bcd776c6d96095
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SHA512
cf9d306a0948217c32dd865a1926c18405cb0e24aef2eadd4bdd81bf9376783fa1a44de90ddc0926e4e6f41094cff99869b325b6d22a200f8f8161ee177fc0a1
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SSDEEP
24576:/wWw8wewswUwBw6gwsw3wTOZqHk2JajfRO8:/wWw8wewswUwBw6gwsw3waZaUY8
Malware Config
Signatures
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies registry class 2 IoCs
Processes:
rundll32.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_Classes\Local Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache rundll32.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
rundll32.exepid process 268 rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
cmd.exedescription pid process target process PID 1228 wrote to memory of 268 1228 cmd.exe rundll32.exe PID 1228 wrote to memory of 268 1228 cmd.exe rundll32.exe PID 1228 wrote to memory of 268 1228 cmd.exe rundll32.exe
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\Claim_PE84.vhd1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Claim_PE84.vhd2⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam