Analysis
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max time kernel
137s -
max time network
145s -
platform
windows10_x64 -
resource
win10-en-20211208 -
submitted
13-12-2021 18:55
Static task
static1
Behavioral task
behavioral1
Sample
#00957.js
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
#00957.js
Resource
win10-en-20211208
General
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Target
#00957.js
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Size
9KB
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MD5
422a51830d190a1e37b9a45c05ce539a
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SHA1
022c845c213e2cc1b311e37a1ee9eae32410441e
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SHA256
54b582961ebc52c5017f65743f7e96715ca76ac77a285708f33e76cf6159cecd
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SHA512
97ed9014a86f484701615e4daa60cc6c31c35ef22c033f846016ca3a71636733f628d94dc039754eb2b6c1131859713ca23b3b2fd83a9aa799a83c4806a39b93
Malware Config
Extracted
vjw0rm
http://decebermoney.duckdns.org:8022
Signatures
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Blocklisted process makes network request 1 IoCs
Processes:
wscript.exeflow pid process 11 64 wscript.exe -
Drops startup file 2 IoCs
Processes:
wscript.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\#00957.js wscript.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\#00957.js wscript.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
wscript.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Software\Microsoft\Windows\CurrentVersion\Run wscript.exe Set value (str) \REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Software\Microsoft\Windows\CurrentVersion\Run\7XZCXIM5XX = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\#00957.js\"" wscript.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious use of WriteProcessMemory 2 IoCs
Processes:
wscript.exedescription pid process target process PID 64 wrote to memory of 804 64 wscript.exe schtasks.exe PID 64 wrote to memory of 804 64 wscript.exe schtasks.exe
Processes
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\#00957.js1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:64 -
C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\#00957.js2⤵
- Creates scheduled task(s)
PID:804
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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memory/804-115-0x0000000000000000-mapping.dmp