Analysis
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max time kernel
145s -
max time network
191s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
27-08-2021 16:31
Static task
static1
Behavioral task
behavioral1
Sample
#W0091.js
Resource
win7v20210410
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
#W0091.js
Resource
win10v20210410
0 signatures
0 seconds
General
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Target
#W0091.js
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Size
12KB
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MD5
d9cf0592d6515534cb8efa5b63cfae5b
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SHA1
93764956ad2a38d3f70dde3ac0410b367bb8a92b
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SHA256
ecb06a64c672927554eeb66d6b0552a147e35eb85a30dadf28d4a2f92d8cb45d
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SHA512
e739a973e401bd3f96721a18fa1dbb5827e63365c4dacc46c7017adc0f6c93cc82b1c0d9fa71726b8e77b6fe1bdad4863d7ba2b4b71741fd001ce912557673f3
Score
10/10
Malware Config
Signatures
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Blocklisted process makes network request 1 IoCs
Processes:
wscript.exeflow pid process 5 592 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\#W0091.js wscript.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\#W0091.js wscript.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
wscript.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run wscript.exe Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\VXBM5F7PI1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\#W0091.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 3 IoCs
Processes:
wscript.exedescription pid process target process PID 592 wrote to memory of 1360 592 wscript.exe schtasks.exe PID 592 wrote to memory of 1360 592 wscript.exe schtasks.exe PID 592 wrote to memory of 1360 592 wscript.exe schtasks.exe
Processes
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\#W0091.js1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\#W0091.js2⤵
- Creates scheduled task(s)
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/1360-60-0x0000000000000000-mapping.dmp