Analysis
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max time kernel
144s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20220310-en -
submitted
17-03-2022 07:16
Static task
static1
Behavioral task
behavioral1
Sample
RFQ.js
Resource
win7-20220310-en
Behavioral task
behavioral2
Sample
RFQ.js
Resource
win10v2004-20220310-en
General
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Target
RFQ.js
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Size
3KB
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MD5
f68bfaf10007b75b933c2a2acab4d54c
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SHA1
7cabe5b37ea9d22450e80d41378c5e8eefa7eea5
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SHA256
a89127ec0c19df41166916cfa4c199d97eade3ec4f0cf4d2281408cfe2790c2a
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SHA512
7ea74f93293e6171338e896243e2ecb696c6b4fbd7cfeffba6e0312a4b8c3789a949e9a0e4e8a566f946d36ebaad59d8477fcaf7681e91b9cc399ff865219a8d
Malware Config
Signatures
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Blocklisted process makes network request 6 IoCs
Processes:
wscript.exeflow pid process 18 1776 wscript.exe 28 1776 wscript.exe 38 1776 wscript.exe 44 1776 wscript.exe 52 1776 wscript.exe 53 1776 wscript.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
wscript.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Control Panel\International\Geo\Nation 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\RFQ.js wscript.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\RFQ.js wscript.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
wscript.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Windows\CurrentVersion\Run wscript.exe Set value (str) \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\U1FBR8C2J2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\RFQ.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 1776 wrote to memory of 2928 1776 wscript.exe schtasks.exe PID 1776 wrote to memory of 2928 1776 wscript.exe schtasks.exe
Processes
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\RFQ.js1⤵
- Blocklisted process makes network request
- Checks computer location settings
- 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\RFQ.js2⤵
- Creates scheduled task(s)