Analysis
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max time kernel
145s -
max time network
192s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
16-07-2021 17:32
Static task
static1
Behavioral task
behavioral1
Sample
#Z90NSAJRA.js
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
#Z90NSAJRA.js
Resource
win10v20210410
windows10_x64
0 signatures
0 seconds
General
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Target
#Z90NSAJRA.js
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Size
9KB
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MD5
eeba1092f27fc5e0905f7cd8b08ff836
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SHA1
ee24cfe1fac3fdc700114abf4d03b7070ceadeb0
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SHA256
3d49eb4b682f1e8148a65416a63aa2b940bc09f0ecc7cfaaee2eb259edde120a
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SHA512
a532c49e5dfa6b6626680eda846e13379863a1b7ca206468df916e49525f44fe7f0b420f60948c2efb23dfc0cc9e08fb03ce7655508b17f8d85a69a655fe7780
Score
10/10
Malware Config
Signatures
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Blocklisted process makes network request 1 IoCs
Processes:
wscript.exeflow pid process 6 1208 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\#Z90NSAJRA.js wscript.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\#Z90NSAJRA.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\ECJ55M0WKI = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\#Z90NSAJRA.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 1208 wrote to memory of 1412 1208 wscript.exe schtasks.exe PID 1208 wrote to memory of 1412 1208 wscript.exe schtasks.exe PID 1208 wrote to memory of 1412 1208 wscript.exe schtasks.exe
Processes
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\#Z90NSAJRA.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\#Z90NSAJRA.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/1412-59-0x0000000000000000-mapping.dmp