Analysis
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max time kernel
145s -
max time network
152s -
platform
windows10_x64 -
resource
win10v20210410 -
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 7 4048 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-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run wscript.exe Set value (str) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\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 2 IoCs
Processes:
wscript.exedescription pid process target process PID 4048 wrote to memory of 1644 4048 wscript.exe schtasks.exe PID 4048 wrote to memory of 1644 4048 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/1644-114-0x0000000000000000-mapping.dmp