Analysis
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max time kernel
108s -
max time network
113s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
28-07-2021 16:10
Static task
static1
Behavioral task
behavioral1
Sample
Invoice_#01.js
Resource
win7v20210410
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
Invoice_#01.js
Resource
win10v20210408
0 signatures
0 seconds
General
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Target
Invoice_#01.js
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Size
9KB
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MD5
758a8716e34bdc7cc046fcb9383216d9
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SHA1
5faac5dd55211b967333205e71b9d934b14e88b5
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SHA256
a1ee2ea563a62ce42f154749f225613c13b6c5568a0e4d955a2c09895ac1a26e
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SHA512
1fba12f0bc766bcd8ebc3203dd2ef833f0f34f4fd53f435d9f224e97ba450886bb6ecf1aab92cc912a7eaa3e31e100f650a386051438449fcc01f01afa9acbb7
Score
10/10
Malware Config
Signatures
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Blocklisted process makes network request 1 IoCs
Processes:
wscript.exeflow pid process 7 992 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\Invoice_#01.js wscript.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Invoice_#01.js wscript.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
wscript.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run wscript.exe Set value (str) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\MX1CAYIRN3 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Invoice_#01.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 992 wrote to memory of 3340 992 wscript.exe schtasks.exe PID 992 wrote to memory of 3340 992 wscript.exe schtasks.exe
Processes
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\Invoice_#01.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\Invoice_#01.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/3340-114-0x0000000000000000-mapping.dmp