Analysis
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max time kernel
146s -
max time network
151s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
02-07-2021 13:11
Static task
static1
Behavioral task
behavioral1
Sample
IZ.js
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
IZ.js
Resource
win10v20210408
windows10_x64
0 signatures
0 seconds
General
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Target
IZ.js
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Size
8KB
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MD5
4bf99105c5d9bbc157aa9d697caa3b8b
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SHA1
2820dc89db92b41f33d4b0511f02e4e8682f09c8
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SHA256
2355e659f40169ec63dddce6d88c88411b1b02f4e4ea6cc74d794dd67a214bd0
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SHA512
548898719d35bbb547199236e6cd79c2ca7d35a0016fba4fad08f4b234736cffbc8885b1962795e32ec103c8ed0916ad95db32f5c6a599b23ab14df68448fe87
Score
10/10
Malware Config
Signatures
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Blocklisted process makes network request 1 IoCs
Processes:
wscript.exeflow pid process 7 640 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\IZ.js wscript.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\IZ.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\U5ZE7RY3PD = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\IZ.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 640 wrote to memory of 1968 640 wscript.exe schtasks.exe PID 640 wrote to memory of 1968 640 wscript.exe schtasks.exe
Processes
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\IZ.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\IZ.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/1968-114-0x0000000000000000-mapping.dmp