Analysis
-
max time kernel
150s -
max time network
175s -
platform
windows7_x64 -
resource
win7v20210410 -
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
-
Target
IZ.js
-
Size
8KB
-
MD5
4bf99105c5d9bbc157aa9d697caa3b8b
-
SHA1
2820dc89db92b41f33d4b0511f02e4e8682f09c8
-
SHA256
2355e659f40169ec63dddce6d88c88411b1b02f4e4ea6cc74d794dd67a214bd0
-
SHA512
548898719d35bbb547199236e6cd79c2ca7d35a0016fba4fad08f4b234736cffbc8885b1962795e32ec103c8ed0916ad95db32f5c6a599b23ab14df68448fe87
Score
10/10
Malware Config
Signatures
-
Blocklisted process makes network request 1 IoCs
Processes:
wscript.exeflow pid process 5 1652 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-1-5-21-2513283230-931923277-594887482-1000\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\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.
-
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
-
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
wscript.exedescription pid process target process PID 1652 wrote to memory of 1524 1652 wscript.exe schtasks.exe PID 1652 wrote to memory of 1524 1652 wscript.exe schtasks.exe PID 1652 wrote to memory of 1524 1652 wscript.exe schtasks.exe
Processes
-
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
-
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
Loading Replay Monitor...
Downloads
-
memory/1524-59-0x0000000000000000-mapping.dmp