Analysis
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max time kernel
12s -
max time network
125s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
17-08-2021 15:17
Static task
static1
Behavioral task
behavioral1
Sample
In_WO071.js
Resource
win7v20210408
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
In_WO071.js
Resource
win10v20210410
0 signatures
0 seconds
General
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Target
In_WO071.js
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Size
12KB
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MD5
eeb0261c57ae2557a73b0a66f862e982
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SHA1
aca3295dea76d1d31730bff6f30d3ed453eaca0c
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SHA256
9c048a52d161626ba45d49ba1a412b4cd1fc05520d4193a57d5b2edf7bbb885e
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SHA512
fe6c2bf415b37c5341294dd5b0bfaefffd73dcb92dda241f82341687456ca2b17d3ab07551a7d277b2fb04b31793b77599e6d5f1a68488f379cb4466b5441588
Score
10/10
Malware Config
Signatures
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Blocklisted process makes network request 1 IoCs
Processes:
wscript.exeflow pid process 7 3908 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\In_WO071.js wscript.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\In_WO071.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\O3FNWNFPWY = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\In_WO071.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 3908 wrote to memory of 1664 3908 wscript.exe schtasks.exe PID 3908 wrote to memory of 1664 3908 wscript.exe schtasks.exe
Processes
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\In_WO071.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\In_WO071.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/1664-114-0x0000000000000000-mapping.dmp