Analysis
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max time kernel
148s -
max time network
125s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
07-10-2021 16:35
Static task
static1
Behavioral task
behavioral1
Sample
I1B26A8C6D5Z.js
Resource
win7-en-20210920
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
I1B26A8C6D5Z.js
Resource
win10v20210408
windows10_x64
0 signatures
0 seconds
General
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Target
I1B26A8C6D5Z.js
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Size
81KB
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MD5
fd18077eddfff5bb1d86e8f0de281d6d
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SHA1
1a415d1c8263b8de8eb9352f4855dead687ce7fa
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SHA256
53838e5cc5aed0da2d6f91ab858a442e3e1760aef0cc333ba69e9610993e9ce3
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SHA512
f63f848bcf69be3f71d28ac98bb09e8f6186076d08e216423cedbe3a7cd75b0f1c7bdeb67bf77532730acf9cd3db9bf97d07c57948a4d655eeee802d80c531ec
Score
10/10
Malware Config
Signatures
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Blocklisted process makes network request 1 IoCs
Processes:
wscript.exeflow pid process 9 804 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\I1B26A8C6D5Z.js wscript.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\I1B26A8C6D5Z.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\4YC5ICXZVV = "'C:\\Users\\Admin\\AppData\\Local\\Temp\\I1B26A8C6D5Z.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 804 wrote to memory of 3900 804 wscript.exe schtasks.exe PID 804 wrote to memory of 3900 804 wscript.exe schtasks.exe
Processes
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\I1B26A8C6D5Z.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\I1B26A8C6D5Z.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/3900-114-0x0000000000000000-mapping.dmp