Analysis
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max time kernel
145s -
max time network
144s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
27-04-2021 17:01
Static task
static1
Behavioral task
behavioral1
Sample
Invoice #829182.js
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
Invoice #829182.js
Resource
win10v20210408
windows10_x64
0 signatures
0 seconds
General
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Target
Invoice #829182.js
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Size
3KB
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MD5
0e54172eaa75a2b67f3dc3799094364d
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SHA1
58e00b2f5499abc1dc38177df4bfe52f8f00dd0a
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SHA256
7c38b186dcf2b5e07c0b53d4f659e8bcf220d0d2472ea3867c2510a4648ff2a5
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SHA512
e5865536e2635ffa89ec6b9642b0131d030646f93dc3528f0d5b4fb34ac810df7b5aad7923df8a0391fb92b1fa7501c569dfc06c9c5dbe1ef3c567e5123b71fc
Score
10/10
Malware Config
Signatures
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Blocklisted process makes network request 1 IoCs
Processes:
wscript.exeflow pid process 5 604 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 #829182.js wscript.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Invoice #829182.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\WYG2YMA3VC = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Invoice #829182.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 604 wrote to memory of 3572 604 wscript.exe schtasks.exe PID 604 wrote to memory of 3572 604 wscript.exe schtasks.exe
Processes
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C:\Windows\system32\wscript.exewscript.exe "C:\Users\Admin\AppData\Local\Temp\Invoice #829182.js"1⤵
- 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 #829182.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/3572-114-0x0000000000000000-mapping.dmp