Analysis
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max time kernel
148s -
max time network
149s -
platform
windows7_x64 -
resource
win7-en-20211014 -
submitted
02-12-2021 16:29
Static task
static1
Behavioral task
behavioral1
Sample
Paid-Invoice.js
Resource
win7-en-20211014
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
Paid-Invoice.js
Resource
win10-en-20211104
0 signatures
0 seconds
General
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Target
Paid-Invoice.js
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Size
9KB
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MD5
5a78ce5d4ae0c6fb3dfc30056da39d20
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SHA1
ee29630daf78a9dc5bbd0c279bd9c82f560536c3
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SHA256
da04c2f890db89ea8d49585214a52b105eeb0c80e72c968e5147099bf411668e
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SHA512
eaf467a84a4ebc49735fee3c68da4947eef08905b8a9752aaaf6f74b4561444fa4b8f232ce2f47621fa9d03ff614615494565ae9b10465899c2d8ebaa78d66fa
Score
10/10
Malware Config
Signatures
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Blocklisted process makes network request 17 IoCs
Processes:
wscript.exeflow pid process 5 876 wscript.exe 6 876 wscript.exe 7 876 wscript.exe 9 876 wscript.exe 10 876 wscript.exe 11 876 wscript.exe 13 876 wscript.exe 14 876 wscript.exe 15 876 wscript.exe 17 876 wscript.exe 18 876 wscript.exe 19 876 wscript.exe 21 876 wscript.exe 22 876 wscript.exe 23 876 wscript.exe 25 876 wscript.exe 26 876 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\Paid-Invoice.js wscript.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Paid-Invoice.js wscript.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
wscript.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Windows\CurrentVersion\Run wscript.exe Set value (str) \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Windows\CurrentVersion\Run\JKEGCD8SGS = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Paid-Invoice.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 3 IoCs
Processes:
wscript.exedescription pid process target process PID 876 wrote to memory of 1056 876 wscript.exe schtasks.exe PID 876 wrote to memory of 1056 876 wscript.exe schtasks.exe PID 876 wrote to memory of 1056 876 wscript.exe schtasks.exe
Processes
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\Paid-Invoice.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\Paid-Invoice.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/1056-55-0x0000000000000000-mapping.dmp