Analysis
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max time kernel
149s -
max time network
149s -
platform
windows7_x64 -
resource
win7-en-20210920 -
submitted
13-10-2021 15:54
Static task
static1
Behavioral task
behavioral1
Sample
V00JM_Invoice_Copy.js
Resource
win7-en-20210920
Behavioral task
behavioral2
Sample
V00JM_Invoice_Copy.js
Resource
win10v20210408
General
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Target
V00JM_Invoice_Copy.js
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Size
11KB
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MD5
e39be287d5161038ddeaa6ebbca80151
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SHA1
0ab208083961f5054b4042eb86eb1d195701d89d
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SHA256
b91e92bc3dd5d7eddb8c10f8aee1429f262b4cd033e4d1847c7eaf180a0120eb
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SHA512
f524bc2967f94cf6a56e6461e2b5daf4ceef86dc5bf53b15e0c199626c447a4009d632153bc391e54698960f30645866d62865c0f91d7a3be7cd363d844ff8a0
Malware Config
Extracted
vjw0rm
http://mchristopherr83.duckdns.org:7922
Signatures
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Blocklisted process makes network request 1 IoCs
Processes:
wscript.exeflow pid process 5 1596 wscript.exe -
Drops startup file 2 IoCs
Processes:
wscript.exedescription ioc process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\V00JM_Invoice_Copy.js wscript.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\V00JM_Invoice_Copy.js wscript.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
wscript.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows\CurrentVersion\Run wscript.exe Set value (str) \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows\CurrentVersion\Run\JX0T7EQ31M = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\V00JM_Invoice_Copy.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 1596 wrote to memory of 940 1596 wscript.exe schtasks.exe PID 1596 wrote to memory of 940 1596 wscript.exe schtasks.exe PID 1596 wrote to memory of 940 1596 wscript.exe schtasks.exe
Processes
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\V00JM_Invoice_Copy.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\V00JM_Invoice_Copy.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/940-53-0x0000000000000000-mapping.dmp