Analysis
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max time kernel
149s -
max time network
152s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
20-12-2021 17:58
Static task
static1
Behavioral task
behavioral1
Sample
GKOPEWRYU.js
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
GKOPEWRYU.js
Resource
win10-en-20211208
General
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Target
GKOPEWRYU.js
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Size
61KB
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MD5
6c65767545d7ad14fa6f2aa28fdd37e1
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SHA1
7a31fc2c58c387e538b8d2c6e288cfacee899ea2
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SHA256
4659be2ae1f69a483f84a858f35ab0b184031a1dbdccfb8b89decaa75004f249
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SHA512
73161f26b1cbd297c89a7b9811837b3bae6a44bf022aadd94ec1c57daddc2092c43809b002e4aab2cd59ecd2cb8ad106ede24d459be2831bf38537c6b8396ea8
Malware Config
Extracted
vjw0rm
http://moneyworm.duckdns.org:8756
Signatures
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Blocklisted process makes network request 3 IoCs
Processes:
wscript.exeflow pid process 5 1752 wscript.exe 8 1752 wscript.exe 9 1752 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\GKOPEWRYU.js wscript.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\GKOPEWRYU.js wscript.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
wscript.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows\CurrentVersion\Run wscript.exe Set value (str) \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows\CurrentVersion\Run\3W88SBC8T0 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\GKOPEWRYU.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 1752 wrote to memory of 620 1752 wscript.exe schtasks.exe PID 1752 wrote to memory of 620 1752 wscript.exe schtasks.exe PID 1752 wrote to memory of 620 1752 wscript.exe schtasks.exe
Processes
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\GKOPEWRYU.js1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1752 -
C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\GKOPEWRYU.js2⤵
- Creates scheduled task(s)
PID:620
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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memory/620-55-0x0000000000000000-mapping.dmp