Analysis
-
max time kernel
122s -
max time network
145s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
14-12-2021 06:58
Static task
static1
Behavioral task
behavioral1
Sample
#00958.js
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
#00958.js
Resource
win10-en-20211208
General
-
Target
#00958.js
-
Size
66KB
-
MD5
abc0656ab4c966d440a154fd0174684f
-
SHA1
d8a46b049aaf91a52871b9b63317502948c3840c
-
SHA256
b6977bce6d9b944310f27e7febb8dfb8315ab7b589181d05a46c86ad6793fb18
-
SHA512
5e8cbd3f788f5acba2cd4babb054bbbbef669d8b9ec4424537200cf4d03be7e2488f2e77bf0b97ff8c8dc23e112f2e2835173db9e8e5bd0e3c53bc5f29af07c7
Malware Config
Extracted
vjw0rm
http://decebermoney.duckdns.org:8022
Signatures
-
Blocklisted process makes network request 2 IoCs
Processes:
wscript.exeflow pid process 5 1192 wscript.exe 6 1192 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\#00958.js wscript.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\#00958.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\7XZCXIM5XX = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\#00958.js\"" wscript.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
-
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
wscript.exedescription pid process target process PID 1192 wrote to memory of 560 1192 wscript.exe schtasks.exe PID 1192 wrote to memory of 560 1192 wscript.exe schtasks.exe PID 1192 wrote to memory of 560 1192 wscript.exe schtasks.exe
Processes
-
C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\#00958.js1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\#00958.js2⤵
- Creates scheduled task(s)
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
memory/560-55-0x0000000000000000-mapping.dmp