Analysis
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max time kernel
152s -
max time network
154s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
20/09/2021, 10:56
Static task
static1
Behavioral task
behavioral1
Sample
Overdue Payment.js
Resource
win7v20210408
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
Overdue Payment.js
Resource
win10-en
0 signatures
0 seconds
General
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Target
Overdue Payment.js
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Size
204KB
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MD5
5745363d82b1904ef54b914325d9b69f
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SHA1
5559ccd311497703b8092a51f6cd9301238ad401
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SHA256
7790518717f1e1c674361b4b26955a522541d6f56b73ad27bae7ec9f078c4ce3
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SHA512
389bc5ac5e8c816610c9bb089694a66ed9840ef4383248f91e84136f98811477c936ac6b503768a2a6ce0047981b9a10b304bb4fd777ec9ce7c4207963d101ec
Score
10/10
Malware Config
Signatures
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WSHRAT Payload 2 IoCs
resource yara_rule behavioral1/files/0x00040000000130b8-61.dat family_wshrat behavioral1/files/0x00040000000130b9-62.dat family_wshrat -
Blocklisted process makes network request 29 IoCs
flow pid Process 2 1944 wscript.exe 3 1944 wscript.exe 6 1488 wscript.exe 7 1488 wscript.exe 10 1488 wscript.exe 12 1488 wscript.exe 13 1488 wscript.exe 14 1488 wscript.exe 16 1488 wscript.exe 17 1488 wscript.exe 18 1488 wscript.exe 22 1488 wscript.exe 23 1488 wscript.exe 24 1488 wscript.exe 26 1488 wscript.exe 27 1488 wscript.exe 28 1488 wscript.exe 30 1488 wscript.exe 31 1488 wscript.exe 32 1488 wscript.exe 34 1488 wscript.exe 35 1488 wscript.exe 36 1488 wscript.exe 38 1488 wscript.exe 39 1488 wscript.exe 40 1488 wscript.exe 42 1488 wscript.exe 43 1488 wscript.exe 44 1488 wscript.exe -
Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Overdue Payment.js wscript.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Overdue Payment.js wscript.exe -
Adds Run key to start application 2 TTPs 8 IoCs
description ioc Process Key created \REGISTRY\MACHINE\software\microsoft\windows\currentversion\run wscript.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Overdue Payment = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\Overdue Payment.js\"" wscript.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\software\microsoft\windows\currentversion\run wscript.exe Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\Overdue Payment = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\Overdue Payment.js\"" wscript.exe Key created \REGISTRY\MACHINE\software\microsoft\windows\currentversion\run wscript.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Overdue Payment = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\Overdue Payment.js\"" wscript.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\software\microsoft\windows\currentversion\run wscript.exe Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\Overdue Payment = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\Overdue Payment.js\"" wscript.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs
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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 9 ip-api.com -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Script User-Agent 4 IoCs
Uses user-agent string associated with script host/environment.
description flow ioc HTTP User-Agent header 2 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 3 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 6 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 7 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1944 wrote to memory of 1488 1944 wscript.exe 25 PID 1944 wrote to memory of 1488 1944 wscript.exe 25 PID 1944 wrote to memory of 1488 1944 wscript.exe 25
Processes
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C:\Windows\system32\wscript.exewscript.exe "C:\Users\Admin\AppData\Local\Temp\Overdue Payment.js"1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1944 -
C:\Windows\System32\wscript.exe"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\Overdue Payment.js"2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:1488
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