Analysis
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max time kernel
147s -
max time network
149s -
platform
windows7_x64 -
resource
win7-en -
submitted
15/09/2021, 09:07
Static task
static1
Behavioral task
behavioral1
Sample
Overdue Payment.js
Resource
win7-en
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/0x0002000000012ef5-54.dat family_wshrat behavioral1/files/0x0002000000012ef6-55.dat family_wshrat -
Blocklisted process makes network request 33 IoCs
flow pid Process 4 1300 wscript.exe 5 1300 wscript.exe 7 732 wscript.exe 8 732 wscript.exe 13 732 wscript.exe 15 732 wscript.exe 16 732 wscript.exe 17 732 wscript.exe 19 732 wscript.exe 20 732 wscript.exe 21 732 wscript.exe 23 732 wscript.exe 24 732 wscript.exe 25 732 wscript.exe 27 732 wscript.exe 28 732 wscript.exe 29 732 wscript.exe 31 732 wscript.exe 32 732 wscript.exe 33 732 wscript.exe 35 732 wscript.exe 36 732 wscript.exe 37 732 wscript.exe 39 732 wscript.exe 40 732 wscript.exe 41 732 wscript.exe 43 732 wscript.exe 44 732 wscript.exe 45 732 wscript.exe 47 732 wscript.exe 48 732 wscript.exe 49 732 wscript.exe 51 732 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-1-5-21-1669990088-476967504-438132596-1000\software\microsoft\windows\currentversion\run wscript.exe Set value (str) \REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000\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-1-5-21-1669990088-476967504-438132596-1000\software\microsoft\windows\currentversion\run wscript.exe Set value (str) \REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000\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 12 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 32 IoCs
Uses user-agent string associated with script host/environment.
description flow ioc HTTP User-Agent header 4 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 7 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 17 WSHRAT|AC743D2F|KJUCCLUP|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 15/9/2021|JavaScript-v3.4|NL:Netherlands HTTP User-Agent header 21 WSHRAT|AC743D2F|KJUCCLUP|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 15/9/2021|JavaScript-v3.4|NL:Netherlands HTTP User-Agent header 36 WSHRAT|AC743D2F|KJUCCLUP|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 15/9/2021|JavaScript-v3.4|NL:Netherlands HTTP User-Agent header 37 WSHRAT|AC743D2F|KJUCCLUP|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 15/9/2021|JavaScript-v3.4|NL:Netherlands HTTP User-Agent header 15 WSHRAT|AC743D2F|KJUCCLUP|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 15/9/2021|JavaScript-v3.4|NL:Netherlands HTTP User-Agent header 19 WSHRAT|AC743D2F|KJUCCLUP|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 15/9/2021|JavaScript-v3.4|NL:Netherlands HTTP User-Agent header 28 WSHRAT|AC743D2F|KJUCCLUP|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 15/9/2021|JavaScript-v3.4|NL:Netherlands HTTP User-Agent header 33 WSHRAT|AC743D2F|KJUCCLUP|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 15/9/2021|JavaScript-v3.4|NL:Netherlands HTTP User-Agent header 40 WSHRAT|AC743D2F|KJUCCLUP|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 15/9/2021|JavaScript-v3.4|NL:Netherlands HTTP User-Agent header 43 WSHRAT|AC743D2F|KJUCCLUP|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 15/9/2021|JavaScript-v3.4|NL:Netherlands HTTP User-Agent header 23 WSHRAT|AC743D2F|KJUCCLUP|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 15/9/2021|JavaScript-v3.4|NL:Netherlands HTTP User-Agent header 24 WSHRAT|AC743D2F|KJUCCLUP|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 15/9/2021|JavaScript-v3.4|NL:Netherlands HTTP User-Agent header 39 WSHRAT|AC743D2F|KJUCCLUP|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 15/9/2021|JavaScript-v3.4|NL:Netherlands HTTP User-Agent header 29 WSHRAT|AC743D2F|KJUCCLUP|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 15/9/2021|JavaScript-v3.4|NL:Netherlands HTTP User-Agent header 44 WSHRAT|AC743D2F|KJUCCLUP|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 15/9/2021|JavaScript-v3.4|NL:Netherlands HTTP User-Agent header 48 WSHRAT|AC743D2F|KJUCCLUP|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 15/9/2021|JavaScript-v3.4|NL:Netherlands HTTP User-Agent header 16 WSHRAT|AC743D2F|KJUCCLUP|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 15/9/2021|JavaScript-v3.4|NL:Netherlands HTTP User-Agent header 41 WSHRAT|AC743D2F|KJUCCLUP|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 15/9/2021|JavaScript-v3.4|NL:Netherlands HTTP User-Agent header 20 WSHRAT|AC743D2F|KJUCCLUP|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 15/9/2021|JavaScript-v3.4|NL:Netherlands HTTP User-Agent header 35 WSHRAT|AC743D2F|KJUCCLUP|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 15/9/2021|JavaScript-v3.4|NL:Netherlands HTTP User-Agent header 51 WSHRAT|AC743D2F|KJUCCLUP|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 15/9/2021|JavaScript-v3.4|NL:Netherlands HTTP User-Agent header 8 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 25 WSHRAT|AC743D2F|KJUCCLUP|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 15/9/2021|JavaScript-v3.4|NL:Netherlands HTTP User-Agent header 27 WSHRAT|AC743D2F|KJUCCLUP|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 15/9/2021|JavaScript-v3.4|NL:Netherlands HTTP User-Agent header 31 WSHRAT|AC743D2F|KJUCCLUP|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 15/9/2021|JavaScript-v3.4|NL:Netherlands HTTP User-Agent header 32 WSHRAT|AC743D2F|KJUCCLUP|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 15/9/2021|JavaScript-v3.4|NL:Netherlands HTTP User-Agent header 47 WSHRAT|AC743D2F|KJUCCLUP|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 15/9/2021|JavaScript-v3.4|NL:Netherlands HTTP User-Agent header 5 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 45 WSHRAT|AC743D2F|KJUCCLUP|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 15/9/2021|JavaScript-v3.4|NL:Netherlands HTTP User-Agent header 49 WSHRAT|AC743D2F|KJUCCLUP|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 15/9/2021|JavaScript-v3.4|NL:Netherlands -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1300 wrote to memory of 732 1300 wscript.exe 26 PID 1300 wrote to memory of 732 1300 wscript.exe 26 PID 1300 wrote to memory of 732 1300 wscript.exe 26
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:1300 -
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:732
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