wshrat | 60413aef500d578efcf2ce776c02d9d6b29ec0d1070ea7d758b6c5a3544e7928

General

Target

PendingInvoiceBankDetails.JS.js
Size

1.1MB
MD5

45ece63fd62550c00c23129d45acc6ae
SHA1

428b9734401dbb1c71cbe84894be3ac54f7f8f0f
SHA256

60413aef500d578efcf2ce776c02d9d6b29ec0d1070ea7d758b6c5a3544e7928
SHA512

35a97ce1eb9765d3f306b3478e6607889aa5130239cd85a351c81c94caf964a765db5f455c7777641996fb7f422980689be63ef3593a68c79ee275d2a7dc3935
SSDEEP

24576:xnM9UoHmc6UHyDnk8VYJH2GLvXHLmhWeWJxuLiYZZNJIMmXL/MbiHmKA63OuQFfP:xnmTGCS48ZorOWe6jeZNJIpXjMbiHmKk

Score

10^/10

wshrat execution persistence trojan

Malware Config

Extracted

Family

wshrat

C2

http://masterokrwh.duckdns.org:8426

Signatures

WSHRAT
WSHRAT is a variant of Houdini worm and has vbs and js variants.
trojan wshrat

Blocklisted process makes network request 18 IoCs

flow	pid	Process
5	740	wscript.exe
8	740	wscript.exe
9	740	wscript.exe
14	740	wscript.exe
35	740	wscript.exe
44	740	wscript.exe
45	740	wscript.exe
59	740	wscript.exe
60	740	wscript.exe
61	740	wscript.exe
70	740	wscript.exe
73	740	wscript.exe
77	740	wscript.exe
89	740	wscript.exe
90	740	wscript.exe
91	740	wscript.exe
92	740	wscript.exe
93	740	wscript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PendingInvoiceBankDetails.JS.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PendingInvoiceBankDetails.JS.js	wscript.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3726321484-1950364574-433157660-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\PendingInvoiceBankDetails = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\PendingInvoiceBankDetails.JS.js\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\PendingInvoiceBankDetails = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\PendingInvoiceBankDetails.JS.js\""	wscript.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
7	pastebin.com
9	pastebin.com

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
3	ip-api.com

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Script User-Agent 17 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	70	WSHRAT\|C093FE68\|PYDWGGUE\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 2/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	77	WSHRAT\|C093FE68\|PYDWGGUE\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 2/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	60	WSHRAT\|C093FE68\|PYDWGGUE\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 2/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	61	WSHRAT\|C093FE68\|PYDWGGUE\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 2/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	45	WSHRAT\|C093FE68\|PYDWGGUE\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 2/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	9	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	44	WSHRAT\|C093FE68\|PYDWGGUE\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 2/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	89	WSHRAT\|C093FE68\|PYDWGGUE\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 2/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	91	WSHRAT\|C093FE68\|PYDWGGUE\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 2/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	92	WSHRAT\|C093FE68\|PYDWGGUE\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 2/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	35	WSHRAT\|C093FE68\|PYDWGGUE\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 2/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	73	WSHRAT\|C093FE68\|PYDWGGUE\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 2/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	59	WSHRAT\|C093FE68\|PYDWGGUE\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 2/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	90	WSHRAT\|C093FE68\|PYDWGGUE\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 2/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	93	WSHRAT\|C093FE68\|PYDWGGUE\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 2/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	8	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	14	WSHRAT\|C093FE68\|PYDWGGUE\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 2/5/2024\|JavaScript-v3.4\|GB:United Kingdom

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\PendingInvoiceBankDetails.JS.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:740

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

JavaScript

1

T1059.007

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PendingInvoiceBankDetails.JS.js

Filesize
1.1MB

MD5
45ece63fd62550c00c23129d45acc6ae

SHA1
428b9734401dbb1c71cbe84894be3ac54f7f8f0f

SHA256
60413aef500d578efcf2ce776c02d9d6b29ec0d1070ea7d758b6c5a3544e7928

SHA512
35a97ce1eb9765d3f306b3478e6607889aa5130239cd85a351c81c94caf964a765db5f455c7777641996fb7f422980689be63ef3593a68c79ee275d2a7dc3935

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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