wshrat | 64a6e15edb83670237b6c80c8bb4ffae41fc1371937981561fd8a3b010ca1572

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
05-05-2024 01:13

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General

Target

57679766d792132497921ab478f7802f3599a8d19a9c4190045e3a139e9f2c52.js
Size

2.1MB
MD5

40d85b56e7392f84a265c3e43209112c
SHA1

c10e1c1c487f84dbb2cf5089f473529114a89859
SHA256

57679766d792132497921ab478f7802f3599a8d19a9c4190045e3a139e9f2c52
SHA512

203709c65208887bdc78bc02d366ee48a04b90e7e701876416a04b98b12e01e18e5468ddb69ff018ea52816b9e4eae0787bc024cc550d2d35271191829ae7690
SSDEEP

49152:gZknKnkiP2Kkaq4ePu3SomhEvQZuqCniSZae2h6ifBUw5LWrVRRNb/YopQESU3oW:w

Score

10^/10

wshrat execution persistence trojan

Malware Config

Extracted

Family

wshrat

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 32 IoCs

flow	pid	Process
24	3356	wscript.exe
26	3356	wscript.exe
30	3356	wscript.exe
31	3356	wscript.exe
33	3356	wscript.exe
35	3356	wscript.exe
45	3356	wscript.exe
46	3356	wscript.exe
47	3356	wscript.exe
48	3356	wscript.exe
62	3356	wscript.exe
63	3356	wscript.exe
64	3356	wscript.exe
65	3356	wscript.exe
66	3356	wscript.exe
69	3356	wscript.exe
79	3356	wscript.exe
80	3356	wscript.exe
81	3356	wscript.exe
82	3356	wscript.exe
83	3356	wscript.exe
87	3356	wscript.exe
100	3356	wscript.exe
101	3356	wscript.exe
102	3356	wscript.exe
103	3356	wscript.exe
104	3356	wscript.exe
105	3356	wscript.exe
106	3356	wscript.exe
107	3356	wscript.exe
108	3356	wscript.exe
109	3356	wscript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\57679766d792132497921ab478f7802f3599a8d19a9c4190045e3a139e9f2c52.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\57679766d792132497921ab478f7802f3599a8d19a9c4190045e3a139e9f2c52.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\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\57679766d792132497921ab478f7802f3599a8d19a9c4190045e3a139e9f2c52 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\57679766d792132497921ab478f7802f3599a8d19a9c4190045e3a139e9f2c52.js\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-17203666-93769886-2545153620-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\57679766d792132497921ab478f7802f3599a8d19a9c4190045e3a139e9f2c52 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\57679766d792132497921ab478f7802f3599a8d19a9c4190045e3a139e9f2c52.js\""	wscript.exe

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

Web Service

T1102

flow	ioc
31	pastebin.com
29	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
32	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 29 IoCs

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

description	flow	ioc
HTTP User-Agent header	102	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	80	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	82	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	62	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	63	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	66	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	79	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	100	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	101	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	30	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	46	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	81	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	83	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	87	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	106	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	31	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	47	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	104	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	48	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	65	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	107	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	64	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	103	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	69	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	105	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	108	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	109	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	35	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	45	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\57679766d792132497921ab478f7802f3599a8d19a9c4190045e3a139e9f2c52.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:3356

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\57679766d792132497921ab478f7802f3599a8d19a9c4190045e3a139e9f2c52.js

Filesize
2.1MB

MD5
40d85b56e7392f84a265c3e43209112c

SHA1
c10e1c1c487f84dbb2cf5089f473529114a89859

SHA256
57679766d792132497921ab478f7802f3599a8d19a9c4190045e3a139e9f2c52

SHA512
203709c65208887bdc78bc02d366ee48a04b90e7e701876416a04b98b12e01e18e5468ddb69ff018ea52816b9e4eae0787bc024cc550d2d35271191829ae7690

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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