wshrat | f2ba66e2e18a13528324d57b98a84c2ec02f3893de90f9fb34be7ab0445c8166

Analysis

max time kernel
146s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
04-05-2024 01:34

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General

Target

d968cf117419570bc67f57a2be52a648d2253346fd60489c06435fdbe518c61e.js
Size

615KB
MD5

8dcc2c7236870e00097d09cadc066b03
SHA1

2c9868c25000e2d7801dc9fd431d6ba99b694e16
SHA256

d968cf117419570bc67f57a2be52a648d2253346fd60489c06435fdbe518c61e
SHA512

918ee5a3a83fcbc098b294077c0fd5888ccc05e0785ef749c788be763ddd2750fe6daa67904b9de2d77cdb9dfab4dc7b65db25e1c18ab5d33f969e81fdae9cf5
SSDEEP

12288:fYeIrWr/qRigAyX/kngXFbjTLvaH28nZH19Iimg0VtxWvTbxzOObcizI/mofdEMp:fYeIrWr/qRigAyX/kngXFbjTLvaH28ng

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 31 IoCs

flow	pid	Process
3	3264	wscript.exe
16	3264	wscript.exe
17	3264	wscript.exe
29	3264	wscript.exe
34	3264	wscript.exe
41	3264	wscript.exe
42	3264	wscript.exe
43	3264	wscript.exe
44	3264	wscript.exe
58	3264	wscript.exe
59	3264	wscript.exe
60	3264	wscript.exe
61	3264	wscript.exe
62	3264	wscript.exe
63	3264	wscript.exe
68	3264	wscript.exe
76	3264	wscript.exe
77	3264	wscript.exe
78	3264	wscript.exe
79	3264	wscript.exe
86	3264	wscript.exe
87	3264	wscript.exe
99	3264	wscript.exe
100	3264	wscript.exe
101	3264	wscript.exe
102	3264	wscript.exe
103	3264	wscript.exe
104	3264	wscript.exe
105	3264	wscript.exe
106	3264	wscript.exe
107	3264	wscript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\d968cf117419570bc67f57a2be52a648d2253346fd60489c06435fdbe518c61e.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\d968cf117419570bc67f57a2be52a648d2253346fd60489c06435fdbe518c61e.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-1-5-21-17203666-93769886-2545153620-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\d968cf117419570bc67f57a2be52a648d2253346fd60489c06435fdbe518c61e = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\d968cf117419570bc67f57a2be52a648d2253346fd60489c06435fdbe518c61e.js\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\d968cf117419570bc67f57a2be52a648d2253346fd60489c06435fdbe518c61e = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\d968cf117419570bc67f57a2be52a648d2253346fd60489c06435fdbe518c61e.js\""	wscript.exe

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

Web Service

T1102

flow	ioc
5	pastebin.com
17	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
1	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 30 IoCs

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

description	flow	ioc
HTTP User-Agent header	34	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	87	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	104	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	29	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	41	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	59	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	86	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	106	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	107	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	16	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	42	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	58	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	61	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	68	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	60	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	77	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	78	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	100	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	105	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	17	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	43	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	63	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	79	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	102	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	62	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	101	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	103	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	44	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	76	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	99	WSHRAT\|20FDBEDC\|EXNCLZLI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\d968cf117419570bc67f57a2be52a648d2253346fd60489c06435fdbe518c61e.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:3264

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\d968cf117419570bc67f57a2be52a648d2253346fd60489c06435fdbe518c61e.js

Filesize
615KB

MD5
8dcc2c7236870e00097d09cadc066b03

SHA1
2c9868c25000e2d7801dc9fd431d6ba99b694e16

SHA256
d968cf117419570bc67f57a2be52a648d2253346fd60489c06435fdbe518c61e

SHA512
918ee5a3a83fcbc098b294077c0fd5888ccc05e0785ef749c788be763ddd2750fe6daa67904b9de2d77cdb9dfab4dc7b65db25e1c18ab5d33f969e81fdae9cf5

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads