wshrat | 6b7ff26b67a1dec5452d944cfbc8bf2b1d8e9ddbc72ba16c0256eadfcbebcf33

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
05-05-2024 01:08

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General

Target

0cb55adaebcd33b94fb00efcd1b927b2bc49a05e4ec4f9cc02bb70b3c5dfeb7c.js
Size

830KB
MD5

3f2a1c1daacef7c9dc6f69c5362c9928
SHA1

3ce5d81226174c6c048313b9702fec63491eb339
SHA256

0cb55adaebcd33b94fb00efcd1b927b2bc49a05e4ec4f9cc02bb70b3c5dfeb7c
SHA512

d325873f1fd3bf4393ce60329451874b2a7543c5c3068fd0427030f761f20f9e8539fed72ff24155cfc6d7d609a997c1ceb91cc643a79732c0a2bf97c731eee9
SSDEEP

24576:hKDnslywYmw3SkKNuhf+0s3S3PnukeZauv/k5IgPZ5i:hKbstYmw3SNwhm0CSfgauvmLi

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 34 IoCs

flow	pid	Process
4	1564	wscript.exe
6	1564	wscript.exe
8	1564	wscript.exe
12	1564	wscript.exe
17	1564	wscript.exe
25	1564	wscript.exe
27	1564	wscript.exe
33	1564	wscript.exe
40	1564	wscript.exe
41	1564	wscript.exe
42	1564	wscript.exe
43	1564	wscript.exe
57	1564	wscript.exe
58	1564	wscript.exe
59	1564	wscript.exe
60	1564	wscript.exe
61	1564	wscript.exe
62	1564	wscript.exe
67	1564	wscript.exe
76	1564	wscript.exe
77	1564	wscript.exe
78	1564	wscript.exe
79	1564	wscript.exe
82	1564	wscript.exe
83	1564	wscript.exe
95	1564	wscript.exe
96	1564	wscript.exe
97	1564	wscript.exe
98	1564	wscript.exe
99	1564	wscript.exe
100	1564	wscript.exe
101	1564	wscript.exe
102	1564	wscript.exe
103	1564	wscript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\0cb55adaebcd33b94fb00efcd1b927b2bc49a05e4ec4f9cc02bb70b3c5dfeb7c.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\0cb55adaebcd33b94fb00efcd1b927b2bc49a05e4ec4f9cc02bb70b3c5dfeb7c.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\0cb55adaebcd33b94fb00efcd1b927b2bc49a05e4ec4f9cc02bb70b3c5dfeb7c = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\0cb55adaebcd33b94fb00efcd1b927b2bc49a05e4ec4f9cc02bb70b3c5dfeb7c.js\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\0cb55adaebcd33b94fb00efcd1b927b2bc49a05e4ec4f9cc02bb70b3c5dfeb7c = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\0cb55adaebcd33b94fb00efcd1b927b2bc49a05e4ec4f9cc02bb70b3c5dfeb7c.js\""	wscript.exe

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

Web Service

T1102

flow	ioc
10	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
23	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	33	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	77	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	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	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	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	96	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	99	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	57	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	95	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	59	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	97	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	17	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	27	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	42	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	60	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	67	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	76	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	40	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	41	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	43	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	98	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	12	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	58	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	61	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	78	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\0cb55adaebcd33b94fb00efcd1b927b2bc49a05e4ec4f9cc02bb70b3c5dfeb7c.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:1564

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\0cb55adaebcd33b94fb00efcd1b927b2bc49a05e4ec4f9cc02bb70b3c5dfeb7c.js

Filesize
830KB

MD5
3f2a1c1daacef7c9dc6f69c5362c9928

SHA1
3ce5d81226174c6c048313b9702fec63491eb339

SHA256
0cb55adaebcd33b94fb00efcd1b927b2bc49a05e4ec4f9cc02bb70b3c5dfeb7c

SHA512
d325873f1fd3bf4393ce60329451874b2a7543c5c3068fd0427030f761f20f9e8539fed72ff24155cfc6d7d609a997c1ceb91cc643a79732c0a2bf97c731eee9

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads