wshrat | 57679766d792132497921ab478f7802f3599a8d19a9c4190045e3a139e9f2c52

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
04-05-2024 01:18

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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
4	1640	wscript.exe
6	1640	wscript.exe
9	1640	wscript.exe
10	1640	wscript.exe
12	1640	wscript.exe
14	1640	wscript.exe
15	1640	wscript.exe
16	1640	wscript.exe
17	1640	wscript.exe
18	1640	wscript.exe
19	1640	wscript.exe
23	1640	wscript.exe
24	1640	wscript.exe
25	1640	wscript.exe
27	1640	wscript.exe
28	1640	wscript.exe
29	1640	wscript.exe
31	1640	wscript.exe
32	1640	wscript.exe
33	1640	wscript.exe
35	1640	wscript.exe
36	1640	wscript.exe
37	1640	wscript.exe
39	1640	wscript.exe
40	1640	wscript.exe
41	1640	wscript.exe
43	1640	wscript.exe
44	1640	wscript.exe
45	1640	wscript.exe
47	1640	wscript.exe
48	1640	wscript.exe
49	1640	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\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\57679766d792132497921ab478f7802f3599a8d19a9c4190045e3a139e9f2c52 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\57679766d792132497921ab478f7802f3599a8d19a9c4190045e3a139e9f2c52.js\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\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
8	pastebin.com
10	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
11	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	17	WSHRAT\|98243646\|BISMIZHX\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	47	WSHRAT\|98243646\|BISMIZHX\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	45	WSHRAT\|98243646\|BISMIZHX\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	16	WSHRAT\|98243646\|BISMIZHX\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	32	WSHRAT\|98243646\|BISMIZHX\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	33	WSHRAT\|98243646\|BISMIZHX\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	36	WSHRAT\|98243646\|BISMIZHX\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	39	WSHRAT\|98243646\|BISMIZHX\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	44	WSHRAT\|98243646\|BISMIZHX\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	9	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	19	WSHRAT\|98243646\|BISMIZHX\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	25	WSHRAT\|98243646\|BISMIZHX\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	35	WSHRAT\|98243646\|BISMIZHX\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	41	WSHRAT\|98243646\|BISMIZHX\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	48	WSHRAT\|98243646\|BISMIZHX\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	49	WSHRAT\|98243646\|BISMIZHX\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	10	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	24	WSHRAT\|98243646\|BISMIZHX\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	31	WSHRAT\|98243646\|BISMIZHX\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	27	WSHRAT\|98243646\|BISMIZHX\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	28	WSHRAT\|98243646\|BISMIZHX\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	40	WSHRAT\|98243646\|BISMIZHX\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	43	WSHRAT\|98243646\|BISMIZHX\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	23	WSHRAT\|98243646\|BISMIZHX\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	37	WSHRAT\|98243646\|BISMIZHX\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	14	WSHRAT\|98243646\|BISMIZHX\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	15	WSHRAT\|98243646\|BISMIZHX\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	18	WSHRAT\|98243646\|BISMIZHX\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 4/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	29	WSHRAT\|98243646\|BISMIZHX\|Admin\|Microsoft Windows 7 Ultimate \|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\57679766d792132497921ab478f7802f3599a8d19a9c4190045e3a139e9f2c52.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:1640

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

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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