wshrat | 3680c60d58b895a8a423ee6ce62f9bfc23effb87522194c1637d67c148b9778d

General

Target

Pending_Invoice_Bank_Details_kofce_.JS.js
Size

616KB
MD5

9c3aaa1354531b2f4c194af6be1dfce7
SHA1

cef62c19f65f6985bb473c7b2469c3512f916933
SHA256

3680c60d58b895a8a423ee6ce62f9bfc23effb87522194c1637d67c148b9778d
SHA512

ebc2c1a3d28d7ceab9447baa6c1341183ba17f74de24b3bee6ddaaa84c81d6b4edd97c0f90d3231c643da28520626741b81423593b7d29b08fba4dc2d48f0d97
SSDEEP

12288:+YeIrWr/qRigAyX/kngXFbjTLvaH28nZH19Iimg0VtxWvTbxzOObcizI/mofdEM+:+YeIrWr/qRigAyX/kngXFbjTLvaH28n1

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 12 IoCs

flow	pid	Process
4	1952	wscript.exe
6	1952	wscript.exe
9	1952	wscript.exe
10	1952	wscript.exe
12	1952	wscript.exe
14	1952	wscript.exe
15	1952	wscript.exe
18	1952	wscript.exe
19	1952	wscript.exe
20	1952	wscript.exe
21	1952	wscript.exe
23	1952	wscript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Pending_Invoice_Bank_Details_kofce_.JS.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Pending_Invoice_Bank_Details_kofce_.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-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\Pending_Invoice_Bank_Details_kofce_ = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\Pending_Invoice_Bank_Details_kofce_.JS.js\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Pending_Invoice_Bank_Details_kofce_ = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\Pending_Invoice_Bank_Details_kofce_.JS.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 9 IoCs

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

description	flow	ioc
HTTP User-Agent header	14	WSHRAT\|B4048E31\|KXIPPCKF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 7/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	15	WSHRAT\|B4048E31\|KXIPPCKF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 7/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	23	WSHRAT\|B4048E31\|KXIPPCKF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 7/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	21	WSHRAT\|B4048E31\|KXIPPCKF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 7/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	9	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	10	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	18	WSHRAT\|B4048E31\|KXIPPCKF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 7/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	19	WSHRAT\|B4048E31\|KXIPPCKF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 7/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	20	WSHRAT\|B4048E31\|KXIPPCKF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 7/5/2024\|JavaScript-v3.4\|GB:United Kingdom

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\Pending_Invoice_Bank_Details_kofce_.JS.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:1952

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\Pending_Invoice_Bank_Details_kofce_.JS.js

Filesize
616KB

MD5
9c3aaa1354531b2f4c194af6be1dfce7

SHA1
cef62c19f65f6985bb473c7b2469c3512f916933

SHA256
3680c60d58b895a8a423ee6ce62f9bfc23effb87522194c1637d67c148b9778d

SHA512
ebc2c1a3d28d7ceab9447baa6c1341183ba17f74de24b3bee6ddaaa84c81d6b4edd97c0f90d3231c643da28520626741b81423593b7d29b08fba4dc2d48f0d97

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads