wshrat | e8b589ab580205d0a3cf61367dc5e818aa2a7a90973b95de55502ff6c5853e27

General

Target

Invoice-883973938.js
Size

614KB
MD5

df7e2ec3ee72ab7a80d2542807ea0c25
SHA1

21f70badfff73f0b55d417d08438236f3e7cfd52
SHA256

e8b589ab580205d0a3cf61367dc5e818aa2a7a90973b95de55502ff6c5853e27
SHA512

fda45ee869d1f5f41a0f4846072bc79680474df60fdc2976be6b5d0f886852010607755c5ccf9dde4f13ad848a8107ce2a591142f9d1b42c9f9698c9008c99a1
SSDEEP

12288:bYeIrWr/qRigAyX/kngXFbjTLvaH28nZH19Iimg0VtxWvTbxzOObcizI/mofdEM+:bYeIrWr/qRigAyX/kngXFbjTLvaH28nT

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 27 IoCs

flow	pid	Process
4	108	wscript.exe
6	108	wscript.exe
8	108	wscript.exe
9	108	wscript.exe
12	108	wscript.exe
14	108	wscript.exe
15	108	wscript.exe
16	108	wscript.exe
17	108	wscript.exe
20	108	wscript.exe
21	108	wscript.exe
23	108	wscript.exe
24	108	wscript.exe
25	108	wscript.exe
27	108	wscript.exe
28	108	wscript.exe
29	108	wscript.exe
31	108	wscript.exe
32	108	wscript.exe
33	108	wscript.exe
35	108	wscript.exe
36	108	wscript.exe
37	108	wscript.exe
39	108	wscript.exe
40	108	wscript.exe
41	108	wscript.exe
43	108	wscript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Invoice-883973938.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Invoice-883973938.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-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows\CurrentVersion\Run\Invoice-883973938 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\Invoice-883973938.js\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Invoice-883973938 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\Invoice-883973938.js\""	wscript.exe

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

Web Service

T1102

flow	ioc
7	pastebin.com
9	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 24 IoCs

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

description	flow	ioc
HTTP User-Agent header	21	WSHRAT\|98A703FB\|UIBNQNMA\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 7/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	23	WSHRAT\|98A703FB\|UIBNQNMA\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 7/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	25	WSHRAT\|98A703FB\|UIBNQNMA\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 7/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	31	WSHRAT\|98A703FB\|UIBNQNMA\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 7/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	43	WSHRAT\|98A703FB\|UIBNQNMA\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 7/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	15	WSHRAT\|98A703FB\|UIBNQNMA\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 7/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	20	WSHRAT\|98A703FB\|UIBNQNMA\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 7/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	29	WSHRAT\|98A703FB\|UIBNQNMA\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 7/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	32	WSHRAT\|98A703FB\|UIBNQNMA\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 7/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	33	WSHRAT\|98A703FB\|UIBNQNMA\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 7/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	39	WSHRAT\|98A703FB\|UIBNQNMA\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 7/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	14	WSHRAT\|98A703FB\|UIBNQNMA\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 7/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	17	WSHRAT\|98A703FB\|UIBNQNMA\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 7/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	27	WSHRAT\|98A703FB\|UIBNQNMA\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 7/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	37	WSHRAT\|98A703FB\|UIBNQNMA\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 7/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	40	WSHRAT\|98A703FB\|UIBNQNMA\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 7/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	8	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	16	WSHRAT\|98A703FB\|UIBNQNMA\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 7/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	28	WSHRAT\|98A703FB\|UIBNQNMA\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 7/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	35	WSHRAT\|98A703FB\|UIBNQNMA\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 7/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	36	WSHRAT\|98A703FB\|UIBNQNMA\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 7/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	41	WSHRAT\|98A703FB\|UIBNQNMA\|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	24	WSHRAT\|98A703FB\|UIBNQNMA\|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\Invoice-883973938.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:108

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\Invoice-883973938.js

Filesize
614KB

MD5
df7e2ec3ee72ab7a80d2542807ea0c25

SHA1
21f70badfff73f0b55d417d08438236f3e7cfd52

SHA256
e8b589ab580205d0a3cf61367dc5e818aa2a7a90973b95de55502ff6c5853e27

SHA512
fda45ee869d1f5f41a0f4846072bc79680474df60fdc2976be6b5d0f886852010607755c5ccf9dde4f13ad848a8107ce2a591142f9d1b42c9f9698c9008c99a1

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads