wshrat | 90287f6a65069dc57e8ceac20e6c80da6afa2cab81eeb70011c1391ff1e8083f

General

Target

Invoice_(PO_3078320)_EXIM-TECH.js
Size

376KB
MD5

c8fb1648a210dc192935a6e3c8f7cf18
SHA1

ea948879f297cfbb8ab96ba080c4f395dbda3e53
SHA256

90287f6a65069dc57e8ceac20e6c80da6afa2cab81eeb70011c1391ff1e8083f
SHA512

6ed050a0c5bf0921fc4e431bfd7bdda13c4a2d7395c7a333a3255fd7ad6e815f3da55e054d5fdb930fa17c79d8d81919a241b1494fbd2ca9629323424a6a8d49
SSDEEP

6144:lEaXAklgF2GuuZHi6/eMngRCEeGKjCNEaXAklgF2GuuZHi6/eMngRCEeGKjC/:Nvl029SiogKGKjCVvl029SiogKGKjC/

Score

10^/10

wshrat execution persistence trojan

Malware Config

Extracted

Family

wshrat

C2

http://masterokrwh.duckdns.org:7963

Signatures

WSHRAT
WSHRAT is a variant of Houdini worm and has vbs and js variants.
trojan wshrat

WSHRAT payload 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001445e-5.dat	family_wshrat

Blocklisted process makes network request 28 IoCs

flow	pid	Process
3	2076	wscript.exe
4	2076	wscript.exe
8	2076	wscript.exe
10	2076	wscript.exe
11	2076	wscript.exe
12	2076	wscript.exe
14	2076	wscript.exe
15	2076	wscript.exe
16	2076	wscript.exe
18	2076	wscript.exe
19	2076	wscript.exe
20	2076	wscript.exe
22	2076	wscript.exe
23	2076	wscript.exe
24	2076	wscript.exe
26	2076	wscript.exe
27	2076	wscript.exe
28	2076	wscript.exe
30	2076	wscript.exe
31	2076	wscript.exe
32	2076	wscript.exe
34	2076	wscript.exe
35	2076	wscript.exe
36	2076	wscript.exe
38	2076	wscript.exe
39	2076	wscript.exe
40	2076	wscript.exe
42	2076	wscript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Invoice_(PO_3078320)_EXIM-TECH.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Invoice_(PO_3078320)_EXIM-TECH.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\Invoice_(PO_3078320)_EXIM-TECH = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\Invoice_(PO_3078320)_EXIM-TECH.js\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Invoice_(PO_3078320)_EXIM-TECH = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\Invoice_(PO_3078320)_EXIM-TECH.js\""	wscript.exe

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

Web Service

T1102

flow	ioc
4	pastebin.com
2	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
7	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 27 IoCs

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

description	flow	ioc
HTTP User-Agent header	12	WSHRAT\|B4048E31\|KXIPPCKF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	15	WSHRAT\|B4048E31\|KXIPPCKF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	3	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	35	WSHRAT\|B4048E31\|KXIPPCKF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	42	WSHRAT\|B4048E31\|KXIPPCKF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	4	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	11	WSHRAT\|B4048E31\|KXIPPCKF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	38	WSHRAT\|B4048E31\|KXIPPCKF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	40	WSHRAT\|B4048E31\|KXIPPCKF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	26	WSHRAT\|B4048E31\|KXIPPCKF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	28	WSHRAT\|B4048E31\|KXIPPCKF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	30	WSHRAT\|B4048E31\|KXIPPCKF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	31	WSHRAT\|B4048E31\|KXIPPCKF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	14	WSHRAT\|B4048E31\|KXIPPCKF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	18	WSHRAT\|B4048E31\|KXIPPCKF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	20	WSHRAT\|B4048E31\|KXIPPCKF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	32	WSHRAT\|B4048E31\|KXIPPCKF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	16	WSHRAT\|B4048E31\|KXIPPCKF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	23	WSHRAT\|B4048E31\|KXIPPCKF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	36	WSHRAT\|B4048E31\|KXIPPCKF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	39	WSHRAT\|B4048E31\|KXIPPCKF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	10	WSHRAT\|B4048E31\|KXIPPCKF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	19	WSHRAT\|B4048E31\|KXIPPCKF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	27	WSHRAT\|B4048E31\|KXIPPCKF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	34	WSHRAT\|B4048E31\|KXIPPCKF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	22	WSHRAT\|B4048E31\|KXIPPCKF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	24	WSHRAT\|B4048E31\|KXIPPCKF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\Invoice_(PO_3078320)_EXIM-TECH.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:2076

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_(PO_3078320)_EXIM-TECH.js

Filesize
376KB

MD5
c8fb1648a210dc192935a6e3c8f7cf18

SHA1
ea948879f297cfbb8ab96ba080c4f395dbda3e53

SHA256
90287f6a65069dc57e8ceac20e6c80da6afa2cab81eeb70011c1391ff1e8083f

SHA512
6ed050a0c5bf0921fc4e431bfd7bdda13c4a2d7395c7a333a3255fd7ad6e815f3da55e054d5fdb930fa17c79d8d81919a241b1494fbd2ca9629323424a6a8d49

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads