wshrat | 90287f6a65069dc57e8ceac20e6c80da6afa2cab81eeb70011c1391ff1e8083f

Analysis

max time kernel
148s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
06-05-2024 01:09

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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

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
behavioral2/files/0x000c000000023b62-6.dat	family_wshrat

Blocklisted process makes network request 30 IoCs

flow	pid	Process
6	948	wscript.exe
7	948	wscript.exe
10	948	wscript.exe
12	948	wscript.exe
32	948	wscript.exe
38	948	wscript.exe
40	948	wscript.exe
41	948	wscript.exe
48	948	wscript.exe
62	948	wscript.exe
63	948	wscript.exe
64	948	wscript.exe
65	948	wscript.exe
66	948	wscript.exe
71	948	wscript.exe
73	948	wscript.exe
83	948	wscript.exe
84	948	wscript.exe
85	948	wscript.exe
86	948	wscript.exe
90	948	wscript.exe
100	948	wscript.exe
102	948	wscript.exe
103	948	wscript.exe
104	948	wscript.exe
105	948	wscript.exe
106	948	wscript.exe
107	948	wscript.exe
108	948	wscript.exe
109	948	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-1-5-21-2818691465-3043947619-2475182763-1000\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
5	pastebin.com
7	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
9	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	62	WSHRAT\|AAA7DECE\|LFKTDJGL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	65	WSHRAT\|AAA7DECE\|LFKTDJGL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	108	WSHRAT\|AAA7DECE\|LFKTDJGL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	7	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	63	WSHRAT\|AAA7DECE\|LFKTDJGL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	86	WSHRAT\|AAA7DECE\|LFKTDJGL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	103	WSHRAT\|AAA7DECE\|LFKTDJGL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	109	WSHRAT\|AAA7DECE\|LFKTDJGL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	71	WSHRAT\|AAA7DECE\|LFKTDJGL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	83	WSHRAT\|AAA7DECE\|LFKTDJGL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	6	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	48	WSHRAT\|AAA7DECE\|LFKTDJGL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	64	WSHRAT\|AAA7DECE\|LFKTDJGL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	84	WSHRAT\|AAA7DECE\|LFKTDJGL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	32	WSHRAT\|AAA7DECE\|LFKTDJGL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	102	WSHRAT\|AAA7DECE\|LFKTDJGL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	105	WSHRAT\|AAA7DECE\|LFKTDJGL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	107	WSHRAT\|AAA7DECE\|LFKTDJGL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	38	WSHRAT\|AAA7DECE\|LFKTDJGL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	73	WSHRAT\|AAA7DECE\|LFKTDJGL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	85	WSHRAT\|AAA7DECE\|LFKTDJGL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	90	WSHRAT\|AAA7DECE\|LFKTDJGL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	104	WSHRAT\|AAA7DECE\|LFKTDJGL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	106	WSHRAT\|AAA7DECE\|LFKTDJGL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	40	WSHRAT\|AAA7DECE\|LFKTDJGL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	41	WSHRAT\|AAA7DECE\|LFKTDJGL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	12	WSHRAT\|AAA7DECE\|LFKTDJGL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	66	WSHRAT\|AAA7DECE\|LFKTDJGL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 6/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	100	WSHRAT\|AAA7DECE\|LFKTDJGL\|Admin\|Microsoft Windows 10 Pro\|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:948

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\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