wshrat | 6b7ff26b67a1dec5452d944cfbc8bf2b1d8e9ddbc72ba16c0256eadfcbebcf33

General

Target

0cb55adaebcd33b94fb00efcd1b927b2bc49a05e4ec4f9cc02bb70b3c5dfeb7c.js
Size

830KB
MD5

3f2a1c1daacef7c9dc6f69c5362c9928
SHA1

3ce5d81226174c6c048313b9702fec63491eb339
SHA256

0cb55adaebcd33b94fb00efcd1b927b2bc49a05e4ec4f9cc02bb70b3c5dfeb7c
SHA512

d325873f1fd3bf4393ce60329451874b2a7543c5c3068fd0427030f761f20f9e8539fed72ff24155cfc6d7d609a997c1ceb91cc643a79732c0a2bf97c731eee9
SSDEEP

24576:hKDnslywYmw3SkKNuhf+0s3S3PnukeZauv/k5IgPZ5i:hKbstYmw3SNwhm0CSfgauvmLi

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 32 IoCs

Processes:

wscript.exe

flow	pid	process
4	1712	wscript.exe
6	1712	wscript.exe
9	1712	wscript.exe
10	1712	wscript.exe
12	1712	wscript.exe
14	1712	wscript.exe
15	1712	wscript.exe
16	1712	wscript.exe
17	1712	wscript.exe
18	1712	wscript.exe
21	1712	wscript.exe
23	1712	wscript.exe
24	1712	wscript.exe
25	1712	wscript.exe
27	1712	wscript.exe
28	1712	wscript.exe
29	1712	wscript.exe
31	1712	wscript.exe
32	1712	wscript.exe
33	1712	wscript.exe
35	1712	wscript.exe
36	1712	wscript.exe
37	1712	wscript.exe
39	1712	wscript.exe
40	1712	wscript.exe
41	1712	wscript.exe
43	1712	wscript.exe
44	1712	wscript.exe
45	1712	wscript.exe
47	1712	wscript.exe
48	1712	wscript.exe
49	1712	wscript.exe

Drops startup file 2 IoCs

Processes:

wscript.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\0cb55adaebcd33b94fb00efcd1b927b2bc49a05e4ec4f9cc02bb70b3c5dfeb7c.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\0cb55adaebcd33b94fb00efcd1b927b2bc49a05e4ec4f9cc02bb70b3c5dfeb7c.js	wscript.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

wscript.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\0cb55adaebcd33b94fb00efcd1b927b2bc49a05e4ec4f9cc02bb70b3c5dfeb7c = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\0cb55adaebcd33b94fb00efcd1b927b2bc49a05e4ec4f9cc02bb70b3c5dfeb7c.js\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\0cb55adaebcd33b94fb00efcd1b927b2bc49a05e4ec4f9cc02bb70b3c5dfeb7c = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\0cb55adaebcd33b94fb00efcd1b927b2bc49a05e4ec4f9cc02bb70b3c5dfeb7c.js\""	wscript.exe

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

Web Service
T1102

Processes:

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.

Processes:

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

flow	ioc
8	pastebin.com
10	pastebin.com

flow	ioc
11	ip-api.com

Script User-Agent 29 IoCs

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

Processes:

description	flow	ioc
HTTP User-Agent header	28	WSHRAT\|688E6B44\|HKULBIBU\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	32	WSHRAT\|688E6B44\|HKULBIBU\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	36	WSHRAT\|688E6B44\|HKULBIBU\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	41	WSHRAT\|688E6B44\|HKULBIBU\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	44	WSHRAT\|688E6B44\|HKULBIBU\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	47	WSHRAT\|688E6B44\|HKULBIBU\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	10	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	18	WSHRAT\|688E6B44\|HKULBIBU\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	43	WSHRAT\|688E6B44\|HKULBIBU\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	49	WSHRAT\|688E6B44\|HKULBIBU\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	33	WSHRAT\|688E6B44\|HKULBIBU\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	37	WSHRAT\|688E6B44\|HKULBIBU\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	45	WSHRAT\|688E6B44\|HKULBIBU\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	48	WSHRAT\|688E6B44\|HKULBIBU\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	23	WSHRAT\|688E6B44\|HKULBIBU\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	15	WSHRAT\|688E6B44\|HKULBIBU\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	21	WSHRAT\|688E6B44\|HKULBIBU\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	27	WSHRAT\|688E6B44\|HKULBIBU\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	40	WSHRAT\|688E6B44\|HKULBIBU\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	17	WSHRAT\|688E6B44\|HKULBIBU\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	24	WSHRAT\|688E6B44\|HKULBIBU\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	35	WSHRAT\|688E6B44\|HKULBIBU\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	16	WSHRAT\|688E6B44\|HKULBIBU\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	31	WSHRAT\|688E6B44\|HKULBIBU\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	9	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	29	WSHRAT\|688E6B44\|HKULBIBU\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	39	WSHRAT\|688E6B44\|HKULBIBU\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	14	WSHRAT\|688E6B44\|HKULBIBU\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	25	WSHRAT\|688E6B44\|HKULBIBU\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/5/2024\|JavaScript-v3.4\|GB:United Kingdom

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\0cb55adaebcd33b94fb00efcd1b927b2bc49a05e4ec4f9cc02bb70b3c5dfeb7c.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:1712

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\0cb55adaebcd33b94fb00efcd1b927b2bc49a05e4ec4f9cc02bb70b3c5dfeb7c.js

Filesize
830KB

MD5
3f2a1c1daacef7c9dc6f69c5362c9928

SHA1
3ce5d81226174c6c048313b9702fec63491eb339

SHA256
0cb55adaebcd33b94fb00efcd1b927b2bc49a05e4ec4f9cc02bb70b3c5dfeb7c

SHA512
d325873f1fd3bf4393ce60329451874b2a7543c5c3068fd0427030f761f20f9e8539fed72ff24155cfc6d7d609a997c1ceb91cc643a79732c0a2bf97c731eee9

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads