wshrat | ac6fc6a98a2a3944477156cab221166f6ee535d1a9d91c66171914091af24d34

General

Target

shipment docs.js
Size

188KB
MD5

f1a629154f159093b39b5f24c2413e5f
SHA1

1036b4213b6ca79a86e00fc5b752fba43e3e6ad6
SHA256

ac6fc6a98a2a3944477156cab221166f6ee535d1a9d91c66171914091af24d34
SHA512

180b7f8b8c27cf089788d2567eec7259799f0ee4abf141e82a6036708fd3c94d50870f3345bc7997af5c54eea7a7f994e61015db6ad50030dc3c95f17ee4bab6
SSDEEP

3072:9t+ZIeGK/6kbIpklgVDSxGfmuZcUZTbURC9qQ0bamCc8ovEztk:9wueGKlAklgF2GuuZcZRCfMAc84X

Score

10^/10

wshrat persistence trojan

Malware Config

Extracted

Family

wshrat

C2

http://wshh.ourhobby.com:2084

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/0x000b0000000122dc-59.dat	family_wshrat

Blocklisted process makes network request 25 IoCs

flow	pid	Process
4	856	wscript.exe
6	856	wscript.exe
7	856	wscript.exe
8	856	wscript.exe
10	856	wscript.exe
11	856	wscript.exe
13	856	wscript.exe
15	856	wscript.exe
16	856	wscript.exe
17	856	wscript.exe
19	856	wscript.exe
20	856	wscript.exe
21	856	wscript.exe
23	856	wscript.exe
24	856	wscript.exe
25	856	wscript.exe
27	856	wscript.exe
28	856	wscript.exe
29	856	wscript.exe
31	856	wscript.exe
32	856	wscript.exe
33	856	wscript.exe
35	856	wscript.exe
36	856	wscript.exe
37	856	wscript.exe

Drops startup file 2 IoCs

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

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Windows\CurrentVersion\Run\shipment docs = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\shipment docs.js\""	wscript.exe
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\shipment docs = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\shipment docs.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\software\microsoft\windows\currentversion\run	wscript.exe

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
3	ip-api.com

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	23	WSHRAT\|F4C6D0E0\|WFSTZEPN\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	27	WSHRAT\|F4C6D0E0\|WFSTZEPN\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	33	WSHRAT\|F4C6D0E0\|WFSTZEPN\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	6	WSHRAT\|F4C6D0E0\|WFSTZEPN\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	8	WSHRAT\|F4C6D0E0\|WFSTZEPN\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	20	WSHRAT\|F4C6D0E0\|WFSTZEPN\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	21	WSHRAT\|F4C6D0E0\|WFSTZEPN\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	31	WSHRAT\|F4C6D0E0\|WFSTZEPN\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	13	WSHRAT\|F4C6D0E0\|WFSTZEPN\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	15	WSHRAT\|F4C6D0E0\|WFSTZEPN\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	19	WSHRAT\|F4C6D0E0\|WFSTZEPN\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	7	WSHRAT\|F4C6D0E0\|WFSTZEPN\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	24	WSHRAT\|F4C6D0E0\|WFSTZEPN\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	37	WSHRAT\|F4C6D0E0\|WFSTZEPN\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	17	WSHRAT\|F4C6D0E0\|WFSTZEPN\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	25	WSHRAT\|F4C6D0E0\|WFSTZEPN\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	28	WSHRAT\|F4C6D0E0\|WFSTZEPN\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	29	WSHRAT\|F4C6D0E0\|WFSTZEPN\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	32	WSHRAT\|F4C6D0E0\|WFSTZEPN\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	10	WSHRAT\|F4C6D0E0\|WFSTZEPN\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	11	WSHRAT\|F4C6D0E0\|WFSTZEPN\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	16	WSHRAT\|F4C6D0E0\|WFSTZEPN\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	35	WSHRAT\|F4C6D0E0\|WFSTZEPN\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	36	WSHRAT\|F4C6D0E0\|WFSTZEPN\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India

C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\shipment docs.js"
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:856

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\shipment docs.js

Filesize
188KB

MD5
f1a629154f159093b39b5f24c2413e5f

SHA1
1036b4213b6ca79a86e00fc5b752fba43e3e6ad6

SHA256
ac6fc6a98a2a3944477156cab221166f6ee535d1a9d91c66171914091af24d34

SHA512
180b7f8b8c27cf089788d2567eec7259799f0ee4abf141e82a6036708fd3c94d50870f3345bc7997af5c54eea7a7f994e61015db6ad50030dc3c95f17ee4bab6

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