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
behavioral2/files/0x0006000000023151-138.dat	family_wshrat

Blocklisted process makes network request 27 IoCs

flow	pid	Process
7	4652	wscript.exe
14	4652	wscript.exe
25	4652	wscript.exe
26	4652	wscript.exe
28	4652	wscript.exe
34	4652	wscript.exe
41	4652	wscript.exe
42	4652	wscript.exe
44	4652	wscript.exe
45	4652	wscript.exe
46	4652	wscript.exe
50	4652	wscript.exe
52	4652	wscript.exe
53	4652	wscript.exe
54	4652	wscript.exe
56	4652	wscript.exe
58	4652	wscript.exe
59	4652	wscript.exe
60	4652	wscript.exe
61	4652	wscript.exe
62	4652	wscript.exe
63	4652	wscript.exe
64	4652	wscript.exe
65	4652	wscript.exe
66	4652	wscript.exe
67	4652	wscript.exe
68	4652	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
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\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

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
6	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 26 IoCs

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

description	flow	ioc
HTTP User-Agent header	45	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	50	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	63	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	65	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	68	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	14	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	34	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	56	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	60	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	66	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	25	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	41	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	53	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	54	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	59	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	64	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	26	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	46	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	44	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	52	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	58	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	61	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	62	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	67	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	28	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 17/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	42	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|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:4652

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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