wshrat | 036e0c2001c52903733dfd1fe241ab8e1ea2d0156d034ba0ab70d3efe0a887d5

General

Target

Scan0030.js
Size

898KB
MD5

b2b05e1631db082866c8f9d38cddf403
SHA1

3f19e69b66bf8c50993b55e5744818e3e92d4156
SHA256

c7805522f881cfa27c3cc92917f28da0f770d1e4ffe5aa170751058553da73ed
SHA512

7b7f6ab57bb555e07bd39e21e1470ea73c2dc4c1fa97bc1bbfb3361f8f2659d503a445a90e4125556a2ceba4236f83a077961340c435db0e070a91f6269d4c56
SSDEEP

6144:ROD297zg2plJPacQwE6hkpA0LysIfFk9jvCsYS9H17d9qFPNL6Z4MnJHI9Q6NCwU:+LP

Score

10^/10

wshrat persistence trojan

Malware Config

Extracted

Family

wshrat

C2

http://45.90.222.125:7121

Signatures

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

Blocklisted process makes network request 25 IoCs

flow	pid	Process
16	1172	wscript.exe
18	3200	wscript.exe
24	3200	wscript.exe
27	3200	wscript.exe
35	3200	wscript.exe
36	3200	wscript.exe
37	3200	wscript.exe
45	3200	wscript.exe
53	3200	wscript.exe
55	3200	wscript.exe
56	3200	wscript.exe
59	3200	wscript.exe
62	3200	wscript.exe
63	3200	wscript.exe
64	3200	wscript.exe
65	3200	wscript.exe
71	3200	wscript.exe
72	3200	wscript.exe
73	3200	wscript.exe
74	3200	wscript.exe
75	3200	wscript.exe
76	3200	wscript.exe
77	3200	wscript.exe
78	3200	wscript.exe
79	3200	wscript.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Scan0030.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Scan0030.js	wscript.exe

Adds Run key to start application 2 TTPs 8 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Scan0030 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\Scan0030.js\""	wscript.exe
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\Scan0030 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\Scan0030.js\""	wscript.exe
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Scan0030 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\Scan0030.js\""	wscript.exe
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\Scan0030 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\Scan0030.js\""	wscript.exe
Key created	\REGISTRY\MACHINE\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
23	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 22 IoCs

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

description	flow	ioc
HTTP User-Agent header	79	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 8/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	16	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	56	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 8/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	65	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 8/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	77	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 8/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	55	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 8/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	76	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 8/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	63	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 8/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	73	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 8/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	78	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 8/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	35	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 8/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	36	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 8/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	37	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 8/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	53	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 8/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	64	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 8/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	72	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 8/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	74	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 8/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	75	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 8/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	18	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	27	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 8/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	59	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 8/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	62	WSHRAT\|A0674C6B\|UXINIZSV\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 8/5/2023\|JavaScript-v3.4\|IN:India

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1172 wrote to memory of 3200	1172	wscript.exe	86
PID 1172 wrote to memory of 3200	1172	wscript.exe	86

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\Scan0030.js
1⤵
- Blocklisted process makes network request
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1172
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\Scan0030.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Adds Run key to start application
  PID:3200

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Scan0030.js

Filesize
898KB

MD5
b2b05e1631db082866c8f9d38cddf403

SHA1
3f19e69b66bf8c50993b55e5744818e3e92d4156

SHA256
c7805522f881cfa27c3cc92917f28da0f770d1e4ffe5aa170751058553da73ed

SHA512
7b7f6ab57bb555e07bd39e21e1470ea73c2dc4c1fa97bc1bbfb3361f8f2659d503a445a90e4125556a2ceba4236f83a077961340c435db0e070a91f6269d4c56

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Scan0030.js

Filesize
898KB

MD5
b2b05e1631db082866c8f9d38cddf403

SHA1
3f19e69b66bf8c50993b55e5744818e3e92d4156

SHA256
c7805522f881cfa27c3cc92917f28da0f770d1e4ffe5aa170751058553da73ed

SHA512
7b7f6ab57bb555e07bd39e21e1470ea73c2dc4c1fa97bc1bbfb3361f8f2659d503a445a90e4125556a2ceba4236f83a077961340c435db0e070a91f6269d4c56

Download Submit
C:\Users\Admin\AppData\Roaming\Scan0030.js

Filesize
898KB

MD5
b2b05e1631db082866c8f9d38cddf403

SHA1
3f19e69b66bf8c50993b55e5744818e3e92d4156

SHA256
c7805522f881cfa27c3cc92917f28da0f770d1e4ffe5aa170751058553da73ed

SHA512
7b7f6ab57bb555e07bd39e21e1470ea73c2dc4c1fa97bc1bbfb3361f8f2659d503a445a90e4125556a2ceba4236f83a077961340c435db0e070a91f6269d4c56

Download Submit

Analysis

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