wshrat | 645074638e8c896237a2340918cb99558103c717bbcb20a483651e6e242c5808

General

Target

SoftbankNDA.js
Size

21KB
MD5

c8f19fa9f346f7409e3bba98c1e3f058
SHA1

d857192d59c0ce2196925ce59436e0e36d94b6ee
SHA256

645074638e8c896237a2340918cb99558103c717bbcb20a483651e6e242c5808
SHA512

cf214cd1c41ee8b42e1f1ea55d61802a1f35d89626406e02bed1874dfae15ccd24629c7ec2bf0686131691fdd8efefd4d91833afad6c3976fb908c69c4f2f326
SSDEEP

384:n/+tc8v+YhrKZKZXeX5U7CP9fD0eX5GrnB63vQOaSDsvkysjqFJ8TatW8TaUxTam:n/+tbv+YhdZXeXic9fD0eXknB6Y6Dsv7

Score

10^/10

wshrat persistence trojan

Malware Config

Extracted

Family

wshrat

C2

http://homesafe1000.duckdns.org:1604

Signatures

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

Blocklisted process makes network request 29 IoCs

flow	pid	Process
12	4468	wscript.exe
39	4468	wscript.exe
40	4468	wscript.exe
51	4468	wscript.exe
52	4468	wscript.exe
53	4468	wscript.exe
64	4468	wscript.exe
68	4468	wscript.exe
69	4468	wscript.exe
70	4468	wscript.exe
71	4468	wscript.exe
72	4468	wscript.exe
73	4468	wscript.exe
74	4468	wscript.exe
75	4468	wscript.exe
76	4468	wscript.exe
77	4468	wscript.exe
78	4468	wscript.exe
79	4468	wscript.exe
80	4468	wscript.exe
81	4468	wscript.exe
82	4468	wscript.exe
83	4468	wscript.exe
84	4468	wscript.exe
85	4468	wscript.exe
86	4468	wscript.exe
87	4468	wscript.exe
90	4468	wscript.exe
92	4468	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-1-5-21-528036852-1341495193-1175965888-1000\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\SoftbankNDA.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SoftbankNDA.js	wscript.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SoftbankNDA = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\SoftbankNDA.js\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SoftbankNDA = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\SoftbankNDA.js\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SoftbankNDA = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\SoftbankNDA.js\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SoftbankNDA = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\SoftbankNDA.js\""	wscript.exe

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	90	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 12/9/2023\|JavaScript
HTTP User-Agent header	40	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 12/9/2023\|JavaScript
HTTP User-Agent header	53	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 12/9/2023\|JavaScript
HTTP User-Agent header	78	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 12/9/2023\|JavaScript
HTTP User-Agent header	79	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 12/9/2023\|JavaScript
HTTP User-Agent header	86	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 12/9/2023\|JavaScript
HTTP User-Agent header	52	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 12/9/2023\|JavaScript
HTTP User-Agent header	72	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 12/9/2023\|JavaScript
HTTP User-Agent header	73	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 12/9/2023\|JavaScript
HTTP User-Agent header	75	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 12/9/2023\|JavaScript
HTTP User-Agent header	81	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 12/9/2023\|JavaScript
HTTP User-Agent header	12	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 12/9/2023\|JavaScript
HTTP User-Agent header	70	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 12/9/2023\|JavaScript
HTTP User-Agent header	39	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 12/9/2023\|JavaScript
HTTP User-Agent header	84	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 12/9/2023\|JavaScript
HTTP User-Agent header	74	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 12/9/2023\|JavaScript
HTTP User-Agent header	77	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 12/9/2023\|JavaScript
HTTP User-Agent header	83	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 12/9/2023\|JavaScript
HTTP User-Agent header	68	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 12/9/2023\|JavaScript
HTTP User-Agent header	71	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 12/9/2023\|JavaScript
HTTP User-Agent header	82	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 12/9/2023\|JavaScript
HTTP User-Agent header	80	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 12/9/2023\|JavaScript
HTTP User-Agent header	85	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 12/9/2023\|JavaScript
HTTP User-Agent header	87	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 12/9/2023\|JavaScript
HTTP User-Agent header	92	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 12/9/2023\|JavaScript
HTTP User-Agent header	51	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 12/9/2023\|JavaScript
HTTP User-Agent header	76	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 12/9/2023\|JavaScript
HTTP User-Agent header	64	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 12/9/2023\|JavaScript
HTTP User-Agent header	69	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 12/9/2023\|JavaScript

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 5032 wrote to memory of 4468	5032	wscript.exe	87
PID 5032 wrote to memory of 4468	5032	wscript.exe	87

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\SoftbankNDA.js
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:5032
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\SoftbankNDA.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Adds Run key to start application
  PID:4468

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

Query Registry

1

T1012

System Information Discovery

2

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\SoftbankNDA.js

Filesize
21KB

MD5
c8f19fa9f346f7409e3bba98c1e3f058

SHA1
d857192d59c0ce2196925ce59436e0e36d94b6ee

SHA256
645074638e8c896237a2340918cb99558103c717bbcb20a483651e6e242c5808

SHA512
cf214cd1c41ee8b42e1f1ea55d61802a1f35d89626406e02bed1874dfae15ccd24629c7ec2bf0686131691fdd8efefd4d91833afad6c3976fb908c69c4f2f326

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

Filesize
21KB

MD5
c8f19fa9f346f7409e3bba98c1e3f058

SHA1
d857192d59c0ce2196925ce59436e0e36d94b6ee

SHA256
645074638e8c896237a2340918cb99558103c717bbcb20a483651e6e242c5808

SHA512
cf214cd1c41ee8b42e1f1ea55d61802a1f35d89626406e02bed1874dfae15ccd24629c7ec2bf0686131691fdd8efefd4d91833afad6c3976fb908c69c4f2f326

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

Filesize
21KB

MD5
c8f19fa9f346f7409e3bba98c1e3f058

SHA1
d857192d59c0ce2196925ce59436e0e36d94b6ee

SHA256
645074638e8c896237a2340918cb99558103c717bbcb20a483651e6e242c5808

SHA512
cf214cd1c41ee8b42e1f1ea55d61802a1f35d89626406e02bed1874dfae15ccd24629c7ec2bf0686131691fdd8efefd4d91833afad6c3976fb908c69c4f2f326

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads