wshrat | fe8e63adaeb3294714f63a312638ef93044da81414b25e4b3de46bdfb6bc92c2

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20230831-en
resource tags

arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
submitted
14-09-2023 23:33

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General

Target

dropbosforSoftBank.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

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 30 IoCs

flow	pid	Process
18	3068	wscript.exe
40	3068	wscript.exe
47	3068	wscript.exe
48	3068	wscript.exe
49	3068	wscript.exe
50	3068	wscript.exe
62	3068	wscript.exe
69	3068	wscript.exe
76	3068	wscript.exe
77	3068	wscript.exe
78	3068	wscript.exe
79	3068	wscript.exe
83	3068	wscript.exe
86	3068	wscript.exe
87	3068	wscript.exe
88	3068	wscript.exe
89	3068	wscript.exe
93	3068	wscript.exe
94	3068	wscript.exe
95	3068	wscript.exe
96	3068	wscript.exe
97	3068	wscript.exe
98	3068	wscript.exe
99	3068	wscript.exe
100	3068	wscript.exe
101	3068	wscript.exe
102	3068	wscript.exe
103	3068	wscript.exe
108	3068	wscript.exe
109	3068	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-1-5-21-4078585466-1563564224-3678410669-1000\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\dropbosforSoftBank.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\dropbosforSoftBank.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\dropbosforSoftBank = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\dropbosforSoftBank.js\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dropbosforSoftBank = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\dropbosforSoftBank.js\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dropbosforSoftBank = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\dropbosforSoftBank.js\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dropbosforSoftBank = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\dropbosforSoftBank.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 30 IoCs

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

description	flow	ioc
HTTP User-Agent header	83	WSHRAT\|AA342AE5\|NVYNMMTR\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 14/9/2023\|JavaScript
HTTP User-Agent header	96	WSHRAT\|AA342AE5\|NVYNMMTR\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 14/9/2023\|JavaScript
HTTP User-Agent header	109	WSHRAT\|AA342AE5\|NVYNMMTR\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 14/9/2023\|JavaScript
HTTP User-Agent header	97	WSHRAT\|AA342AE5\|NVYNMMTR\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 14/9/2023\|JavaScript
HTTP User-Agent header	62	WSHRAT\|AA342AE5\|NVYNMMTR\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 14/9/2023\|JavaScript
HTTP User-Agent header	95	WSHRAT\|AA342AE5\|NVYNMMTR\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 14/9/2023\|JavaScript
HTTP User-Agent header	100	WSHRAT\|AA342AE5\|NVYNMMTR\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 14/9/2023\|JavaScript
HTTP User-Agent header	48	WSHRAT\|AA342AE5\|NVYNMMTR\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 14/9/2023\|JavaScript
HTTP User-Agent header	69	WSHRAT\|AA342AE5\|NVYNMMTR\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 14/9/2023\|JavaScript
HTTP User-Agent header	89	WSHRAT\|AA342AE5\|NVYNMMTR\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 14/9/2023\|JavaScript
HTTP User-Agent header	93	WSHRAT\|AA342AE5\|NVYNMMTR\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 14/9/2023\|JavaScript
HTTP User-Agent header	99	WSHRAT\|AA342AE5\|NVYNMMTR\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 14/9/2023\|JavaScript
HTTP User-Agent header	101	WSHRAT\|AA342AE5\|NVYNMMTR\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 14/9/2023\|JavaScript
HTTP User-Agent header	108	WSHRAT\|AA342AE5\|NVYNMMTR\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 14/9/2023\|JavaScript
HTTP User-Agent header	47	WSHRAT\|AA342AE5\|NVYNMMTR\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 14/9/2023\|JavaScript
HTTP User-Agent header	77	WSHRAT\|AA342AE5\|NVYNMMTR\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 14/9/2023\|JavaScript
HTTP User-Agent header	78	WSHRAT\|AA342AE5\|NVYNMMTR\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 14/9/2023\|JavaScript
HTTP User-Agent header	86	WSHRAT\|AA342AE5\|NVYNMMTR\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 14/9/2023\|JavaScript
HTTP User-Agent header	94	WSHRAT\|AA342AE5\|NVYNMMTR\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 14/9/2023\|JavaScript
HTTP User-Agent header	98	WSHRAT\|AA342AE5\|NVYNMMTR\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 14/9/2023\|JavaScript
HTTP User-Agent header	40	WSHRAT\|AA342AE5\|NVYNMMTR\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 14/9/2023\|JavaScript
HTTP User-Agent header	79	WSHRAT\|AA342AE5\|NVYNMMTR\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 14/9/2023\|JavaScript
HTTP User-Agent header	88	WSHRAT\|AA342AE5\|NVYNMMTR\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 14/9/2023\|JavaScript
HTTP User-Agent header	18	WSHRAT\|AA342AE5\|NVYNMMTR\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 14/9/2023\|JavaScript
HTTP User-Agent header	49	WSHRAT\|AA342AE5\|NVYNMMTR\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 14/9/2023\|JavaScript
HTTP User-Agent header	76	WSHRAT\|AA342AE5\|NVYNMMTR\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 14/9/2023\|JavaScript
HTTP User-Agent header	87	WSHRAT\|AA342AE5\|NVYNMMTR\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 14/9/2023\|JavaScript
HTTP User-Agent header	103	WSHRAT\|AA342AE5\|NVYNMMTR\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 14/9/2023\|JavaScript
HTTP User-Agent header	50	WSHRAT\|AA342AE5\|NVYNMMTR\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 14/9/2023\|JavaScript
HTTP User-Agent header	102	WSHRAT\|AA342AE5\|NVYNMMTR\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 14/9/2023\|JavaScript

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 744 wrote to memory of 3068	744	wscript.exe	85
PID 744 wrote to memory of 3068	744	wscript.exe	85

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\dropbosforSoftBank.js
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:744
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\dropbosforSoftBank.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Adds Run key to start application
  PID:3068

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

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\dropbosforSoftBank.js

Filesize
21KB

MD5
c8f19fa9f346f7409e3bba98c1e3f058

SHA1
d857192d59c0ce2196925ce59436e0e36d94b6ee

SHA256
645074638e8c896237a2340918cb99558103c717bbcb20a483651e6e242c5808

SHA512
cf214cd1c41ee8b42e1f1ea55d61802a1f35d89626406e02bed1874dfae15ccd24629c7ec2bf0686131691fdd8efefd4d91833afad6c3976fb908c69c4f2f326

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

Filesize
21KB

MD5
c8f19fa9f346f7409e3bba98c1e3f058

SHA1
d857192d59c0ce2196925ce59436e0e36d94b6ee

SHA256
645074638e8c896237a2340918cb99558103c717bbcb20a483651e6e242c5808

SHA512
cf214cd1c41ee8b42e1f1ea55d61802a1f35d89626406e02bed1874dfae15ccd24629c7ec2bf0686131691fdd8efefd4d91833afad6c3976fb908c69c4f2f326

Download Submit
C:\Users\Admin\AppData\Roaming\dropbosforSoftBank.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