wshrat | 645074638e8c896237a2340918cb99558103c717bbcb20a483651e6e242c5808

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230831-en
resource tags

arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
submitted
13/09/2023, 13:25

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General

Target

645074638e8c896237a2340918cb99558103c717bbcb20a483651e6e242c5808_JC.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
13	2944	wscript.exe
37	2944	wscript.exe
38	2944	wscript.exe
48	2944	wscript.exe
49	2944	wscript.exe
50	2944	wscript.exe
60	2944	wscript.exe
65	2944	wscript.exe
66	2944	wscript.exe
67	2944	wscript.exe
68	2944	wscript.exe
69	2944	wscript.exe
70	2944	wscript.exe
71	2944	wscript.exe
72	2944	wscript.exe
73	2944	wscript.exe
74	2944	wscript.exe
75	2944	wscript.exe
76	2944	wscript.exe
77	2944	wscript.exe
78	2944	wscript.exe
79	2944	wscript.exe
80	2944	wscript.exe
81	2944	wscript.exe
82	2944	wscript.exe
83	2944	wscript.exe
84	2944	wscript.exe
85	2944	wscript.exe
89	2944	wscript.exe
90	2944	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\645074638e8c896237a2340918cb99558103c717bbcb20a483651e6e242c5808_JC.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\645074638e8c896237a2340918cb99558103c717bbcb20a483651e6e242c5808_JC.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\USER\S-1-5-21-528036852-1341495193-1175965888-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\645074638e8c896237a2340918cb99558103c717bbcb20a483651e6e242c5808_JC = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\645074638e8c896237a2340918cb99558103c717bbcb20a483651e6e242c5808_JC.js\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\645074638e8c896237a2340918cb99558103c717bbcb20a483651e6e242c5808_JC = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\645074638e8c896237a2340918cb99558103c717bbcb20a483651e6e242c5808_JC.js\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\645074638e8c896237a2340918cb99558103c717bbcb20a483651e6e242c5808_JC = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\645074638e8c896237a2340918cb99558103c717bbcb20a483651e6e242c5808_JC.js\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\645074638e8c896237a2340918cb99558103c717bbcb20a483651e6e242c5808_JC = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\645074638e8c896237a2340918cb99558103c717bbcb20a483651e6e242c5808_JC.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	84	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 13/9/2023\|JavaScript
HTTP User-Agent header	67	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 13/9/2023\|JavaScript
HTTP User-Agent header	73	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 13/9/2023\|JavaScript
HTTP User-Agent header	66	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 13/9/2023\|JavaScript
HTTP User-Agent header	75	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 13/9/2023\|JavaScript
HTTP User-Agent header	89	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 13/9/2023\|JavaScript
HTTP User-Agent header	48	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 13/9/2023\|JavaScript
HTTP User-Agent header	49	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 13/9/2023\|JavaScript
HTTP User-Agent header	78	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 13/9/2023\|JavaScript
HTTP User-Agent header	80	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 13/9/2023\|JavaScript
HTTP User-Agent header	81	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 13/9/2023\|JavaScript
HTTP User-Agent header	38	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 13/9/2023\|JavaScript
HTTP User-Agent header	70	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 13/9/2023\|JavaScript
HTTP User-Agent header	83	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 13/9/2023\|JavaScript
HTTP User-Agent header	37	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 13/9/2023\|JavaScript
HTTP User-Agent header	74	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 13/9/2023\|JavaScript
HTTP User-Agent header	76	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 13/9/2023\|JavaScript
HTTP User-Agent header	85	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 13/9/2023\|JavaScript
HTTP User-Agent header	90	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 13/9/2023\|JavaScript
HTTP User-Agent header	50	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 13/9/2023\|JavaScript
HTTP User-Agent header	72	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 13/9/2023\|JavaScript
HTTP User-Agent header	68	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 13/9/2023\|JavaScript
HTTP User-Agent header	71	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 13/9/2023\|JavaScript
HTTP User-Agent header	77	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 13/9/2023\|JavaScript
HTTP User-Agent header	79	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 13/9/2023\|JavaScript
HTTP User-Agent header	13	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 13/9/2023\|JavaScript
HTTP User-Agent header	65	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 13/9/2023\|JavaScript
HTTP User-Agent header	82	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 13/9/2023\|JavaScript
HTTP User-Agent header	60	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 13/9/2023\|JavaScript
HTTP User-Agent header	69	WSHRAT\|8466D814\|VNIYNTNL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 13/9/2023\|JavaScript

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3768 wrote to memory of 2944	3768	wscript.exe	87
PID 3768 wrote to memory of 2944	3768	wscript.exe	87

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\645074638e8c896237a2340918cb99558103c717bbcb20a483651e6e242c5808_JC.js
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3768
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\645074638e8c896237a2340918cb99558103c717bbcb20a483651e6e242c5808_JC.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Adds Run key to start application
  PID:2944

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\645074638e8c896237a2340918cb99558103c717bbcb20a483651e6e242c5808_JC.js

Filesize
21KB

MD5
c8f19fa9f346f7409e3bba98c1e3f058

SHA1
d857192d59c0ce2196925ce59436e0e36d94b6ee

SHA256
645074638e8c896237a2340918cb99558103c717bbcb20a483651e6e242c5808

SHA512
cf214cd1c41ee8b42e1f1ea55d61802a1f35d89626406e02bed1874dfae15ccd24629c7ec2bf0686131691fdd8efefd4d91833afad6c3976fb908c69c4f2f326

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\645074638e8c896237a2340918cb99558103c717bbcb20a483651e6e242c5808_JC.js

Filesize
21KB

MD5
c8f19fa9f346f7409e3bba98c1e3f058

SHA1
d857192d59c0ce2196925ce59436e0e36d94b6ee

SHA256
645074638e8c896237a2340918cb99558103c717bbcb20a483651e6e242c5808

SHA512
cf214cd1c41ee8b42e1f1ea55d61802a1f35d89626406e02bed1874dfae15ccd24629c7ec2bf0686131691fdd8efefd4d91833afad6c3976fb908c69c4f2f326

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\645074638e8c896237a2340918cb99558103c717bbcb20a483651e6e242c5808_JC.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