wshrat | b4420793217d8bd201ba7f61b863873c7ec1befa308d9eea52b90cb2cbc4d1a9

General

Target

b4420793217d8bd201ba7f61b863873c7ec1befa308d9eea52b90cb2cbc4d1a9.js
Size

616KB
MD5

146543805fbb1a73135ca00f2899118f
SHA1

f13878fd653431ab505ee248abe931880faab471
SHA256

b4420793217d8bd201ba7f61b863873c7ec1befa308d9eea52b90cb2cbc4d1a9
SHA512

efad864edb7dff50ef656481de3664f0752449ffc4b3c4cebc4fd5fe3b241c663c2948eb6c93c20e68b1ffd0a19061b8200c2a779bf55a6746827aa9b23a53a0
SSDEEP

12288:OYeIrWr/qRigAyX/kngXFbjTLvaH28nZH19Iimg0VtxWvTbxzOObcizI/mofdEM+:OYeIrWr/qRigAyX/kngXFbjTLvaH28n1

Score

10^/10

wshrat execution persistence trojan

Malware Config

Extracted

Family

wshrat

C2

http://masterokrwh.duckdns.org:8426

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
4	3024	wscript.exe
6	3024	wscript.exe
8	3024	wscript.exe
11	3024	wscript.exe
14	3024	wscript.exe
16	3024	wscript.exe
17	3024	wscript.exe
19	3024	wscript.exe
21	3024	wscript.exe
22	3024	wscript.exe
23	3024	wscript.exe
24	3024	wscript.exe
25	3024	wscript.exe
26	3024	wscript.exe
28	3024	wscript.exe
29	3024	wscript.exe
30	3024	wscript.exe
32	3024	wscript.exe
33	3024	wscript.exe
34	3024	wscript.exe
36	3024	wscript.exe
37	3024	wscript.exe
38	3024	wscript.exe
40	3024	wscript.exe
41	3024	wscript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b4420793217d8bd201ba7f61b863873c7ec1befa308d9eea52b90cb2cbc4d1a9.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b4420793217d8bd201ba7f61b863873c7ec1befa308d9eea52b90cb2cbc4d1a9.js	wscript.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\b4420793217d8bd201ba7f61b863873c7ec1befa308d9eea52b90cb2cbc4d1a9 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\b4420793217d8bd201ba7f61b863873c7ec1befa308d9eea52b90cb2cbc4d1a9.js\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b4420793217d8bd201ba7f61b863873c7ec1befa308d9eea52b90cb2cbc4d1a9 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\b4420793217d8bd201ba7f61b863873c7ec1befa308d9eea52b90cb2cbc4d1a9.js\""	wscript.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
15	pastebin.com
17	pastebin.com

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
18	ip-api.com

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies system certificate store 2 TTPs 4 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C\Blob = 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	wscript.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C\Blob = 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	wscript.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C	wscript.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C\Blob = 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	wscript.exe

Script User-Agent 19 IoCs

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

description	flow	ioc
HTTP User-Agent header	28	WSHRAT\|54781DE4\|SCFGBRBT\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 8/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	29	WSHRAT\|54781DE4\|SCFGBRBT\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 8/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	37	WSHRAT\|54781DE4\|SCFGBRBT\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 8/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	40	WSHRAT\|54781DE4\|SCFGBRBT\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 8/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	16	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	22	WSHRAT\|54781DE4\|SCFGBRBT\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 8/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	23	WSHRAT\|54781DE4\|SCFGBRBT\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 8/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	25	WSHRAT\|54781DE4\|SCFGBRBT\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 8/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	36	WSHRAT\|54781DE4\|SCFGBRBT\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 8/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	38	WSHRAT\|54781DE4\|SCFGBRBT\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 8/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	21	WSHRAT\|54781DE4\|SCFGBRBT\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 8/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	26	WSHRAT\|54781DE4\|SCFGBRBT\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 8/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	33	WSHRAT\|54781DE4\|SCFGBRBT\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 8/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	34	WSHRAT\|54781DE4\|SCFGBRBT\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 8/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	41	WSHRAT\|54781DE4\|SCFGBRBT\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 8/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	17	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	24	WSHRAT\|54781DE4\|SCFGBRBT\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 8/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	30	WSHRAT\|54781DE4\|SCFGBRBT\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 8/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	32	WSHRAT\|54781DE4\|SCFGBRBT\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 8/5/2024\|JavaScript-v3.4\|GB:United Kingdom

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\b4420793217d8bd201ba7f61b863873c7ec1befa308d9eea52b90cb2cbc4d1a9.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Modifies system certificate store
PID:3024

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

JavaScript

1

T1059.007

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

2

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
68KB

MD5
29f65ba8e88c063813cc50a4ea544e93

SHA1
05a7040d5c127e68c25d81cc51271ffb8bef3568

SHA256
1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

SHA512
e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b4420793217d8bd201ba7f61b863873c7ec1befa308d9eea52b90cb2cbc4d1a9.js

Filesize
616KB

MD5
146543805fbb1a73135ca00f2899118f

SHA1
f13878fd653431ab505ee248abe931880faab471

SHA256
b4420793217d8bd201ba7f61b863873c7ec1befa308d9eea52b90cb2cbc4d1a9

SHA512
efad864edb7dff50ef656481de3664f0752449ffc4b3c4cebc4fd5fe3b241c663c2948eb6c93c20e68b1ffd0a19061b8200c2a779bf55a6746827aa9b23a53a0

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads