wshrat | 58c8683c12b881750b510dc3b5577a7bb0ae2f598fa3ab5929bb4f6d20abdc03

Analysis

max time kernel
147s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
29-03-2023 01:25

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General

Target

6e23d208c9821f239e6ad6c52018a201e0a53842c3885b0aa4017c01518bd247.vbs
Size

255KB
MD5

82190aff405aa674adf49568649fe52b
SHA1

966d1fa684290305b77cebad19f70ebedee66f3e
SHA256

6e23d208c9821f239e6ad6c52018a201e0a53842c3885b0aa4017c01518bd247
SHA512

de9a038defd43e12df8ee0b53cae2632408fc79a67c9340213d1c2d71436b41acbdb6d1feb16ee96f769cf629ca8e89c289d406265bb3081614288aa9d879d8b
SSDEEP

768:9+i+03whqCx8CG5CsJRxhcxSLeK5BpmamOD5Z3rxRQ:+j

Score

10^/10

wshrat persistence trojan

Malware Config

Extracted

Family

wshrat

http://chongmei33.publicvm.com:7045

Signatures

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

Blocklisted process makes network request 26 IoCs

flow	pid	Process
15	1744	WScript.exe
17	1744	WScript.exe
24	1744	WScript.exe
25	1744	WScript.exe
27	1744	WScript.exe
34	1744	WScript.exe
35	1744	WScript.exe
36	1744	WScript.exe
39	1744	WScript.exe
44	1744	WScript.exe
47	1744	WScript.exe
48	1744	WScript.exe
52	1744	WScript.exe
53	1744	WScript.exe
54	1744	WScript.exe
56	1744	WScript.exe
59	1744	WScript.exe
60	1744	WScript.exe
61	1744	WScript.exe
62	1744	WScript.exe
63	1744	WScript.exe
64	1744	WScript.exe
65	1744	WScript.exe
66	1744	WScript.exe
67	1744	WScript.exe
68	1744	WScript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6e23d208c9821f239e6ad6c52018a201e0a53842c3885b0aa4017c01518bd247.vbs	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6e23d208c9821f239e6ad6c52018a201e0a53842c3885b0aa4017c01518bd247.vbs	WScript.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\software\microsoft\windows\currentversion\run	WScript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\6e23d208c9821f239e6ad6c52018a201e0a53842c3885b0aa4017c01518bd247 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\6e23d208c9821f239e6ad6c52018a201e0a53842c3885b0aa4017c01518bd247.vbs\""	WScript.exe
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	WScript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\6e23d208c9821f239e6ad6c52018a201e0a53842c3885b0aa4017c01518bd247 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\6e23d208c9821f239e6ad6c52018a201e0a53842c3885b0aa4017c01518bd247.vbs\""	WScript.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\6e23d208c9821f239e6ad6c52018a201e0a53842c3885b0aa4017c01518bd247.vbs"
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:1744

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

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\6e23d208c9821f239e6ad6c52018a201e0a53842c3885b0aa4017c01518bd247.vbs

Filesize
255KB

MD5
82190aff405aa674adf49568649fe52b

SHA1
966d1fa684290305b77cebad19f70ebedee66f3e

SHA256
6e23d208c9821f239e6ad6c52018a201e0a53842c3885b0aa4017c01518bd247

SHA512
de9a038defd43e12df8ee0b53cae2632408fc79a67c9340213d1c2d71436b41acbdb6d1feb16ee96f769cf629ca8e89c289d406265bb3081614288aa9d879d8b

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