wshrat | 5d3e88aef97b82e659730321469ba7cea252d82389999871927f218a0dd6ac26

Analysis

max time kernel
146s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
30-03-2023 07:36

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General

Target

Purcahse_Order_30032023.vbs
Size

271KB
MD5

f556c56f63b7ef7b55cc73e573dd5204
SHA1

6d3f5dc51b47777a14ce4b534c0f8749c2a13771
SHA256

5d3e88aef97b82e659730321469ba7cea252d82389999871927f218a0dd6ac26
SHA512

d2d04d07297d418dcd535c989869828b542d82bce82c20afdd064a59a9c3215127d316f394f2d92ffa2bc2bd8f0987840f3c3507d9aa8ab6e23d7f33a51eb758
SSDEEP

768:LqE2qlap4KjQwNCnw3CtD59yHs10wVR3wKwEBTH1dHFDE:qf

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	5072	WScript.exe
17	5072	WScript.exe
24	5072	WScript.exe
26	5072	WScript.exe
27	5072	WScript.exe
38	5072	WScript.exe
42	5072	WScript.exe
44	5072	WScript.exe
45	5072	WScript.exe
49	5072	WScript.exe
50	5072	WScript.exe
53	5072	WScript.exe
54	5072	WScript.exe
55	5072	WScript.exe
56	5072	WScript.exe
57	5072	WScript.exe
60	5072	WScript.exe
61	5072	WScript.exe
62	5072	WScript.exe
63	5072	WScript.exe
64	5072	WScript.exe
65	5072	WScript.exe
66	5072	WScript.exe
67	5072	WScript.exe
68	5072	WScript.exe
69	5072	WScript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Purcahse_Order_30032023.vbs	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Purcahse_Order_30032023.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\Purcahse_Order_30032023 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\Purcahse_Order_30032023.vbs\""	WScript.exe
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	WScript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Purcahse_Order_30032023 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\Purcahse_Order_30032023.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\Purcahse_Order_30032023.vbs"
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:5072

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

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Purcahse_Order_30032023.vbs

Filesize
271KB

MD5
f556c56f63b7ef7b55cc73e573dd5204

SHA1
6d3f5dc51b47777a14ce4b534c0f8749c2a13771

SHA256
5d3e88aef97b82e659730321469ba7cea252d82389999871927f218a0dd6ac26

SHA512
d2d04d07297d418dcd535c989869828b542d82bce82c20afdd064a59a9c3215127d316f394f2d92ffa2bc2bd8f0987840f3c3507d9aa8ab6e23d7f33a51eb758

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