wshrat | 51fe490b18d7e136824a8eac22f4812e248b43cfa7eb9d594eee5ba8873c186c

Analysis

max time kernel
145s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
11/04/2023, 01:43

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General

Target
01313c486b99a572a9dbcbc3e01d414f11624d4e9b813a825f962b5ce66fcf64.vbs
Size 230KB
Sample230411-b5nxlabd4v
SHA256 01313c486b99a572a9dbcbc3e01d414f11624d4e9b813a825f962b5ce66fcf64
MD5 dfaa0731635b4e0867fb1a5b00f97cd4
SHA1 0c0723a3447aa571afb33db576421a4af2dc8b86
SHA512 093af630e4ef2ad24ebfc088af53e5f6b6c9c88f51b6075aace72d9ce4a1de89d6825ace40eb23d7ae6c22900d1e6db04aee1544be4a701ed0c3980109fb326c
SSDEEP 768:HxeMsGDC5m7QRcs7Gbs9GNjfN4Jxw9qOlFOeO2rlznJfjc:2J
MD5 SHA1 SHA512 SSDEEP

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 25 IoCs

flow	pid	Process
15	2128	WScript.exe
17	2128	WScript.exe
24	2128	WScript.exe
25	2128	WScript.exe
27	2128	WScript.exe
38	2128	WScript.exe
40	2128	WScript.exe
41	2128	WScript.exe
42	2128	WScript.exe
46	2128	WScript.exe
50	2128	WScript.exe
51	2128	WScript.exe
52	2128	WScript.exe
53	2128	WScript.exe
54	2128	WScript.exe
57	2128	WScript.exe
58	2128	WScript.exe
59	2128	WScript.exe
60	2128	WScript.exe
61	2128	WScript.exe
62	2128	WScript.exe
63	2128	WScript.exe
64	2128	WScript.exe
65	2128	WScript.exe
66	2128	WScript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\01313c486b99a572a9dbcbc3e01d414f11624d4e9b813a825f962b5ce66fcf64.vbs	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\01313c486b99a572a9dbcbc3e01d414f11624d4e9b813a825f962b5ce66fcf64.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
Set value (str)	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\01313c486b99a572a9dbcbc3e01d414f11624d4e9b813a825f962b5ce66fcf64 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\01313c486b99a572a9dbcbc3e01d414f11624d4e9b813a825f962b5ce66fcf64.vbs\""	WScript.exe
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	WScript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\01313c486b99a572a9dbcbc3e01d414f11624d4e9b813a825f962b5ce66fcf64 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\01313c486b99a572a9dbcbc3e01d414f11624d4e9b813a825f962b5ce66fcf64.vbs\""	WScript.exe
Key created	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\software\microsoft\windows\currentversion\run	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\01313c486b99a572a9dbcbc3e01d414f11624d4e9b813a825f962b5ce66fcf64.vbs"
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:2128

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

01313c486b99a572a9dbcbc3e01d414f11624d4e9b813a825f962b5ce66fcf64.vbs

Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\01313c486b99a572a9dbcbc3e01d414f11624d4e9b813a825f962b5ce66fcf64.vbs
Size 230KB
SHA256 01313c486b99a572a9dbcbc3e01d414f11624d4e9b813a825f962b5ce66fcf64
MD5 dfaa0731635b4e0867fb1a5b00f97cd4
SHA1 0c0723a3447aa571afb33db576421a4af2dc8b86
SHA512 093af630e4ef2ad24ebfc088af53e5f6b6c9c88f51b6075aace72d9ce4a1de89d6825ace40eb23d7ae6c22900d1e6db04aee1544be4a701ed0c3980109fb326c
SSDEEP 768:HxeMsGDC5m7QRcs7Gbs9GNjfN4Jxw9qOlFOeO2rlznJfjc:2J
MD5 SHA1 SHA512 SSDEEP

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