wshrat | 6e23d208c9821f239e6ad6c52018a201e0a53842c3885b0aa4017c01518bd247

Analysis

max time kernel
143s
max time network
149s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
27-03-2023 14:06

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General

Target

ORDER230327.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 19 IoCs

flow	pid	Process
4	2008	WScript.exe
5	2008	WScript.exe
6	2008	WScript.exe
9	2008	WScript.exe
10	2008	WScript.exe
11	2008	WScript.exe
13	2008	WScript.exe
14	2008	WScript.exe
15	2008	WScript.exe
17	2008	WScript.exe
18	2008	WScript.exe
19	2008	WScript.exe
21	2008	WScript.exe
22	2008	WScript.exe
23	2008	WScript.exe
25	2008	WScript.exe
26	2008	WScript.exe
27	2008	WScript.exe
29	2008	WScript.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ORDER230327.vbs	WScript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ORDER230327.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\MACHINE\software\microsoft\windows\currentversion\run	WScript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ORDER230327 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\ORDER230327.vbs\""	WScript.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\software\microsoft\windows\currentversion\run	WScript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\Software\Microsoft\Windows\CurrentVersion\Run\ORDER230327 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\ORDER230327.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\ORDER230327.vbs"
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:2008

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\ORDER230327.vbs

Filesize
255KB

MD5
82190aff405aa674adf49568649fe52b

SHA1
966d1fa684290305b77cebad19f70ebedee66f3e

SHA256
6e23d208c9821f239e6ad6c52018a201e0a53842c3885b0aa4017c01518bd247

SHA512
de9a038defd43e12df8ee0b53cae2632408fc79a67c9340213d1c2d71436b41acbdb6d1feb16ee96f769cf629ca8e89c289d406265bb3081614288aa9d879d8b

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