wshrat | 5f0329e51f347ca573ea69cd865bb03d0526d9e9e91477a4502a9fe35c3fbddf

Analysis

max time kernel
145s
max time network
150s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
22-03-2023 08:20

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General

Target

ORDER230322.vbs
Size

250KB
MD5

2a76503660d140d0aa08bd758cb9c29c
SHA1

55c1ba23321e11c0298450fb9dfa1ccebdea2d86
SHA256

5f0329e51f347ca573ea69cd865bb03d0526d9e9e91477a4502a9fe35c3fbddf
SHA512

f50da5213bf53b02199a2d3c5c8d06643315bd939b5047bfe44a904b8cb45be22793155f9055e9529c3ebd1861d14ae39528a9914e841ab3a91c6540c29b7390
SSDEEP

768:19C8cPTeUGV5V4ky1rHHPskYROOowLXMJuzHHMH+HCo/LiGi2tl33xRXC:yR

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 22 IoCs

flow	pid	Process
4	1736	WScript.exe
5	1736	WScript.exe
6	1736	WScript.exe
9	1736	WScript.exe
10	1736	WScript.exe
11	1736	WScript.exe
13	1736	WScript.exe
14	1736	WScript.exe
15	1736	WScript.exe
17	1736	WScript.exe
18	1736	WScript.exe
19	1736	WScript.exe
21	1736	WScript.exe
22	1736	WScript.exe
23	1736	WScript.exe
25	1736	WScript.exe
26	1736	WScript.exe
27	1736	WScript.exe
29	1736	WScript.exe
30	1736	WScript.exe
31	1736	WScript.exe
33	1736	WScript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ORDER230322.vbs	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ORDER230322.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\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ORDER230322 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\ORDER230322.vbs\""	WScript.exe
Key created	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\software\microsoft\windows\currentversion\run	WScript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Windows\CurrentVersion\Run\ORDER230322 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\ORDER230322.vbs\""	WScript.exe
Key created	\REGISTRY\MACHINE\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\ORDER230322.vbs"
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:1736

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\ORDER230322.vbs

Filesize
250KB

MD5
2a76503660d140d0aa08bd758cb9c29c

SHA1
55c1ba23321e11c0298450fb9dfa1ccebdea2d86

SHA256
5f0329e51f347ca573ea69cd865bb03d0526d9e9e91477a4502a9fe35c3fbddf

SHA512
f50da5213bf53b02199a2d3c5c8d06643315bd939b5047bfe44a904b8cb45be22793155f9055e9529c3ebd1861d14ae39528a9914e841ab3a91c6540c29b7390

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