wshrat | 5f0329e51f347ca573ea69cd865bb03d0526d9e9e91477a4502a9fe35c3fbddf

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-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 25 IoCs

flow	pid	Process
27	832	WScript.exe
31	832	WScript.exe
38	832	WScript.exe
39	832	WScript.exe
44	832	WScript.exe
55	832	WScript.exe
57	832	WScript.exe
62	832	WScript.exe
72	832	WScript.exe
76	832	WScript.exe
80	832	WScript.exe
83	832	WScript.exe
84	832	WScript.exe
85	832	WScript.exe
86	832	WScript.exe
87	832	WScript.exe
88	832	WScript.exe
89	832	WScript.exe
90	832	WScript.exe
91	832	WScript.exe
92	832	WScript.exe
93	832	WScript.exe
94	832	WScript.exe
95	832	WScript.exe
96	832	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
Key created	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\software\microsoft\windows\currentversion\run	WScript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ORDER230322 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\ORDER230322.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\ORDER230322.vbs"
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:832

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\ORDER230322.vbs

Filesize
250KB

MD5
2a76503660d140d0aa08bd758cb9c29c

SHA1
55c1ba23321e11c0298450fb9dfa1ccebdea2d86

SHA256
5f0329e51f347ca573ea69cd865bb03d0526d9e9e91477a4502a9fe35c3fbddf

SHA512
f50da5213bf53b02199a2d3c5c8d06643315bd939b5047bfe44a904b8cb45be22793155f9055e9529c3ebd1861d14ae39528a9914e841ab3a91c6540c29b7390

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