wshrat | d195a4460cbf030a568e980c5b07e7f33cb2f0d5b2f9634b1ca71ad43fafa8d6

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
04/11/2022, 07:48

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General

Target

payment.js
Size

24KB
MD5

b3d68dd5492fa261df75900cc205205f
SHA1

6b1ccb0ea2ad7f59ad4feff99f7c9f53218ac64d
SHA256

d195a4460cbf030a568e980c5b07e7f33cb2f0d5b2f9634b1ca71ad43fafa8d6
SHA512

42695f2c81e09343dd8fb94c5a5a82235bc587c70f8ea0bfd4c4490cf5d38e57243f1c641cd72180c5d036fefb8454b651bec6931b86b7d15304bb10043931a0
SSDEEP

768:EIs214ugj9ZBAADEhsmaaqv8yZ/pzT84OFAjBM4b7:7sZ

Score

10^/10

wshrat persistence trojan

Malware Config

Extracted

Family

wshrat

http://212.193.30.230:7780

Signatures

WSHRAT
WSHRAT is a variant of Houdini worm and has vbs and js variants.
trojan wshrat

Blocklisted process makes network request 9 IoCs

flow	pid	Process
3	1872	wscript.exe
4	1872	wscript.exe
6	1872	wscript.exe
7	1872	wscript.exe
8	1872	wscript.exe
10	1872	wscript.exe
11	1872	wscript.exe
12	1872	wscript.exe
13	1872	wscript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\payment.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\payment.js	wscript.exe

Adds Run key to start application 2 TTPs 8 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\payment = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\payment.js\""	wscript.exe
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\payment = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\payment.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\payment = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\payment.js\""	wscript.exe
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\payment = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\payment.js\""	wscript.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Script User-Agent 4 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	7	WSHRAT\|D44DAEDB\|ORXGKKZC\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 4/11/2022\|JavaScript
HTTP User-Agent header	11	WSHRAT\|D44DAEDB\|ORXGKKZC\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 4/11/2022\|JavaScript
HTTP User-Agent header	12	WSHRAT\|D44DAEDB\|ORXGKKZC\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 4/11/2022\|JavaScript
HTTP User-Agent header	13	WSHRAT\|D44DAEDB\|ORXGKKZC\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 4/11/2022\|JavaScript

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 544 wrote to memory of 1872	544	wscript.exe	26
PID 544 wrote to memory of 1872	544	wscript.exe	26
PID 544 wrote to memory of 1872	544	wscript.exe	26

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\payment.js
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:544
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\payment.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Adds Run key to start application
  PID:1872

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\payment.js

Filesize
24KB

MD5
b3d68dd5492fa261df75900cc205205f

SHA1
6b1ccb0ea2ad7f59ad4feff99f7c9f53218ac64d

SHA256
d195a4460cbf030a568e980c5b07e7f33cb2f0d5b2f9634b1ca71ad43fafa8d6

SHA512
42695f2c81e09343dd8fb94c5a5a82235bc587c70f8ea0bfd4c4490cf5d38e57243f1c641cd72180c5d036fefb8454b651bec6931b86b7d15304bb10043931a0

Download Submit
C:\Users\Admin\AppData\Roaming\payment.js

Filesize
24KB

MD5
b3d68dd5492fa261df75900cc205205f

SHA1
6b1ccb0ea2ad7f59ad4feff99f7c9f53218ac64d

SHA256
d195a4460cbf030a568e980c5b07e7f33cb2f0d5b2f9634b1ca71ad43fafa8d6

SHA512
42695f2c81e09343dd8fb94c5a5a82235bc587c70f8ea0bfd4c4490cf5d38e57243f1c641cd72180c5d036fefb8454b651bec6931b86b7d15304bb10043931a0

Download Submit
memory/544-54-0x000007FEFBB21000-0x000007FEFBB23000-memory.dmp

Filesize
8KB

Download