vjw0rm | 25027a9677193ee152a6621382d40fcf31437b4366f6566d369f24d93f52f56d

General

Target

CREDIT NOTE.js
Size

47KB
MD5

771ee97bd2e61801d47f37b60a69d1c8
SHA1

b77ea83d939bc5ce8ceff9668488f8045ba58a0b
SHA256

25027a9677193ee152a6621382d40fcf31437b4366f6566d369f24d93f52f56d
SHA512

2ac19e006117d449467ec49f4b600293775bdbb0f03869a6e7c914449fb522d22f74ab060d0086ef1a033c91d987c38ddd97e258a7575581e95d68b1657737b1
SSDEEP

768:bH5hjkXAZJMdHG7TH8eA0oWz6nSwsmjX1uMW7/1W8eXBnKX2CzHsPOux4GsPje//:bH5hIwZ+dHk8n0ISwXZ8OBKX2yKCXlgT

Score

10^/10

vjw0rm wshrat persistence trojan worm

Malware Config

Extracted

Family

wshrat

C2

http://3lv15.duckdns.org:6697

Signatures

Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm
WSHRAT
WSHRAT is a variant of Houdini worm and has vbs and js variants.
trojan wshrat

Blocklisted process makes network request 32 IoCs

Processes:

wscript.exewscript.exe

flow	pid	process
7	1272	wscript.exe
8	1744	wscript.exe
9	1272	wscript.exe
10	1272	wscript.exe
13	1272	wscript.exe
14	1272	wscript.exe
16	1272	wscript.exe
18	1744	wscript.exe
20	1272	wscript.exe
23	1272	wscript.exe
24	1272	wscript.exe
27	1272	wscript.exe
29	1272	wscript.exe
31	1272	wscript.exe
34	1744	wscript.exe
35	1272	wscript.exe
37	1272	wscript.exe
40	1272	wscript.exe
42	1272	wscript.exe
45	1272	wscript.exe
47	1744	wscript.exe
48	1272	wscript.exe
52	1272	wscript.exe
53	1272	wscript.exe
56	1272	wscript.exe
58	1272	wscript.exe
60	1272	wscript.exe
62	1744	wscript.exe
64	1272	wscript.exe
66	1272	wscript.exe
68	1272	wscript.exe
70	1272	wscript.exe

Drops startup file 4 IoCs

Processes:

wscript.exewscript.exewscript.exe

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

Adds Run key to start application 2 TTPs 8 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wscript.exewscript.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\CREDIT NOTE = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\CREDIT NOTE.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\CREDIT NOTE = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\CREDIT NOTE.js\""	wscript.exe
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\CREDIT NOTE = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\CREDIT NOTE.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\CREDIT NOTE = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\CREDIT NOTE.js\""	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

Script User-Agent 27 IoCs

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

Processes:

description	flow	ioc
HTTP User-Agent header	23	WSHRAT\|D44DAEDB\|ORXGKKZC\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 30/9/2022\|JavaScript
HTTP User-Agent header	7	WSHRAT\|D44DAEDB\|ORXGKKZC\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 30/9/2022\|JavaScript
HTTP User-Agent header	70	WSHRAT\|D44DAEDB\|ORXGKKZC\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 30/9/2022\|JavaScript
HTTP User-Agent header	31	WSHRAT\|D44DAEDB\|ORXGKKZC\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 30/9/2022\|JavaScript
HTTP User-Agent header	35	WSHRAT\|D44DAEDB\|ORXGKKZC\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 30/9/2022\|JavaScript
HTTP User-Agent header	58	WSHRAT\|D44DAEDB\|ORXGKKZC\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 30/9/2022\|JavaScript
HTTP User-Agent header	60	WSHRAT\|D44DAEDB\|ORXGKKZC\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 30/9/2022\|JavaScript
HTTP User-Agent header	66	WSHRAT\|D44DAEDB\|ORXGKKZC\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 30/9/2022\|JavaScript
HTTP User-Agent header	24	WSHRAT\|D44DAEDB\|ORXGKKZC\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 30/9/2022\|JavaScript
HTTP User-Agent header	10	WSHRAT\|D44DAEDB\|ORXGKKZC\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 30/9/2022\|JavaScript
HTTP User-Agent header	13	WSHRAT\|D44DAEDB\|ORXGKKZC\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 30/9/2022\|JavaScript
HTTP User-Agent header	14	WSHRAT\|D44DAEDB\|ORXGKKZC\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 30/9/2022\|JavaScript
HTTP User-Agent header	20	WSHRAT\|D44DAEDB\|ORXGKKZC\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 30/9/2022\|JavaScript
HTTP User-Agent header	27	WSHRAT\|D44DAEDB\|ORXGKKZC\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 30/9/2022\|JavaScript
HTTP User-Agent header	37	WSHRAT\|D44DAEDB\|ORXGKKZC\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 30/9/2022\|JavaScript
HTTP User-Agent header	52	WSHRAT\|D44DAEDB\|ORXGKKZC\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 30/9/2022\|JavaScript
HTTP User-Agent header	45	WSHRAT\|D44DAEDB\|ORXGKKZC\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 30/9/2022\|JavaScript
HTTP User-Agent header	48	WSHRAT\|D44DAEDB\|ORXGKKZC\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 30/9/2022\|JavaScript
HTTP User-Agent header	53	WSHRAT\|D44DAEDB\|ORXGKKZC\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 30/9/2022\|JavaScript
HTTP User-Agent header	64	WSHRAT\|D44DAEDB\|ORXGKKZC\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 30/9/2022\|JavaScript
HTTP User-Agent header	42	WSHRAT\|D44DAEDB\|ORXGKKZC\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 30/9/2022\|JavaScript
HTTP User-Agent header	16	WSHRAT\|D44DAEDB\|ORXGKKZC\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 30/9/2022\|JavaScript
HTTP User-Agent header	29	WSHRAT\|D44DAEDB\|ORXGKKZC\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 30/9/2022\|JavaScript
HTTP User-Agent header	40	WSHRAT\|D44DAEDB\|ORXGKKZC\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 30/9/2022\|JavaScript
HTTP User-Agent header	56	WSHRAT\|D44DAEDB\|ORXGKKZC\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 30/9/2022\|JavaScript
HTTP User-Agent header	68	WSHRAT\|D44DAEDB\|ORXGKKZC\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 30/9/2022\|JavaScript
HTTP User-Agent header	9	WSHRAT\|D44DAEDB\|ORXGKKZC\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 30/9/2022\|JavaScript

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

wscript.exewscript.exe

description	pid	process	target process
PID 1628 wrote to memory of 1744	1628	wscript.exe	wscript.exe
PID 1628 wrote to memory of 1744	1628	wscript.exe	wscript.exe
PID 1628 wrote to memory of 1744	1628	wscript.exe	wscript.exe
PID 1628 wrote to memory of 1272	1628	wscript.exe	wscript.exe
PID 1628 wrote to memory of 1272	1628	wscript.exe	wscript.exe
PID 1628 wrote to memory of 1272	1628	wscript.exe	wscript.exe
PID 1272 wrote to memory of 1812	1272	wscript.exe	wscript.exe
PID 1272 wrote to memory of 1812	1272	wscript.exe	wscript.exe
PID 1272 wrote to memory of 1812	1272	wscript.exe	wscript.exe

C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\CREDIT NOTE.js"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1628

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\WjUZyzILPd.js"
2⤵
- Blocklisted process makes network request
- Drops startup file
PID:1744

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\CREDIT NOTE.js"
2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1272

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\WjUZyzILPd.js"
3⤵
PID:1812

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\CREDIT NOTE.js
Filesize
47KB

MD5
771ee97bd2e61801d47f37b60a69d1c8

SHA1
b77ea83d939bc5ce8ceff9668488f8045ba58a0b

SHA256
25027a9677193ee152a6621382d40fcf31437b4366f6566d369f24d93f52f56d

SHA512
2ac19e006117d449467ec49f4b600293775bdbb0f03869a6e7c914449fb522d22f74ab060d0086ef1a033c91d987c38ddd97e258a7575581e95d68b1657737b1

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\CREDIT NOTE.js
Filesize
47KB

MD5
771ee97bd2e61801d47f37b60a69d1c8

SHA1
b77ea83d939bc5ce8ceff9668488f8045ba58a0b

SHA256
25027a9677193ee152a6621382d40fcf31437b4366f6566d369f24d93f52f56d

SHA512
2ac19e006117d449467ec49f4b600293775bdbb0f03869a6e7c914449fb522d22f74ab060d0086ef1a033c91d987c38ddd97e258a7575581e95d68b1657737b1

Download Submit
C:\Users\Admin\AppData\Roaming\WjUZyzILPd.js
Filesize
8KB

MD5
2f2198533289a4dac6f4406539f5b0f5

SHA1
f37eef69eb03c33e41a0cbe2e3fcfb68070ccb58

SHA256
2c9f6f3a3ee784722c588ff9bc72259461acc1084629364e44d479792c381bb4

SHA512
cf791618aafeef05a5dd167e32746384f1ec8bb693735bcd7b1538e0ee988c76d4cd0235c951f24675045dcaebcf7d19fb3b8cb9d9ae76a4a1c695de23e612a5

Download Submit
C:\Users\Admin\AppData\Roaming\WjUZyzILPd.js
Filesize
8KB

MD5
2f2198533289a4dac6f4406539f5b0f5

SHA1
f37eef69eb03c33e41a0cbe2e3fcfb68070ccb58

SHA256
2c9f6f3a3ee784722c588ff9bc72259461acc1084629364e44d479792c381bb4

SHA512
cf791618aafeef05a5dd167e32746384f1ec8bb693735bcd7b1538e0ee988c76d4cd0235c951f24675045dcaebcf7d19fb3b8cb9d9ae76a4a1c695de23e612a5

Download Submit
memory/1272-57-0x0000000000000000-mapping.dmp

Download
memory/1628-54-0x000007FEFB761000-0x000007FEFB763000-memory.dmp

Filesize
8KB

Download
memory/1744-55-0x0000000000000000-mapping.dmp

Download
memory/1812-60-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads