vjw0rm | 041857494d57688060972d7a46663f5295df45223e3445afa95d43e674fd053c

General

Target

eReceipt.js
Size

25KB
MD5

75c51e4760f40c18863f675ef0d06501
SHA1

64a0bdded7dd1a220f77958f3bf322376cdb832f
SHA256

041857494d57688060972d7a46663f5295df45223e3445afa95d43e674fd053c
SHA512

7b2ba2b9fca230a2f5eb6ef4fa02b635bef472b6a506da914838645bdcb2e3ca5ff2734c0015ba9d1e65b615747b3ba3db0f6264184e6f0b980a5b216db83a42

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Extracted

Family

vjw0rm

C2

http://loadcash.duckdns.org:7778

Signatures

Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm

Blocklisted process makes network request 14 IoCs

Processes:

wscript.exewscript.exe

flow	pid	process
8	1200	wscript.exe
9	1820	wscript.exe
10	1200	wscript.exe
12	1200	wscript.exe
16	1200	wscript.exe
18	1200	wscript.exe
19	1200	wscript.exe
22	1200	wscript.exe
23	1200	wscript.exe
25	1200	wscript.exe
28	1200	wscript.exe
29	1200	wscript.exe
31	1200	wscript.exe
33	1200	wscript.exe

Drops startup file 3 IoCs

Processes:

wscript.exewscript.exe

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

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wscript.exewscript.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\3W2CQPM6PM = "\"C:\\Users\\Admin\\AppData\\Roaming\\eReceipt.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\zXdOQTClWR.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\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

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 1820 wrote to memory of 1200	1820	wscript.exe	wscript.exe
PID 1820 wrote to memory of 1200	1820	wscript.exe	wscript.exe
PID 1820 wrote to memory of 1200	1820	wscript.exe	wscript.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\eReceipt.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1820

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\zXdOQTClWR.js"
2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:1200

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\zXdOQTClWR.js
MD5
1fd4ed003479cb6e23104c25a6d39f65

SHA1
79b8bdceafde6bd5c93443bfbb0eaf8b9389371c

SHA256
3b3b7361c0c2bcdfc2897e9f6c9e33777fbd348780b4ad29ae3b1eef2c160778

SHA512
7c5723b22e4064d281b7c06864a2d43a3331c1d2668cd6b3dc6d18a4e89902212108d4fadc158e60e1ef6983d57ab24923d0ed7b62e0589031208e5826cd803b

Download Submit
memory/1200-61-0x0000000000000000-mapping.dmp

Download
memory/1820-60-0x000007FEFBED1000-0x000007FEFBED3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads