vjw0rm | 7385592ac66818d908a5591d21fdf11ad4e8006685bd81009823166d2560db9d

Analysis

max time kernel
149s
max time network
152s
platform
windows10_x64
resource
win10v20210408
submitted
30-08-2021 08:56

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General

Target

Order inquiry_0374_08_30_21.js
Size

21KB
MD5

9590451d9db0f6b02577b7dbec449850
SHA1

997317bed5f018f9ae87d4594d681eef32e8988c
SHA256

7385592ac66818d908a5591d21fdf11ad4e8006685bd81009823166d2560db9d
SHA512

f299ad64205ce9f70b37f8432f538702eb373e939acc666fac511b229f406470d5a62b4ca2abc4eb9aec8bbc96d4e8181f0d88cc22a7d3742b0a5b4e05b18ea9

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Signatures

Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm
Blocklisted process makes network request 1 IoCs

Processes:

wscript.exe

flow pid process

10 564 wscript.exe

flow	pid	process
10	564	wscript.exe

Drops startup file 1 IoCs

Processes:

wscript.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Order inquiry_0374_08_30_21.js	wscript.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wscript.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\P7EKOWB6GH = "\"C:\\ProgramData\\Order inquiry_0374_08_30_21.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
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

2704 schtasks.exe

pid	process
2704	schtasks.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 564 wrote to memory of 2704	564	wscript.exe	schtasks.exe
PID 564 wrote to memory of 2704	564	wscript.exe	schtasks.exe

C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\Order inquiry_0374_08_30_21.js"
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:564

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\ProgramData\Order inquiry_0374_08_30_21.js
2⤵
- Creates scheduled task(s)
PID:2704

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/2704-114-0x0000000000000000-mapping.dmp

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