vjw0rm | 95a9a156f90360d08a2dab95b21a77bdc614ae73035026aac8993b9b46ae521a

Analysis

max time kernel
146s
max time network
146s
platform
windows7_x64
resource
win7v20201028
submitted
05-04-2021 14:27

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General

Target

odk_Order_Receipt.js
Size

102KB
MD5

2f61bc230d26d4d859eba0dbce48017a
SHA1

a36db7281117c9e25ccdef23274ab2a27eb561b2
SHA256

95a9a156f90360d08a2dab95b21a77bdc614ae73035026aac8993b9b46ae521a
SHA512

1dcc2aa46ab5da579443301689f517367ddd0569b9609ed48d90b083bc8e97fdae9de82e92d5d0cc8b49b182a361ead93cb3984158af02c0e2ba0534648c63f3

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

6 644 wscript.exe

flow	pid	process
6	644	wscript.exe

Drops startup file 2 IoCs

Processes:

wscript.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\odk_Order_Receipt.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\odk_Order_Receipt.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-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\UKRZWF15HK = "'C:\\Users\\Admin\\AppData\\Local\\Temp\\odk_Order_Receipt.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

1352 schtasks.exe

pid	process
1352	schtasks.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 644 wrote to memory of 1352	644	wscript.exe	schtasks.exe
PID 644 wrote to memory of 1352	644	wscript.exe	schtasks.exe
PID 644 wrote to memory of 1352	644	wscript.exe	schtasks.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\odk_Order_Receipt.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:644

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr 'C:\Users\Admin\AppData\Local\Temp\odk_Order_Receipt.js
2⤵
- Creates scheduled task(s)
PID:1352

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

Replay Monitor

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Downloads

memory/800-3-0x000007FEF6350000-0x000007FEF65CA000-memory.dmp

Filesize
2.5MB

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memory/1352-2-0x0000000000000000-mapping.dmp

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