vjw0rm | c7f0fcb6edc78e2ab1e6d54d3a5f420785e3cfb2ffef15cd5dda15ef3fe51b0a

Analysis

max time kernel
140s
max time network
152s
platform
windows10_x64
resource
win10v20210410
submitted
16-07-2021 18:40

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General

Target

RECEIPT_SHIPPING_009898766.js
Size

5KB
MD5

6c675ed9076cdfe383565ce2aa744d8b
SHA1

1e241c076f98a877805aead8c10ec1eb93c758d8
SHA256

c7f0fcb6edc78e2ab1e6d54d3a5f420785e3cfb2ffef15cd5dda15ef3fe51b0a
SHA512

c721ae27bd565f08621b6cd533fa36e1cc97f1a16b7ad741022852c31af1fa277858181d446fd2deb272b5670e0cb8a7c02cac39724e2278c80bd46c1aff1af3

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

9 508 wscript.exe

flow	pid	process
9	508	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\RECEIPT_SHIPPING_009898766.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\RECEIPT_SHIPPING_009898766.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-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\FRZKHEKJV3 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\RECEIPT_SHIPPING_009898766.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

1908 schtasks.exe

pid	process
1908	schtasks.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 508 wrote to memory of 1908	508	wscript.exe	schtasks.exe
PID 508 wrote to memory of 1908	508	wscript.exe	schtasks.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\RECEIPT_SHIPPING_009898766.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:508

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\RECEIPT_SHIPPING_009898766.js
2⤵
- Creates scheduled task(s)
PID:1908

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/1908-114-0x0000000000000000-mapping.dmp

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