vjw0rm | b1ac0a1c5deb56c3668b79edcbbdba248ce5d8ff798e6f18f64626f5ba3427a7

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
07-05-2024 17:20

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Pending - AWB 8020072326.js
Size

25KB
MD5

1826cdc5e33da035d66fb04375289ccd
SHA1

42cd583dd99548c2a1408b3fc3056ac9247f914d
SHA256

ccdd1042d5bb499047575474d90ea911629261381b5992e91cc57e9d07eb0b1e
SHA512

a7c72283ca79a1e7f0dddcf72906be40309fb4800c9ba911ef8f7e4921cc0ff25a903a7c5e97337ac27297632284cecc0422d993b191356485e9fec78251d2b6
SSDEEP

384:pwL0wdDK1BaBjzWWxcJqoMXvW2aE2uLULwHHYBmRipLw5I5PvHTHXJ1JHSvVDD4k:inKzgePLwn78AI5PjJsVDD4f7dOpO+

Score

10^/10

vjw0rm execution persistence trojan worm

Malware Config

Signatures

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 4 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\CDtcGSGmCx.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\CDtcGSGmCx.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Pending - AWB 8020072326.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Pending - AWB 8020072326.js	wscript.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VD5F31VTCZ = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Pending - AWB 8020072326.js\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\0IDR124VF6 = "\"C:\\Users\\Admin\\AppData\\Roaming\\CDtcGSGmCx.js\""	wscript.exe

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

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/Job

T1053

pid	Process
748	schtasks.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 380 wrote to memory of 464	380	wscript.exe	83
PID 380 wrote to memory of 464	380	wscript.exe	83
PID 380 wrote to memory of 748	380	wscript.exe	85
PID 380 wrote to memory of 748	380	wscript.exe	85

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\Pending - AWB 8020072326.js"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:380
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\CDtcGSGmCx.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:464
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\Pending - AWB 8020072326.js
  2⤵
  - Creates scheduled task(s)
  PID:748

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\CDtcGSGmCx.js

Filesize
8KB

MD5
87d873a4fd3d66d97e9f2000cb6c3234

SHA1
19208c058fdde8950a9a73cb7b35cd0fd801c1a7

SHA256
d7d8a8e9732d5e1bda8cd07d08d59dc33eff36f0e191d434617793fd81afe5df

SHA512
9c26f307c90c8be071bd49c3cc126f9cc23582f25ed015e255c64d5a6eb48888baf7fd95ced915ffbc746faa6a38f0def95dfddc9b05b2f02dd5cc1a2cc77fc8

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads