vjw0rm | a48662837e2ec326182f3c966128023993f0ddb16d70ca0b457190f9239aafd6

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
26-02-2024 21:54

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General

Target

a48662837e2ec326182f3c966128023993f0ddb16d70ca0b457190f9239aafd6.js
Size

20KB
MD5

7cca426f80eb9e873deda56270e3a87d
SHA1

3d453d3444f0fd8b9b36690846d53afe6e46e3ce
SHA256

a48662837e2ec326182f3c966128023993f0ddb16d70ca0b457190f9239aafd6
SHA512

240aee7b4bf29c4668c6f8676378d4e278453a5941f082c1b343c4e8353c71961974b1dd51693efbff48d2d9ab330e890c6530592354f755d9b7338b979c18ed
SSDEEP

384:3SK4zDaYUwp4CgPOglA+SXPLzkcauhZvQVcJeaDhDK:i/fGmgl+zzkcautwaDhu

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 6 IoCs

flow	pid	Process
24	3884	wscript.exe
32	3884	wscript.exe
42	3884	wscript.exe
54	3884	wscript.exe
60	3884	wscript.exe
70	3884	wscript.exe

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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 3 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ItfSPdhJKB.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ItfSPdhJKB.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a48662837e2ec326182f3c966128023993f0ddb16d70ca0b457190f9239aafd6.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-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\ItfSPdhJKB.js\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RV7KJCEOJC = "\"C:\\Users\\Admin\\AppData\\Roaming\\a48662837e2ec326182f3c966128023993f0ddb16d70ca0b457190f9239aafd6.js\""	wscript.exe

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
4400	schtasks.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3884 wrote to memory of 688	3884	wscript.exe	93
PID 3884 wrote to memory of 688	3884	wscript.exe	93
PID 3884 wrote to memory of 4400	3884	wscript.exe	96
PID 3884 wrote to memory of 4400	3884	wscript.exe	96

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\a48662837e2ec326182f3c966128023993f0ddb16d70ca0b457190f9239aafd6.js
1⤵
- Blocklisted process makes network request
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3884
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\ItfSPdhJKB.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:688
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\a48662837e2ec326182f3c966128023993f0ddb16d70ca0b457190f9239aafd6.js
  2⤵
  - Creates scheduled task(s)
  PID:4400

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4140 --field-trial-handle=2692,i,8678872182442199182,12502579059484928042,262144 --variations-seed-version /prefetch:8
1⤵
PID:4136

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

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Downloads

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

Filesize
6KB

MD5
0851f9bfb7bdea6addc8e4fcaa6a61aa

SHA1
039314465e36535a70401b02f1440c3ae7280aeb

SHA256
0ddbfca6f4f211321799ea6b750f5a4282e911716b497ac4c24ecb88f89af501

SHA512
ad0eb6d2fb7f988f8c280fe873659f456d6a40180bc6fb781bc9742836db89f4783d31544d2e471b0ceaea11970af813c117b14480afa4f855de6418e1c93fe2

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads