vjw0rm | ec12c4a76b8aaaae0bc169b3a974d0b68dda705150fac4dbecd26486f157c039

Analysis

max time kernel
155s
max time network
162s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
31-03-2024 10:14

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General

Target

53e80f5441f77abf03ac535d2ea55327_JaffaCakes118.js
Size

24KB
MD5

53e80f5441f77abf03ac535d2ea55327
SHA1

d1accac81fc1e6afaa92a563bff1cd124dbc7ae2
SHA256

ec12c4a76b8aaaae0bc169b3a974d0b68dda705150fac4dbecd26486f157c039
SHA512

27495d649d80dd0814091cafddd067cd866fe9609684d4d2b1e3937aeb845e6403573dfba5d9ef971e94670b2eb8a7be4520b2caf6d142554c6578ad6eb91958
SSDEEP

768:h+lwW2uGBtTqK9XU2xWBxFibS+YmOcZ27oxEHSaBfaXD:4lWZBtJrsQbymJZ27oxElSz

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 17 IoCs

flow	pid	Process
7	2868	wscript.exe
19	2868	wscript.exe
33	2868	wscript.exe
48	2868	wscript.exe
51	2868	wscript.exe
53	2868	wscript.exe
55	2868	wscript.exe
60	2868	wscript.exe
62	2868	wscript.exe
67	2868	wscript.exe
70	2868	wscript.exe
73	2868	wscript.exe
75	2868	wscript.exe
77	2868	wscript.exe
80	2868	wscript.exe
86	2868	wscript.exe
88	2868	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-1-5-21-557049126-2506969350-2798870634-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 3 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\xTZBMhzFuE.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\53e80f5441f77abf03ac535d2ea55327_JaffaCakes118.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\xTZBMhzFuE.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-1-5-21-557049126-2506969350-2798870634-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3W2CQPM6PM = "\"C:\\Users\\Admin\\AppData\\Roaming\\53e80f5441f77abf03ac535d2ea55327_JaffaCakes118.js\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-557049126-2506969350-2798870634-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\xTZBMhzFuE.js\""	wscript.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2868 wrote to memory of 3228	2868	wscript.exe	85
PID 2868 wrote to memory of 3228	2868	wscript.exe	85

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\53e80f5441f77abf03ac535d2ea55327_JaffaCakes118.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:2868
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\xTZBMhzFuE.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:3228

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

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\xTZBMhzFuE.js

Filesize
8KB

MD5
c723c09e07ec54a2833fdd1cf2adcee3

SHA1
9acabb132972ac2dc178e396a903258c61a3adc9

SHA256
0d231c7df5c5c19a43d3992e654b6fbbe7fd32b8a66040471dbe398a35947f04

SHA512
1ccaeaab8ee01dd7b152e665941094dac1af6b73e8a12c713615be89c95bd8ce76a8c99547ca5f366d63bb71c45a0e15dab0930f0c8cf771cc6ff72ca2c976c2

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads