vjw0rm | 041857494d57688060972d7a46663f5295df45223e3445afa95d43e674fd053c

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
01-04-2024 17:14

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General

Target

75c51e4760f40c18863f675ef0d06501_JaffaCakes118.js
Size

25KB
MD5

75c51e4760f40c18863f675ef0d06501
SHA1

64a0bdded7dd1a220f77958f3bf322376cdb832f
SHA256

041857494d57688060972d7a46663f5295df45223e3445afa95d43e674fd053c
SHA512

7b2ba2b9fca230a2f5eb6ef4fa02b635bef472b6a506da914838645bdcb2e3ca5ff2734c0015ba9d1e65b615747b3ba3db0f6264184e6f0b980a5b216db83a42
SSDEEP

768:h+lwW21fUb2VDLXfoX4k/BL7Gfj2voDs53+lt5HSaBfa97D:4lW1sCV/qjpuqEs53+lt5lSF

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 19 IoCs

flow	pid	Process
6	2172	wscript.exe
9	2172	wscript.exe
12	2172	wscript.exe
15	2172	wscript.exe
17	2172	wscript.exe
20	2172	wscript.exe
23	2172	wscript.exe
27	2172	wscript.exe
29	2172	wscript.exe
32	2172	wscript.exe
35	2172	wscript.exe
37	2172	wscript.exe
42	2172	wscript.exe
44	2172	wscript.exe
46	2172	wscript.exe
50	2172	wscript.exe
52	2172	wscript.exe
54	2172	wscript.exe
59	2172	wscript.exe

Drops startup file 3 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\zXdOQTClWR.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\zXdOQTClWR.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\75c51e4760f40c18863f675ef0d06501_JaffaCakes118.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-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\zXdOQTClWR.js\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\3W2CQPM6PM = "\"C:\\Users\\Admin\\AppData\\Roaming\\75c51e4760f40c18863f675ef0d06501_JaffaCakes118.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 3 IoCs

description	pid	Process	procid_target
PID 2172 wrote to memory of 2528	2172	wscript.exe	28
PID 2172 wrote to memory of 2528	2172	wscript.exe	28
PID 2172 wrote to memory of 2528	2172	wscript.exe	28

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\75c51e4760f40c18863f675ef0d06501_JaffaCakes118.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2172
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\zXdOQTClWR.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:2528

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
8KB

MD5
1fd4ed003479cb6e23104c25a6d39f65

SHA1
79b8bdceafde6bd5c93443bfbb0eaf8b9389371c

SHA256
3b3b7361c0c2bcdfc2897e9f6c9e33777fbd348780b4ad29ae3b1eef2c160778

SHA512
7c5723b22e4064d281b7c06864a2d43a3331c1d2668cd6b3dc6d18a4e89902212108d4fadc158e60e1ef6983d57ab24923d0ed7b62e0589031208e5826cd803b

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads