vjw0rm | b302998fc5e3ff4a61d22f5c35ea5e168e040d10bc8437cf8c190bfc27e63dd0

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
21-12-2024 18:08

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General

Target

JaffaCakes118_b302998fc5e3ff4a61d22f5c35ea5e168e040d10bc8437cf8c190bfc27e63dd0.js
Size

18KB
MD5

1d9327d69fd263ac645b6a4eef31cb24
SHA1

3cff6c8d464e8c254048635dd68e31225ffcb6e4
SHA256

b302998fc5e3ff4a61d22f5c35ea5e168e040d10bc8437cf8c190bfc27e63dd0
SHA512

50cf6ff55a3f73803b4b1313c029e08e66e62ff6de1fd839fec21aecc09d30254616a3b8aab271828a7a69f4835d155ee4af53bb3c4daaa3b4a1cb2305409e2f
SSDEEP

192:XppRDuksQVaQ3bBcaJQYkobtD07DX5sRqvex8aIxjPyeUuKGwSfb+U0Sl2c2fgYS:XvvpaQ3bC9voUDXYHyjPw//9gRL

Score

10^/10

vjw0rm execution persistence trojan worm

Malware Config

Signatures

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

Blocklisted process makes network request 32 IoCs

flow	pid	Process
5	2272	wscript.exe
7	2272	wscript.exe
9	2272	wscript.exe
10	2272	wscript.exe
13	2272	wscript.exe
14	2272	wscript.exe
18	2272	wscript.exe
19	2272	wscript.exe
22	2272	wscript.exe
23	2272	wscript.exe
25	2272	wscript.exe
26	2272	wscript.exe
31	2272	wscript.exe
32	2272	wscript.exe
34	2272	wscript.exe
35	2272	wscript.exe
37	2272	wscript.exe
38	2272	wscript.exe
43	2272	wscript.exe
44	2272	wscript.exe
46	2272	wscript.exe
47	2272	wscript.exe
50	2272	wscript.exe
51	2272	wscript.exe
55	2272	wscript.exe
56	2272	wscript.exe
59	2272	wscript.exe
60	2272	wscript.exe
62	2272	wscript.exe
64	2272	wscript.exe
68	2272	wscript.exe
69	2272	wscript.exe

Drops startup file 2 IoCs

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\amqolYPJMq.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

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2272 wrote to memory of 2796	2272	wscript.exe	31
PID 2272 wrote to memory of 2796	2272	wscript.exe	31
PID 2272 wrote to memory of 2796	2272	wscript.exe	31

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b302998fc5e3ff4a61d22f5c35ea5e168e040d10bc8437cf8c190bfc27e63dd0.js
1⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:2272
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\amqolYPJMq.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:2796

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

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\amqolYPJMq.js

Filesize
10KB

MD5
3f7b92769fc59d8adc125b4d4e8adee4

SHA1
b3ea6913dcf3681572a1db1f429cc5e1e49b060e

SHA256
e1fccde6528046c2c1e41096085c199efaddc1393d42f6696165aeec43c9a209

SHA512
659caad97e885af9d5f2dece465873b517fc34a5c67f5f0aba08b9ef868cca57fe025ed9979bd0933e46ee45792d5b424bd99a24c4449c5b739f17e0b6bdf01f

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads