vjw0rm | 94e303522613e9d7826ae18fcc1a124b0293f21c4a44dc0da59e9ef50697fb5e

Analysis

max time kernel
150s
max time network
152s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
29-03-2023 11:10

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

1.js
Size

4.5MB
MD5

9cf2c793029ae8dd84a387ba66e8c432
SHA1

48f6d8e5c4f55434a3d1fdc1531bd37fb6248d10
SHA256

d76d9fa7fa75a31b2a62804c8925a1c352f407831865bebc005b7f01676b5ac9
SHA512

33dd2fbc290c8feb31570e200f469729d5385e3f214edb4299b47bd841a0cd24a9ea211808e6c58cef63a812b27558852dbed2daf0cfac8953b3d028fd019848
SSDEEP

24576:8NLb0+2xYFsLoDw9svltZ7r55HNYYkY4WOxbZQCgvRo5PD1rMLSeGU0pOlBY9Pcw:3ueQa

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 37 IoCs

flow	pid	Process
6	1696	wscript.exe
9	268	wscript.exe
12	1500	wscript.exe
13	268	wscript.exe
14	1696	wscript.exe
15	1500	wscript.exe
17	1696	wscript.exe
21	1500	wscript.exe
24	1696	wscript.exe
26	268	wscript.exe
27	1500	wscript.exe
29	1696	wscript.exe
30	1500	wscript.exe
32	1696	wscript.exe
35	1500	wscript.exe
38	1696	wscript.exe
39	268	wscript.exe
41	1500	wscript.exe
43	1696	wscript.exe
44	1500	wscript.exe
46	1696	wscript.exe
48	1500	wscript.exe
53	1696	wscript.exe
54	268	wscript.exe
56	1500	wscript.exe
58	1696	wscript.exe
59	1500	wscript.exe
61	1696	wscript.exe
64	1500	wscript.exe
67	1696	wscript.exe
68	268	wscript.exe
71	1500	wscript.exe
72	1696	wscript.exe
74	1500	wscript.exe
75	1696	wscript.exe
77	1500	wscript.exe
81	1696	wscript.exe

Drops startup file 5 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\xQgwkAjhRq.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\xQgwkAjhRq.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\xQgwkAjhRq.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1.js	wscript.exe

Adds Run key to start application 2 TTPs 8 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Windows\CurrentVersion\Run\1 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\1.js\""	wscript.exe
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\1 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\1.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Windows\CurrentVersion\Run\1 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\1.js\""	wscript.exe
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\1 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\1.js\""	wscript.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
8	ip-api.com

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2044 wrote to memory of 1696	2044	wscript.exe	28
PID 2044 wrote to memory of 1696	2044	wscript.exe	28
PID 2044 wrote to memory of 1696	2044	wscript.exe	28
PID 2044 wrote to memory of 268	2044	wscript.exe	29
PID 2044 wrote to memory of 268	2044	wscript.exe	29
PID 2044 wrote to memory of 268	2044	wscript.exe	29
PID 268 wrote to memory of 1500	268	wscript.exe	31
PID 268 wrote to memory of 1500	268	wscript.exe	31
PID 268 wrote to memory of 1500	268	wscript.exe	31

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\1.js
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2044
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\xQgwkAjhRq.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  PID:1696
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\1.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:268
- - C:\Windows\System32\wscript.exe
    "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\xQgwkAjhRq.js"
    3⤵
    - Blocklisted process makes network request
    - Drops startup file
    PID:1500

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\1.js

Filesize
4.5MB

MD5
9cf2c793029ae8dd84a387ba66e8c432

SHA1
48f6d8e5c4f55434a3d1fdc1531bd37fb6248d10

SHA256
d76d9fa7fa75a31b2a62804c8925a1c352f407831865bebc005b7f01676b5ac9

SHA512
33dd2fbc290c8feb31570e200f469729d5385e3f214edb4299b47bd841a0cd24a9ea211808e6c58cef63a812b27558852dbed2daf0cfac8953b3d028fd019848

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1.js

Filesize
4.5MB

MD5
9cf2c793029ae8dd84a387ba66e8c432

SHA1
48f6d8e5c4f55434a3d1fdc1531bd37fb6248d10

SHA256
d76d9fa7fa75a31b2a62804c8925a1c352f407831865bebc005b7f01676b5ac9

SHA512
33dd2fbc290c8feb31570e200f469729d5385e3f214edb4299b47bd841a0cd24a9ea211808e6c58cef63a812b27558852dbed2daf0cfac8953b3d028fd019848

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1.js

Filesize
4.5MB

MD5
9cf2c793029ae8dd84a387ba66e8c432

SHA1
48f6d8e5c4f55434a3d1fdc1531bd37fb6248d10

SHA256
d76d9fa7fa75a31b2a62804c8925a1c352f407831865bebc005b7f01676b5ac9

SHA512
33dd2fbc290c8feb31570e200f469729d5385e3f214edb4299b47bd841a0cd24a9ea211808e6c58cef63a812b27558852dbed2daf0cfac8953b3d028fd019848

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\xQgwkAjhRq.js

Filesize
346KB

MD5
0fbcb6f83b0f64e57835d021bb6e917d

SHA1
0fa656e1cf06a0ea20e19a4ddd951f0d0d05dc38

SHA256
c518c547d809de7ccae1259611bcb52d6fa435cff67c910d25c5b961ddc45466

SHA512
70f322596a2ba8e079d39d35a10e771f8269dc08e03713736ba070f6cf34cf9bbcb9ac1065a66ad0a0afb66ad68e000953e593164d8858224ce1aeb4cde5120f

Download Submit
C:\Users\Admin\AppData\Roaming\xQgwkAjhRq.js

Filesize
346KB

MD5
0fbcb6f83b0f64e57835d021bb6e917d

SHA1
0fa656e1cf06a0ea20e19a4ddd951f0d0d05dc38

SHA256
c518c547d809de7ccae1259611bcb52d6fa435cff67c910d25c5b961ddc45466

SHA512
70f322596a2ba8e079d39d35a10e771f8269dc08e03713736ba070f6cf34cf9bbcb9ac1065a66ad0a0afb66ad68e000953e593164d8858224ce1aeb4cde5120f

Download Submit
C:\Users\Admin\AppData\Roaming\xQgwkAjhRq.js

Filesize
346KB

MD5
0fbcb6f83b0f64e57835d021bb6e917d

SHA1
0fa656e1cf06a0ea20e19a4ddd951f0d0d05dc38

SHA256
c518c547d809de7ccae1259611bcb52d6fa435cff67c910d25c5b961ddc45466

SHA512
70f322596a2ba8e079d39d35a10e771f8269dc08e03713736ba070f6cf34cf9bbcb9ac1065a66ad0a0afb66ad68e000953e593164d8858224ce1aeb4cde5120f

Download Submit