vjw0rm | 7953ed1095e83bed7ad65ef426e2119e47bcac5a65d6111aef8576d301df9797

General

Target

js-decoded-1.js
Size

19KB
MD5

38eef142a1b030c810b6f18bc1a6ae7a
SHA1

2d2ffe145c88bf1df437ae37b157f8eda7d9265e
SHA256

7953ed1095e83bed7ad65ef426e2119e47bcac5a65d6111aef8576d301df9797
SHA512

34c02223bae60c789d6417e541008de777f3a86aad8ff4ebe010ca6cc693f95e3b5641511832ea043efe5b6d3f71e14c78c36146a91d9892f973c10602c49ef8

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

Processes:

wscript.exewscript.exe

flow	pid	process
11	3760	wscript.exe
12	3960	wscript.exe
16	3960	wscript.exe
17	3760	wscript.exe
22	3960	wscript.exe
23	3760	wscript.exe
27	3960	wscript.exe
28	3760	wscript.exe
35	3960	wscript.exe
36	3760	wscript.exe
39	3960	wscript.exe
40	3760	wscript.exe
43	3960	wscript.exe
44	3760	wscript.exe
45	3960	wscript.exe
46	3760	wscript.exe
49	3960	wscript.exe
50	3760	wscript.exe
51	3960	wscript.exe
52	3760	wscript.exe
53	3960	wscript.exe
54	3760	wscript.exe
55	3960	wscript.exe
56	3760	wscript.exe
57	3960	wscript.exe
58	3760	wscript.exe
59	3960	wscript.exe
60	3760	wscript.exe
61	3960	wscript.exe
62	3760	wscript.exe
63	3960	wscript.exe
64	3760	wscript.exe
65	3960	wscript.exe
66	3760	wscript.exe
67	3960	wscript.exe
68	3760	wscript.exe
69	3960	wscript.exe

Drops startup file 3 IoCs

Processes:

wscript.exewscript.exe

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

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wscript.exewscript.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\RRXVpOavDl.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Windows\CurrentVersion\Run\0WENLYRIM2 = "\"C:\\Users\\Admin\\AppData\\Roaming\\js-decoded-1.js\""	wscript.exe

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

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
T1053

Processes:

schtasks.exe

pid process

512 schtasks.exe

pid	process
512	schtasks.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 3760 wrote to memory of 3960	3760	wscript.exe	wscript.exe
PID 3760 wrote to memory of 3960	3760	wscript.exe	wscript.exe
PID 3760 wrote to memory of 512	3760	wscript.exe	schtasks.exe
PID 3760 wrote to memory of 512	3760	wscript.exe	schtasks.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\js-decoded-1.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3760
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\RRXVpOavDl.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Adds Run key to start application
  PID:3960
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\js-decoded-1.js
  2⤵
  - Creates scheduled task(s)
  PID:512

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

MD5
dfdc9c79b321d87cc8dcbb361a69ecb5

SHA1
7d430e4ef2ecaf4db5e42789a56b2ea4e280b35c

SHA256
f99f5c043620cf790857f1a2c8906a9323c57a5b6fa6a59acd571eb1bfc68328

SHA512
4856afcf1953a9056253af8baa39b6d9283aa17153903c3c671785e51ac2ccf7aa104fac5e4c2fb4098d1f1ed6a9c9212cfe2ebbbbe6f46fc53ebec96537705f

Download Submit
memory/512-120-0x0000000000000000-mapping.dmp

Download
memory/3960-118-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads