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 35 IoCs

Processes:

wscript.exewscript.exe

flow	pid	process
8	1588	wscript.exe
9	376	wscript.exe
10	376	wscript.exe
12	1588	wscript.exe
14	376	wscript.exe
15	1588	wscript.exe
18	376	wscript.exe
20	1588	wscript.exe
21	376	wscript.exe
23	1588	wscript.exe
25	376	wscript.exe
26	1588	wscript.exe
29	376	wscript.exe
31	1588	wscript.exe
33	376	wscript.exe
34	1588	wscript.exe
36	376	wscript.exe
38	1588	wscript.exe
40	376	wscript.exe
42	1588	wscript.exe
43	376	wscript.exe
45	1588	wscript.exe
46	376	wscript.exe
49	1588	wscript.exe
51	376	wscript.exe
53	1588	wscript.exe
55	376	wscript.exe
56	1588	wscript.exe
57	376	wscript.exe
60	1588	wscript.exe
62	376	wscript.exe
64	1588	wscript.exe
66	376	wscript.exe
67	1588	wscript.exe
69	376	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-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\RRXVpOavDl.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\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

1172 schtasks.exe

pid	process
1172	schtasks.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 1588 wrote to memory of 376	1588	wscript.exe	wscript.exe
PID 1588 wrote to memory of 376	1588	wscript.exe	wscript.exe
PID 1588 wrote to memory of 376	1588	wscript.exe	wscript.exe
PID 1588 wrote to memory of 1172	1588	wscript.exe	schtasks.exe
PID 1588 wrote to memory of 1172	1588	wscript.exe	schtasks.exe
PID 1588 wrote to memory of 1172	1588	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:1588

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:376

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:1172

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/376-56-0x0000000000000000-mapping.dmp

Download
memory/1172-58-0x0000000000000000-mapping.dmp

Download
memory/1588-55-0x000007FEFBF81000-0x000007FEFBF83000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads