vjw0rm | fe0c71a9cc20af0f39f8f779c0383fa38a64157181306018062376b7374c11f1

General

Target

SKM_C258201001130020005057.js
Size

27KB
MD5

511f6a9de220c99adf7e2e03a4e48886
SHA1

7e3c217e99f7bdd44c2e760feaf413cb3a7736fb
SHA256

2a830c7923253031907c1dd34c4a9532c1f53e8fe7f6a3c8359a0e93ef4b216e
SHA512

8fe6e672872a208e9cac950856c1afa4cdb7fc496cc67531a98322fed1f1b83b1b7b5ce7f5a702b56197c853f0bf09deb5e1958b4369ca01cb42c401fdb4c090

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

Processes:

wscript.exewscript.exe

flow	pid	process
10	1688	wscript.exe
11	1820	wscript.exe
12	1820	wscript.exe
13	1820	wscript.exe
16	1820	wscript.exe
17	1820	wscript.exe
19	1820	wscript.exe
21	1820	wscript.exe
23	1820	wscript.exe
24	1820	wscript.exe
26	1820	wscript.exe
28	1820	wscript.exe
29	1820	wscript.exe
32	1820	wscript.exe
33	1820	wscript.exe
34	1820	wscript.exe
37	1820	wscript.exe
38	1820	wscript.exe
39	1820	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\SKM_C258201001130020005057.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PhOPzJgSgd.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PhOPzJgSgd.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-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\0HKX5ALWLG = "\"C:\\Users\\Admin\\AppData\\Roaming\\PhOPzJgSgd.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\3XFVC1CQKY = "\"C:\\Users\\Admin\\AppData\\Roaming\\SKM_C258201001130020005057.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

368 schtasks.exe

pid	process
368	schtasks.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 1688 wrote to memory of 1820	1688	wscript.exe	wscript.exe
PID 1688 wrote to memory of 1820	1688	wscript.exe	wscript.exe
PID 1688 wrote to memory of 1820	1688	wscript.exe	wscript.exe
PID 1688 wrote to memory of 368	1688	wscript.exe	schtasks.exe
PID 1688 wrote to memory of 368	1688	wscript.exe	schtasks.exe
PID 1688 wrote to memory of 368	1688	wscript.exe	schtasks.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\SKM_C258201001130020005057.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1688

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\PhOPzJgSgd.js"
2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:1820

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\SKM_C258201001130020005057.js
2⤵
- Creates scheduled task(s)
PID:368

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\PhOPzJgSgd.js
MD5
398ea7fcde0fe6de66a488b8d0df37b3

SHA1
847de03f765f337624423386aa124e0910c22883

SHA256
9bfbb43d7401e73169d525c90feb26e4d968a301cb7f6045535c8025f780d731

SHA512
bc9a0491ea5c9f5aadb63e7a8811acebca4afeb9c1d76db985d2c7732c36ffe7e1fbb0cff970cabf51bc20db752cef847712b4147e8d0480014d1f7d3bb08111

Download Submit
memory/368-62-0x0000000000000000-mapping.dmp

Download
memory/1820-0-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads