vjw0rm | 1193334169879222af20abdab6784f8c11ca2c52e5a740873d5305478c58d922

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-en-20211014
submitted
30-11-2021 18:38

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General

Target

XQUSOP_Invoice001.js
Size

10KB
MD5

4b2504aac0ee1dc9e446d5f6734de048
SHA1

7bfed647e5a694f71e49723d7f45c094f456affb
SHA256

1193334169879222af20abdab6784f8c11ca2c52e5a740873d5305478c58d922
SHA512

4897a03dcacb2952e50e4651eab5aaf2a0560fde60309fca5c2cc9bdc99ad6c2975557f5b585613638f8c5badd57879de8ba61e41cba4bf32dd9c317078a4766

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Extracted

Family

vjw0rm

http://37.0.10.5:8020

Signatures

Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm
Blocklisted process makes network request 1 IoCs

Processes:

wscript.exe

flow pid process

4 1116 wscript.exe

flow	pid	process
4	1116	wscript.exe

Drops startup file 2 IoCs

Processes:

wscript.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XQUSOP_Invoice001.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XQUSOP_Invoice001.js	wscript.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wscript.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\QHDG14D0RM = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\XQUSOP_Invoice001.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

1952 schtasks.exe

pid	process
1952	schtasks.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 1116 wrote to memory of 1952	1116	wscript.exe	schtasks.exe
PID 1116 wrote to memory of 1952	1116	wscript.exe	schtasks.exe
PID 1116 wrote to memory of 1952	1116	wscript.exe	schtasks.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\XQUSOP_Invoice001.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1116

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\XQUSOP_Invoice001.js
2⤵
- Creates scheduled task(s)
PID:1952

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/1952-55-0x0000000000000000-mapping.dmp

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