vjw0rm | ef941e9a12dd57020e8c110e4978fb953b3d41f482f650184980318676fd0408

General

Target

ef941e9a12dd57020e8c110e4978fb953b3d41f482f650184980318676fd0408.js
Size

19KB
MD5

136475f8c1a1c7f23d87ea255926df15
SHA1

a2f0c5d389116df32e96c5e03210c370ea04da09
SHA256

ef941e9a12dd57020e8c110e4978fb953b3d41f482f650184980318676fd0408
SHA512

577ea90c902e95dd8ce1bf8227fad2439023d52733c57ccf3d1fe20e21c19b14529f1e23e75ef756b28c0c83d03c1a0a0e09ab5d04208a019647c15a2f5b070e

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 2 IoCs

Processes:

wscript.exewscript.exe

flow pid process

8 396 wscript.exe
10 3196 wscript.exe

flow	pid	process
8	396	wscript.exe
10	3196	wscript.exe

Drops startup file 4 IoCs

Processes:

wscript.exewscript.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\HDOoLbqFXE.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\HDOoLbqFXE.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ef941e9a12dd57020e8c110e4978fb953b3d41f482f650184980318676fd0408.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ef941e9a12dd57020e8c110e4978fb953b3d41f482f650184980318676fd0408.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
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\4UXUFTLXXY = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\ef941e9a12dd57020e8c110e4978fb953b3d41f482f650184980318676fd0408.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\B02N3ZE1UL = "\"C:\\Users\\Admin\\AppData\\Roaming\\HDOoLbqFXE.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run	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

2880 schtasks.exe

pid	process
2880	schtasks.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 396 wrote to memory of 3196	396	wscript.exe	wscript.exe
PID 396 wrote to memory of 3196	396	wscript.exe	wscript.exe
PID 396 wrote to memory of 2880	396	wscript.exe	schtasks.exe
PID 396 wrote to memory of 2880	396	wscript.exe	schtasks.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\ef941e9a12dd57020e8c110e4978fb953b3d41f482f650184980318676fd0408.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:396
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\HDOoLbqFXE.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Adds Run key to start application
  PID:3196
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\ef941e9a12dd57020e8c110e4978fb953b3d41f482f650184980318676fd0408.js
  2⤵
  - Creates scheduled task(s)
  PID:2880

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\HDOoLbqFXE.js

MD5
ceeeec8799d66c2d6b0b63cf3fb7d639

SHA1
46126751e39598977890ddd9bfdff6249003e03e

SHA256
8f8adf65125e8492b2af0ad5953214880aabb6f8718a9bed0d3723507c360701

SHA512
fde12c110bbac932aad37e859ce43e2299def8555fe85e42155d34198fccf8038b459217b183ea223dadc6db7e715a14a7a743b7e85e6ae22844dc1a86f117e1

Download Submit
memory/2880-116-0x0000000000000000-mapping.dmp

Download
memory/3196-114-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads