vjw0rm | ecb06a64c672927554eeb66d6b0552a147e35eb85a30dadf28d4a2f92d8cb45d

General

Target

#W0091.js
Size

12KB
MD5

d9cf0592d6515534cb8efa5b63cfae5b
SHA1

93764956ad2a38d3f70dde3ac0410b367bb8a92b
SHA256

ecb06a64c672927554eeb66d6b0552a147e35eb85a30dadf28d4a2f92d8cb45d
SHA512

e739a973e401bd3f96721a18fa1dbb5827e63365c4dacc46c7017adc0f6c93cc82b1c0d9fa71726b8e77b6fe1bdad4863d7ba2b4b71741fd001ce912557673f3

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 17 IoCs

Processes:

wscript.exewscript.exeWScript.exe

flow	pid	process
6	1304	wscript.exe
9	1784	wscript.exe
11	1784	wscript.exe
12	1784	wscript.exe
13	1784	wscript.exe
15	1784	wscript.exe
16	1784	wscript.exe
17	1784	wscript.exe
19	1784	wscript.exe
21	1028	WScript.exe
22	1784	wscript.exe
23	1784	wscript.exe
25	1784	wscript.exe
27	1784	wscript.exe
29	1784	wscript.exe
32	1784	wscript.exe
34	1784	wscript.exe

Drops startup file 6 IoCs

Processes:

wscript.exeWScript.exewscript.exeWScript.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\#W0091.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\#W0091.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Z23K20ZB7L.js	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Z23K20ZB7L.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\RX7V5HA0F8.js	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\RX7V5HA0F8.js	WScript.exe

Adds Run key to start application 2 TTPs 12 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

WScript.exewscript.exeWScript.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\Z23K20ZB7L = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\Z23K20ZB7L.js\""	WScript.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\software\microsoft\windows\currentversion\run	wscript.exe
Key created	\REGISTRY\MACHINE\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\GF5EHB4I0U = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\RX7V5HA0F8.js\""	WScript.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run	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\VXBM5F7PI1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\#W0091.js\""	wscript.exe
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	WScript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Z23K20ZB7L = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\Z23K20ZB7L.js\""	WScript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\Z23K20ZB7L = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\Z23K20ZB7L.js\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Z23K20ZB7L = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\Z23K20ZB7L.js\""	wscript.exe

Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

8 ip-api.com
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 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exeschtasks.exe

pid process

1132 schtasks.exe
820 schtasks.exe

flow	ioc
8	ip-api.com

pid	process
1132	schtasks.exe
820	schtasks.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

wscript.exeWScript.exeWScript.exe

description	pid	process	target process
PID 1304 wrote to memory of 1132	1304	wscript.exe	schtasks.exe
PID 1304 wrote to memory of 1132	1304	wscript.exe	schtasks.exe
PID 1304 wrote to memory of 1132	1304	wscript.exe	schtasks.exe
PID 1304 wrote to memory of 584	1304	wscript.exe	WScript.exe
PID 1304 wrote to memory of 584	1304	wscript.exe	WScript.exe
PID 1304 wrote to memory of 584	1304	wscript.exe	WScript.exe
PID 584 wrote to memory of 1784	584	WScript.exe	wscript.exe
PID 584 wrote to memory of 1784	584	WScript.exe	wscript.exe
PID 584 wrote to memory of 1784	584	WScript.exe	wscript.exe
PID 1304 wrote to memory of 1028	1304	wscript.exe	WScript.exe
PID 1304 wrote to memory of 1028	1304	wscript.exe	WScript.exe
PID 1304 wrote to memory of 1028	1304	wscript.exe	WScript.exe
PID 1028 wrote to memory of 820	1028	WScript.exe	schtasks.exe
PID 1028 wrote to memory of 820	1028	WScript.exe	schtasks.exe
PID 1028 wrote to memory of 820	1028	WScript.exe	schtasks.exe
PID 1304 wrote to memory of 1492	1304	wscript.exe	WScript.exe
PID 1304 wrote to memory of 1492	1304	wscript.exe	WScript.exe
PID 1304 wrote to memory of 1492	1304	wscript.exe	WScript.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\#W0091.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1304

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\#W0091.js
2⤵
- Creates scheduled task(s)
PID:1132

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Z23K20ZB7L.js"
2⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:584

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\Z23K20ZB7L.js"
3⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:1784

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\RX7V5HA0F8.js"
2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1028

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\RX7V5HA0F8.js
3⤵
- Creates scheduled task(s)
PID:820

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\VMGOLB27GG.js"
2⤵
PID:1492

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\RX7V5HA0F8.js
MD5
737ab81779d546b3ccc019569acb0269

SHA1
d746edccdfb5ba9f357ab6a6281c1c09c25b5912

SHA256
81f1d78c95edb2952a13f5ec068a3b30be04c4e128c6348bc07439a4f4fdd82c

SHA512
961b5f3f1913595352914bd159c34d3767b96494a5be211cd69dbe64f921b29a12321498298ee0c93e3b2c85a443c0fd9b4593dc73fe3266e8517e17e5bfa951

Download Submit
C:\Users\Admin\AppData\Local\Temp\VMGOLB27GG.js
MD5
737ab81779d546b3ccc019569acb0269

SHA1
d746edccdfb5ba9f357ab6a6281c1c09c25b5912

SHA256
81f1d78c95edb2952a13f5ec068a3b30be04c4e128c6348bc07439a4f4fdd82c

SHA512
961b5f3f1913595352914bd159c34d3767b96494a5be211cd69dbe64f921b29a12321498298ee0c93e3b2c85a443c0fd9b4593dc73fe3266e8517e17e5bfa951

Download Submit
C:\Users\Admin\AppData\Local\Temp\Z23K20ZB7L.js
MD5
2471491441a6ab34e7647dca6014d354

SHA1
be879fe6e18938b59642490e53030f4d457d3f1a

SHA256
34f15ec739df72f5ac245db3fff11ea56407e95b94e24bbb820d7999032866d8

SHA512
7f5991b29e091dfcea4b0924f4736e3619e4f9fcc99f66ae18592ba9981ec228f9081a3e9fa86e8d8ba9c93f31ac46394b3cd723679bad8715f31013efe0f7fb

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Z23K20ZB7L.js
MD5
2471491441a6ab34e7647dca6014d354

SHA1
be879fe6e18938b59642490e53030f4d457d3f1a

SHA256
34f15ec739df72f5ac245db3fff11ea56407e95b94e24bbb820d7999032866d8

SHA512
7f5991b29e091dfcea4b0924f4736e3619e4f9fcc99f66ae18592ba9981ec228f9081a3e9fa86e8d8ba9c93f31ac46394b3cd723679bad8715f31013efe0f7fb

Download Submit
C:\Users\Admin\AppData\Roaming\Z23K20ZB7L.js
MD5
2471491441a6ab34e7647dca6014d354

SHA1
be879fe6e18938b59642490e53030f4d457d3f1a

SHA256
34f15ec739df72f5ac245db3fff11ea56407e95b94e24bbb820d7999032866d8

SHA512
7f5991b29e091dfcea4b0924f4736e3619e4f9fcc99f66ae18592ba9981ec228f9081a3e9fa86e8d8ba9c93f31ac46394b3cd723679bad8715f31013efe0f7fb

Download Submit
memory/584-61-0x0000000000000000-mapping.dmp

Download
memory/820-68-0x0000000000000000-mapping.dmp

Download
memory/1028-66-0x0000000000000000-mapping.dmp

Download
memory/1132-60-0x0000000000000000-mapping.dmp

Download
memory/1492-69-0x0000000000000000-mapping.dmp

Download
memory/1784-63-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads