vjw0rm | 1f9052ca261408f12934901fd1a8dd843138a8a7605a5aa1515374fa473b6153

General

Target

PO_00124563.js
Size

3KB
MD5

84f3ed3670d569603a669686ec959f29
SHA1

2ffc746cff0df8052944f69e57ce28badb8f8549
SHA256

8f75fa05aebed182cf2bf13cfe8b26720a76d1328fcfeb6eb2b25d65d0f3f6a2
SHA512

61245362e1a6840501d8c3859171cc32bf80784b387d0965e80b85cd72a56b73276324c6565298fd881c9a0605645d30a23aaface0d5191941daa0a4f636b423

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 3 IoCs

Processes:

wscript.exeWScript.execscript.exe

flow pid process

7 652 wscript.exe
23 3544 WScript.exe
24 1496 cscript.exe

flow	pid	process
7	652	wscript.exe
23	3544	WScript.exe
24	1496	cscript.exe

Drops startup file 4 IoCs

Processes:

cscript.exewscript.exeWScript.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PO_00124563.js	cscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PO_00124563.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PO_00124563.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PO_00124563.js	WScript.exe

Adds Run key to start application 2 TTPs 6 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wscript.exeWScript.execscript.exe

description	ioc	process
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\V3MC6BTMP1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\PO_00124563.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\V3MC6BTMP1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\PO_00124563.js\""	WScript.exe
Key created	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run	cscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\V3MC6BTMP1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\PO_00124563.js\""	cscript.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 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exeschtasks.exeschtasks.exe

pid process

2388 schtasks.exe
1640 schtasks.exe
3568 schtasks.exe
Modifies registry class 1 IoCs

Processes:

cmd.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\Local Settings cmd.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

powershell.exe

pid process

4084 powershell.exe
4084 powershell.exe
4084 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 4084 powershell.exe

pid	process
2388	schtasks.exe
1640	schtasks.exe
3568	schtasks.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\Local Settings	cmd.exe

pid	process
4084	powershell.exe
4084	powershell.exe
4084	powershell.exe

description	pid	process
Token: SeDebugPrivilege	4084	powershell.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

wscript.exepowershell.execmd.exeWScript.execscript.exe

description	pid	process	target process
PID 652 wrote to memory of 3568	652	wscript.exe	schtasks.exe
PID 652 wrote to memory of 3568	652	wscript.exe	schtasks.exe
PID 4084 wrote to memory of 512	4084	powershell.exe	cmd.exe
PID 4084 wrote to memory of 512	4084	powershell.exe	cmd.exe
PID 512 wrote to memory of 3544	512	cmd.exe	WScript.exe
PID 512 wrote to memory of 3544	512	cmd.exe	WScript.exe
PID 3544 wrote to memory of 2388	3544	WScript.exe	schtasks.exe
PID 3544 wrote to memory of 2388	3544	WScript.exe	schtasks.exe
PID 512 wrote to memory of 1496	512	cmd.exe	cscript.exe
PID 512 wrote to memory of 1496	512	cmd.exe	cscript.exe
PID 1496 wrote to memory of 1640	1496	cscript.exe	schtasks.exe
PID 1496 wrote to memory of 1640	1496	cscript.exe	schtasks.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\PO_00124563.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:652

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\PO_00124563.js
2⤵
- Creates scheduled task(s)
PID:3568

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4084

C:\Windows\system32\cmd.exe
"C:\Windows\system32\cmd.exe"
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:512

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\PO_00124563.js"
3⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3544

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\PO_00124563.js
4⤵
- Creates scheduled task(s)
PID:2388

C:\Windows\system32\cscript.exe
cscript PO_00124563.js
3⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1496

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\PO_00124563.js
4⤵
- Creates scheduled task(s)
PID:1640

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PO_00124563.js
MD5
84f3ed3670d569603a669686ec959f29

SHA1
2ffc746cff0df8052944f69e57ce28badb8f8549

SHA256
8f75fa05aebed182cf2bf13cfe8b26720a76d1328fcfeb6eb2b25d65d0f3f6a2

SHA512
61245362e1a6840501d8c3859171cc32bf80784b387d0965e80b85cd72a56b73276324c6565298fd881c9a0605645d30a23aaface0d5191941daa0a4f636b423

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PO_00124563.js
MD5
84f3ed3670d569603a669686ec959f29

SHA1
2ffc746cff0df8052944f69e57ce28badb8f8549

SHA256
8f75fa05aebed182cf2bf13cfe8b26720a76d1328fcfeb6eb2b25d65d0f3f6a2

SHA512
61245362e1a6840501d8c3859171cc32bf80784b387d0965e80b85cd72a56b73276324c6565298fd881c9a0605645d30a23aaface0d5191941daa0a4f636b423

Download Submit
memory/512-167-0x0000000000000000-mapping.dmp

Download
memory/1496-171-0x0000000000000000-mapping.dmp

Download
memory/1640-172-0x0000000000000000-mapping.dmp

Download
memory/2388-169-0x0000000000000000-mapping.dmp

Download
memory/3544-168-0x0000000000000000-mapping.dmp

Download
memory/3568-114-0x0000000000000000-mapping.dmp

Download
memory/4084-150-0x00000272C74D0000-0x00000272C74D1000-memory.dmp

Filesize
4KB

Download
memory/4084-151-0x00000272C4D00000-0x00000272C4D02000-memory.dmp

Filesize
8KB

Download
memory/4084-152-0x00000272C4D03000-0x00000272C4D05000-memory.dmp

Filesize
8KB

Download
memory/4084-139-0x00000272C72B0000-0x00000272C72B1000-memory.dmp

Filesize
4KB

Download
memory/4084-120-0x00000272C6E10000-0x00000272C6E11000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads