vjw0rm | 24819fecd0dbc69d5f646ca085ac76ddd5229f1762d8bb7938c1244e880e075a

General

Target

ID88910662802.js
Size

29KB
MD5

222e7ad19fb35b7108429b6040c3bff6
SHA1

a38b37964a19cb6fdcfd5110fb415f8d1ed943b5
SHA256

24819fecd0dbc69d5f646ca085ac76ddd5229f1762d8bb7938c1244e880e075a
SHA512

7a75ac4221734b01482638120e27ff5bff338a04820ad8fafaf246e898387fca956c73a17aca68d13c8900ebceb44db011f9536ecb3dbfa818f965c10ec8e76c

Score

10^/10

vjw0rm trojan worm

Malware Config

Signatures

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

Processes:

powershell.exe

flow pid process

9 4044 powershell.exe

flow	pid	process
9	4044	powershell.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\WindowsSystemUpdate.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\WindowsSystemUpdate.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
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

powershell.exe

pid process

4044 powershell.exe
4044 powershell.exe
4044 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 4044 powershell.exe

pid	process
4044	powershell.exe
4044	powershell.exe
4044	powershell.exe

description	pid	process
Token: SeDebugPrivilege	4044	powershell.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 3980 wrote to memory of 4044	3980	wscript.exe	powershell.exe
PID 3980 wrote to memory of 4044	3980	wscript.exe	powershell.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\ID88910662802.js
1⤵
- Drops startup file
- Suspicious use of WriteProcessMemory
PID:3980

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy rEmOtEsIgNeD -Command Invoke-Expression 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2⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4044

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/4044-114-0x0000000000000000-mapping.dmp

Download
memory/4044-120-0x00000228EAE40000-0x00000228EAE41000-memory.dmp

Filesize
4KB

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memory/4044-123-0x00000228EA470000-0x00000228EA472000-memory.dmp

Filesize
8KB

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memory/4044-124-0x00000228EA473000-0x00000228EA475000-memory.dmp

Filesize
8KB

Download
memory/4044-125-0x00000228EB1F0000-0x00000228EB1F1000-memory.dmp

Filesize
4KB

Download
memory/4044-158-0x00000228EA476000-0x00000228EA478000-memory.dmp

Filesize
8KB

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Analysis

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