vjw0rm | 8e5146485d183e60079662c903e943a3deaa854d2de07b764811385748381c46

General

Target

ID99827299202.js
Size

29KB
MD5

da2054c4d6c5a5051a82ef276afb3342
SHA1

924772e4c5112c6463bf986377c17b1e6e529642
SHA256

8e5146485d183e60079662c903e943a3deaa854d2de07b764811385748381c46
SHA512

f72c09c604319f97217355469718e544574cb4c4958736e151b72e97a6b4b484096f314c0249476b8c3fd5aa014fbe057e52628672439495d88b7a48f45c9899

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

6 1832 powershell.exe

flow	pid	process
6	1832	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 2 IoCs

Processes:

powershell.exe

pid process

1832 powershell.exe
1832 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 1832 powershell.exe

pid	process
1832	powershell.exe
1832	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1832	powershell.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 1904 wrote to memory of 1832	1904	wscript.exe	powershell.exe
PID 1904 wrote to memory of 1832	1904	wscript.exe	powershell.exe
PID 1904 wrote to memory of 1832	1904	wscript.exe	powershell.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\ID99827299202.js
1⤵
- Drops startup file
- Suspicious use of WriteProcessMemory
PID:1904
- 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:1832

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1832-60-0x0000000000000000-mapping.dmp

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memory/1832-61-0x000007FEFB741000-0x000007FEFB743000-memory.dmp

Filesize
8KB

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memory/1832-62-0x0000000001EE0000-0x0000000001EE1000-memory.dmp

Filesize
4KB

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memory/1832-63-0x000000001ABA0000-0x000000001ABA1000-memory.dmp

Filesize
4KB

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memory/1832-65-0x00000000024E0000-0x00000000024E1000-memory.dmp

Filesize
4KB

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memory/1832-66-0x000000001AA64000-0x000000001AA66000-memory.dmp

Filesize
8KB

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memory/1832-64-0x000000001AA60000-0x000000001AA62000-memory.dmp

Filesize
8KB

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memory/1832-67-0x0000000001DD0000-0x0000000001DD1000-memory.dmp

Filesize
4KB

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memory/1832-68-0x000000001B710000-0x000000001B711000-memory.dmp

Filesize
4KB

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memory/1832-69-0x000000001A9C0000-0x000000001A9C1000-memory.dmp

Filesize
4KB

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Analysis

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