vjw0rm | f19462db16c63e8c26095f8ee024340649e0b2cb26a9ba9d08691b6d01e4f2be

Analysis

max time kernel
149s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
11/03/2024, 05:50

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General

Target

c000b245272ad81b74958689e4b3352e.js
Size

166KB
MD5

c000b245272ad81b74958689e4b3352e
SHA1

ce74042c88b852c6a5b00186096f0ce42afc38b6
SHA256

f19462db16c63e8c26095f8ee024340649e0b2cb26a9ba9d08691b6d01e4f2be
SHA512

f9b3f811a4be2bee356d9265d15a20a00d41b4a5933d8ab5adcf683ce23cab0ac0b6a7cbdbc97abb509385082aa038d11f1b4f8e502f61e6a42535bbd4df155c
SSDEEP

3072:Z6EsOoG2OGyjn37WIMnhHXmhRZkIQQZ9ophBCvD9hsbVhjv5:PsOotKeIMnimk+EIb5

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Signatures

Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 4 IoCs

pid	Process
4800	New Client.exe
1704	New Client.exe
2284	New Client.exe
4972	New Client.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\YgrKtkfSUZ.js\""	wscript.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 4 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
3492	schtasks.exe
544	schtasks.exe
3272	schtasks.exe
3988	schtasks.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	4800	New Client.exe
Token: 33	4800	New Client.exe
Token: SeIncBasePriorityPrivilege	4800	New Client.exe
Token: 33	4800	New Client.exe
Token: SeIncBasePriorityPrivilege	4800	New Client.exe
Token: 33	4800	New Client.exe
Token: SeIncBasePriorityPrivilege	4800	New Client.exe
Token: 33	4800	New Client.exe
Token: SeIncBasePriorityPrivilege	4800	New Client.exe
Token: 33	4800	New Client.exe
Token: SeIncBasePriorityPrivilege	4800	New Client.exe
Token: 33	4800	New Client.exe
Token: SeIncBasePriorityPrivilege	4800	New Client.exe
Token: 33	4800	New Client.exe
Token: SeIncBasePriorityPrivilege	4800	New Client.exe
Token: 33	4800	New Client.exe
Token: SeIncBasePriorityPrivilege	4800	New Client.exe
Token: 33	4800	New Client.exe
Token: SeIncBasePriorityPrivilege	4800	New Client.exe
Token: 33	4800	New Client.exe
Token: SeIncBasePriorityPrivilege	4800	New Client.exe
Token: 33	4800	New Client.exe
Token: SeIncBasePriorityPrivilege	4800	New Client.exe
Token: 33	4800	New Client.exe
Token: SeIncBasePriorityPrivilege	4800	New Client.exe
Token: 33	4800	New Client.exe
Token: SeIncBasePriorityPrivilege	4800	New Client.exe
Token: 33	4800	New Client.exe
Token: SeIncBasePriorityPrivilege	4800	New Client.exe
Token: 33	4800	New Client.exe
Token: SeIncBasePriorityPrivilege	4800	New Client.exe
Token: 33	4800	New Client.exe
Token: SeIncBasePriorityPrivilege	4800	New Client.exe
Token: 33	4800	New Client.exe
Token: SeIncBasePriorityPrivilege	4800	New Client.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 4752 wrote to memory of 1632	4752	wscript.exe	90
PID 4752 wrote to memory of 1632	4752	wscript.exe	90
PID 4752 wrote to memory of 4800	4752	wscript.exe	91
PID 4752 wrote to memory of 4800	4752	wscript.exe	91
PID 4752 wrote to memory of 4800	4752	wscript.exe	91
PID 4800 wrote to memory of 4264	4800	New Client.exe	96
PID 4800 wrote to memory of 4264	4800	New Client.exe	96
PID 4800 wrote to memory of 4264	4800	New Client.exe	96
PID 4800 wrote to memory of 3272	4800	New Client.exe	98
PID 4800 wrote to memory of 3272	4800	New Client.exe	98
PID 4800 wrote to memory of 3272	4800	New Client.exe	98
PID 1704 wrote to memory of 1620	1704	New Client.exe	107
PID 1704 wrote to memory of 1620	1704	New Client.exe	107
PID 1704 wrote to memory of 1620	1704	New Client.exe	107
PID 1704 wrote to memory of 3988	1704	New Client.exe	108
PID 1704 wrote to memory of 3988	1704	New Client.exe	108
PID 1704 wrote to memory of 3988	1704	New Client.exe	108
PID 2284 wrote to memory of 4176	2284	New Client.exe	124
PID 2284 wrote to memory of 4176	2284	New Client.exe	124
PID 2284 wrote to memory of 4176	2284	New Client.exe	124
PID 2284 wrote to memory of 3492	2284	New Client.exe	126
PID 2284 wrote to memory of 3492	2284	New Client.exe	126
PID 2284 wrote to memory of 3492	2284	New Client.exe	126
PID 4972 wrote to memory of 1572	4972	New Client.exe	129
PID 4972 wrote to memory of 1572	4972	New Client.exe	129
PID 4972 wrote to memory of 1572	4972	New Client.exe	129
PID 4972 wrote to memory of 544	4972	New Client.exe	131
PID 4972 wrote to memory of 544	4972	New Client.exe	131
PID 4972 wrote to memory of 544	4972	New Client.exe	131

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\c000b245272ad81b74958689e4b3352e.js
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4752
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\YgrKtkfSUZ.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:1632
- C:\Users\Admin\AppData\Local\Temp\New Client.exe
  "C:\Users\Admin\AppData\Local\Temp\New Client.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4800
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /Delete /tn NYAN /F
    3⤵
    PID:4264
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /tn NYAN /tr "C:\Users\Admin\AppData\Local\Temp\New Client.exe" /sc minute /mo 1
    3⤵
    - Creates scheduled task(s)
    PID:3272

C:\Users\Admin\AppData\Local\Temp\New Client.exe
"C:\Users\Admin\AppData\Local\Temp\New Client.exe"
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1704
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /Delete /tn NYAN /F
  2⤵
  PID:1620
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /tn NYAN /tr "C:\Users\Admin\AppData\Local\Temp\New Client.exe" /sc minute /mo 1
  2⤵
  - Creates scheduled task(s)
  PID:3988

C:\Users\Admin\AppData\Local\Temp\New Client.exe
"C:\Users\Admin\AppData\Local\Temp\New Client.exe"
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2284
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /Delete /tn NYAN /F
  2⤵
  PID:4176
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /tn NYAN /tr "C:\Users\Admin\AppData\Local\Temp\New Client.exe" /sc minute /mo 1
  2⤵
  - Creates scheduled task(s)
  PID:3492

C:\Users\Admin\AppData\Local\Temp\New Client.exe
"C:\Users\Admin\AppData\Local\Temp\New Client.exe"
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4972
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /Delete /tn NYAN /F
  2⤵
  PID:1572
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /tn NYAN /tr "C:\Users\Admin\AppData\Local\Temp\New Client.exe" /sc minute /mo 1
  2⤵
  - Creates scheduled task(s)
  PID:544

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\New Client.exe.log

Filesize
588B

MD5
80be65da858b28232bbb0f926fafcbcc

SHA1
f7647b8969e6642939b0d0b249db50a191bead49

SHA256
f147961fcb74f2cc8d8d1528bc77db6671ade4cd61b7a71b01c58c184364c6fc

SHA512
7795a9aa9f5702ca35dcf4900e2dac0994bd1a5a14cd0c8a25388110f47b1ce8f8032099067668146e8af56bf5966a3c854ccc1ddf586fe9ae22e9836880549c

Download Submit
C:\Users\Admin\AppData\Local\Temp\New Client.exe

Filesize
78KB

MD5
4c1c9fdf28215ae2f0f681349b66bbff

SHA1
8ab23d0ee7a361c8f29622fa9ba05f6644e24e9a

SHA256
50842fb63d2308152a3d6c25bf5c45b2a71906193e299975401e8cc5189abd7a

SHA512
f0415187e7f7dc15546ea4bc8e6c53281aa407df064a2d73e0360e796caf807430d7ab565ba842e8d1c58c1bc35eefffcd868042c65357906a625b92064e96c5

Download Submit
C:\Users\Admin\AppData\Roaming\YgrKtkfSUZ.js

Filesize
10KB

MD5
4e1188211bc0a1f728e5a97cf47a7105

SHA1
740914054d0824fbacf494855eb9121355a49740

SHA256
ada3ac15b6fd893f1f8b1a4ad1f6d4cbc86c566c0d5a639c4dda15f4727f2cee

SHA512
b37d9c26c44b45e89a4732439480bf6d09e292fb85ef054a4a591cb7228eeef0f8595aeaf12824771c033297ea218996d6e4c9006972c15a58d02b89365b2a14

Download Submit
memory/1704-18-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/1704-21-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/1704-19-0x00000000014F0000-0x0000000001500000-memory.dmp

Filesize
64KB

Download
memory/2284-24-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/2284-25-0x0000000001500000-0x0000000001510000-memory.dmp

Filesize
64KB

Download
memory/2284-26-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/2284-27-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/4800-16-0x0000000001550000-0x0000000001560000-memory.dmp

Filesize
64KB

Download
memory/4800-15-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/4800-14-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/4800-13-0x0000000001550000-0x0000000001560000-memory.dmp

Filesize
64KB

Download
memory/4800-12-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/4800-11-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/4972-29-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/4972-30-0x0000000001920000-0x0000000001930000-memory.dmp

Filesize
64KB

Download
memory/4972-31-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads