vjw0rm | 39a2e082897abaaf11cc9e955d4b1dff633be28a0be463b748c3bd6dc6dfd6ec

General

Target

a9b85388aae2c05a662703488dc484b0.js
Size

910KB
MD5

a9b85388aae2c05a662703488dc484b0
SHA1

461f673f7af1f372e42fd4e8e6edbd60ddbb5dc7
SHA256

39a2e082897abaaf11cc9e955d4b1dff633be28a0be463b748c3bd6dc6dfd6ec
SHA512

abd01d08176c3fd6e45407f9222d5b02d60d719ea82366c4431282a1779e28cedeb4923f0c897e8d9df3b3ee3f05d10c509c0e3861119f8a712b9cca809384a7
SSDEEP

12288:eIziPJqueLX4tD3WYFztROhdbmtdPzNiXPLqnqXHBIqRNMeM3VJcSTj/qrqx9W9y:eIeoq3WYZPtdPzE5NWfhqrAIMfCPA

Score

10^/10

vjw0rm discovery 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-1-5-21-2398549320-3657759451-817663969-1000\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\vTTsXwVcli.js	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\vTTsXwVcli.js	WScript.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3484	icacls.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-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\vTTsXwVcli.js\""	WScript.exe

Drops file in Program Files directory 24 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\dll\ntdll.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\symbols\dll\jvm.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\dll\jvm.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\symbols\dll\ntdll.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\dll\ntdll.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\symbols\dll\ntdll.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\ntdll.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\jvm.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\ntdll.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\dll\ntdll.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\dll\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\dll\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\symbols\dll\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\ntdll.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\jvm.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\dll\jvm.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\symbols\dll\ntdll.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\symbols\dll\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\symbols\dll\ntdll.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\symbols\dll\jvm.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\dll\ntdll.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\ntdll.pdb	java.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000_Classes\Local Settings	wscript.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2512	javaw.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1592 wrote to memory of 3748	1592	wscript.exe	92
PID 1592 wrote to memory of 3748	1592	wscript.exe	92
PID 1592 wrote to memory of 2512	1592	wscript.exe	90
PID 1592 wrote to memory of 2512	1592	wscript.exe	90
PID 2512 wrote to memory of 3484	2512	javaw.exe	94
PID 2512 wrote to memory of 3484	2512	javaw.exe	94
PID 2512 wrote to memory of 2924	2512	javaw.exe	96
PID 2512 wrote to memory of 2924	2512	javaw.exe	96

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\a9b85388aae2c05a662703488dc484b0.js
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1592
- C:\Program Files\Java\jre-1.8\bin\javaw.exe
  "C:\Program Files\Java\jre-1.8\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\pyfytqwwit.txt"
  2⤵
  - Drops file in Program Files directory
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2512
- - C:\Windows\system32\icacls.exe
    C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
    3⤵
    - Modifies file permissions
    PID:3484
- - C:\Program Files\Java\jre-1.8\bin\java.exe
    "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar C:\Users\Admin\AppData\Local\Temp\_0.66013614187970587316525621065209896.class
    3⤵
    - Drops file in Program Files directory
    PID:2924
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\vTTsXwVcli.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:3748

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

File and Directory Permissions Modification

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp

Filesize
46B

MD5
138c81d7882c1409ed74891bf4afc8ea

SHA1
f8d026f62fbfcb4f3d71702edd395996a94205a8

SHA256
090b7c28f5985540d18190b1ade2bd1d9e370325a9613229778ab5590488e894

SHA512
ffcf06c36740ba8778a5657735d485c353bc6c872d644cfffc1e37643d5ee92a331ef1a4e2a3a17cd4395ae7647daae8654e5745afb8064a5164476ff01550c0

Download Submit
C:\Users\Admin\AppData\Local\Temp\_0.66013614187970587316525621065209896.class

Filesize
128KB

MD5
4c1bd01b73d68be5a48b977bb4a61948

SHA1
ff07cf5cc64c55f1b4c010e87763087dd9ffb146

SHA256
a4298bd9f17d202dd9cb60ab434bbf2cb0a36d54ff15912a1a2ca7476aef8337

SHA512
b0f1bfd417b5567b4e4c7e26249163e21f5292b4bebd4b84a334e95bfb9ebdfe0e265dd9f35506aae2680839697cd4ad4cf6e35bc248016efd6c3e5346abbe3c

Download Submit
C:\Users\Admin\AppData\Roaming\pyfytqwwit.txt

Filesize
347KB

MD5
d1b31b33fbef7e4cf8e9d2c409b4786f

SHA1
dab9a1434d99d0c4283814c61413dc92af6c550c

SHA256
9997466007ec3eeddd237302f97eeff7cadcb8643cad2e5c739353d76e57dbe3

SHA512
779c0d0b3257328233a538c8909791012da33ab31b813074d3c2149d274d638bb42e41fd5b3fbc3fa0cf3aa2d3b080f51cbf6fc7eb5aec201e087dead7dc10b8

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

Filesize
9KB

MD5
e068ea577e83f36e6f5a3a64bd763648

SHA1
83764893b98e89350c261609b76b0fd812b44630

SHA256
d75a2e8e930b82f2cf2e751b298294f5594d74ff68aa65ca27ff6c1eb46730b6

SHA512
ed0d2fa859b239f84d736dc138a9a7c100cececdf565ed6a2d401ef9f20b526feffee4587eaf93697d9bb7db33f8bc8eb91a66d70b08645b913d1f6edcea47c6

Download Submit
memory/2512-64-0x000001CB6C710000-0x000001CB6D710000-memory.dmp

Filesize
16.0MB

Download
memory/2512-61-0x000001CB6C710000-0x000001CB6D710000-memory.dmp

Filesize
16.0MB

Download
memory/2512-112-0x000001CB6C710000-0x000001CB6D710000-memory.dmp

Filesize
16.0MB

Download
memory/2512-39-0x000001CB6AE90000-0x000001CB6AE91000-memory.dmp

Filesize
4KB

Download
memory/2512-111-0x000001CB6C710000-0x000001CB6D710000-memory.dmp

Filesize
16.0MB

Download
memory/2512-53-0x000001CB6C710000-0x000001CB6D710000-memory.dmp

Filesize
16.0MB

Download
memory/2512-77-0x000001CB6AE90000-0x000001CB6AE91000-memory.dmp

Filesize
4KB

Download
memory/2512-75-0x000001CB6AE90000-0x000001CB6AE91000-memory.dmp

Filesize
4KB

Download
memory/2512-60-0x000001CB6C710000-0x000001CB6D710000-memory.dmp

Filesize
16.0MB

Download
memory/2512-20-0x000001CB6AE90000-0x000001CB6AE91000-memory.dmp

Filesize
4KB

Download
memory/2512-63-0x000001CB6C710000-0x000001CB6D710000-memory.dmp

Filesize
16.0MB

Download
memory/2512-11-0x000001CB6C710000-0x000001CB6D710000-memory.dmp

Filesize
16.0MB

Download
memory/2512-68-0x000001CB6AE90000-0x000001CB6AE91000-memory.dmp

Filesize
4KB

Download
memory/2924-55-0x000001EFA52A0000-0x000001EFA52B0000-memory.dmp

Filesize
64KB

Download
memory/2924-56-0x000001EFA52B0000-0x000001EFA52C0000-memory.dmp

Filesize
64KB

Download
memory/2924-37-0x000001EFA37A0000-0x000001EFA37A1000-memory.dmp

Filesize
4KB

Download
memory/2924-35-0x000001EFA5030000-0x000001EFA6030000-memory.dmp

Filesize
16.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads