vjw0rm | 9ef3d03530f8deac1764f12fe8260303fe8a5838e2858999674bf08cf90369e9

General

Target

607e7ae85b834c95db9a85d479751580.js
Size

207KB
MD5

607e7ae85b834c95db9a85d479751580
SHA1

185d69ebb99a415f47c83936c3a4ae3da12f7aa6
SHA256

9ef3d03530f8deac1764f12fe8260303fe8a5838e2858999674bf08cf90369e9
SHA512

65c5b4c95a5fe4ca6470a5abd6ef4de2f77fc2ed0638f914227190939d92378109216ea772ebf685858550c9d10586a6660642ae30ea26d3c8833e2ea77e2825
SSDEEP

3072:dLmh3QXXwTHXGsE8UX7vyzdiTqhtU3Pe5lawoZt5btCbYfjtqatzhILnGfw/:UV5H2s1UXWzdiTmU26woT5RJqcIX

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-1-5-21-996941297-2279405024-2328152752-1000\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\CDImfLjZVm.js	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\CDImfLjZVm.js	WScript.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2864	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-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\CDImfLjZVm.js\""	WScript.exe

Drops file in Program Files directory 12 IoCs

description	ioc	Process
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\server\dll\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\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\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\symbols\dll\ntdll.pdb	javaw.exe
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\server\symbols\dll\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\dll\ntdll.pdb	javaw.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-1-5-21-996941297-2279405024-2328152752-1000_Classes\Local Settings	wscript.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 368 wrote to memory of 4384	368	wscript.exe	88
PID 368 wrote to memory of 4384	368	wscript.exe	88
PID 368 wrote to memory of 4476	368	wscript.exe	89
PID 368 wrote to memory of 4476	368	wscript.exe	89
PID 4476 wrote to memory of 2864	4476	javaw.exe	91
PID 4476 wrote to memory of 2864	4476	javaw.exe	91

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\607e7ae85b834c95db9a85d479751580.js
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:368
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\CDImfLjZVm.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:4384
- 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\lfchjduq.txt"
  2⤵
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:4476
- - 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:2864

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
5aa66ccc0876198b662ced72c65439be

SHA1
0e6563b83953ac2983bd77de591efeb569152046

SHA256
483c5c2fcbd194dd85c77af36b771e45a7a325ad5fbffce54d183d973eefe524

SHA512
2af9500c8b91a90fb5240ad4b7050ff99f3e959a80f8e4baee24c2186b0269aad12f4e2d7e574d1c35ecd38f9362c571b0b514d2b7ad947271a090b2cf947d20

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

Filesize
10KB

MD5
3c42714a2658cc70b45e715b97896d61

SHA1
11bdbbe7fe227bf2b06663c4e840c3db2c09200c

SHA256
13a0e50640c3bcfbe873da3a4a6483aabfd48cac75840e6b6c4991beb4468df1

SHA512
c42cff63543040f6c27d2fd69f2d54d9a69f5674ee842890c657cf1dc674fa5b59aa9d7fc7823a6b984a2930a66287b88f1b7ec87d9ea3bc0ccc1408ec798f5a

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

Filesize
92KB

MD5
2e458a59025b390fbdf7d3717314b507

SHA1
d5a84f501bfa81682ebde5e31a68794140141785

SHA256
6b723bd260b53c68c716ef218c78718d3e99ab4d4238a4bd823fd0cd6ec8007b

SHA512
2b463bc4ef98264560abad47053549c463fc9ee098c97cd60d58c959ba67f4ddf2ca60856f6564802a9f056740fbedbb6bdc829388c136c13b334563465d1f22

Download Submit
memory/4476-11-0x0000014F33450000-0x0000014F34450000-memory.dmp

Filesize
16.0MB

Download
memory/4476-19-0x0000014F31C60000-0x0000014F31C61000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads