vjw0rm | 1d61ac748d5d297ca8fa771d12a1c79626c6e2c217a8a349b4ade54c09ae589b

General

Target

9da6b45d17e4c0ef80df356e1a7e6bdf.js
Size

200KB
MD5

9da6b45d17e4c0ef80df356e1a7e6bdf
SHA1

5bf501a2ce339671a28d1ecea943c5bb817962b6
SHA256

1d61ac748d5d297ca8fa771d12a1c79626c6e2c217a8a349b4ade54c09ae589b
SHA512

f4249a1bc09eff66e058a736cbae688c6f7a56391f0fdaaca0056a94098442761e12022c10870a8a5cac99d6af51daab747244bb4dfbc33a89fef1f74f12a788
SSDEEP

3072:cXYHwujfPHfCjTutr4QMuHNjmvXSG7H+jJbE2bve+5OsF1S4PM:A+f/fCnKr4PcNjmviGEC2bb1H5M

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-1-5-21-1815711207-1844170477-3539718864-1000\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\otOJexNvvn.js	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\otOJexNvvn.js	WScript.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2324	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-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\otOJexNvvn.js\""	WScript.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-1-5-21-1815711207-1844170477-3539718864-1000_Classes\Local Settings	wscript.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2544 wrote to memory of 2228	2544	wscript.exe	91
PID 2544 wrote to memory of 2228	2544	wscript.exe	91
PID 2544 wrote to memory of 4804	2544	wscript.exe	92
PID 2544 wrote to memory of 4804	2544	wscript.exe	92
PID 4804 wrote to memory of 2324	4804	javaw.exe	95
PID 4804 wrote to memory of 2324	4804	javaw.exe	95

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\9da6b45d17e4c0ef80df356e1a7e6bdf.js
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2544
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\otOJexNvvn.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:2228
- 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\trquelilc.txt"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4804
- - 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:2324

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
f4e48f7c93d106a73c01e5fde1ba00f9

SHA1
5abffd481bd53700e05f252abbfa2e50c538539a

SHA256
8265892ee37033bf3e03bdcc0c2cdb0c0d90b0b6c7b3db1939af7fce25b28def

SHA512
1f8ad99341e7760a84e06d001bc2dbd462a6713102d6e7910d3305590f0e01d70c96022a3b42301a8fdb34dca6db8f4bf744daef1410ed846913258c29d7cd07

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

Filesize
9KB

MD5
730e1246285921eac566caa6a0c9b663

SHA1
2e508ef96d92608971061ff76b520f141a049e78

SHA256
aba5bc2432ee098aa4a30e4310ee1a300db7bb28dd4220ebc47f17aed7a17413

SHA512
0524474a34a89b4eafb375567b82229f0551e5aedc5ba8b9475397d395370ec84499ff7bcd1dd0698e5ea7300a27560eaeec0824ebc3edc49267326ee843b281

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

Filesize
92KB

MD5
06f61cd3d0cdf9257fcdac6483d4c1ba

SHA1
f4eec20fdbc68dbdd8bb5fd1dfecd918b099ef2f

SHA256
424ba40767618afade696d3714c1ba1960ff91e3bc1658fa510cd2332baf2a2f

SHA512
9aa7d19fb9999d0414d2399e14ccf43b66cbd6a1bf54be6538b6a0a9e9ac096bdc065a43e4d776ed5cd01a14562446fcd535979b0756781e132e13b27b575657

Download Submit
memory/4804-36-0x000002526AFD0000-0x000002526AFD1000-memory.dmp

Filesize
4KB

Download
memory/4804-19-0x000002526AFD0000-0x000002526AFD1000-memory.dmp

Filesize
4KB

Download
memory/4804-26-0x000002526C850000-0x000002526D850000-memory.dmp

Filesize
16.0MB

Download
memory/4804-11-0x000002526C850000-0x000002526D850000-memory.dmp

Filesize
16.0MB

Download
memory/4804-44-0x000002526C850000-0x000002526D850000-memory.dmp

Filesize
16.0MB

Download
memory/4804-56-0x000002526AFD0000-0x000002526AFD1000-memory.dmp

Filesize
4KB

Download
memory/4804-58-0x000002526C850000-0x000002526D850000-memory.dmp

Filesize
16.0MB

Download
memory/4804-61-0x000002526AFD0000-0x000002526AFD1000-memory.dmp

Filesize
4KB

Download
memory/4804-67-0x000002526C850000-0x000002526D850000-memory.dmp

Filesize
16.0MB

Download
memory/4804-75-0x000002526C850000-0x000002526D850000-memory.dmp

Filesize
16.0MB

Download
memory/4804-104-0x000002526AFD0000-0x000002526AFD1000-memory.dmp

Filesize
4KB

Download
memory/4804-111-0x000002526AFD0000-0x000002526AFD1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads