vjw0rm | 330d4d4c03364842209ab162eabb72fc9e5aa9c0b7271bd83599cb27f492601c

General

Target

37c0373548f1334764a0fe139bc4b0e4.js
Size

202KB
MD5

37c0373548f1334764a0fe139bc4b0e4
SHA1

bea7360b7252701f1a1411d7a84c9ac631267559
SHA256

330d4d4c03364842209ab162eabb72fc9e5aa9c0b7271bd83599cb27f492601c
SHA512

bdcd45ccdf92966b5733f286a4608dfb3fc4566715045e80a92edebbf827db3994a91176e8f1945785c0af9d103259c192ae44561fe0c8d5c0286c62c2b0b4e3
SSDEEP

3072:kbH2QdessMSnPtHbh42rOYXt5+E2G/UE0Wvidfbwta+sYL8e+FX6HVmgSRn7dKI7:f11HV9OYXtMyH0WCD6a+PYBKI+4jN5lF

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-1-5-21-3791175113-1062217823-1177695025-1000\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\TrvKczAWPy.js	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TrvKczAWPy.js	WScript.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1148	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-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\TrvKczAWPy.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\server\dll\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\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\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\symbols\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\dll\jvm.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-1-5-21-3791175113-1062217823-1177695025-1000_Classes\Local Settings	wscript.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4388 wrote to memory of 1196	4388	wscript.exe	88
PID 4388 wrote to memory of 1196	4388	wscript.exe	88
PID 4388 wrote to memory of 3140	4388	wscript.exe	87
PID 4388 wrote to memory of 3140	4388	wscript.exe	87
PID 3140 wrote to memory of 1148	3140	javaw.exe	90
PID 3140 wrote to memory of 1148	3140	javaw.exe	90

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\37c0373548f1334764a0fe139bc4b0e4.js
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4388
- 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\felllqf.txt"
  2⤵
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:3140
- - 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:1148
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\TrvKczAWPy.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:1196

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

Replay Monitor

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Downloads

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

Filesize
46B

MD5
18770438f6e7e7c0c95c6ecd43f2e30f

SHA1
fb6fb5110cf1afef2e612d5fd5b37fd5ad4bc8da

SHA256
2ff4dc455baee309ad13eb2c10eda245f582de9c29e58d94430bfc0f68867cdb

SHA512
ea83006e7b00c0f30a2b9c571d682bc19925145ffe457868157d5c607177141068e68e817b82fd029c8406f31baf98b411cef1702db6df0e11527b457048f485

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

Filesize
9KB

MD5
cf858266b13ee357cf8f5f5e12151885

SHA1
7a460ee3ad3c7b42c98676a39412ba5245fa8757

SHA256
5929e5fe4b3864ee6d9218b91dd88ca9f8a30a235d3a42ee587d3a1f8ef68a6f

SHA512
69075ef84e7ec1ee05faa059d67dd1ce7439e886c83fbb9572858b6a4051cdab96212a0544260fd2a3d257534908e17c46c480c96b455686b133b9a565e09058

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

Filesize
92KB

MD5
3e93005e30804f380c9c3fb392c32e4d

SHA1
68b3a053276a14c8059d58eab447927868f2f785

SHA256
7d14c63974afd53f32e6b5b5d22f0e0e6d49e4a04b67b4670ebeaf8c2a658b64

SHA512
307f8de410b15e2f28740bf776d27c201d9eebd2a5936757becddfb31ed9724f2ab866bdeac0ddd5184aa91457a276379a0a08fb24830df57d854e5c450fd129

Download Submit
memory/3140-51-0x000001943F0F0000-0x000001943F100000-memory.dmp

Filesize
64KB

Download
memory/3140-52-0x000001943F120000-0x000001943F130000-memory.dmp

Filesize
64KB

Download
memory/3140-23-0x000001943EE20000-0x000001943FE20000-memory.dmp

Filesize
16.0MB

Download
memory/3140-33-0x000001943EE20000-0x000001943FE20000-memory.dmp

Filesize
16.0MB

Download
memory/3140-38-0x000001943EE00000-0x000001943EE01000-memory.dmp

Filesize
4KB

Download
memory/3140-41-0x000001943EE00000-0x000001943EE01000-memory.dmp

Filesize
4KB

Download
memory/3140-46-0x000001943F0A0000-0x000001943F0B0000-memory.dmp

Filesize
64KB

Download
memory/3140-11-0x000001943EE20000-0x000001943FE20000-memory.dmp

Filesize
16.0MB

Download
memory/3140-50-0x000001943F0E0000-0x000001943F0F0000-memory.dmp

Filesize
64KB

Download
memory/3140-24-0x000001943EE00000-0x000001943EE01000-memory.dmp

Filesize
4KB

Download
memory/3140-54-0x000001943F140000-0x000001943F150000-memory.dmp

Filesize
64KB

Download
memory/3140-55-0x000001943EE20000-0x000001943FE20000-memory.dmp

Filesize
16.0MB

Download
memory/3140-56-0x000001943F150000-0x000001943F160000-memory.dmp

Filesize
64KB

Download
memory/3140-57-0x000001943F160000-0x000001943F170000-memory.dmp

Filesize
64KB

Download
memory/3140-53-0x000001943F130000-0x000001943F140000-memory.dmp

Filesize
64KB

Download
memory/3140-49-0x000001943F0D0000-0x000001943F0E0000-memory.dmp

Filesize
64KB

Download
memory/3140-58-0x000001943EE20000-0x000001943FE20000-memory.dmp

Filesize
16.0MB

Download
memory/3140-48-0x000001943EE20000-0x000001943FE20000-memory.dmp

Filesize
16.0MB

Download
memory/3140-47-0x000001943F110000-0x000001943F120000-memory.dmp

Filesize
64KB

Download
memory/3140-59-0x000001943EE20000-0x000001943FE20000-memory.dmp

Filesize
16.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads