vjw0rm | f251156124b27bd9de66f6cf4d17b234cae540a4737dfe95fb71602dfd738174

Analysis

max time kernel
191s
max time network
207s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
22-12-2023 01:46

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General

Target

4b263027057b16a083bb8e409b8dbced.js
Size

199KB
MD5

4b263027057b16a083bb8e409b8dbced
SHA1

f4c761417c146343db7d305f60a3b370669fe8e5
SHA256

f251156124b27bd9de66f6cf4d17b234cae540a4737dfe95fb71602dfd738174
SHA512

38b3be25c0dc3a9aafa995a565bc9588741e3178ebe64bb95a07e2e3000f9900ebde4f5a5543a2d8688e29907fb392705a12fd6f6dc264b94fdaa3f4a128ba5f
SSDEEP

3072:Oaqiowk1T2FI5gt6SIIjX9IGLfm1Hri4+fJ5L/QBdc7EBHWB:ORi2Slg0jHCi4arL/Udc7EpWB

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Signatures

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

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jTtxtIjlOc.js	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jTtxtIjlOc.js	WScript.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-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\jTtxtIjlOc.js\""	WScript.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2864 wrote to memory of 2648	2864	wscript.exe	29
PID 2864 wrote to memory of 2648	2864	wscript.exe	29
PID 2864 wrote to memory of 2648	2864	wscript.exe	29
PID 2864 wrote to memory of 2704	2864	wscript.exe	30
PID 2864 wrote to memory of 2704	2864	wscript.exe	30
PID 2864 wrote to memory of 2704	2864	wscript.exe	30

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\4b263027057b16a083bb8e409b8dbced.js
1⤵
- Suspicious use of WriteProcessMemory
PID:2864
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\jTtxtIjlOc.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:2648
- C:\Program Files\Java\jre7\bin\javaw.exe
  "C:\Program Files\Java\jre7\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\ctzwwvbgdk.txt"
  2⤵
  PID:2704

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\ctzwwvbgdk.txt

Filesize
88KB

MD5
468ec549c270898563a0d61e42a3bd17

SHA1
6bbd046226d2a87abd4e24d9831e029d97f5e0c7

SHA256
ba97fd311dcae06ced279a1a5503252c7c0986a28e4168f0f96b4afcbcb7f79b

SHA512
e9071cd00f5c12810e08655f9dedd740fa3052132467a1596056d986a505d980fde4a0bac0d9ff573b630fd0c5b4aeec05b878bd3d05c549e9745fe26dbc8039

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

Filesize
10KB

MD5
aaf4029030e66fc5a1f728d1e45f506e

SHA1
f8b00acf66797dac7e25faadbc7444faf15a225d

SHA256
4de890877e6eea47f9667cc64c94493f81b63499fe9e5858a526da4617ded348

SHA512
e708ee9596a830d180edd381c15a78efee06306ec23d6b2386fc666d1923ed3e61b6df9666ba0b70778048566dada9bd7bd9c551a4ffc555c46d7855a0e673c4

Download Submit
memory/2704-10-0x00000000022F0000-0x00000000052F0000-memory.dmp

Filesize
48.0MB

Download
memory/2704-17-0x0000000000110000-0x0000000000111000-memory.dmp

Filesize
4KB

Download
memory/2704-41-0x0000000000110000-0x0000000000111000-memory.dmp

Filesize
4KB

Download
memory/2704-47-0x0000000000110000-0x0000000000111000-memory.dmp

Filesize
4KB

Download
memory/2704-48-0x0000000000110000-0x0000000000111000-memory.dmp

Filesize
4KB

Download
memory/2704-50-0x00000000022F0000-0x00000000052F0000-memory.dmp

Filesize
48.0MB

Download
memory/2704-58-0x0000000000110000-0x0000000000111000-memory.dmp

Filesize
4KB

Download
memory/2704-74-0x0000000000110000-0x0000000000111000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads