vjw0rm | a9b5cf89510cfcc9b8ab7e311395540e1810f69f47ebf735134a04b376960ad0

Analysis

max time kernel
116s
max time network
150s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
30/12/2023, 08:31

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General

Target

137a79bb32e10321f3803bb74e98fd93.js
Size

332KB
MD5

137a79bb32e10321f3803bb74e98fd93
SHA1

6d6f6567f58794b362f7c6837b8a082e0a9aea4d
SHA256

a9b5cf89510cfcc9b8ab7e311395540e1810f69f47ebf735134a04b376960ad0
SHA512

6594af60eba8b6645bdc77f0f1fb69ba4f71b8514e749641e08098f0249d3527bd9c62db00abf88b821179f8d9cf829dd556cfc64afdba1b8a7890d406c669b7
SSDEEP

6144:hjGBFq/NQhCpVrIIF2jGBFq/NQhCpVrIIF6:K/8N/88

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\SKdxOqJGgU.js	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SKdxOqJGgU.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-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\0HKX5ALWLG = "\"C:\\Users\\Admin\\AppData\\Roaming\\SKdxOqJGgU.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 828 wrote to memory of 2204	828	wscript.exe	28
PID 828 wrote to memory of 2204	828	wscript.exe	28
PID 828 wrote to memory of 2204	828	wscript.exe	28
PID 828 wrote to memory of 2724	828	wscript.exe	29
PID 828 wrote to memory of 2724	828	wscript.exe	29
PID 828 wrote to memory of 2724	828	wscript.exe	29

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\137a79bb32e10321f3803bb74e98fd93.js
1⤵
- Suspicious use of WriteProcessMemory
PID:828
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\SKdxOqJGgU.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:2204
- C:\Program Files\Java\jre7\bin\javaw.exe
  "C:\Program Files\Java\jre7\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\kbokpztuj.txt"
  2⤵
  PID:2724

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\SKdxOqJGgU.js

Filesize
14KB

MD5
9a9a53136c9758629583522bfcca289f

SHA1
05a411594f466a9fffce9146dbd278b608ae1e46

SHA256
e26dd03600eb13d42dc4248db99c7f5905c0f60dc85a16a7e0d382e5d52ac053

SHA512
a73c60dce5351aa05d3b3e76afc66d50a78ed59ad5c1a46a65046a716d3057166cb88abea5fdedfce4a96e659d5b0540844fa834f826d933cddf6737beb5c7f2

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

Filesize
70KB

MD5
cebb30928cec328617195c58c9ba8d88

SHA1
8b69f45ac6b92072bbb2c23e22804734aa8d2ecd

SHA256
0fa24bbaf6e530ddc6822a7dfcbd2510249b5751abee9732990b80ea570f9840

SHA512
5b4c013048c3b79e44e23c27c9f3e98eb9af6bd468585bc0fc67be8b04fc883fdc88361b267b6d5dbbf62fc4c028eef9fd52aaf2fcb8994eb3ef660c2aacd10d

Download Submit
memory/2724-10-0x0000000002010000-0x0000000005010000-memory.dmp

Filesize
48.0MB

Download
memory/2724-17-0x00000000000A0000-0x00000000000A1000-memory.dmp

Filesize
4KB

Download
memory/2724-18-0x00000000000A0000-0x00000000000A1000-memory.dmp

Filesize
4KB

Download
memory/2724-43-0x00000000000A0000-0x00000000000A1000-memory.dmp

Filesize
4KB

Download
memory/2724-45-0x00000000000A0000-0x00000000000A1000-memory.dmp

Filesize
4KB

Download
memory/2724-49-0x00000000000A0000-0x00000000000A1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads