vjw0rm | 1e60267536edbee8cc12a8757fe147727bf4513b6e4ae7fb1329ccf95344933e

Analysis

max time kernel
147s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
15/01/2024, 02:51

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General

Target

5bf1a543796637bd57aed27f8fcf67e7.js
Size

52KB
MD5

5bf1a543796637bd57aed27f8fcf67e7
SHA1

ba263f1a5157a912e7a0984602ce910d97366b8b
SHA256

1e60267536edbee8cc12a8757fe147727bf4513b6e4ae7fb1329ccf95344933e
SHA512

6f0306906716f46a9fa82d3ee1876f36abbe999ba7fcfdc2cb27653cf902c59d2e83d7f010c261b836cff394770df4ac208d43ef709287f7701384c8874b245b
SSDEEP

768:M13RwPVMMh26+la3RnMf73Ibq5ajmsdPwieARXXRi1ClK6RJ+3l3lrIOwkxb:Q3RwpY6+la3BS7TypwZARnqcbOweb

Score

10^/10

vjw0rm 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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 4 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\BcZlevrPxo.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\take90.vbs	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\take90.vbs	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\BcZlevrPxo.js	wscript.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\take90 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\take90.vbs\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\take90 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\take90.vbs\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\BcZlevrPxo.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 4 IoCs

description	pid	Process	procid_target
PID 1500 wrote to memory of 4732	1500	wscript.exe	88
PID 1500 wrote to memory of 4732	1500	wscript.exe	88
PID 1500 wrote to memory of 4984	1500	wscript.exe	89
PID 1500 wrote to memory of 4984	1500	wscript.exe	89

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\5bf1a543796637bd57aed27f8fcf67e7.js
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1500
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\BcZlevrPxo.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:4732
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" "C:\Users\Admin\AppData\Local\Temp\take90.vbs"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:4984

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\take90.vbs

Filesize
13KB

MD5
c144aabf6a599097eafe80ea421708d6

SHA1
6cafcd68e7cb5dee5ce8ca7a4b5be7762038cbcc

SHA256
760ea4debdf2ab6968f0db5caa873f77375ed5614ff0107cd96f10de343240a2

SHA512
82ee26896380705f419fc25fc65bc8b1124e433a869597340f6de20020ae8e2a54d98ad372a782f777dfab37cba33afb95be7db7e7e7cb32f690eff1cc591008

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

Filesize
10KB

MD5
554108711a6d03fb0e8d99913f690006

SHA1
c95410a0eb00465103036857bd09db3412e77ceb

SHA256
d522485de782fb71950a600c1167dd0951514f62168d36434040f291ee072bb1

SHA512
773ebda305c28e83127456d620a481f292898979c4792156f2f42b5fa033643e6a43de52f51b59414d7a807b1813998fff1e7beeb59f37cba6ec95c3956c425b

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads