vjw0rm | 68921406e9b3c27e573cbf28f5d12a5b46cb40501384feaf13e4e3f753246d2c

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
26-01-2024 21:23

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General

Target

786cd57e65ffb85f2e19b3d2ef3dc0bf.js
Size

31KB
MD5

786cd57e65ffb85f2e19b3d2ef3dc0bf
SHA1

e36e41a8bb11ec29f90e0b3c643e2707d2a2f255
SHA256

68921406e9b3c27e573cbf28f5d12a5b46cb40501384feaf13e4e3f753246d2c
SHA512

45d85f01d0b2b2f8bb13e886ec8015c0f8d906b9041910ad94c2be2de4557c312f36cf018ccf37bb6fa362b1a6a49da674a08687691e78e78855206cb6cdcb99
SSDEEP

768:4NMji4v+cUwNgwskCb+dLzN2V8NGw3WSk/cY03l83:UMDbU65FkqNGAZkUU

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Signatures

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

Blocklisted process makes network request 7 IoCs

flow	pid	Process
5	2188	wscript.exe
10	2188	wscript.exe
18	2188	wscript.exe
23	2188	wscript.exe
29	2188	wscript.exe
34	2188	wscript.exe
42	2188	wscript.exe

Drops startup file 4 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\786cd57e65ffb85f2e19b3d2ef3dc0bf.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\786cd57e65ffb85f2e19b3d2ef3dc0bf.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PzbgTgURNP.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PzbgTgURNP.js	wscript.exe

Adds Run key to start application 2 TTPs 2 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\0L2MC7JOKR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\786cd57e65ffb85f2e19b3d2ef3dc0bf.js\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\PzbgTgURNP.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 3 IoCs

description	pid	Process	procid_target
PID 2188 wrote to memory of 2688	2188	wscript.exe	28
PID 2188 wrote to memory of 2688	2188	wscript.exe	28
PID 2188 wrote to memory of 2688	2188	wscript.exe	28

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\786cd57e65ffb85f2e19b3d2ef3dc0bf.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2188
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\PzbgTgURNP.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:2688

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

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Downloads

C:\Users\Admin\AppData\Roaming\PzbgTgURNP.js

Filesize
10KB

MD5
91cbc6abb6d16bba34b15ca2ce44e689

SHA1
f63cb5c1395b405a4e1043ce0b46488da52ea47e

SHA256
ebaa4b01e859ee2f2f37178a78d9d6e668c5cb47edca97bff923fdbf68d02a74

SHA512
58977af7c86a43257aa2bc17ea1eaafa49f41cee579c0504004648d0a09e2e7939d6b84c370a2d78cedd47b093009da79d6ac33e0c0cec0712f60a8a245cf0ba

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads