vjw0rm | 69ea6e323c2ea0eec7b061aa525a27f845406943d233ef4dbb4a78fda383d4c9

Analysis

max time kernel
284s
max time network
301s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
14/09/2022, 16:32

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General

Target

Numero de proceso. 0091-002022-45125455775698.js
Size

20KB
MD5

9a6201566699e9f2295752ed05eb7b61
SHA1

50a9dab831e80495ca567663906682373fdd6f03
SHA256

69ea6e323c2ea0eec7b061aa525a27f845406943d233ef4dbb4a78fda383d4c9
SHA512

d903bb56cef06b76d3faf6916a48f3172b1e997aa716675ad33ddaef504db8bb2cb008c5bf7a6c740fd5f768dddca54c294cd39629d37fa83b3b9523b1cfe5c9
SSDEEP

384:ppph8Bjxjn/Has3Hod8WUznzigOMOH4pW0TuemNZiBZnk:ppph8BjxjfaBd8WsjOHZ7iBRk

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 11 IoCs

flow	pid	Process
8	1484	wscript.exe
25	1484	wscript.exe
32	1484	wscript.exe
35	1484	wscript.exe
36	1484	wscript.exe
37	1484	wscript.exe
38	1484	wscript.exe
39	1484	wscript.exe
47	1484	wscript.exe
49	1484	wscript.exe
50	1484	wscript.exe

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-1-5-21-2891029575-1462575-1165213807-1000\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\Numero de proceso. 0091-002022-45125455775698.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Numero de proceso. 0091-002022-45125455775698.js	wscript.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\1ET4SWR6G7 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Numero de proceso. 0091-002022-45125455775698.js\""	wscript.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1484 wrote to memory of 3024	1484	wscript.exe	79
PID 1484 wrote to memory of 3024	1484	wscript.exe	79

C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\Numero de proceso. 0091-002022-45125455775698.js"
1⤵
- Blocklisted process makes network request
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1484
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\xvwODgbQQl.js"
  2⤵
  PID:3024

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

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\Roaming\xvwODgbQQl.js

Filesize
5KB

MD5
e73113da76c53b30cf7de097d94ea849

SHA1
58f293c3f6da0ea23fe5b41ffbbfb71aeb9d8bf0

SHA256
35447a9898fd35a5077d580a68c6a9b30440d0f4db5b5deb231fbd75a56b9a2b

SHA512
3fc2d1d96d8ee0c1623c27182b9f050019cc2ab95216fa0beaf0816b850b3a5eb29a3787afbb71860ded6528e724e3a17b355edb929d9fcf82395917eef2f2ee

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