vjw0rm | 93d2b208e2606aedbd121f8decf421d3db2606b2ca4f34f9e47a7df89472867a

Analysis

max time kernel
167s
max time network
181s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
31/10/2022, 19:31

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General

Target

New PO.js
Size

31KB
MD5

352cf3718d548927e00df0c2f4e95014
SHA1

322b413140bb0d6f84caff5c0c990fa4e9f51b1c
SHA256

93d2b208e2606aedbd121f8decf421d3db2606b2ca4f34f9e47a7df89472867a
SHA512

d08679eebe7f647177909024618f558d45c189a58b1ecff364cafde6a6ec65a6fb65994bcbb79ddbd46b1e14fe7b0583cf5ded6d1780c33d55762cf4650f8ed5
SSDEEP

768:18tmrPR6U0hUIttUQiquJhLIiBtm8vzxC7K:1TFqtUQibaexC7K

Score

10^/10

vjw0rm trojan worm

Malware Config

Extracted

Family

vjw0rm

http://newar21.duckdns.org:2445

Signatures

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

Blocklisted process makes network request 8 IoCs

flow	pid	Process
10	4988	wscript.exe
11	4896	wscript.exe
31	4988	wscript.exe
32	4896	wscript.exe
35	4988	wscript.exe
44	4988	wscript.exe
51	4988	wscript.exe
54	4988	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-1-5-21-2295526160-1155304984-640977766-1000\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\lkbwdFADiI.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\lkbwdFADiI.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 4896 wrote to memory of 4988	4896	wscript.exe	78
PID 4896 wrote to memory of 4988	4896	wscript.exe	78

C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\New PO.js"
1⤵
- Blocklisted process makes network request
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4896
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\lkbwdFADiI.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  PID:4988

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
10KB

MD5
35ace353f82793d4fcb3e4262956a48a

SHA1
aeb25ae018150a2ea674adbaea2ea7735f3e84c5

SHA256
e5bb3ace3d17138025a2c581137197f5680dd891cc1b08b98cafd4f2a78c424f

SHA512
34f7448677da1f895f7f0aee1ae3a6170e311ba7dd71964550084b52ac2463443d68cd695db7323526451b9a2e5068c18a81aa5155bf33857ecabb1963f9546b

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