vjw0rm | 21e0026aeb23c03125337151d862a29372ac17af5663fca1f5ff7beeacf82fc1

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
28-01-2024 23:59

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General

Target

7e58440b8eb773b24aace538de1c5437.js
Size

67KB
MD5

7e58440b8eb773b24aace538de1c5437
SHA1

b824cf54e9e9e1c28ff2ec6b6e3de9048750f5cb
SHA256

21e0026aeb23c03125337151d862a29372ac17af5663fca1f5ff7beeacf82fc1
SHA512

a3d50e13255253989be68a25304ad51098fdbbe8873269d6fd148cc7ef641639bea881cfb57837182ee0c5036340cdd572706d0ac5552c6be8404404f79db298
SSDEEP

1536:YQ/nup5Ih191nup5Ih19efc//nup5Ih191nup5Ih19efcq6:7Gf9fbfWGf9fbfE

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 32 IoCs

flow	pid	Process
5	1416	wscript.exe
7	1416	wscript.exe
9	1416	wscript.exe
10	1416	wscript.exe
13	1416	wscript.exe
14	1416	wscript.exe
18	1416	wscript.exe
19	1416	wscript.exe
22	1416	wscript.exe
23	1416	wscript.exe
25	1416	wscript.exe
26	1416	wscript.exe
31	1416	wscript.exe
32	1416	wscript.exe
34	1416	wscript.exe
35	1416	wscript.exe
37	1416	wscript.exe
38	1416	wscript.exe
43	1416	wscript.exe
44	1416	wscript.exe
46	1416	wscript.exe
47	1416	wscript.exe
50	1416	wscript.exe
52	1416	wscript.exe
55	1416	wscript.exe
56	1416	wscript.exe
59	1416	wscript.exe
60	1416	wscript.exe
62	1416	wscript.exe
64	1416	wscript.exe
68	1416	wscript.exe
69	1416	wscript.exe

Drops startup file 4 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7e58440b8eb773b24aace538de1c5437.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7e58440b8eb773b24aace538de1c5437.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\rVRpsUBiCR.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\rVRpsUBiCR.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-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Windows\CurrentVersion\Run\0HKX5ALWLG = "\"C:\\Users\\Admin\\AppData\\Roaming\\rVRpsUBiCR.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 1416 wrote to memory of 2172	1416	wscript.exe	28
PID 1416 wrote to memory of 2172	1416	wscript.exe	28
PID 1416 wrote to memory of 2172	1416	wscript.exe	28

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\7e58440b8eb773b24aace538de1c5437.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Suspicious use of WriteProcessMemory
PID:1416
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\rVRpsUBiCR.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:2172

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\rVRpsUBiCR.js

Filesize
14KB

MD5
ed533885cb7d43829db0e85dbaabec22

SHA1
c19225ec3612ce86d4f5b8046ae65b3332d40776

SHA256
6641f0211253402fa4b39005e29c7e0b688d3722d05746040f6c35b4c14182eb

SHA512
b6420e3c79ebb31b687f1b3f89ee4a67ea45bc08628aa91cf9ad63cd6c488f198ef6f981ad784cfa6ce3534d937a4a957e02e00d2b09c99301cfba1e90d1996b

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads