vjw0rm | c409b163881ea5ee746756d65f515f7a5dca8b622e6d1e557ef963acb6849000

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20220414-en
submitted
20-06-2022 09:42

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General

Target

zpgygxtRex.js
Size

30KB
MD5

7c2e7e5a48421b27561a23936f1d9fee
SHA1

739fde5b0ad4d2f651a16e2458bf3e64bfa748b0
SHA256

c409b163881ea5ee746756d65f515f7a5dca8b622e6d1e557ef963acb6849000
SHA512

149fe69bf7b778ca8e450c2b0d3c4b54a34023b908b8705a65d8da9d060b0e4e46346664f45e100969af3c21315f2bcd9f517ee99b94dfe5bf8134c9cf0dc323

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 15 IoCs

Processes:

wscript.exe

flow	pid	process
4	1056	wscript.exe
5	1056	wscript.exe
6	1056	wscript.exe
8	1056	wscript.exe
10	1056	wscript.exe
11	1056	wscript.exe
13	1056	wscript.exe
14	1056	wscript.exe
15	1056	wscript.exe
17	1056	wscript.exe
18	1056	wscript.exe
19	1056	wscript.exe
21	1056	wscript.exe
22	1056	wscript.exe
23	1056	wscript.exe

Drops startup file 2 IoCs

Processes:

wscript.exe

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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wscript.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\YVBPFHTJIQ = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\zpgygxtRex.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

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\zpgygxtRex.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:1056

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1056-54-0x000007FEFBD41000-0x000007FEFBD43000-memory.dmp

Filesize
8KB

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