vjw0rm | 4dcd9f66d9282e34de85b10101af0de546cfcfae341ebd5fd99505f9cbfe16d6

Analysis

max time kernel
151s
max time network
159s
platform
windows7_x64
resource
win7-20220414-en
submitted
07-07-2022 12:45

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General

Target

js-beautified-1.js
Size

31KB
MD5

74c140b0a8c5361225c5bb63ee8bba61
SHA1

e161bf368ac344a51ec2c17256ad5bd51e752aac
SHA256

4dcd9f66d9282e34de85b10101af0de546cfcfae341ebd5fd99505f9cbfe16d6
SHA512

d2464c1cf6f783d7e7b8c39af19d3759d26a02c2bd298200f5da935fce8ade5feeaf3a07a587159ca223f10b300133ffd314d22aaa625d10c4020e46e7cbd86b

Score

10^/10

vjw0rm trojan worm

Malware Config

Signatures

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

Blocklisted process makes network request 9 IoCs

Processes:

wscript.exe

flow	pid	process
4	276	wscript.exe
5	276	wscript.exe
6	276	wscript.exe
8	276	wscript.exe
10	276	wscript.exe
11	276	wscript.exe
13	276	wscript.exe
14	276	wscript.exe
15	276	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\js-beautified-1.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\js-beautified-1.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 3 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 276 wrote to memory of 1448	276	wscript.exe	wscript.exe
PID 276 wrote to memory of 1448	276	wscript.exe	wscript.exe
PID 276 wrote to memory of 1448	276	wscript.exe	wscript.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\js-beautified-1.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Suspicious use of WriteProcessMemory
PID:276

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\HnCBlANEKZ.js"
2⤵
PID:1448

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\HnCBlANEKZ.js
Filesize
8KB

MD5
396776d9c2fce3d6cd89a4b25253685c

SHA1
0037ed7e8c7ce8020c81fc2240f35894cd6040aa

SHA256
832bc0cd978dd790936ffcf9845e3cbf3a74fa47ea41dbf6900a7195d38c560e

SHA512
56af0a104104e1a7df4bb58974fd2a527d3559a4f5351607df92e6c0633d6e277a265cc390c7f68ab1b6706237235ae3f70aaaddd366430d28fd802878b455c2

Download Submit
memory/276-54-0x000007FEFB9A1000-0x000007FEFB9A3000-memory.dmp

Filesize
8KB

Download
memory/1448-55-0x0000000000000000-mapping.dmp

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