vjw0rm | c2a62e3a170efa1a16b18c7c173c4ddda4f5e13e0f6856d1f4226b297cd27c6f

Analysis

max time kernel
4294196s
max time network
150s
platform
windows7_x64
resource
win7-20220311-en
submitted
26-03-2022 15:55

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General

Target

eVoucher#008891.js
Size

10KB
MD5

f158edaa4f393576c18586889c2ab62b
SHA1

3badef58318a1d1b57560652f26b7afa3581a9ea
SHA256

c2a62e3a170efa1a16b18c7c173c4ddda4f5e13e0f6856d1f4226b297cd27c6f
SHA512

e23caabe20d5599ab387f7353bad365860cf777c422e8e2ad9d185138af956b5ef37c7376e800df01ce9920b1fa3c8d06507a471fabc7b64b49a9d524d4d7411

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Extracted

Family

vjw0rm

http://zeegod.duckdns.org:9001

Signatures

Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm
Blocklisted process makes network request 1 IoCs

Processes:

wscript.exe

flow pid process

5 1940 wscript.exe

flow	pid	process
5	1940	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\eVoucher#008891.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\eVoucher#008891.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-1-5-21-2199625441-3471261906-229485034-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2199625441-3471261906-229485034-1000\Software\Microsoft\Windows\CurrentVersion\Run\LMOXHX511V = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\eVoucher#008891.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 1940 wrote to memory of 1992	1940	wscript.exe	wscript.exe
PID 1940 wrote to memory of 1992	1940	wscript.exe	wscript.exe
PID 1940 wrote to memory of 1992	1940	wscript.exe	wscript.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\eVoucher#008891.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1940

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\llfMBdRWjZ.js"
2⤵
PID:1992

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

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Downloads

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

MD5
151fdf63d29fe0edf8d9544d4ac38773

SHA1
4704fd8301b934efc03827b06832593f707c4f36

SHA256
3d0f8c5087b18e78f7daf4e4894753fb3128acb456faef0f33c41a6d30c495fa

SHA512
a65a3f8de4b39e923556905abcfcb376088a41ebbfea8ef5a8d1ddc35ca88f558b4377e9c6db813411b2e7384caeddf7eb754be4a4052b256ed28fd67cf9408b

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memory/1992-54-0x0000000000000000-mapping.dmp

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