vjw0rm | efc93b3a44d76771669a8bd1df809f50cc9f976107f623da470f8d30279b4ad7

Analysis

max time kernel
144s
max time network
145s
platform
windows10_x64
resource
win10v20201028
submitted
31-01-2021 07:44

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General

Target

balance de paiement centre des mandats dec 2020xlsx.js
Size

40KB
MD5

e6dafaffdb8dea5e25b305455e51f68e
SHA1

3eadc51ea6ccf5532c8929270be96dcb2abfe9ab
SHA256

efc93b3a44d76771669a8bd1df809f50cc9f976107f623da470f8d30279b4ad7
SHA512

ffb9ac8db09b6ba5ca2f414608ad56ef3a70e1c99fd501e1d03de1d2559b02c3774c6f60dee585e487ea1c56f8949949a6139836a559a8ad16163d06318a3379

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 21 IoCs

Processes:

wscript.exe

flow	pid	process
7	3884	wscript.exe
10	3884	wscript.exe
12	3884	wscript.exe
14	3884	wscript.exe
21	3884	wscript.exe
23	3884	wscript.exe
24	3884	wscript.exe
25	3884	wscript.exe
26	3884	wscript.exe
27	3884	wscript.exe
28	3884	wscript.exe
31	3884	wscript.exe
32	3884	wscript.exe
33	3884	wscript.exe
34	3884	wscript.exe
35	3884	wscript.exe
36	3884	wscript.exe
37	3884	wscript.exe
38	3884	wscript.exe
39	3884	wscript.exe
40	3884	wscript.exe

Drops startup file 2 IoCs

Processes:

wscript.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\balance de paiement centre des mandats dec 2020xlsx.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\balance de paiement centre des mandats dec 2020xlsx.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-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\Z03E1BZQWH = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\balance de paiement centre des mandats dec 2020xlsx.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\balance de paiement centre des mandats dec 2020xlsx.js"
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:3884

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/3884-2-0x0000023462A60000-0x0000023462A64000-memory.dmp

Filesize
16KB

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