vjw0rm | d659d288e3b316568f0ef98b2f8a14b57b2f620818fa01fba1741d5f0f0f0925

General

Target

receipt.js
Size

21KB
MD5

fb34a8b0c4fb9221726c41f66ad5a604
SHA1

957ace13d02b3ff42d1d34037e7f348e00c8de94
SHA256

d659d288e3b316568f0ef98b2f8a14b57b2f620818fa01fba1741d5f0f0f0925
SHA512

53cd70534f7fdf52ef57981694761325076dff190cd1911966c29dab0cd1b1b6417bde0dbe65780f0b0ccc89649e4f776441c577717d4e0169c4fd84a5f061dc

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

Processes:

wscript.exewscript.exe

flow	pid	process
8	576	wscript.exe
9	1920	wscript.exe
10	576	wscript.exe
11	1920	wscript.exe
13	576	wscript.exe
16	1920	wscript.exe
18	576	wscript.exe
20	1920	wscript.exe
21	576	wscript.exe
22	1920	wscript.exe
24	576	wscript.exe
26	1920	wscript.exe
29	576	wscript.exe
31	1920	wscript.exe
32	576	wscript.exe
33	1920	wscript.exe
35	576	wscript.exe
37	1920	wscript.exe
40	576	wscript.exe
42	1920	wscript.exe
43	576	wscript.exe
45	1920	wscript.exe
47	1920	wscript.exe
48	576	wscript.exe
51	1920	wscript.exe
53	576	wscript.exe
55	1920	wscript.exe
56	576	wscript.exe
57	1920	wscript.exe
59	576	wscript.exe
63	1920	wscript.exe
64	576	wscript.exe

Drops startup file 3 IoCs

Processes:

wscript.exewscript.exe

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

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wscript.exewscript.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\tOiJLeONJD.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows\CurrentVersion\Run\RV7KJCEOJC = "\"C:\\Users\\Admin\\AppData\\Roaming\\receipt.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
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

616 schtasks.exe

pid	process
616	schtasks.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 1920 wrote to memory of 576	1920	wscript.exe	wscript.exe
PID 1920 wrote to memory of 576	1920	wscript.exe	wscript.exe
PID 1920 wrote to memory of 576	1920	wscript.exe	wscript.exe
PID 1920 wrote to memory of 616	1920	wscript.exe	schtasks.exe
PID 1920 wrote to memory of 616	1920	wscript.exe	schtasks.exe
PID 1920 wrote to memory of 616	1920	wscript.exe	schtasks.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\receipt.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1920
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\tOiJLeONJD.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Adds Run key to start application
  PID:576
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\receipt.js
  2⤵
  - Creates scheduled task(s)
  PID:616

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

MD5
e2b3a0b7a66b20f08bf748baed1eec41

SHA1
a94dd7e0819aa43080574f80da8195bd84e86a0e

SHA256
ba188f267eb3aff4ee8dee77e77389b97d9298a020bd369ad078836c31436dfd

SHA512
ac524fd11905c5d5a3ab8d13d95be4b3fbc6edf44a14844b80ccdf868f39b95a710dac26607adde77fdb02ed4ce081bfc28c52148692ddb76d83c60ee1b92f66

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads