vjw0rm | e21dba51d9968a1073d43143b7acbd4179a8fa73fc5f48921eabac7ea9869daa

General

Target

eVoucher.js
Size

30KB
MD5

ef30d08be6b02f148da164e54892c8e3
SHA1

4998edfd067f343a56e03422d3913c1cc7066e4b
SHA256

e21dba51d9968a1073d43143b7acbd4179a8fa73fc5f48921eabac7ea9869daa
SHA512

9e1b1142248c8088c2ecb2bd33887136e4f39c3590ce3b95f2fa5e93b922a07c7ecd598650d91a7ee93c4f018b898a96e49ed41157be607abf1b1ce9845c72c1

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 19 IoCs

Processes:

wscript.exewscript.exe

flow	pid	process
8	516	wscript.exe
9	2040	wscript.exe
11	516	wscript.exe
13	516	wscript.exe
15	516	wscript.exe
17	516	wscript.exe
20	516	wscript.exe
23	516	wscript.exe
25	516	wscript.exe
27	516	wscript.exe
30	516	wscript.exe
32	516	wscript.exe
33	516	wscript.exe
37	516	wscript.exe
39	516	wscript.exe
41	516	wscript.exe
44	516	wscript.exe
45	516	wscript.exe
47	516	wscript.exe

Drops startup file 4 IoCs

Processes:

wscript.exewscript.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\JMuHxVQRbU.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\JMuHxVQRbU.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\eVoucher.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\eVoucher.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-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\QTI627R350 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\eVoucher.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\JMuHxVQRbU.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 2040 wrote to memory of 516	2040	wscript.exe	wscript.exe
PID 2040 wrote to memory of 516	2040	wscript.exe	wscript.exe
PID 2040 wrote to memory of 516	2040	wscript.exe	wscript.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\eVoucher.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2040

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\JMuHxVQRbU.js"
2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:516

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\JMuHxVQRbU.js
MD5
33f71afd870cab678bc8b4967a0bd77f

SHA1
fa1f2f046d2daf22065a73232317aa5b0a155bdb

SHA256
b45b6d0bad5cb0ec3aa0d3388014d9830e2db4162983772174be612aa2f3aefc

SHA512
56021edf4b36a130c536e117b197943c78fa81922c383b952e240828ac7ad803338fef02670d1fdb56f0b5403198c36a46d4b1de430bdce00883eca595ee19d5

Download Submit
memory/516-60-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads