vjw0rm | f2a1e7f1d81a1500da4245641082c12649e4bb8136d7883c2f211ba327ffcac2

General

Target

eVoucher.js
Size

20KB
MD5

b2be3dbbf5e20713b203a95b9dca8ee6
SHA1

fa11acd273295bbfaf6db67acb1cc7fd0934d825
SHA256

f2a1e7f1d81a1500da4245641082c12649e4bb8136d7883c2f211ba327ffcac2
SHA512

b03a23d4020904b4b72005c9513e2f77a4f4925754532e3b417d26e85deb68460f8671b49180527a9f719afecd6ebaabfb17ccaa6552ee75bc5d545b5d0788dc

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Extracted

Family

vjw0rm

C2

http://warrr.duckdns.org:9997

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	1656	wscript.exe
9	1076	wscript.exe
10	1656	wscript.exe
11	1656	wscript.exe
14	1656	wscript.exe
15	1656	wscript.exe
17	1656	wscript.exe
19	1656	wscript.exe
21	1656	wscript.exe
22	1656	wscript.exe
24	1656	wscript.exe
26	1656	wscript.exe
27	1656	wscript.exe
30	1656	wscript.exe
31	1656	wscript.exe
32	1656	wscript.exe
34	1656	wscript.exe
36	1656	wscript.exe
37	1656	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\eVoucher.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ssoLSQXptF.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ssoLSQXptF.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-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\ssoLSQXptF.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Windows\CurrentVersion\Run\RV7KJCEOJC = "\"C:\\Users\\Admin\\AppData\\Roaming\\eVoucher.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

1496 schtasks.exe

pid	process
1496	schtasks.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 1076 wrote to memory of 1656	1076	wscript.exe	wscript.exe
PID 1076 wrote to memory of 1656	1076	wscript.exe	wscript.exe
PID 1076 wrote to memory of 1656	1076	wscript.exe	wscript.exe
PID 1076 wrote to memory of 1496	1076	wscript.exe	schtasks.exe
PID 1076 wrote to memory of 1496	1076	wscript.exe	schtasks.exe
PID 1076 wrote to memory of 1496	1076	wscript.exe	schtasks.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:1076

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\ssoLSQXptF.js"
2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:1656

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\eVoucher.js
2⤵
- Creates scheduled task(s)
PID:1496

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

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\ssoLSQXptF.js
MD5
e983a6182dfbb9a79b2bf3e3b9c589a4

SHA1
f24cb83586d88963bece54a2d18c1994880e0377

SHA256
bf43679c00fd876f84e1f836b2bb753fe8e1cd08b0d573e429cecd26d09e1fd5

SHA512
5d0a8db73393378706ee9e955c1e04fc6bb0c71a113514e158df5c5d5a1f7d0e2d04a4d3017bc56ea0ddc1b302f04313cbcf4dd043628abc8acaf9bbf30ef120

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads