vjw0rm | 19c6e4d4e87bb5ad1cf9ba1bcdf7d61e64c54fef37c4a49bfea13981887602b6

General

Target

ISO_certification_031.js
Size

29KB
MD5

d2178ac6735106853e78e3be9c4bfc9f
SHA1

1f7b9f867b125ac0ff038ac6d5700ed926ee1958
SHA256

19c6e4d4e87bb5ad1cf9ba1bcdf7d61e64c54fef37c4a49bfea13981887602b6
SHA512

500ef99a869d76f0ba719ed128592bc59afc221f0900aee96ca5421c1aeecb919a0a260117b544662b78a3f59fffea651bcbc9271e39f017a10a38799d985989

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
12	1664	wscript.exe
13	1748	wscript.exe
14	1748	wscript.exe
17	1748	wscript.exe
19	1664	wscript.exe
21	1748	wscript.exe
23	1748	wscript.exe
25	1748	wscript.exe
27	1664	wscript.exe
28	1748	wscript.exe
31	1748	wscript.exe
34	1748	wscript.exe
35	1664	wscript.exe
38	1748	wscript.exe
39	1748	wscript.exe
41	1664	wscript.exe
43	1748	wscript.exe
46	1748	wscript.exe
47	1664	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\ISO_certification_031.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\KkRPkfLPdt.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\KkRPkfLPdt.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-1-5-21-1669990088-476967504-438132596-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\KkRPkfLPdt.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000\Software\Microsoft\Windows\CurrentVersion\Run\P7EKOWB6GH = "\"C:\\ProgramData\\ISO_certification_031.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

1532 schtasks.exe

pid	process
1532	schtasks.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 1664 wrote to memory of 1748	1664	wscript.exe	wscript.exe
PID 1664 wrote to memory of 1748	1664	wscript.exe	wscript.exe
PID 1664 wrote to memory of 1748	1664	wscript.exe	wscript.exe
PID 1664 wrote to memory of 1532	1664	wscript.exe	schtasks.exe
PID 1664 wrote to memory of 1532	1664	wscript.exe	schtasks.exe
PID 1664 wrote to memory of 1532	1664	wscript.exe	schtasks.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\ISO_certification_031.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1664

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\KkRPkfLPdt.js"
2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:1748

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\ProgramData\ISO_certification_031.js
2⤵
- Creates scheduled task(s)
PID:1532

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\KkRPkfLPdt.js

MD5
3176c62db4cb87f70fe7e34817fc04b1

SHA1
856f188830c46960531dc8d47a2dec6c2458ff24

SHA256
6b3c57a6526de6f9e1f5619142aaa1e0e9a731c88c5f72f940a0c17be66bced8

SHA512
61b87b3ceb4fcc72fad58ba23950eeca8348b638e8d50c0dee44f2588d5966a3b772a80cffbe7bb56d25cdb21446d3d6ecf412f28e104d82709beb298679c4ed

Download Submit
memory/1532-54-0x0000000000000000-mapping.dmp

Download
memory/1748-52-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads