vjw0rm | 5c31139072a9120d3083572fa3404c0b8092c9ad801f0f71146c15256b449d65

General

Target

eReceipt.js
Size

23KB
MD5

71dd3d13d2f94788ff6ba8c451e14a10
SHA1

e1c7b5de5ed6bd7814ebb6b826292984ca914681
SHA256

5c31139072a9120d3083572fa3404c0b8092c9ad801f0f71146c15256b449d65
SHA512

87055cc1c4407094d270e0559f2c74001cc46ffd824696788b79806db1a75fad3e6a15e0eae642bb9ce648008cb6ed66cc2ce7ba27a466be563a0c43eb806ed1

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Extracted

Family

vjw0rm

C2

http://loadcash.duckdns.org:7779

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	1548	wscript.exe
9	696	wscript.exe
10	696	wscript.exe
12	696	wscript.exe
15	696	wscript.exe
17	696	wscript.exe
18	696	wscript.exe
21	696	wscript.exe
23	696	wscript.exe
25	696	wscript.exe
27	696	wscript.exe
29	696	wscript.exe
31	696	wscript.exe
34	696	wscript.exe
35	696	wscript.exe
37	696	wscript.exe
40	696	wscript.exe
42	696	wscript.exe
43	696	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\eReceipt.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\VmigjCkdfz.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\VmigjCkdfz.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
Set value (str)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Windows\CurrentVersion\Run\XIKPFFU2BI = "\"C:\\Users\\Admin\\AppData\\Roaming\\eReceipt.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\VmigjCkdfz.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Windows\CurrentVersion\Run	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 1548 wrote to memory of 696	1548	wscript.exe	wscript.exe
PID 1548 wrote to memory of 696	1548	wscript.exe	wscript.exe
PID 1548 wrote to memory of 696	1548	wscript.exe	wscript.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\eReceipt.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1548

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\VmigjCkdfz.js"
2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:696

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\VmigjCkdfz.js
MD5
5cd907aec19d96749d3fb8f1b5378367

SHA1
195fd789274725201674fe41dfaf4b0875916a4c

SHA256
618b3fa2687370fa418900d543a5e353afff5c5ae5a1d9862f1993f285d4c6f6

SHA512
3e366fdae68f6f66b6677908a1436c0cb8c9e37545955ce1aa2a105b582f8446c641e65e012f45e826cc6184f1d59b4f106dca1bf8672efe0be0a300d882b066

Download Submit
memory/696-56-0x0000000000000000-mapping.dmp

Download
memory/1548-55-0x000007FEFBFE1000-0x000007FEFBFE3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads