vjw0rm | 39515cd670a3b68b1a6dfa22ee5f8b32872ce98c5f0da3d9aeccff18932128a9

General

Target

eReceipt.js
Size

30KB
MD5

1c345fdbf8e3bf6a7dbb61b509175e65
SHA1

f3800f54053638da76f04f34251a886ca39cb79e
SHA256

39515cd670a3b68b1a6dfa22ee5f8b32872ce98c5f0da3d9aeccff18932128a9
SHA512

a305be6509a01b00c67aedb87782c852b8a77db28475bee3d9bc1e62946e3d72f1f81d421b70c3f4b2cd2c66d6312cf19a6ba66c564798b99ce4c7bf8a480f84

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 18 IoCs

Processes:

wscript.exewscript.exe

flow	pid	process
6	3172	wscript.exe
7	924	wscript.exe
13	924	wscript.exe
14	924	wscript.exe
15	924	wscript.exe
16	924	wscript.exe
17	924	wscript.exe
18	924	wscript.exe
19	924	wscript.exe
20	924	wscript.exe
21	924	wscript.exe
22	924	wscript.exe
23	924	wscript.exe
24	924	wscript.exe
25	924	wscript.exe
26	924	wscript.exe
27	924	wscript.exe
28	924	wscript.exe

Drops startup file 4 IoCs

Processes:

wscript.exewscript.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\UcPLrIKxHY.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\eReceipt.js	wscript.exe
File opened for modification	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\UcPLrIKxHY.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-1-5-21-2559286294-2439613352-4032193287-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000\Software\Microsoft\Windows\CurrentVersion\Run\QTI627R350 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\eReceipt.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\UcPLrIKxHY.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 2 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 3172 wrote to memory of 924	3172	wscript.exe	wscript.exe
PID 3172 wrote to memory of 924	3172	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:3172

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\UcPLrIKxHY.js"
2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:924

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

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Downloads

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

MD5
b62bd809653a1ae3dcaeeb7b31c728f0

SHA1
db818b03821f9e25a81864e5dcb4128eb37722a8

SHA256
eee5274eae70bdcf1af045798f853a09e612bdb7bc36af57f2b7df99b44afeb3

SHA512
b3b75b5ddf8f90d518cec4ba876738049ab24e9e54829abe70e1836e9f7145e552bfb5f9ecac999340db3b6e24a4e92a0e20f73fe1d22f635743ef42de7755ba

Download Submit
memory/924-115-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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