vjw0rm | 96fffb7a76f1b3c9073d35f35292f987304538e1e8c7b8b234872a47c94aab0d

General

Target

sYCuOOjDOl_vjstub.js
Size

29KB
MD5

dac9ed798f79a40ef59756c710f61593
SHA1

199bfa38a09181e9396cef4d3b29b0762c5ba987
SHA256

94036cd95dde4d8ec66e76a24755a15ac474c64b12e74ec87d29ff9b8a889160
SHA512

ec5119052e545e0246234b51777bc3a1a3a64ea0c9a3eab98b948896235bd5a49eca1616788636dc09ddd8328382f00b03e5c39139972cff2198667baf5bbcef

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 21 IoCs

Processes:

wscript.exewscript.exe

flow	pid	process
6	1320	wscript.exe
7	948	wscript.exe
8	1320	wscript.exe
9	1320	wscript.exe
12	948	wscript.exe
14	1320	wscript.exe
15	1320	wscript.exe
16	1320	wscript.exe
19	948	wscript.exe
20	1320	wscript.exe
21	1320	wscript.exe
22	1320	wscript.exe
24	948	wscript.exe
26	1320	wscript.exe
27	1320	wscript.exe
28	1320	wscript.exe
30	948	wscript.exe
32	1320	wscript.exe
33	1320	wscript.exe
35	948	wscript.exe
36	1320	wscript.exe

Drops startup file 2 IoCs

Processes:

wscript.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\egqENcOXOr.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\egqENcOXOr.js	wscript.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wscript.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows\CurrentVersion\Run\YVBPFHTJIQ = "\"C:\\Users\\Admin\\AppData\\Roaming\\egqENcOXOr.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 948 wrote to memory of 1320	948	wscript.exe	wscript.exe
PID 948 wrote to memory of 1320	948	wscript.exe	wscript.exe
PID 948 wrote to memory of 1320	948	wscript.exe	wscript.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\sYCuOOjDOl_vjstub.js
1⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:948
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\egqENcOXOr.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Adds Run key to start application
  PID:1320

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\egqENcOXOr.js

Filesize
10KB

MD5
dffdb0fc6b534c658575b72bfd4826ae

SHA1
d6cc3039c628b6d9e8a137933fa953e785a9ef0b

SHA256
7e4297ebdde73b716fafb213529d79007e6825b786a471ca7e5a52024fddb939

SHA512
c9f4be68cc09ad027a65745233363940ed7ee7b82ecf919096336ddfec90932ad707ec30089e40f8e2918df2b14f400c96d3d854c0d89ae56897e06e849637ae

Download Submit
memory/948-54-0x000007FEFB971000-0x000007FEFB973000-memory.dmp

Filesize
8KB

Download
memory/1320-55-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads