vjw0rm | cc17a222a8b6e268ef29c4e4de39390b77f23fc6c45ea21dc9191ac45f15aea6

General

Target

test.js
Size

609KB
MD5

0dd3d7d195a7d45f24c1f86c25b8bd73
SHA1

cb4142317dc5ca92ba2eee9aecc8809d34276ce4
SHA256

cc17a222a8b6e268ef29c4e4de39390b77f23fc6c45ea21dc9191ac45f15aea6
SHA512

63f0093605b0a4632a123dba5d999462025a6d99f9d2a310c53e0ab255526a297d3b370fae39c1f4b52ef1c591880fa90b0c45ab2fe8686f122c5c56b73023d0
SSDEEP

3072:vTwFRFxmzUmKvOERglXIjl7U0lVJSpHOcdKzPaKjaFeMXnsM4MkY9WZY5i/1RgHj:v+67ykgieRJ4Xp8Gl+stC/MxiP1YfoO

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 33 IoCs

flow	pid	Process
6	1028	wscript.exe
7	1672	wscript.exe
8	1084	wscript.exe
15	1672	wscript.exe
21	1672	wscript.exe
22	1672	wscript.exe
26	1028	wscript.exe
30	1084	wscript.exe
34	1672	wscript.exe
36	1672	wscript.exe
38	1672	wscript.exe
45	1672	wscript.exe
48	1028	wscript.exe
49	1084	wscript.exe
50	1672	wscript.exe
53	1672	wscript.exe
54	1672	wscript.exe
55	1672	wscript.exe
56	1028	wscript.exe
57	1084	wscript.exe
58	1672	wscript.exe
60	1672	wscript.exe
61	1672	wscript.exe
62	1672	wscript.exe
63	1028	wscript.exe
64	1084	wscript.exe
65	1672	wscript.exe
66	1672	wscript.exe
67	1672	wscript.exe
68	1672	wscript.exe
69	1028	wscript.exe
70	1084	wscript.exe
71	1672	wscript.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	wscript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 5 IoCs

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

Adds Run key to start application 2 TTPs 8 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\test = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\test.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\test = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\test.js\""	wscript.exe
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\test = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\test.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\test = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\test.js\""	wscript.exe
Key created	\REGISTRY\MACHINE\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 6 IoCs

description	pid	Process	procid_target
PID 4784 wrote to memory of 1028	4784	wscript.exe	81
PID 4784 wrote to memory of 1028	4784	wscript.exe	81
PID 4784 wrote to memory of 1672	4784	wscript.exe	82
PID 4784 wrote to memory of 1672	4784	wscript.exe	82
PID 1672 wrote to memory of 1084	1672	wscript.exe	83
PID 1672 wrote to memory of 1084	1672	wscript.exe	83

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\test.js
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4784
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\ZVDUbxSgAX.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  PID:1028
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\test.js"
  2⤵
  - Blocklisted process makes network request
  - Checks computer location settings
  - Drops startup file
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:1672
- - C:\Windows\System32\wscript.exe
    "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\ZVDUbxSgAX.js"
    3⤵
    - Blocklisted process makes network request
    - Drops startup file
    PID:1084

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ZVDUbxSgAX.js

Filesize
209KB

MD5
317f5e88c459ca95d712ff48993c684d

SHA1
f88d0ab3a59a54a5902e96f4aa11f73f26b9a01f

SHA256
a6d84d791efafee0828d9274a31dc208b93c2b662da97d6c32af5b03f74db296

SHA512
49ab4dc8a5a8718bd9089681bca3ab27ab4de7c6d4875ceae34009a764c68ef6ed6a51a35b8b0f7e79e423538376639bf26ec264c0e6c5dd81248fd5ece33e0a

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\test.js

Filesize
609KB

MD5
0dd3d7d195a7d45f24c1f86c25b8bd73

SHA1
cb4142317dc5ca92ba2eee9aecc8809d34276ce4

SHA256
cc17a222a8b6e268ef29c4e4de39390b77f23fc6c45ea21dc9191ac45f15aea6

SHA512
63f0093605b0a4632a123dba5d999462025a6d99f9d2a310c53e0ab255526a297d3b370fae39c1f4b52ef1c591880fa90b0c45ab2fe8686f122c5c56b73023d0

Download Submit
C:\Users\Admin\AppData\Roaming\ZVDUbxSgAX.js

Filesize
209KB

MD5
317f5e88c459ca95d712ff48993c684d

SHA1
f88d0ab3a59a54a5902e96f4aa11f73f26b9a01f

SHA256
a6d84d791efafee0828d9274a31dc208b93c2b662da97d6c32af5b03f74db296

SHA512
49ab4dc8a5a8718bd9089681bca3ab27ab4de7c6d4875ceae34009a764c68ef6ed6a51a35b8b0f7e79e423538376639bf26ec264c0e6c5dd81248fd5ece33e0a

Download Submit
C:\Users\Admin\AppData\Roaming\ZVDUbxSgAX.js

Filesize
209KB

MD5
317f5e88c459ca95d712ff48993c684d

SHA1
f88d0ab3a59a54a5902e96f4aa11f73f26b9a01f

SHA256
a6d84d791efafee0828d9274a31dc208b93c2b662da97d6c32af5b03f74db296

SHA512
49ab4dc8a5a8718bd9089681bca3ab27ab4de7c6d4875ceae34009a764c68ef6ed6a51a35b8b0f7e79e423538376639bf26ec264c0e6c5dd81248fd5ece33e0a

Download Submit
C:\Users\Admin\AppData\Roaming\test.js

Filesize
609KB

MD5
0dd3d7d195a7d45f24c1f86c25b8bd73

SHA1
cb4142317dc5ca92ba2eee9aecc8809d34276ce4

SHA256
cc17a222a8b6e268ef29c4e4de39390b77f23fc6c45ea21dc9191ac45f15aea6

SHA512
63f0093605b0a4632a123dba5d999462025a6d99f9d2a310c53e0ab255526a297d3b370fae39c1f4b52ef1c591880fa90b0c45ab2fe8686f122c5c56b73023d0

Download Submit

Analysis

Sharing