vjw0rm | 877d4d148ddd634c30c781a9da721cec54f83c1cec9ff7995f94ad100c2aedd8

General

Target

b66fe74731233f91d26f03d3ac6c0fe3.js
Size

905KB
MD5

b66fe74731233f91d26f03d3ac6c0fe3
SHA1

450a3eb0ec332e643658bc6a8a5a94fb4b0f41b9
SHA256

877d4d148ddd634c30c781a9da721cec54f83c1cec9ff7995f94ad100c2aedd8
SHA512

c63c7eba2692232e4f8a84f2a6945adcf24187ff3d9ec8f7be29e51b3c2ff3c710b3d2cc6604434c2a6359801301e6fb5fb0f33b0fe1848d1c7d73bdc6f019c5
SSDEEP

24576:zX+2dFxSnM2MtDgnpSZHTWme0+zNh4dxQ3SK:NdOutExfPSK

Score

10^/10

vjw0rm discovery persistence trojan worm

Malware Config

Signatures

Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm

Checks computer location settings 2 TTPs 1 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-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 2 IoCs

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

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2140	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\HXpBUBTtZF.js\""	WScript.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000_Classes\Local Settings	wscript.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
628	javaw.exe
2024	java.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3644 wrote to memory of 1772	3644	wscript.exe	88
PID 3644 wrote to memory of 1772	3644	wscript.exe	88
PID 3644 wrote to memory of 628	3644	wscript.exe	89
PID 3644 wrote to memory of 628	3644	wscript.exe	89
PID 628 wrote to memory of 2140	628	javaw.exe	91
PID 628 wrote to memory of 2140	628	javaw.exe	91
PID 628 wrote to memory of 2024	628	javaw.exe	93
PID 628 wrote to memory of 2024	628	javaw.exe	93

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\b66fe74731233f91d26f03d3ac6c0fe3.js
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3644
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\HXpBUBTtZF.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:1772
- C:\Program Files\Java\jre-1.8\bin\javaw.exe
  "C:\Program Files\Java\jre-1.8\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\dmaxpuarw.txt"
  2⤵
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:628
- - C:\Windows\system32\icacls.exe
    C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
    3⤵
    - Modifies file permissions
    PID:2140
- - C:\Program Files\Java\jre-1.8\bin\java.exe
    "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar C:\Users\Admin\AppData\Local\Temp\_0.57317267645937223680139123917565559.class
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2024

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

File and Directory Permissions Modification

Modify Registry

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:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp

Filesize
46B

MD5
d6003ea6fb4cd9bf8104f53671f0c65f

SHA1
5f91eefa838c6bff48bcb359045c01f17d0bd1fc

SHA256
9bd8b8f1e13a4853a2cef21d925b14adc0a1f8ad1583e2bea679b70d8f419516

SHA512
58ec2379358d5160a36845c08e3654ad0d149c82be794f06de5ac2e4e535c919280fecabc00bacce43a4699c3e6ecbfc71892d6d364fe86eb2919516a2d5b5cc

Download Submit
C:\Users\Admin\AppData\Local\Temp\_0.57317267645937223680139123917565559.class

Filesize
241KB

MD5
781fb531354d6f291f1ccab48da6d39f

SHA1
9ce4518ebcb5be6d1f0b5477fa00c26860fe9a68

SHA256
97d585b6aff62fb4e43e7e6a5f816dcd7a14be11a88b109a9ba9e8cd4c456eb9

SHA512
3e6630f5feb4a3eb1dac7e9125ce14b1a2a45d7415cf44cea42bc51b2a9aa37169ee4a4c36c888c8f2696e7d6e298e2ad7b2f4c22868aaa5948210eb7db220d8

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

Filesize
11KB

MD5
150efb51ec05bc4a9bbb525397f5f741

SHA1
be85f05d5a074fa98232cf993fc6f5a7dac9f880

SHA256
b97357a2422085a44feea1491f88a44e3a9080cef0330a70b6d9cc0f0ed3cd19

SHA512
e45f7012eb013e53b9a49e239bf7c07a81a08587501674fdb0e6f048edfa904b01138da374ce51b131f1bda952761cc64e317fe453e76d8cf099868a4ad301e5

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-566096764-1992588923-1249862864-1000\83aa4cc77f591dfc2374580bbd95f6ba_2935d258-24ea-4115-bc36-d204b07adb8d

Filesize
45B

MD5
c8366ae350e7019aefc9d1e6e6a498c6

SHA1
5731d8a3e6568a5f2dfbbc87e3db9637df280b61

SHA256
11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238

SHA512
33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd

Download Submit
C:\Users\Admin\AppData\Roaming\dmaxpuarw.txt

Filesize
473KB

MD5
ca4cf45e9499c04f77d54212bb0805c0

SHA1
296688e7207ddbdd7f0e5096ae9c1993b5ff130b

SHA256
f8255759c5da02e9b0de11ea93f90f14fc34bb8cd839ff7c4a53a86438b11344

SHA512
90075be1e95bacdb020504304b79cc1e2fca3eadcffd87d00c16d95ce93922e3b1835b93d0f91874dcfb3dd17b8dafad65c3a258bd95a0e05a237cd4f1691d0b

Download Submit
memory/628-43-0x000002AC494E0000-0x000002AC4A4E0000-memory.dmp

Filesize
16.0MB

Download
memory/628-95-0x000002AC47C10000-0x000002AC47C11000-memory.dmp

Filesize
4KB

Download
memory/628-97-0x000002AC47C10000-0x000002AC47C11000-memory.dmp

Filesize
4KB

Download
memory/628-23-0x000002AC47C10000-0x000002AC47C11000-memory.dmp

Filesize
4KB

Download
memory/628-24-0x000002AC47C10000-0x000002AC47C11000-memory.dmp

Filesize
4KB

Download
memory/628-11-0x000002AC494E0000-0x000002AC4A4E0000-memory.dmp

Filesize
16.0MB

Download
memory/628-62-0x000002AC494E0000-0x000002AC4A4E0000-memory.dmp

Filesize
16.0MB

Download
memory/628-71-0x000002AC494E0000-0x000002AC4A4E0000-memory.dmp

Filesize
16.0MB

Download
memory/628-73-0x000002AC47C10000-0x000002AC47C11000-memory.dmp

Filesize
4KB

Download
memory/628-80-0x000002AC47C10000-0x000002AC47C11000-memory.dmp

Filesize
4KB

Download
memory/2024-47-0x0000022FA5E50000-0x0000022FA5E51000-memory.dmp

Filesize
4KB

Download
memory/2024-81-0x0000022FA5E50000-0x0000022FA5E51000-memory.dmp

Filesize
4KB

Download
memory/2024-96-0x0000022FA5E50000-0x0000022FA5E51000-memory.dmp

Filesize
4KB

Download
memory/2024-27-0x0000022FA7720000-0x0000022FA8720000-memory.dmp

Filesize
16.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads