vjw0rm | 6915f06eb48cc9d71dbc136313c6a935b36844641f9b2ae1e85e08ccc74d8e73

General

Target

7371063acbfacc81ffdeaeea7e75eb99.js
Size

201KB
MD5

7371063acbfacc81ffdeaeea7e75eb99
SHA1

28ee63662467f1ab7c682eec227b66db7ccadeca
SHA256

6915f06eb48cc9d71dbc136313c6a935b36844641f9b2ae1e85e08ccc74d8e73
SHA512

8b3bebb2cd6f97a49f98e3072393ea6ad2f46e0f4ba4a25b1293c10b1fe75e192800d6b47c60b03680934517e35d2dc6c4786f0122785675e1cc2e247fa292dd
SSDEEP

3072:g4XSfd1uBfPamtsz6VVKDllWtfjKNan1a4Bbn8PUyBJAN:ofPK1fVaWhONi1J78PMN

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-1-5-21-3803511929-1339359695-2191195476-1000\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\PNIsXqzyQf.js	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PNIsXqzyQf.js	WScript.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4352	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-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\PNIsXqzyQf.js\""	WScript.exe

Drops file in Program Files directory 12 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Java\jre-1.8\bin\symbols\dll\ntdll.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\dll\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\symbols\dll\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\symbols\dll\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\dll\ntdll.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\symbols\dll\ntdll.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\ntdll.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\dll\ntdll.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\dll\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\ntdll.pdb	javaw.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-1-5-21-3803511929-1339359695-2191195476-1000_Classes\Local Settings	wscript.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4416 wrote to memory of 2172	4416	wscript.exe	85
PID 4416 wrote to memory of 2172	4416	wscript.exe	85
PID 4416 wrote to memory of 2500	4416	wscript.exe	86
PID 4416 wrote to memory of 2500	4416	wscript.exe	86
PID 2500 wrote to memory of 4352	2500	javaw.exe	89
PID 2500 wrote to memory of 4352	2500	javaw.exe	89

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\7371063acbfacc81ffdeaeea7e75eb99.js
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4416
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\PNIsXqzyQf.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:2172
- 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\rvogfqnfmk.txt"
  2⤵
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:2500
- - 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:4352

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
e275d5e743e5cdf7fc5688dceb8019c2

SHA1
ade3782f68023c88bbba0f15502673a127cbacde

SHA256
836fb0df6a17a0f8489cf5ced0d0984ce2bf9e04b6bfba61ce451acae6bf6efd

SHA512
8dbdf4f6e3a5a5e951338d646018781ec6faaa93f217428ba9a37301edd4fa23158fe854500ddccba5a9af327b461c1a4e98af0d4903bc6517ffd2d5dbf0e662

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

Filesize
9KB

MD5
93451bfa41b44af1f45d80b9feb2a73d

SHA1
ea15542e8ebf859d751de6af1af3966d73a16f1a

SHA256
9ee8fb95e2771cf84659aa10cfa773a90ba5d58b577f489ec808d6fce7fbd6cb

SHA512
145be16dfce485c7c32077689c581e06f8bc1af9bc0f1e2fb8e02ddd7eafc11f5fa8a7a263e09bde4ee89d68bee4486cc8ccd939a15113b467ccadc42e4a1cbd

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

Filesize
92KB

MD5
06f61cd3d0cdf9257fcdac6483d4c1ba

SHA1
f4eec20fdbc68dbdd8bb5fd1dfecd918b099ef2f

SHA256
424ba40767618afade696d3714c1ba1960ff91e3bc1658fa510cd2332baf2a2f

SHA512
9aa7d19fb9999d0414d2399e14ccf43b66cbd6a1bf54be6538b6a0a9e9ac096bdc065a43e4d776ed5cd01a14562446fcd535979b0756781e132e13b27b575657

Download Submit
memory/2500-35-0x000001B4CBB10000-0x000001B4CBB11000-memory.dmp

Filesize
4KB

Download
memory/2500-24-0x000001B4CD360000-0x000001B4CE360000-memory.dmp

Filesize
16.0MB

Download
memory/2500-26-0x000001B4CBB10000-0x000001B4CBB11000-memory.dmp

Filesize
4KB

Download
memory/2500-10-0x000001B4CD360000-0x000001B4CE360000-memory.dmp

Filesize
16.0MB

Download
memory/2500-39-0x000001B4CD360000-0x000001B4CE360000-memory.dmp

Filesize
16.0MB

Download
memory/2500-52-0x000001B4CD360000-0x000001B4CE360000-memory.dmp

Filesize
16.0MB

Download
memory/2500-56-0x000001B4CD360000-0x000001B4CE360000-memory.dmp

Filesize
16.0MB

Download
memory/2500-60-0x000001B4CD360000-0x000001B4CE360000-memory.dmp

Filesize
16.0MB

Download
memory/2500-59-0x000001B4CBB10000-0x000001B4CBB11000-memory.dmp

Filesize
4KB

Download
memory/2500-87-0x000001B4CBB10000-0x000001B4CBB11000-memory.dmp

Filesize
4KB

Download
memory/2500-91-0x000001B4CBB10000-0x000001B4CBB11000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads