vjw0rm | 8f6731af469a59bf034f934876708ac2f9fc17b111a94e0ce750f56d6d927d42

General

Target

9674d32d4f08b3ab045d81a9d64c5e57.jar
Size

125KB
MD5

9674d32d4f08b3ab045d81a9d64c5e57
SHA1

59f7b5a07e7877fe54c1776e4007cfef26f5c050
SHA256

8f6731af469a59bf034f934876708ac2f9fc17b111a94e0ce750f56d6d927d42
SHA512

32702cdfdcd30ee7738749c9fa492cccfef15159bf7d3ed669ce10830700cc761c2a8f8006f13ba64c2892356b716f186a07a4128e4f402c360eb05b90e6dcce
SSDEEP

3072:SjoGR9+qynt/8Ky6nLu8fUvg740E+pJcf+LMb+6B0j:SuabY9Uvkd73cGLY+6B0j

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-1-5-21-768304381-2824894965-3840216961-1000\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\LlIVVKFSWA.js	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\LlIVVKFSWA.js	WScript.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1348	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-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\B02N3ZE1UL = "\"C:\\Users\\Admin\\AppData\\Roaming\\LlIVVKFSWA.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\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\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\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\dll\ntdll.pdb	javaw.exe
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\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

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-1-5-21-768304381-2824894965-3840216961-1000_Classes\Local Settings	wscript.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4288 wrote to memory of 1348	4288	java.exe	85
PID 4288 wrote to memory of 1348	4288	java.exe	85
PID 4288 wrote to memory of 5000	4288	java.exe	87
PID 4288 wrote to memory of 5000	4288	java.exe	87
PID 5000 wrote to memory of 3360	5000	wscript.exe	88
PID 5000 wrote to memory of 3360	5000	wscript.exe	88
PID 5000 wrote to memory of 372	5000	wscript.exe	89
PID 5000 wrote to memory of 372	5000	wscript.exe	89

C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\9674d32d4f08b3ab045d81a9d64c5e57.jar
1⤵
- Suspicious use of WriteProcessMemory
PID:4288
- C:\Windows\system32\icacls.exe
  C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
  2⤵
  - Modifies file permissions
  PID:1348
- C:\Windows\SYSTEM32\wscript.exe
  wscript C:\Users\Admin\oefaqnycnu.js
  2⤵
  - Checks computer location settings
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:5000
- - C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\LlIVVKFSWA.js"
    3⤵
    - Drops startup file
    - Adds Run key to start application
    PID:3360
- - 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\qubkvgud.txt"
    3⤵
    - Drops file in Program Files directory
    PID:372

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

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Downloads

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

Filesize
46B

MD5
6426b4a08a8d865aa295b0f2bc071497

SHA1
2ac940f3998c94d25c7935c0d2f35571fa80be81

SHA256
81a180fe703ede7b6d9e361feda2315c7a3329ed5a3fc93262f7036975bb6ce3

SHA512
3d01dbb44cea26afffdfb4c1a2b587e94afca596fe1c935f5a7204a7da511bba493f5153927b2e52dd9407989b2cba190e867b657504c9a3dcb7277439de9db8

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

Filesize
5KB

MD5
bf38e508a2c53470c0a1dfa984803e4a

SHA1
0604bb9412bda7cc8c5b33f9912b26b1286c63b2

SHA256
252d415a3f81f40f59bd24621e53795838fade11a98f4714968ab102111e824e

SHA512
c275eb92d075ca2afcb107ee769ca6f51b4a678814bcd108b19f916bdd1c8927619841d972fbaf03e9c41b00eebb9f6209aaed14404cfd110ceff96b9781f2d7

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

Filesize
92KB

MD5
fe8f4acd85fac3ad2222e579899cd0db

SHA1
e74ec1ad9e53f30af7a7ad23f77461159ad1be7a

SHA256
fd916a78e37fece7471b94a22fc992ed43a760f8590637d8e23e53f36993ee09

SHA512
c1fd8d53dbc24f287e01b0d7c411a7797656ca09719c6046cea73ed9bfc9437c0c2068ae6b34a4b2f926ee25f2896590a493339c5ffc99b90dfa00141b674c21

Download Submit
C:\Users\Admin\oefaqnycnu.js

Filesize
191KB

MD5
52d62079da641a43991dc690c6e79fc0

SHA1
315742580e93ed16d06d992ed1778fa9892a2c81

SHA256
30bed001041f49d3c83b99b0453cfc5517f0b9e37c899422fdee6b4674ca8faa

SHA512
81bf2962af957a980ddc1c44e38a80267688281b89862c4f8ad07d534244ccf4becc871e5981e0cfb3d4e92ea9bf684b2381a174ff99ac384e986b4324b3a9fa

Download Submit
memory/372-39-0x000002AA80000000-0x000002AA81000000-memory.dmp

Filesize
16.0MB

Download
memory/372-26-0x000002AA80000000-0x000002AA81000000-memory.dmp

Filesize
16.0MB

Download
memory/372-34-0x000002AAF82E0000-0x000002AAF82E1000-memory.dmp

Filesize
4KB

Download
memory/372-53-0x000002AA80000000-0x000002AA81000000-memory.dmp

Filesize
16.0MB

Download
memory/372-62-0x000002AA80000000-0x000002AA81000000-memory.dmp

Filesize
16.0MB

Download
memory/372-65-0x000002AA80000000-0x000002AA81000000-memory.dmp

Filesize
16.0MB

Download
memory/372-63-0x000002AAF82E0000-0x000002AAF82E1000-memory.dmp

Filesize
4KB

Download
memory/372-70-0x000002AA80000000-0x000002AA81000000-memory.dmp

Filesize
16.0MB

Download
memory/372-84-0x000002AAF82E0000-0x000002AAF82E1000-memory.dmp

Filesize
4KB

Download
memory/372-85-0x000002AAF82E0000-0x000002AAF82E1000-memory.dmp

Filesize
4KB

Download
memory/372-93-0x000002AAF82E0000-0x000002AAF82E1000-memory.dmp

Filesize
4KB

Download
memory/4288-14-0x000001E0EACA0000-0x000001E0EACA1000-memory.dmp

Filesize
4KB

Download
memory/4288-3-0x000001E0EACC0000-0x000001E0EBCC0000-memory.dmp

Filesize
16.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads