vjw0rm | 1e4b0b6254e8f64254e54a9b587c58b1b315d3778f2f359c1e2fa8a5eedf2832

General

Target

29e6358dcc6c6518ff978ed2e06a097f.js
Size

231KB
MD5

29e6358dcc6c6518ff978ed2e06a097f
SHA1

963d7a5020461bf138b723518c4b606599ad18b4
SHA256

1e4b0b6254e8f64254e54a9b587c58b1b315d3778f2f359c1e2fa8a5eedf2832
SHA512

25310412f2e6b727cc990a17a6c6435a5c2380245beeae7fdfe45748bb7858d48910da032bf277322b7639bfb49c247f066aa3030758b344eb4403f88a9e4c62
SSDEEP

6144:IF6rpMoVfIVW0q6+wQdb+MMeRcvLEGAaw731WB:IF0Tw7QdtMeRcvLEGAaA3g

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-1-5-21-3073191680-435865314-2862784915-1000\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\URivKZByzt.js	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\URivKZByzt.js	WScript.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2308	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-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\URivKZByzt.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-1-5-21-3073191680-435865314-2862784915-1000_Classes\Local Settings	wscript.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2864 wrote to memory of 4496	2864	wscript.exe	90
PID 2864 wrote to memory of 4496	2864	wscript.exe	90
PID 2864 wrote to memory of 4456	2864	wscript.exe	91
PID 2864 wrote to memory of 4456	2864	wscript.exe	91
PID 4456 wrote to memory of 2308	4456	javaw.exe	94
PID 4456 wrote to memory of 2308	4456	javaw.exe	94

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\29e6358dcc6c6518ff978ed2e06a097f.js
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2864
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\URivKZByzt.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:4496
- 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\xjhbatbrcn.txt"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4456
- - 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:2308

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

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Downloads

C:\Users\Admin\AppData\Roaming\URivKZByzt.js

Filesize
10KB

MD5
4fccb6c905ca75de32d215f44e5adf08

SHA1
a72402da433c6a2f4de9b9dfa2e9cd6b38ff754c

SHA256
d396e916d9ca8d1505a157a4eca9626f9a15be706f64b65e2e8c5859c7776eb5

SHA512
c05de1d95ee26a3f90424aa9acc89940d305c96aebc31815ace24096349b344920701848d8eea63b14471c391cbf6913d586eae0734f7bee25797fe42b5854ed

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

Filesize
107KB

MD5
d1abdb24c44f1ec93c4800f3128cf01f

SHA1
765a23589063a01d8c3e0b4e5615ac5d0ac475a6

SHA256
15ddd12f95653df0799fc8420b8d5d73361d3fd9a97237da094f4440ba108580

SHA512
659310fb4e2750cbb87ead008ffda551c6ce3296690c8747231b21ce8543961cecfbefb2c1cb9ba41f6fe87c60cd4f312549b1eab6039337514e2c18b529887f

Download Submit
memory/4456-9-0x000002AD80000000-0x000002AD81000000-memory.dmp

Filesize
16.0MB

Download
memory/4456-18-0x000002ADF60F0000-0x000002ADF60F1000-memory.dmp

Filesize
4KB

Download
memory/4456-27-0x000002AD80000000-0x000002AD81000000-memory.dmp

Filesize
16.0MB

Download
memory/4456-36-0x000002AD80000000-0x000002AD81000000-memory.dmp

Filesize
16.0MB

Download
memory/4456-42-0x000002ADF60F0000-0x000002ADF60F1000-memory.dmp

Filesize
4KB

Download
memory/4456-44-0x000002AD80000000-0x000002AD81000000-memory.dmp

Filesize
16.0MB

Download
memory/4456-55-0x000002AD80000000-0x000002AD81000000-memory.dmp

Filesize
16.0MB

Download
memory/4456-62-0x000002ADF60F0000-0x000002ADF60F1000-memory.dmp

Filesize
4KB

Download
memory/4456-64-0x000002AD80000000-0x000002AD81000000-memory.dmp

Filesize
16.0MB

Download
memory/4456-84-0x000002AD80000000-0x000002AD81000000-memory.dmp

Filesize
16.0MB

Download
memory/4456-89-0x000002AD80000000-0x000002AD81000000-memory.dmp

Filesize
16.0MB

Download
memory/4456-92-0x000002ADF60F0000-0x000002ADF60F1000-memory.dmp

Filesize
4KB

Download
memory/4456-99-0x000002ADF60F0000-0x000002ADF60F1000-memory.dmp

Filesize
4KB

Download
memory/4456-103-0x000002ADF60F0000-0x000002ADF60F1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads