vjw0rm | 16feda82f86ae7863bd19b0d893b737578206810a0e4366b45150b2c48aa73f4

General

Target

dc4097eadf7729f28635a6b37f9c2c74.jar
Size

128KB
MD5

dc4097eadf7729f28635a6b37f9c2c74
SHA1

78e690f2642201cbb7a9a77075ed616a80118e84
SHA256

16feda82f86ae7863bd19b0d893b737578206810a0e4366b45150b2c48aa73f4
SHA512

f0212dd3372bf676a666b7af33f78270cd7ef9c958e24f218d1ecab7b4ebfcc8399c03b962509846d9ff3d8ffd074009d23dd3fe425e6aa4c6985942dc6eed8e
SSDEEP

3072:IQyD+j9CG5q5TkzxA94o4XjobqedHHrvR+kG4mbjLHW0t/Vdjqa:IQoY9t5mTuxA9gj3edHHrv0bjLHW0t/5

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-1-5-21-3808065738-1666277613-1125846146-1000\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\otOJexNvvn.js	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\otOJexNvvn.js	WScript.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2344	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-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\otOJexNvvn.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-1-5-21-3808065738-1666277613-1125846146-1000_Classes\Local Settings	wscript.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4636 wrote to memory of 2344	4636	java.exe	104
PID 4636 wrote to memory of 2344	4636	java.exe	104
PID 4636 wrote to memory of 1336	4636	java.exe	107
PID 4636 wrote to memory of 1336	4636	java.exe	107
PID 1336 wrote to memory of 1256	1336	wscript.exe	109
PID 1336 wrote to memory of 1256	1336	wscript.exe	109
PID 1336 wrote to memory of 4332	1336	wscript.exe	110
PID 1336 wrote to memory of 4332	1336	wscript.exe	110

C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\dc4097eadf7729f28635a6b37f9c2c74.jar
1⤵
- Suspicious use of WriteProcessMemory
PID:4636
- 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:2344
- C:\Windows\SYSTEM32\wscript.exe
  wscript C:\Users\Admin\[output].js
  2⤵
  - Checks computer location settings
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1336
- - C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\otOJexNvvn.js"
    3⤵
    - Drops startup file
    - Adds Run key to start application
    PID:1256
- - 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\kasvkabzt.txt"
    3⤵
    PID:4332

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1340 --field-trial-handle=2356,i,13261194862334667799,7441241219475888176,262144 --variations-seed-version /prefetch:8
1⤵
PID:5020

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
fb7089e01e1d2bd267970426b9bd5014

SHA1
a1809175380a3a4cb2e80314f23c37a88d850cbf

SHA256
77893801681450e4067547ad29ee4a32848da4b0af382a1dc291562cdce213af

SHA512
98da8227c8845f0cc8281b3bb143b76eb06a051db38fd9a4fc64f5c542a6d1bb5f824d70d7865afc5b889a6be05e6bcbe76c887b3c2c2825c07751f7c90fbacc

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

Filesize
92KB

MD5
06f61cd3d0cdf9257fcdac6483d4c1ba

SHA1
f4eec20fdbc68dbdd8bb5fd1dfecd918b099ef2f

SHA256
424ba40767618afade696d3714c1ba1960ff91e3bc1658fa510cd2332baf2a2f

SHA512
9aa7d19fb9999d0414d2399e14ccf43b66cbd6a1bf54be6538b6a0a9e9ac096bdc065a43e4d776ed5cd01a14562446fcd535979b0756781e132e13b27b575657

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

Filesize
9KB

MD5
730e1246285921eac566caa6a0c9b663

SHA1
2e508ef96d92608971061ff76b520f141a049e78

SHA256
aba5bc2432ee098aa4a30e4310ee1a300db7bb28dd4220ebc47f17aed7a17413

SHA512
0524474a34a89b4eafb375567b82229f0551e5aedc5ba8b9475397d395370ec84499ff7bcd1dd0698e5ea7300a27560eaeec0824ebc3edc49267326ee843b281

Download Submit
C:\Users\Admin\[output].js

Filesize
200KB

MD5
9da6b45d17e4c0ef80df356e1a7e6bdf

SHA1
5bf501a2ce339671a28d1ecea943c5bb817962b6

SHA256
1d61ac748d5d297ca8fa771d12a1c79626c6e2c217a8a349b4ade54c09ae589b

SHA512
f4249a1bc09eff66e058a736cbae688c6f7a56391f0fdaaca0056a94098442761e12022c10870a8a5cac99d6af51daab747244bb4dfbc33a89fef1f74f12a788

Download Submit
memory/4332-25-0x0000025BA6390000-0x0000025BA7390000-memory.dmp

Filesize
16.0MB

Download
memory/4332-33-0x0000025BA4D50000-0x0000025BA4D51000-memory.dmp

Filesize
4KB

Download
memory/4332-44-0x0000025BA6390000-0x0000025BA7390000-memory.dmp

Filesize
16.0MB

Download
memory/4332-50-0x0000025BA6390000-0x0000025BA7390000-memory.dmp

Filesize
16.0MB

Download
memory/4332-55-0x0000025BA4D50000-0x0000025BA4D51000-memory.dmp

Filesize
4KB

Download
memory/4332-59-0x0000025BA6390000-0x0000025BA7390000-memory.dmp

Filesize
16.0MB

Download
memory/4332-62-0x0000025BA6390000-0x0000025BA7390000-memory.dmp

Filesize
16.0MB

Download
memory/4332-130-0x0000025BA6390000-0x0000025BA7390000-memory.dmp

Filesize
16.0MB

Download
memory/4332-131-0x0000025BA6390000-0x0000025BA7390000-memory.dmp

Filesize
16.0MB

Download
memory/4636-2-0x000001EC80000000-0x000001EC81000000-memory.dmp

Filesize
16.0MB

Download
memory/4636-13-0x000001ECFF970000-0x000001ECFF971000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads