djvu | 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04

General

Target

0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
Size

707KB
MD5

1534a3acfde4ce180b5e9619954df27f
SHA1

8d4ceb341b7ac57aab2f94236e7e8b1ede75051f
SHA256

0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04
SHA512

ffedda4d8936eed91291fe79146b508eaf4d3bf8c378ae1f946ff1a45844597183ce87f974f4acef7f8956b3bb8afbfe1c339ccf9b9a1374f7a80a8a48f86373
SSDEEP

12288:HUsJbvW1Haefnh1S3rKZGvRemBKgeTZA63TXNbL0IqrMNuDuEcQuB2t79:HUs9hq6KErQDVA63TdBqrMNcuEcJ6

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://cajgtus.com/test2/get.php

Attributes

extension
.vehu
offline_id
EGfa5svnSGFJka7LZBQoqff0QtO1IpTauoDvGvt1
payload_url
http://sdfjhuz.com/dl/build2.exe

http://cajgtus.com/files/1/build3.exe
ransomnote
ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. Do not ask assistants from youtube and recovery data sites for help in recovering your data. They can use your free decryption quota and scam you. Our contact is emails in this text document only. You can get and look video overview decrypt tool: https://wetransfer.com/downloads/33b490a613f49fa190924f199d2c079e20240512191214/caaf73 Price of private key and decrypt software is $999. Discount 50% available if you contact us first 72 hours, that's price for you is $499. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0872PsawqS

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 13 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2072-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2900-5-0x0000000004660000-0x000000000477B000-memory.dmp	family_djvu
behavioral1/memory/2072-7-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2072-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2072-28-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2916-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2916-45-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2916-46-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2916-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2916-52-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2916-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2916-50-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2916-54-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

872 icacls.exe

pid	process
872	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\9e8a3329-ccb1-4dd4-a6fb-3ae8f0e9405e\\0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe\" --AutoStart"	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe

Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

3 api.2ip.ua
4 api.2ip.ua
9 api.2ip.ua

flow	ioc
3	api.2ip.ua
4	api.2ip.ua
9	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

Processes:

0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe

description	pid	process	target process
PID 2900 set thread context of 2072	2900	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
PID 2488 set thread context of 2916	2488	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe

pid	process
2072	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
2916	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe

C:\Users\Admin\AppData\Local\Temp\0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
"C:\Users\Admin\AppData\Local\Temp\0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2900

C:\Users\Admin\AppData\Local\Temp\0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
"C:\Users\Admin\AppData\Local\Temp\0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe"
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2072

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\9e8a3329-ccb1-4dd4-a6fb-3ae8f0e9405e" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:872

C:\Users\Admin\AppData\Local\Temp\0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
"C:\Users\Admin\AppData\Local\Temp\0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2488

C:\Users\Admin\AppData\Local\Temp\0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
"C:\Users\Admin\AppData\Local\Temp\0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:2916

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize
1KB

MD5
6728aea2631b86a76c237508d8ba9b55

SHA1
7a670f95cac088313f7558869162fe01c6dc0ec9

SHA256
e1dd7380c6df33cd5702b032e0e359029d3ef7630f06ceb42cfdc154fd0baf7b

SHA512
533080cd1ec40b8530cad5c9914e0a5156d225f7392283ed2607eda4f1db4a6930002274060ed9130a6f634222c2e15818e16a50579cfe7f5274d028d31212f5

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize
724B

MD5
8202a1cd02e7d69597995cabbe881a12

SHA1
8858d9d934b7aa9330ee73de6c476acf19929ff6

SHA256
58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5

SHA512
97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize
410B

MD5
398e4cf970450c9a9f2a1313cd79b84f

SHA1
0da79a16a832cdd74d4a277a157ff70d429d611c

SHA256
0bfe6bd43ad0d013b6bbf900b4d0584fef38fcd5b5b5202abeeaa425feeec895

SHA512
3bffc5fbe3ecb9dae5b4ae3d117bfa3c5edd2bba9de9ace42620731154d6202c06f1481c9a2073965f830d38ace618494493fdacfd715bb6c6efd2b8ea775bf7

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize
344B

MD5
8537725fa1ea038afc1ba97d6983b237

SHA1
753f1df5cd9ebef97d3a9cc87e30219d97468a16

SHA256
2832e3455f60766217c82f6da138e7af729a86e240a4b8bda383a5eab25c9e6c

SHA512
ad12ce9ad81ae9b72744477b5a1d2702c34299b9fcfd574f79e8d0b5911a503d28c1458092609ab097478b7afce65a8a810865ad69bf904b60221e2c377f5872

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize
392B

MD5
eee1d2b836066ddb2276c87fe3a0c2d9

SHA1
b7aa8cf35131503fe3ba54d9c9821638c9f25006

SHA256
ed98021bea415469b88eae821a22b0a6b9b0388e3e905efa940cb0859792e441

SHA512
a3435aa9a5f6c1382d100ea0022969022c04ede2e71cb6c833e4fd185c2c3107fa2119a75d5fc48a06cb26422507abd737fa5bfd9033963475e17dd7d4d47de3

Download Submit
C:\Users\Admin\AppData\Local\9e8a3329-ccb1-4dd4-a6fb-3ae8f0e9405e\0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
Filesize
707KB

MD5
1534a3acfde4ce180b5e9619954df27f

SHA1
8d4ceb341b7ac57aab2f94236e7e8b1ede75051f

SHA256
0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04

SHA512
ffedda4d8936eed91291fe79146b508eaf4d3bf8c378ae1f946ff1a45844597183ce87f974f4acef7f8956b3bb8afbfe1c339ccf9b9a1374f7a80a8a48f86373

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab2414.tmp
Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
memory/2072-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2072-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2072-28-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2072-1-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2072-7-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2488-29-0x00000000044C0000-0x0000000004552000-memory.dmp

Filesize
584KB

Download
memory/2900-0-0x0000000000220000-0x00000000002B2000-memory.dmp

Filesize
584KB

Download
memory/2900-5-0x0000000004660000-0x000000000477B000-memory.dmp

Filesize
1.1MB

Download
memory/2900-4-0x0000000000220000-0x00000000002B2000-memory.dmp

Filesize
584KB

Download
memory/2916-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2916-45-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2916-46-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2916-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2916-52-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2916-53-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2916-50-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2916-54-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

description	pid	process	target process
PID 2900 wrote to memory of 2072	2900	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
PID 2900 wrote to memory of 2072	2900	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
PID 2900 wrote to memory of 2072	2900	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
PID 2900 wrote to memory of 2072	2900	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
PID 2900 wrote to memory of 2072	2900	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
PID 2900 wrote to memory of 2072	2900	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
PID 2900 wrote to memory of 2072	2900	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
PID 2900 wrote to memory of 2072	2900	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
PID 2900 wrote to memory of 2072	2900	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
PID 2900 wrote to memory of 2072	2900	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
PID 2900 wrote to memory of 2072	2900	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
PID 2072 wrote to memory of 872	2072	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe	icacls.exe
PID 2072 wrote to memory of 872	2072	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe	icacls.exe
PID 2072 wrote to memory of 872	2072	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe	icacls.exe
PID 2072 wrote to memory of 872	2072	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe	icacls.exe
PID 2072 wrote to memory of 2488	2072	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
PID 2072 wrote to memory of 2488	2072	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
PID 2072 wrote to memory of 2488	2072	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
PID 2072 wrote to memory of 2488	2072	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
PID 2488 wrote to memory of 2916	2488	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
PID 2488 wrote to memory of 2916	2488	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
PID 2488 wrote to memory of 2916	2488	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
PID 2488 wrote to memory of 2916	2488	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
PID 2488 wrote to memory of 2916	2488	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
PID 2488 wrote to memory of 2916	2488	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
PID 2488 wrote to memory of 2916	2488	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
PID 2488 wrote to memory of 2916	2488	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
PID 2488 wrote to memory of 2916	2488	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
PID 2488 wrote to memory of 2916	2488	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
PID 2488 wrote to memory of 2916	2488	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe	0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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