Analysis
-
max time kernel
144s -
max time network
140s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
30-05-2024 08:21
Static task
static1
Behavioral task
behavioral1
Sample
e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe
Resource
win10v2004-20240426-en
General
-
Target
e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe
-
Size
997KB
-
MD5
85c3557bd4d4a5e3c26672d37d9eecce
-
SHA1
72c0e2ffd6719a5ec96860f62005268fc65240b6
-
SHA256
e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439
-
SHA512
827d6ee000fab819469d64feabe1d09531d35059fabf88439396a0e6869ce011eb0052fbf9ac822ecb3f2808f1db59db37989b6e9009b6fd26437b562d0b4d17
-
SSDEEP
24576:PB0Gu7q0prZLX5scDf7e8qRysanXQ7dyFc/L:PBzu7qgJpsEqpaXF
Malware Config
Extracted
djvu
http://sajdfue.com/test1/get.php
-
extension
.vook
-
offline_id
1eSPzWRaNslCgtjBZfL5pzvovoiaVI4IZSnvAwt1
-
payload_url
http://sdfjhuz.com/dl/build2.exe
http://sajdfue.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/3ed7a617738550b0a00c5aa231c0752020240316170955/d71ce1 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: 0857PsawqS
Signatures
-
Detected Djvu ransomware 14 IoCs
Processes:
resource yara_rule behavioral2/memory/2860-14-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2860-13-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2860-18-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2860-15-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1192-40-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2860-31-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1192-47-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1192-48-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1192-49-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1192-52-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1192-54-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1192-55-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1192-56-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1192-57-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
-
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe -
Modifies file permissions 1 TTPs 1 IoCs
-
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\a6d828ac-2b26-4328-a719-c515e60f6351\\e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe\" --AutoStart" e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.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 1 api.2ip.ua 3 api.2ip.ua 12 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
Processes:
e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exee303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exedescription pid process target process PID 4256 set thread context of 2860 4256 e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe PID 5024 set thread context of 1192 5024 e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exee303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exepid process 2860 e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe 2860 e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe 1192 e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe 1192 e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exee303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exee303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exedescription pid process target process PID 4256 wrote to memory of 2860 4256 e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe PID 4256 wrote to memory of 2860 4256 e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe PID 4256 wrote to memory of 2860 4256 e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe PID 4256 wrote to memory of 2860 4256 e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe PID 4256 wrote to memory of 2860 4256 e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe PID 4256 wrote to memory of 2860 4256 e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe PID 4256 wrote to memory of 2860 4256 e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe PID 4256 wrote to memory of 2860 4256 e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe PID 4256 wrote to memory of 2860 4256 e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe PID 4256 wrote to memory of 2860 4256 e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe PID 2860 wrote to memory of 2288 2860 e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe icacls.exe PID 2860 wrote to memory of 2288 2860 e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe icacls.exe PID 2860 wrote to memory of 2288 2860 e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe icacls.exe PID 2860 wrote to memory of 5024 2860 e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe PID 2860 wrote to memory of 5024 2860 e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe PID 2860 wrote to memory of 5024 2860 e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe PID 5024 wrote to memory of 1192 5024 e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe PID 5024 wrote to memory of 1192 5024 e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe PID 5024 wrote to memory of 1192 5024 e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe PID 5024 wrote to memory of 1192 5024 e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe PID 5024 wrote to memory of 1192 5024 e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe PID 5024 wrote to memory of 1192 5024 e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe PID 5024 wrote to memory of 1192 5024 e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe PID 5024 wrote to memory of 1192 5024 e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe PID 5024 wrote to memory of 1192 5024 e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe PID 5024 wrote to memory of 1192 5024 e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe"C:\Users\Admin\AppData\Local\Temp\e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe"C:\Users\Admin\AppData\Local\Temp\e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\a6d828ac-2b26-4328-a719-c515e60f6351" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
-
C:\Users\Admin\AppData\Local\Temp\e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe"C:\Users\Admin\AppData\Local\Temp\e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe"C:\Users\Admin\AppData\Local\Temp\e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EAFilesize
1KB
MD53aad0e0b63ea2e695fc7c66728e66a14
SHA17ef347e0f3b8142005a2b58b459aef7efe975955
SHA2569fdfce09257f87385d6ef10feea5f0d164ecd425ddd10ad0714bf1bc6feb5ef6
SHA5123cb287ef51c870e2847258ee983b9522aff217336b6b60096a7dd868a3a270bfe2df161e5c17df963ae9cc7c290892da373ec3904f93f8d8ee59e51ff4d16cef
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464Filesize
724B
MD58202a1cd02e7d69597995cabbe881a12
SHA18858d9d934b7aa9330ee73de6c476acf19929ff6
SHA25658f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5
SHA51297ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EAFilesize
410B
MD5ea90d741692c70e1093026257604242f
SHA1ad49538f1c7bca8e0851cb569f85e23ca5b36984
SHA256f53d930082c458ebb2a4c2544f88737fc6326da73bbdedeb289835ad759e07a9
SHA5123ecc2bb07bbe1249e884020f2a9498d13e8a3c27ec3f94952f04f8b95195e2d25e3e67c76a33e21755ba595286d62d82047b5ee4cca4cb18078c9912719ffde6
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464Filesize
392B
MD53ee9d259b8f3e9e698d9dadd4ad2d23a
SHA18bb0f40a7f55fdcc7567d0bd9fa875e27bbf57e9
SHA256a62022cdc79897bb09d9c499d27dc2fe3d234a6b9788680f50bc44dfb83e3594
SHA51229a3d0d5722679782eda64594eb74b089570ab9ea2b39c391e9c3d0ddd5f3d158fbd88b6055fd662a455f344d5e21180e92e69686bb12162dc79bee90df596bd
-
C:\Users\Admin\AppData\Local\a6d828ac-2b26-4328-a719-c515e60f6351\e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439.exeFilesize
997KB
MD585c3557bd4d4a5e3c26672d37d9eecce
SHA172c0e2ffd6719a5ec96860f62005268fc65240b6
SHA256e303f573dba83b3c0cf2d5d37633e576154d9b1d0cdf4fba37be8982f8b32439
SHA512827d6ee000fab819469d64feabe1d09531d35059fabf88439396a0e6869ce011eb0052fbf9ac822ecb3f2808f1db59db37989b6e9009b6fd26437b562d0b4d17
-
memory/1192-40-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/1192-54-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/1192-57-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/1192-56-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/1192-55-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/1192-47-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/1192-48-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/1192-49-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/1192-52-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/2860-18-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/2860-31-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/2860-15-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/2860-13-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/2860-14-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/2860-29-0x0000000000AC0000-0x0000000000C41000-memory.dmpFilesize
1.5MB
-
memory/4256-3-0x0000000000CF0000-0x0000000000CF1000-memory.dmpFilesize
4KB
-
memory/4256-1-0x0000000000400000-0x0000000000B97000-memory.dmpFilesize
7.6MB
-
memory/4256-8-0x0000000000400000-0x0000000000B97000-memory.dmpFilesize
7.6MB
-
memory/4256-10-0x0000000000400000-0x0000000000B97000-memory.dmpFilesize
7.6MB
-
memory/4256-11-0x0000000000400000-0x0000000000B97000-memory.dmpFilesize
7.6MB
-
memory/4256-0-0x0000000000400000-0x0000000000B97000-memory.dmpFilesize
7.6MB
-
memory/4256-12-0x0000000000400000-0x0000000000B97000-memory.dmpFilesize
7.6MB
-
memory/4256-6-0x0000000000401000-0x0000000000411000-memory.dmpFilesize
64KB
-
memory/4256-5-0x0000000000400000-0x0000000000B97000-memory.dmpFilesize
7.6MB
-
memory/4256-17-0x0000000000401000-0x0000000000411000-memory.dmpFilesize
64KB
-
memory/4256-2-0x0000000000400000-0x0000000000B97000-memory.dmpFilesize
7.6MB
-
memory/4256-16-0x0000000000400000-0x0000000000B97000-memory.dmpFilesize
7.6MB
-
memory/4256-7-0x0000000000400000-0x0000000000B97000-memory.dmpFilesize
7.6MB
-
memory/5024-32-0x0000000000400000-0x0000000000B97000-memory.dmpFilesize
7.6MB
-
memory/5024-33-0x0000000000400000-0x0000000000B97000-memory.dmpFilesize
7.6MB
-
memory/5024-42-0x0000000000400000-0x0000000000B97000-memory.dmpFilesize
7.6MB
-
memory/5024-38-0x0000000000400000-0x0000000000B97000-memory.dmpFilesize
7.6MB
-
memory/5024-34-0x0000000000400000-0x0000000000B97000-memory.dmpFilesize
7.6MB
-
memory/5024-35-0x0000000002660000-0x0000000002661000-memory.dmpFilesize
4KB
-
memory/5024-36-0x0000000000400000-0x0000000000B97000-memory.dmpFilesize
7.6MB