Analysis
-
max time kernel
155s -
max time network
156s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
15/04/2024, 23:22
Static task
static1
Behavioral task
behavioral1
Sample
90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe
Resource
win10v2004-20240412-en
Behavioral task
behavioral2
Sample
90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe
Resource
win11-20240412-en
General
-
Target
90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe
-
Size
860KB
-
MD5
e2a733f51b662778b62c47f9e6727c00
-
SHA1
8b358b86b59be7ec513807b620f3bd88ec72dfef
-
SHA256
90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84
-
SHA512
72d12b0039fcc5cc5d19b08b53fed47c97e10fdf64e13b99ecb872705185d54f0c5a7ae9a7b53562749cbdf7cf110870c56ad40277bd05b005012578b6e6d4c8
-
SSDEEP
12288:/RxxWkzr8xTt6mMNSRLFMILA8bqhD1qKyZ+8ssIqYHHyPpr9mvez6APKp+Y0INh6:/RIZFPHbqhD1qKyk8jYkDR3PYcFD
Malware Config
Extracted
djvu
http://sajdfue.com/test2/get.php
-
extension
.uazq
-
offline_id
Jx0i3k2ogR5cKxX1evmz0Ex7TUxOUlnbh2dvnIt1
-
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/df01994dd8d37c2c33469922f8e7155a20240402134014/fd95b0 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: 0860PsawqS
Signatures
-
Detected Djvu ransomware 17 IoCs
resource yara_rule behavioral2/memory/4892-2-0x0000000004CC0000-0x0000000004DDB000-memory.dmp family_djvu behavioral2/memory/4236-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4236-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4236-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4236-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4236-17-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4340-22-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4340-23-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4340-24-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4340-31-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4340-32-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4340-33-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4340-36-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4340-38-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4340-39-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4340-40-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4340-41-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
-
Modifies file permissions 1 TTPs 1 IoCs
pid Process 3956 icacls.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-825860316-2493133627-3905166409-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\98cf148f-3035-4ce7-9041-e25f5670bb4d\\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe\" --AutoStart" 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.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.
flow ioc 1 api.2ip.ua 5 api.2ip.ua 13 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4892 set thread context of 4236 4892 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe 83 PID 3564 set thread context of 4340 3564 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe 88 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4236 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe 4236 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe 4340 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe 4340 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe -
Suspicious use of WriteProcessMemory 26 IoCs
description pid Process procid_target PID 4892 wrote to memory of 4236 4892 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe 83 PID 4892 wrote to memory of 4236 4892 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe 83 PID 4892 wrote to memory of 4236 4892 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe 83 PID 4892 wrote to memory of 4236 4892 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe 83 PID 4892 wrote to memory of 4236 4892 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe 83 PID 4892 wrote to memory of 4236 4892 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe 83 PID 4892 wrote to memory of 4236 4892 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe 83 PID 4892 wrote to memory of 4236 4892 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe 83 PID 4892 wrote to memory of 4236 4892 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe 83 PID 4892 wrote to memory of 4236 4892 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe 83 PID 4236 wrote to memory of 3956 4236 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe 84 PID 4236 wrote to memory of 3956 4236 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe 84 PID 4236 wrote to memory of 3956 4236 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe 84 PID 4236 wrote to memory of 3564 4236 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe 85 PID 4236 wrote to memory of 3564 4236 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe 85 PID 4236 wrote to memory of 3564 4236 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe 85 PID 3564 wrote to memory of 4340 3564 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe 88 PID 3564 wrote to memory of 4340 3564 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe 88 PID 3564 wrote to memory of 4340 3564 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe 88 PID 3564 wrote to memory of 4340 3564 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe 88 PID 3564 wrote to memory of 4340 3564 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe 88 PID 3564 wrote to memory of 4340 3564 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe 88 PID 3564 wrote to memory of 4340 3564 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe 88 PID 3564 wrote to memory of 4340 3564 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe 88 PID 3564 wrote to memory of 4340 3564 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe 88 PID 3564 wrote to memory of 4340 3564 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe"C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4892 -
C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe"C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4236 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\98cf148f-3035-4ce7-9041-e25f5670bb4d" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:3956
-
-
C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe"C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3564 -
C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe"C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Suspicious behavior: EnumeratesProcesses
PID:4340
-
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize1KB
MD53c6a98dff2c8e5d41183fb934602bccf
SHA1389eea4f6c8b9a19dd6efd65b2c979feeb4262a7
SHA2568c5e90026091280487ae42d5c0f266528cacb6de18c7f3d693ecfdb547b06ac8
SHA512fde8e5de812641dc896e8d8182dcf4244670e431f3310aba576f0f330a9d8a4221eb7513005e9755512d0c645cbf164c4c5f8872689d2e52a58b3f39668de8fd
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize724B
MD58202a1cd02e7d69597995cabbe881a12
SHA18858d9d934b7aa9330ee73de6c476acf19929ff6
SHA25658f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5
SHA51297ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize410B
MD5e32863480615be830c1475a83ce63b49
SHA10bd099b0665c07b2e2f023da5f774ad25ffa1a94
SHA256c4213da8a9fd66222df0dedf2b063a1963c45560d55df6319aaf108c8510b612
SHA512f71a502f6eb9a3158d48566d28e5f1ca876648413555c2d09140784a5489f947ddc33575792141724c9cf7503092d357a09773f69b5550bc58127ee91da5c7ee
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize392B
MD531d3362d58f9edfde4d2337ae0547a1f
SHA170187b3031002fb374f770bac1be58c09c9134ed
SHA256d454d9408227d98d58a2ff01a559bce4f0e464d5fb13a5ac656749d69ea6082b
SHA512930bbd2bdc4998e3bff42aea18fef225f0604ae933efbe628db1c326a175b0dab5a22b820f227d9326d4b5b5f56feca4d3aed47a927ffa7551decc2bde098322
-
C:\Users\Admin\AppData\Local\98cf148f-3035-4ce7-9041-e25f5670bb4d\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe
Filesize860KB
MD5e2a733f51b662778b62c47f9e6727c00
SHA18b358b86b59be7ec513807b620f3bd88ec72dfef
SHA25690b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84
SHA51272d12b0039fcc5cc5d19b08b53fed47c97e10fdf64e13b99ecb872705185d54f0c5a7ae9a7b53562749cbdf7cf110870c56ad40277bd05b005012578b6e6d4c8