Analysis
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max time kernel
141s -
max time network
122s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
21-05-2024 19:10
Static task
static1
Behavioral task
behavioral1
Sample
366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral2
Sample
366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe
Resource
win11-20240508-en
General
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Target
366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe
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Size
709KB
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MD5
75b4ec737dc7c826feeed8d91b096708
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SHA1
a2bbfab0e93a5b9e38a88d82392df3f79515b1ac
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SHA256
366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95
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SHA512
6b3a99f7d65f7403afe2df6b89f3f046c1bbb4bdf789de0efa3a7cbbc82d905c823392396447dc0fafae766f020d913a3b43f4af07f07d6c0430bc0e6dabf088
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SSDEEP
12288:c/PFhwPoJSHVHOtQWCpwEX7nP7ifUXNIOmKAnkZ55Hxk1w2Ux2h9yZw:JPoJwVLWCpdXzDKXKAkZ5xxwwR0M
Malware Config
Extracted
djvu
http://cajgtus.com/test1/get.php
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extension
.vepi
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offline_id
EGfa5svnSGFJka7LZBQoqff0QtO1IpTauoDvGvt1
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payload_url
http://sdfjhuz.com/dl/build2.exe
http://cajgtus.com/files/1/build3.exe
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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: 0871PsawqS
Signatures
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Detected Djvu ransomware 15 IoCs
Processes:
resource yara_rule behavioral2/memory/3004-2-0x0000000004060000-0x000000000417B000-memory.dmp family_djvu behavioral2/memory/1804-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1804-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1804-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1804-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1804-19-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/740-22-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/740-27-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/740-28-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/740-29-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/740-32-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/740-35-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/740-34-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/740-36-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/740-37-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Modifies file permissions 1 TTPs 1 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\71d2463d-0767-48e6-955b-9211af1730eb\\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe\" --AutoStart" 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.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 2 api.2ip.ua 6 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
Processes:
366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exedescription pid process target process PID 3004 set thread context of 1804 3004 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe PID 1540 set thread context of 740 1540 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exepid process 1804 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe 1804 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe 740 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe 740 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exedescription pid process target process PID 3004 wrote to memory of 1804 3004 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe PID 3004 wrote to memory of 1804 3004 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe PID 3004 wrote to memory of 1804 3004 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe PID 3004 wrote to memory of 1804 3004 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe PID 3004 wrote to memory of 1804 3004 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe PID 3004 wrote to memory of 1804 3004 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe PID 3004 wrote to memory of 1804 3004 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe PID 3004 wrote to memory of 1804 3004 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe PID 3004 wrote to memory of 1804 3004 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe PID 3004 wrote to memory of 1804 3004 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe PID 1804 wrote to memory of 3344 1804 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe icacls.exe PID 1804 wrote to memory of 3344 1804 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe icacls.exe PID 1804 wrote to memory of 3344 1804 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe icacls.exe PID 1804 wrote to memory of 1540 1804 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe PID 1804 wrote to memory of 1540 1804 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe PID 1804 wrote to memory of 1540 1804 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe PID 1540 wrote to memory of 740 1540 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe PID 1540 wrote to memory of 740 1540 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe PID 1540 wrote to memory of 740 1540 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe PID 1540 wrote to memory of 740 1540 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe PID 1540 wrote to memory of 740 1540 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe PID 1540 wrote to memory of 740 1540 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe PID 1540 wrote to memory of 740 1540 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe PID 1540 wrote to memory of 740 1540 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe PID 1540 wrote to memory of 740 1540 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe PID 1540 wrote to memory of 740 1540 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe"C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3004 -
C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe"C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1804 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\71d2463d-0767-48e6-955b-9211af1730eb" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:3344 -
C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe"C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1540 -
C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe"C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Suspicious behavior: EnumeratesProcesses
PID:740
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize1KB
MD5a1d955617a4d146e70544d0d9a0390ca
SHA15ffdc4453b23e24a7cb0e634b26864c169f5257b
SHA2568dbff2c0018158256912d87dd495a68c351303a319f50f204a930317e867aeb3
SHA5120bffbc27638b12cc04f335de8c4f3c74df01ae55b56f389f8d046d797b4c62d31bbff057ea75ce32f67cdd3b878fd0aad3eb62e983f814296e1b94de3c6ba810
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize724B
MD58202a1cd02e7d69597995cabbe881a12
SHA18858d9d934b7aa9330ee73de6c476acf19929ff6
SHA25658f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5
SHA51297ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize410B
MD5efa8e178fc0e196f12596d7ad19f66f0
SHA1d5a5ebffff54944b00aaace80a95c948be8547bc
SHA2565309f0997185cc4e3876112c8eef51f442711ae9b1f325073d15ff58c6f91610
SHA512f89a2bebd5b5e2e63149134cbbe442915051349282e46f4276c5578dfab279d85420b17ca804424237e40f32e8960e686c555a3bd2b66e92b5df621a66e029c9
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize392B
MD5b90dd61449e493287d6b5865d6e2c627
SHA13f6ac3afc60d7e05574c73a407ecf1a0dcb3312d
SHA25619a7e5346a78216b8564168f3e7f8f788844b0bf73f4d5efad247d5c31f61b0d
SHA512596ee41edc5fcc2a6ab219b59a00f6cfbf6b4e0250cb2d39d8f6f56aacd858d70ed7c8a4f2566066e5cbf454bb9f50ef3b1eb7bf72e939ba7ac40747f97cce59
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C:\Users\Admin\AppData\Local\71d2463d-0767-48e6-955b-9211af1730eb\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe
Filesize709KB
MD575b4ec737dc7c826feeed8d91b096708
SHA1a2bbfab0e93a5b9e38a88d82392df3f79515b1ac
SHA256366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95
SHA5126b3a99f7d65f7403afe2df6b89f3f046c1bbb4bdf789de0efa3a7cbbc82d905c823392396447dc0fafae766f020d913a3b43f4af07f07d6c0430bc0e6dabf088