Analysis
-
max time kernel
147s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
22-05-2024 04:57
Static task
static1
Behavioral task
behavioral1
Sample
628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral2
Sample
628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe
Resource
win11-20240508-en
General
-
Target
628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe
-
Size
783KB
-
MD5
f4ac3bb65473350957e8ea894b4a2532
-
SHA1
315b733cac562d5dc8c6e04b5d26f45bd849f202
-
SHA256
628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e
-
SHA512
215d839238739b2242522666a5f3fdd1c7cb967ad2d3d44e00a72d6b16530aa7a0b007274b49613276d8136595bd6a718c9c69d086cd85098d616fbbe94dbdba
-
SSDEEP
12288:tgWAa4i7KI3tVXz6+8wZss/1c72XZ5jWv6D/c6qWK:uWSIPXR8qssWeg6r/K
Malware Config
Extracted
djvu
http://cajgtus.com/test2/get.php
-
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
Signatures
-
Detected Djvu ransomware 15 IoCs
Processes:
resource yara_rule behavioral2/memory/8-2-0x00000000041D0000-0x00000000042EB000-memory.dmp family_djvu behavioral2/memory/5012-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/5012-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/5012-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/5012-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/5012-19-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4340-22-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4340-27-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4340-28-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4340-29-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4340-32-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4340-34-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4340-35-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4340-36-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4340-37-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
-
Modifies file permissions 1 TTPs 1 IoCs
-
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3001105534-2705918504-2956618779-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\c32bdc0b-64b6-40a5-bb7d-a87c205fee09\\628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe\" --AutoStart" 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.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:
628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exedescription pid process target process PID 8 set thread context of 5012 8 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe PID 2308 set thread context of 4340 2308 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exepid process 5012 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe 5012 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe 4340 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe 4340 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exedescription pid process target process PID 8 wrote to memory of 5012 8 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe PID 8 wrote to memory of 5012 8 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe PID 8 wrote to memory of 5012 8 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe PID 8 wrote to memory of 5012 8 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe PID 8 wrote to memory of 5012 8 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe PID 8 wrote to memory of 5012 8 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe PID 8 wrote to memory of 5012 8 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe PID 8 wrote to memory of 5012 8 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe PID 8 wrote to memory of 5012 8 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe PID 8 wrote to memory of 5012 8 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe PID 5012 wrote to memory of 1948 5012 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe icacls.exe PID 5012 wrote to memory of 1948 5012 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe icacls.exe PID 5012 wrote to memory of 1948 5012 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe icacls.exe PID 5012 wrote to memory of 2308 5012 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe PID 5012 wrote to memory of 2308 5012 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe PID 5012 wrote to memory of 2308 5012 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe PID 2308 wrote to memory of 4340 2308 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe PID 2308 wrote to memory of 4340 2308 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe PID 2308 wrote to memory of 4340 2308 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe PID 2308 wrote to memory of 4340 2308 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe PID 2308 wrote to memory of 4340 2308 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe PID 2308 wrote to memory of 4340 2308 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe PID 2308 wrote to memory of 4340 2308 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe PID 2308 wrote to memory of 4340 2308 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe PID 2308 wrote to memory of 4340 2308 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe PID 2308 wrote to memory of 4340 2308 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe 628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe"C:\Users\Admin\AppData\Local\Temp\628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:8 -
C:\Users\Admin\AppData\Local\Temp\628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe"C:\Users\Admin\AppData\Local\Temp\628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5012 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\c32bdc0b-64b6-40a5-bb7d-a87c205fee09" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:1948 -
C:\Users\Admin\AppData\Local\Temp\628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe"C:\Users\Admin\AppData\Local\Temp\628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2308 -
C:\Users\Admin\AppData\Local\Temp\628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe"C:\Users\Admin\AppData\Local\Temp\628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.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
MD5cb35bd9d6c5a4fd50a9263018bbd9784
SHA1efec24f93d2af7bd01969c36870ebc928fa6c790
SHA256be648ee93df285417e494e28c01e3ab8f3d043845f4d3b397dfd137d187ed612
SHA512ac26182fb167458da4b465b118720470859e8028db8d3d71ddbe0c5be0e46b9178c5f7ccb8b1252c38754e27da1af546f8d2f6e32e1bfcbeac0d510aa831bf11
-
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
MD5ff05ee3c7f11658a89ac9d9bbee73347
SHA11c30e3a7d58e6667ea68b7b73861257f81c037a7
SHA256bafac9cdda50175096c079657ae60e2970c52e1efe1f8db146aa9326acd3a32d
SHA512697bab0b6c0f3df0c8839bf1650f7de0e2a9211e4f9fbe54163da169720942ccff4c73e7d87401f67aa6cac49dfba197e771a7e2e068b083e1e57f440871a4a0
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize392B
MD54eb4ed411e2f6ec6897278b921dc7780
SHA1d64d8c45bf41fd6420f02c2de0c0ce7e3ca9c0ec
SHA256b98fffe64b36979eb206abc40775127babb0bb511ed214e8932dd10e42ccfa53
SHA51202009f4c5bc022fdafe3575d0bc6deb035744e74f4d848b130af64582b6db3588053c17b2d4f3adf33d4aadf09bc72293284e84209a5bf98c8a523f7c31cc8e4
-
C:\Users\Admin\AppData\Local\c32bdc0b-64b6-40a5-bb7d-a87c205fee09\628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e.exe
Filesize783KB
MD5f4ac3bb65473350957e8ea894b4a2532
SHA1315b733cac562d5dc8c6e04b5d26f45bd849f202
SHA256628bb09d4a1fb84f30fedf4b6bfdf039fc3f7d6d1dce80d0ea4bf0e83747050e
SHA512215d839238739b2242522666a5f3fdd1c7cb967ad2d3d44e00a72d6b16530aa7a0b007274b49613276d8136595bd6a718c9c69d086cd85098d616fbbe94dbdba