Analysis
-
max time kernel
146s -
max time network
152s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
22-05-2024 00:03
Static task
static1
Behavioral task
behavioral1
Sample
3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe
Resource
win10v2004-20240426-en
Behavioral task
behavioral2
Sample
3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe
Resource
win11-20240426-en
General
-
Target
3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe
-
Size
805KB
-
MD5
c809827be1c79e65c9dd86e78d7c53f1
-
SHA1
ba0403ea800d5b0e68888543f6ca0921f753ddd1
-
SHA256
3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8
-
SHA512
ad47c68490b7c34b0ae8001d59071cbf1888de7bb72be29922dc0c3e1eea1624bc1a4dfd6481cc06281363c54d170bbfa37a43b1e720721b18b5813d23ad45c5
-
SSDEEP
12288:ofdavAM3xfGM4YJYFdxFQ09Lbl7Pq3/RSVAlGO+MUzE:+dazfGM4kYdFfLbl7PqUalZoI
Malware Config
Extracted
djvu
http://cajgtus.com/test1/get.php
-
extension
.vepi
-
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: 0871PsawqS
Signatures
-
Detected Djvu ransomware 15 IoCs
Processes:
resource yara_rule behavioral2/memory/4132-2-0x00000000041C0000-0x00000000042DB000-memory.dmp family_djvu behavioral2/memory/1696-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1696-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1696-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1696-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1696-19-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3292-22-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3292-28-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3292-27-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3292-29-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3292-34-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3292-35-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3292-32-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3292-36-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3292-37-0x0000000000400000-0x0000000000537000-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:
3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2551177587-3778486488-1329702901-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\68c30bef-ea8c-43e6-9d87-e39d860b5d94\\3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe\" --AutoStart" 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.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 7 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
Processes:
3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exedescription pid process target process PID 4132 set thread context of 1696 4132 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe PID 1512 set thread context of 3292 1512 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exepid process 1696 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe 1696 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe 3292 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe 3292 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exedescription pid process target process PID 4132 wrote to memory of 1696 4132 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe PID 4132 wrote to memory of 1696 4132 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe PID 4132 wrote to memory of 1696 4132 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe PID 4132 wrote to memory of 1696 4132 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe PID 4132 wrote to memory of 1696 4132 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe PID 4132 wrote to memory of 1696 4132 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe PID 4132 wrote to memory of 1696 4132 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe PID 4132 wrote to memory of 1696 4132 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe PID 4132 wrote to memory of 1696 4132 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe PID 4132 wrote to memory of 1696 4132 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe PID 1696 wrote to memory of 792 1696 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe icacls.exe PID 1696 wrote to memory of 792 1696 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe icacls.exe PID 1696 wrote to memory of 792 1696 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe icacls.exe PID 1696 wrote to memory of 1512 1696 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe PID 1696 wrote to memory of 1512 1696 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe PID 1696 wrote to memory of 1512 1696 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe PID 1512 wrote to memory of 3292 1512 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe PID 1512 wrote to memory of 3292 1512 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe PID 1512 wrote to memory of 3292 1512 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe PID 1512 wrote to memory of 3292 1512 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe PID 1512 wrote to memory of 3292 1512 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe PID 1512 wrote to memory of 3292 1512 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe PID 1512 wrote to memory of 3292 1512 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe PID 1512 wrote to memory of 3292 1512 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe PID 1512 wrote to memory of 3292 1512 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe PID 1512 wrote to memory of 3292 1512 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe 3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe"C:\Users\Admin\AppData\Local\Temp\3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4132 -
C:\Users\Admin\AppData\Local\Temp\3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe"C:\Users\Admin\AppData\Local\Temp\3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1696 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\68c30bef-ea8c-43e6-9d87-e39d860b5d94" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:792 -
C:\Users\Admin\AppData\Local\Temp\3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe"C:\Users\Admin\AppData\Local\Temp\3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1512 -
C:\Users\Admin\AppData\Local\Temp\3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe"C:\Users\Admin\AppData\Local\Temp\3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Suspicious behavior: EnumeratesProcesses
PID:3292
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize1KB
MD5a1d955617a4d146e70544d0d9a0390ca
SHA15ffdc4453b23e24a7cb0e634b26864c169f5257b
SHA2568dbff2c0018158256912d87dd495a68c351303a319f50f204a930317e867aeb3
SHA5120bffbc27638b12cc04f335de8c4f3c74df01ae55b56f389f8d046d797b4c62d31bbff057ea75ce32f67cdd3b878fd0aad3eb62e983f814296e1b94de3c6ba810
-
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
MD5fc645c046b61028ac135d6484834cb8f
SHA10f53da2cd7bd5b6b695f47ebefc6b1c698fe8019
SHA2560adc0b994b1509aeec734e92f21f5c329aaec02fd7d56d403269df9a1caea6c4
SHA512567f0a47bdc02fac646e1aef827c20c9346581337838dd3585f383aa764213fc627261d26b921bc24ab48d242abeb29235eba43b49cfaa2ed969d2b15237a13c
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize392B
MD57a00c45f57b41d4648d4a405aeca7a8b
SHA1b888be9f54e7b25cae3c695ede5c9d7b13dea882
SHA2565251445e4ea5898e0729257f732a7739523d59abd1316f497162c52ad5d8ddb2
SHA5120f4e384b1df95ac59a53ba81bdb6bbc46114c2f4d3a89ecab0d16cf9d9888eb05fe15f53d5eb7b0e01c69b6ff21b7b4727537601020c713c4bfe0e61da63cd32
-
C:\Users\Admin\AppData\Local\68c30bef-ea8c-43e6-9d87-e39d860b5d94\3d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8.exe
Filesize805KB
MD5c809827be1c79e65c9dd86e78d7c53f1
SHA1ba0403ea800d5b0e68888543f6ca0921f753ddd1
SHA2563d671617eb9309b57270ca90341af42a2512fda22a22b2b47d4b6060110aecd8
SHA512ad47c68490b7c34b0ae8001d59071cbf1888de7bb72be29922dc0c3e1eea1624bc1a4dfd6481cc06281363c54d170bbfa37a43b1e720721b18b5813d23ad45c5