Analysis
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max time kernel
143s -
max time network
125s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
23-05-2024 19:44
Static task
static1
Behavioral task
behavioral1
Sample
e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral2
Sample
e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
Resource
win11-20240508-en
General
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Target
e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
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Size
771KB
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MD5
5d587e4f2486d642e49cafe767ef5d75
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SHA1
d32d1eefb81dc327340402ac20117901ce21d57d
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SHA256
e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67
-
SHA512
5d9136d8724823025fa97390d48fb48e5e79bba16f576b5d83acd7ac9d14785291aa4651deb47cdf49d1d251d33e71c487011e11e46598dec198012561e8a1c5
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SSDEEP
12288:Jdi/2Zd/RXNJ7PwmfhhiF3Wi7PW/BqZyW5jRoSDXKSuqBsme60g:JdiOZd/1jNHiFWwW/8Z95jpXlXBsF5g
Malware Config
Extracted
djvu
http://cajgtus.com/test2/get.php
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extension
.vehu
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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
-
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
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Detected Djvu ransomware 15 IoCs
Processes:
resource yara_rule behavioral1/memory/2872-4-0x0000000003CE0000-0x0000000003DFB000-memory.dmp family_djvu behavioral1/memory/2256-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2256-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2256-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2256-2-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2256-19-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3764-22-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3764-28-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3764-29-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3764-30-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3764-33-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3764-35-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3764-36-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3764-38-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3764-39-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe -
Modifies file permissions 1 TTPs 1 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\39a8e2b0-bd8c-41a9-9670-7c75a4893eb2\\e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe\" --AutoStart" e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.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 2 api.2ip.ua 5 api.2ip.ua 14 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
Processes:
e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exee764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exedescription pid process target process PID 2872 set thread context of 2256 2872 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 1244 set thread context of 3764 1244 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.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:
e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exee764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exepid process 2256 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe 2256 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe 3764 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe 3764 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exee764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exee764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exedescription pid process target process PID 2872 wrote to memory of 2256 2872 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 2872 wrote to memory of 2256 2872 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 2872 wrote to memory of 2256 2872 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 2872 wrote to memory of 2256 2872 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 2872 wrote to memory of 2256 2872 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 2872 wrote to memory of 2256 2872 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 2872 wrote to memory of 2256 2872 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 2872 wrote to memory of 2256 2872 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 2872 wrote to memory of 2256 2872 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 2872 wrote to memory of 2256 2872 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 2256 wrote to memory of 3688 2256 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe icacls.exe PID 2256 wrote to memory of 3688 2256 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe icacls.exe PID 2256 wrote to memory of 3688 2256 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe icacls.exe PID 2256 wrote to memory of 1244 2256 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 2256 wrote to memory of 1244 2256 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 2256 wrote to memory of 1244 2256 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 1244 wrote to memory of 3764 1244 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 1244 wrote to memory of 3764 1244 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 1244 wrote to memory of 3764 1244 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 1244 wrote to memory of 3764 1244 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 1244 wrote to memory of 3764 1244 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 1244 wrote to memory of 3764 1244 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 1244 wrote to memory of 3764 1244 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 1244 wrote to memory of 3764 1244 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 1244 wrote to memory of 3764 1244 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 1244 wrote to memory of 3764 1244 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe"C:\Users\Admin\AppData\Local\Temp\e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe"C:\Users\Admin\AppData\Local\Temp\e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\39a8e2b0-bd8c-41a9-9670-7c75a4893eb2" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
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C:\Users\Admin\AppData\Local\Temp\e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe"C:\Users\Admin\AppData\Local\Temp\e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe"C:\Users\Admin\AppData\Local\Temp\e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EAFilesize
1KB
MD59e130b50184e39e32205c9dd3befee15
SHA1150b8bfb3208d3a854996e02c1470d81530335b5
SHA2567b5bd8bc8ac2cd655c212c4790e5d9a259046730a9f0bb51616b036da55d2c50
SHA5123cf76690e692c874792fa99d6358ebdd3596bab33bede653067375fc7de617eb7f150f52e640d34b2d51dcbe39c5bb88381bdc0279054ab65d5f1492d89f648f
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464Filesize
724B
MD58202a1cd02e7d69597995cabbe881a12
SHA18858d9d934b7aa9330ee73de6c476acf19929ff6
SHA25658f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5
SHA51297ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EAFilesize
410B
MD5519a9b29adcc4888ca7e97f40602116b
SHA1c1a15fd16f80763da70a273487c769b07a57b36f
SHA256b4ccd196363501ad100e9f092a5556b09e54acee1783c0fd0e87bb1b534a3a7b
SHA512da3609ce24a3840acbe4120a71749d68e1da3ade561fbb0a3c40242efe435e9534d9b66b64b5d1fde5170bb78274f0436f4a2cfb9e3cca2620de4bb4807822e9
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464Filesize
392B
MD5d8a9ae212cb1f297a72821bdc95038f9
SHA1712290a6dc94d8d8e38c1cd8aee3e5ff5131c8e1
SHA25607805b91952ff8d3e7b2c175cf6c6ad39d253ee09e447ecadab22a2809a1d3fa
SHA512e5596e00bc90d3fd676666e982d4e5c005ee1691327725083ecd56203227564876f967b619ab00b1f23795f6f1159d4efd6b1c7fa7e8138bad2f72b5e422a2aa
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C:\Users\Admin\AppData\Local\39a8e2b0-bd8c-41a9-9670-7c75a4893eb2\e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exeFilesize
771KB
MD55d587e4f2486d642e49cafe767ef5d75
SHA1d32d1eefb81dc327340402ac20117901ce21d57d
SHA256e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67
SHA5125d9136d8724823025fa97390d48fb48e5e79bba16f576b5d83acd7ac9d14785291aa4651deb47cdf49d1d251d33e71c487011e11e46598dec198012561e8a1c5
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memory/1244-23-0x0000000000400000-0x000000000200C000-memory.dmpFilesize
28.0MB
-
memory/1244-37-0x0000000000400000-0x000000000200C000-memory.dmpFilesize
28.0MB
-
memory/2256-2-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/2256-19-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/2256-6-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/2256-5-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/2256-3-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/2872-4-0x0000000003CE0000-0x0000000003DFB000-memory.dmpFilesize
1.1MB
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memory/2872-1-0x0000000002170000-0x0000000002210000-memory.dmpFilesize
640KB
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memory/3764-28-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/3764-29-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/3764-30-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/3764-33-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/3764-35-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/3764-36-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/3764-22-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/3764-38-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/3764-39-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB