Analysis
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max time kernel
146s -
max time network
153s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-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
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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
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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: 0872PsawqS
Signatures
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Detected Djvu ransomware 15 IoCs
Processes:
resource yara_rule behavioral2/memory/8-2-0x0000000003DF0000-0x0000000003F0B000-memory.dmp family_djvu behavioral2/memory/5012-3-0x0000000000400000-0x0000000000537000-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/5012-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/5012-19-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2380-22-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2380-27-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2380-28-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2380-29-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2380-32-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2380-35-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2380-34-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2380-36-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2380-37-0x0000000000400000-0x0000000000537000-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:
e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.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\\83f62d9e-5c4a-4ffa-964f-9ce7d83bd173\\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 1 api.2ip.ua 2 api.2ip.ua 6 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
Processes:
e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exee764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exedescription pid process target process PID 8 set thread context of 5012 8 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 1156 set thread context of 2380 1156 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 5012 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe 5012 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe 2380 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe 2380 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exee764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exee764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exedescription pid process target process PID 8 wrote to memory of 5012 8 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 8 wrote to memory of 5012 8 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 8 wrote to memory of 5012 8 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 8 wrote to memory of 5012 8 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 8 wrote to memory of 5012 8 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 8 wrote to memory of 5012 8 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 8 wrote to memory of 5012 8 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 8 wrote to memory of 5012 8 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 8 wrote to memory of 5012 8 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 8 wrote to memory of 5012 8 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 5012 wrote to memory of 2428 5012 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe icacls.exe PID 5012 wrote to memory of 2428 5012 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe icacls.exe PID 5012 wrote to memory of 2428 5012 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe icacls.exe PID 5012 wrote to memory of 1156 5012 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 5012 wrote to memory of 1156 5012 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 5012 wrote to memory of 1156 5012 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 1156 wrote to memory of 2380 1156 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 1156 wrote to memory of 2380 1156 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 1156 wrote to memory of 2380 1156 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 1156 wrote to memory of 2380 1156 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 1156 wrote to memory of 2380 1156 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 1156 wrote to memory of 2380 1156 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 1156 wrote to memory of 2380 1156 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 1156 wrote to memory of 2380 1156 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 1156 wrote to memory of 2380 1156 e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe PID 1156 wrote to memory of 2380 1156 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⤵
- 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\83f62d9e-5c4a-4ffa-964f-9ce7d83bd173" /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
MD59d0248f230383c1a4f5b11624762341c
SHA1d47bc7c55652cc775be7482efb2c68384f00d16b
SHA256d539d79d22251640c7879f317f133731b6fb2ecb10f1d90022fa3e50c35c2d7d
SHA512cdcc15772adf536ab6c308a6421ed54e4ed332e2932d49b185e60dc56249c0dd8d6a31f5ea4626897410aaea09342ab8e472d8471450e68fbadd2f5fb7b29a88
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464Filesize
392B
MD5a37c2d78d225010f49bc0c7453b1a0b1
SHA10eb51f9c8498e1c74ee496bed1b45fce729ebc44
SHA25645e2bd53565da5d9387f761c7637390cd78843e3ff3c6c3c666548da9eba33d5
SHA512c67e52a3353a4f879b5c228d8e9be425d3d2cce282d800c06725edc6b8aad5b8449c47cfcbf663d1fe14a5b743ff6d429ddc2eeb1e975bb0144b69d0f651a08d
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C:\Users\Admin\AppData\Local\83f62d9e-5c4a-4ffa-964f-9ce7d83bd173\e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exeFilesize
771KB
MD55d587e4f2486d642e49cafe767ef5d75
SHA1d32d1eefb81dc327340402ac20117901ce21d57d
SHA256e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67
SHA5125d9136d8724823025fa97390d48fb48e5e79bba16f576b5d83acd7ac9d14785291aa4651deb47cdf49d1d251d33e71c487011e11e46598dec198012561e8a1c5
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memory/8-2-0x0000000003DF0000-0x0000000003F0B000-memory.dmpFilesize
1.1MB
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memory/8-1-0x0000000002350000-0x00000000023E6000-memory.dmpFilesize
600KB
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memory/2380-29-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/2380-35-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/2380-37-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/2380-36-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/2380-34-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/2380-22-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/2380-27-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/2380-28-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/2380-32-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/5012-3-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/5012-4-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/5012-5-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/5012-6-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/5012-19-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB