Analysis
-
max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
24-05-2024 18:23
Static task
static1
Behavioral task
behavioral1
Sample
89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral2
Sample
89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe
Resource
win11-20240508-en
General
-
Target
89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe
-
Size
715KB
-
MD5
3167f65968007ded44a47a93dcaff631
-
SHA1
d18462c38b5620c425cd9cc208d23eb1486efe2b
-
SHA256
89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5
-
SHA512
7175157dbc725621b4489d656f9149c00d52ffd3dec0f1b94129eec850d91b8bff2399fc32542748cb7daf0bc13047166f710179e71f5898189d977d471fc19e
-
SSDEEP
12288:dFBiMY4Adil+YTRwQ9MX86Djb5QMHYqlr49kQqDRqq+HHzqdHnI6ltH5t:dFBaddiMYTCZswb5QM4kk9ytn+H8HLp
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 behavioral1/memory/1608-2-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1520-4-0x0000000004A00000-0x0000000004B1B000-memory.dmp family_djvu behavioral1/memory/1608-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1608-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1608-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1608-17-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4084-20-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4084-25-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4084-26-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4084-27-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4084-30-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4084-33-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4084-32-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4084-34-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4084-35-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
-
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe -
Modifies file permissions 1 TTPs 1 IoCs
-
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\297f1d4e-bf4b-420a-8531-64f88d6aa087\\89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe\" --AutoStart" 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.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 4 api.2ip.ua 5 api.2ip.ua 17 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
Processes:
89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exedescription pid process target process PID 1520 set thread context of 1608 1520 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe PID 1824 set thread context of 4084 1824 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exepid process 1608 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe 1608 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe 4084 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe 4084 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exedescription pid process target process PID 1520 wrote to memory of 1608 1520 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe PID 1520 wrote to memory of 1608 1520 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe PID 1520 wrote to memory of 1608 1520 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe PID 1520 wrote to memory of 1608 1520 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe PID 1520 wrote to memory of 1608 1520 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe PID 1520 wrote to memory of 1608 1520 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe PID 1520 wrote to memory of 1608 1520 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe PID 1520 wrote to memory of 1608 1520 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe PID 1520 wrote to memory of 1608 1520 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe PID 1520 wrote to memory of 1608 1520 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe PID 1608 wrote to memory of 3476 1608 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe icacls.exe PID 1608 wrote to memory of 3476 1608 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe icacls.exe PID 1608 wrote to memory of 3476 1608 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe icacls.exe PID 1608 wrote to memory of 1824 1608 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe PID 1608 wrote to memory of 1824 1608 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe PID 1608 wrote to memory of 1824 1608 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe PID 1824 wrote to memory of 4084 1824 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe PID 1824 wrote to memory of 4084 1824 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe PID 1824 wrote to memory of 4084 1824 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe PID 1824 wrote to memory of 4084 1824 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe PID 1824 wrote to memory of 4084 1824 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe PID 1824 wrote to memory of 4084 1824 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe PID 1824 wrote to memory of 4084 1824 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe PID 1824 wrote to memory of 4084 1824 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe PID 1824 wrote to memory of 4084 1824 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe PID 1824 wrote to memory of 4084 1824 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe 89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe"C:\Users\Admin\AppData\Local\Temp\89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe"C:\Users\Admin\AppData\Local\Temp\89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\297f1d4e-bf4b-420a-8531-64f88d6aa087" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
-
C:\Users\Admin\AppData\Local\Temp\89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe"C:\Users\Admin\AppData\Local\Temp\89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe"C:\Users\Admin\AppData\Local\Temp\89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EAFilesize
1KB
MD53bfb237d95f9c34465d50360f39b3ceb
SHA12cdee845ea6ebbd3cd0466b0eae4752842de86cc
SHA2562ceaddb29268e6112e7aa95722894fb061238ad4e2b247ce23595609daa5eb8d
SHA512da55bf0fd898acda5dfd2366a96d439807e502c763dca35c3a119c3ab45f6e3d821a1e3fd29858e333606ef0e822f3373b9cb8c41d95736131bb001ad5b6a16f
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464Filesize
724B
MD58202a1cd02e7d69597995cabbe881a12
SHA18858d9d934b7aa9330ee73de6c476acf19929ff6
SHA25658f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5
SHA51297ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EAFilesize
410B
MD5f9071eb3e69c8cde0ae51301af861d5d
SHA1c7793b69d14d644ece8e8d8d5d1a976db96fd0f8
SHA256b514b7a9e480a3c442a2186994cb91e84ca5ceb5e2c943804dc1f81631ce082d
SHA51294d795d3fcd6cb721605b85c482e9a40846f648286c34fb6ecee1f927f20ec7b7c66bb2be3d195a38276109ef577e459d2e4174a105b480d708cb9b2ea53bf24
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464Filesize
392B
MD5d21e602009632926593d6c8712d66ae8
SHA1d7c2ce1ca62b0c765316cfea83514c3d446ef407
SHA25604f119a36a76b024bcee9a47cd9be7dc0af725a29fadb6f6ec5e85ec315612f6
SHA512e1500cea0301d156724fc676ae7ce94e8f7ddf3221f1d542350bb28b34ba8cb7b67f683aea5fe109e8e00f726f7034c9d430961754df97ce0edc482109c052d9
-
C:\Users\Admin\AppData\Local\297f1d4e-bf4b-420a-8531-64f88d6aa087\89afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5.exeFilesize
715KB
MD53167f65968007ded44a47a93dcaff631
SHA1d18462c38b5620c425cd9cc208d23eb1486efe2b
SHA25689afb54fc4d9a27c28ba687539e77c9950ab3b485bd25db536880d6830ec15d5
SHA5127175157dbc725621b4489d656f9149c00d52ffd3dec0f1b94129eec850d91b8bff2399fc32542748cb7daf0bc13047166f710179e71f5898189d977d471fc19e
-
memory/1520-4-0x0000000004A00000-0x0000000004B1B000-memory.dmpFilesize
1.1MB
-
memory/1520-1-0x0000000004960000-0x00000000049FE000-memory.dmpFilesize
632KB
-
memory/1608-6-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/1608-2-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/1608-17-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/1608-5-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/1608-3-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/4084-26-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/4084-25-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/4084-20-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/4084-27-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/4084-30-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/4084-33-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/4084-32-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/4084-34-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/4084-35-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB