Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
25-05-2024 17:35
Static task
static1
Behavioral task
behavioral1
Sample
99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral2
Sample
99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe
Resource
win11-20240426-en
General
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Target
99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe
-
Size
731KB
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MD5
87cc3b94f58489d3f71df2487eb54f8b
-
SHA1
5fa09052fef22288b5546bae205c53384994601f
-
SHA256
99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2
-
SHA512
2db91d6f99d759f2dc504c1915a7e38b6a47b859a951ed8667f23ece402bcd188e79e1ce28bc42e14b1f7945fd1ebcbac697ae79640bf9307f8209e8c97cb571
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SSDEEP
12288:D7XUPQ0Ay4YTZ6FzNDaV5LogDSbQSB0jpnyPQPdEo3yXP14czJp9H0vqHIBBg2r:D7L0Ay0RNaGgDmb0gcdE1X94c0v3v
Malware Config
Extracted
djvu
http://cajgtus.com/test1/get.php
-
extension
.vepi
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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
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Detected Djvu ransomware 15 IoCs
Processes:
resource yara_rule behavioral1/memory/4564-2-0x0000000004A50000-0x0000000004B6B000-memory.dmp family_djvu behavioral1/memory/4644-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4644-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4644-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4644-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4644-19-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4508-22-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4508-27-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4508-28-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4508-29-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4508-32-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4508-34-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4508-35-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4508-36-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4508-37-0x0000000000400000-0x0000000000537000-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:
99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe -
Modifies file permissions 1 TTPs 1 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\7a5c8176-9dbb-46d2-b1bc-830459c2c1c8\\99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe\" --AutoStart" 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.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 3 api.2ip.ua 4 api.2ip.ua 13 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
Processes:
99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exedescription pid process target process PID 4564 set thread context of 4644 4564 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe PID 4880 set thread context of 4508 4880 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.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:
99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exepid process 4644 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe 4644 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe 4508 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe 4508 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exedescription pid process target process PID 4564 wrote to memory of 4644 4564 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe PID 4564 wrote to memory of 4644 4564 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe PID 4564 wrote to memory of 4644 4564 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe PID 4564 wrote to memory of 4644 4564 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe PID 4564 wrote to memory of 4644 4564 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe PID 4564 wrote to memory of 4644 4564 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe PID 4564 wrote to memory of 4644 4564 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe PID 4564 wrote to memory of 4644 4564 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe PID 4564 wrote to memory of 4644 4564 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe PID 4564 wrote to memory of 4644 4564 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe PID 4644 wrote to memory of 1412 4644 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe icacls.exe PID 4644 wrote to memory of 1412 4644 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe icacls.exe PID 4644 wrote to memory of 1412 4644 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe icacls.exe PID 4644 wrote to memory of 4880 4644 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe PID 4644 wrote to memory of 4880 4644 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe PID 4644 wrote to memory of 4880 4644 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe PID 4880 wrote to memory of 4508 4880 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe PID 4880 wrote to memory of 4508 4880 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe PID 4880 wrote to memory of 4508 4880 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe PID 4880 wrote to memory of 4508 4880 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe PID 4880 wrote to memory of 4508 4880 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe PID 4880 wrote to memory of 4508 4880 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe PID 4880 wrote to memory of 4508 4880 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe PID 4880 wrote to memory of 4508 4880 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe PID 4880 wrote to memory of 4508 4880 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe PID 4880 wrote to memory of 4508 4880 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe 99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe"C:\Users\Admin\AppData\Local\Temp\99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe"C:\Users\Admin\AppData\Local\Temp\99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.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\7a5c8176-9dbb-46d2-b1bc-830459c2c1c8" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
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C:\Users\Admin\AppData\Local\Temp\99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe"C:\Users\Admin\AppData\Local\Temp\99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exe"C:\Users\Admin\AppData\Local\Temp\99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.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
MD58df6dedd4dd10eb8211463f82b129e29
SHA1ffc6e51cf829b481d789d8e3e61f6c7096fbde3e
SHA256a8400cc21263f2c44ccb301a3a1ef66a1ff009fd4d301362fd778e7b23a386d8
SHA51225fd6d8684ff8db3d40a8fe33267fd01d6456a84f81c7e579f7508c36558cf731a0ec8a2999a539aa5c1985dc45f7bd20d2a14a343b2326030941858f24c57f4
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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
MD57713f3101ecc30919c8a5e0904a247c6
SHA1537bb0e32972b4866a5f8eaa65a96b1538535241
SHA25609103c0218bde8c57b123fbe0f6464fc128e07eab392006ac80a135c03a2f9de
SHA5127c159144daf6f659aaf847c9610e136db5b602f98ee90a61aa784f6a1bb0756dc3ec3708c51018aa28205336f91d4584b95cf18bc2c012a910e2abd015547462
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464Filesize
392B
MD5348423266a4f42340154440035128ee2
SHA1d5949b50ebf3183199f1a2f35209670675d83960
SHA256ac1f8678d815db01c2d031a0111e50734e99b771af266f4822f6f6738bfd27b7
SHA512f75c5114e1433fed00d0c50bb47a86fbd93592a01e9b6082f89f9910e4dfa48bfb201a0b59d9cb27af63fb2e7ab5270f0b2e301cd9694fa1b35add3dbc66f20a
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C:\Users\Admin\AppData\Local\7a5c8176-9dbb-46d2-b1bc-830459c2c1c8\99960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2.exeFilesize
731KB
MD587cc3b94f58489d3f71df2487eb54f8b
SHA15fa09052fef22288b5546bae205c53384994601f
SHA25699960ae1b9c97e6298161223d1aebd26968c41312ee629d109b967ce6bfffec2
SHA5122db91d6f99d759f2dc504c1915a7e38b6a47b859a951ed8667f23ece402bcd188e79e1ce28bc42e14b1f7945fd1ebcbac697ae79640bf9307f8209e8c97cb571
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memory/4508-29-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/4508-28-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/4508-37-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/4508-22-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/4508-36-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/4508-35-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/4508-34-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/4508-32-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/4508-27-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/4564-1-0x00000000049B0000-0x0000000004A46000-memory.dmpFilesize
600KB
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memory/4564-2-0x0000000004A50000-0x0000000004B6B000-memory.dmpFilesize
1.1MB
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memory/4644-6-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/4644-3-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/4644-4-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/4644-5-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/4644-19-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB