Analysis
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max time kernel
150s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
22-05-2024 15:44
Static task
static1
Behavioral task
behavioral1
Sample
71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe
Resource
win10v2004-20240426-en
Behavioral task
behavioral2
Sample
71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe
Resource
win11-20240508-en
General
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Target
71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe
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Size
710KB
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MD5
2fa6ec658c61947f197c939f130bac1d
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SHA1
363abe0b0187e0463b32178057ddbc14e3853846
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SHA256
71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673
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SHA512
8708184d91622fe81664a98a5ce117e0107cb73c8f62b40fb3e60985cef1c84dda42359f55dc02beec551d62dcbabb6c3c2f28e079d92d70a35f5f97c0da71ce
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SSDEEP
12288:pVO8OUTlNJ8ZOBmwmk6u3t4CYDRZ4uhPatmHw0NMD5LZOY6RsQV:pVOJqxmk6u3t4CYD74htSNM1Ll6
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 behavioral1/memory/4616-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4616-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4616-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2480-2-0x0000000004A80000-0x0000000004B9B000-memory.dmp family_djvu behavioral1/memory/4616-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4616-17-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2856-20-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2856-26-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2856-25-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2856-27-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2856-30-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2856-32-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2856-33-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2856-34-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2856-35-0x0000000000400000-0x0000000000537000-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:
71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe -
Modifies file permissions 1 TTPs 1 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\5b37517f-b4b5-4132-8d1d-f47dba5a55e6\\71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe\" --AutoStart" 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.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 5 api.2ip.ua 7 api.2ip.ua 20 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
Processes:
71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exedescription pid process target process PID 2480 set thread context of 4616 2480 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe PID 3540 set thread context of 2856 3540 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.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:
71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exepid process 4616 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe 4616 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe 2856 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe 2856 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exedescription pid process target process PID 2480 wrote to memory of 4616 2480 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe PID 2480 wrote to memory of 4616 2480 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe PID 2480 wrote to memory of 4616 2480 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe PID 2480 wrote to memory of 4616 2480 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe PID 2480 wrote to memory of 4616 2480 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe PID 2480 wrote to memory of 4616 2480 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe PID 2480 wrote to memory of 4616 2480 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe PID 2480 wrote to memory of 4616 2480 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe PID 2480 wrote to memory of 4616 2480 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe PID 2480 wrote to memory of 4616 2480 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe PID 4616 wrote to memory of 4960 4616 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe icacls.exe PID 4616 wrote to memory of 4960 4616 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe icacls.exe PID 4616 wrote to memory of 4960 4616 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe icacls.exe PID 4616 wrote to memory of 3540 4616 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe PID 4616 wrote to memory of 3540 4616 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe PID 4616 wrote to memory of 3540 4616 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe PID 3540 wrote to memory of 2856 3540 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe PID 3540 wrote to memory of 2856 3540 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe PID 3540 wrote to memory of 2856 3540 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe PID 3540 wrote to memory of 2856 3540 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe PID 3540 wrote to memory of 2856 3540 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe PID 3540 wrote to memory of 2856 3540 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe PID 3540 wrote to memory of 2856 3540 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe PID 3540 wrote to memory of 2856 3540 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe PID 3540 wrote to memory of 2856 3540 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe PID 3540 wrote to memory of 2856 3540 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe 71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe"C:\Users\Admin\AppData\Local\Temp\71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2480 -
C:\Users\Admin\AppData\Local\Temp\71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe"C:\Users\Admin\AppData\Local\Temp\71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4616 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\5b37517f-b4b5-4132-8d1d-f47dba5a55e6" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:4960 -
C:\Users\Admin\AppData\Local\Temp\71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe"C:\Users\Admin\AppData\Local\Temp\71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3540 -
C:\Users\Admin\AppData\Local\Temp\71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe"C:\Users\Admin\AppData\Local\Temp\71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Suspicious behavior: EnumeratesProcesses
PID:2856
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize1KB
MD56728aea2631b86a76c237508d8ba9b55
SHA17a670f95cac088313f7558869162fe01c6dc0ec9
SHA256e1dd7380c6df33cd5702b032e0e359029d3ef7630f06ceb42cfdc154fd0baf7b
SHA512533080cd1ec40b8530cad5c9914e0a5156d225f7392283ed2607eda4f1db4a6930002274060ed9130a6f634222c2e15818e16a50579cfe7f5274d028d31212f5
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize724B
MD58202a1cd02e7d69597995cabbe881a12
SHA18858d9d934b7aa9330ee73de6c476acf19929ff6
SHA25658f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5
SHA51297ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize410B
MD525a7bcd56d3850f53e4c429c3820316a
SHA1d9e99c7cc6053e8d909b6569b23977c460f2ea45
SHA256085c11ebb1ad1b7c23b189ef5d04bcb66586de437fdc405af406d53d83904a3f
SHA512888f0fbbaf35b708fa05c0fbd76f140ec403cffe57fc3886912e84a21b0dfd4cb2cdf4e5eed413d27e03588ccdab4919c62a3f9b2fc17b85280ddaf40aa441e3
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize392B
MD50e582cb2b857632a3be5a459158cfb63
SHA18d67d507096891cbfa2388c6df579a98703af1aa
SHA256f0db9a5f481efc2054bfab76d6bc592994a37d3573d38e22860002621d623aca
SHA51237d6920e194bfbe6b974d0632e2bd64029e1e9b7195d3a7702b376c1ca447eeb12efea41cde38ed075951138cb0bec445aa785b4d32d0d4aa8afe3df4e897f6c
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C:\Users\Admin\AppData\Local\5b37517f-b4b5-4132-8d1d-f47dba5a55e6\71babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673.exe
Filesize710KB
MD52fa6ec658c61947f197c939f130bac1d
SHA1363abe0b0187e0463b32178057ddbc14e3853846
SHA25671babb4e984c118392eccc24b1ce4909e41ee2b49c17ad105c64f42847db5673
SHA5128708184d91622fe81664a98a5ce117e0107cb73c8f62b40fb3e60985cef1c84dda42359f55dc02beec551d62dcbabb6c3c2f28e079d92d70a35f5f97c0da71ce