Analysis
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max time kernel
290s -
max time network
300s -
platform
windows10-1703_x64 -
resource
win10-20240611-en -
resource tags
arch:x64arch:x86image:win10-20240611-enlocale:en-usos:windows10-1703-x64system -
submitted
08-08-2024 22:34
Static task
static1
Behavioral task
behavioral1
Sample
3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe
Resource
win10-20240611-en
General
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Target
3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe
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Size
729KB
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MD5
d7528cd33b73718b5949277420681f90
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SHA1
61d97f8da20ff2995890ce5f2c8a2c9e6e51c078
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SHA256
3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1
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SHA512
b3dab709e19a2a8bad92b259ea1739ad55564f6fe31e9f4e502b6280ae6c70cdf5a0f1fda208887da4bbcf9213986e2038abe6a09dc2940998df08d82e87d474
-
SSDEEP
12288:koywWrwlTyC9yR+xBP4wMpAuhjH8/Hl19KKjNgzqE0CM6EpJMwk:PlTX9Xj4w+hbM1/g2kM
Malware Config
Extracted
djvu
http://cajgtus.com/test1/get.php
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extension
.watz
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offline_id
Lc3VTezPWbMhuVAQFzJUdeA68PwI7UDpc5aKHYt1
- payload_url
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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/abe121434ad837dd5bdd03878a14485820240531135509/34284d 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: 0874PsawqS
Signatures
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Detected Djvu ransomware 15 IoCs
Processes:
resource yara_rule behavioral2/memory/5020-2-0x0000000002250000-0x000000000236B000-memory.dmp family_djvu behavioral2/memory/5024-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/5024-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/5024-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/5024-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/5024-21-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2372-25-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2372-26-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2372-28-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2372-36-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2372-35-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2372-41-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2372-43-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2372-44-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2372-45-0x0000000000400000-0x0000000000537000-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:
3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\2951d792-29dd-4460-b161-ad13a3e7fd98\\3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe\" --AutoStart" 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.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 9 api.2ip.ua 1 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
Processes:
3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exedescription pid process target process PID 5020 set thread context of 5024 5020 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe PID 1416 set thread context of 2372 1416 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exeicacls.exe3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exepid process 5024 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe 5024 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe 2372 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe 2372 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exedescription pid process target process PID 5020 wrote to memory of 5024 5020 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe PID 5020 wrote to memory of 5024 5020 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe PID 5020 wrote to memory of 5024 5020 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe PID 5020 wrote to memory of 5024 5020 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe PID 5020 wrote to memory of 5024 5020 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe PID 5020 wrote to memory of 5024 5020 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe PID 5020 wrote to memory of 5024 5020 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe PID 5020 wrote to memory of 5024 5020 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe PID 5020 wrote to memory of 5024 5020 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe PID 5020 wrote to memory of 5024 5020 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe PID 5024 wrote to memory of 3112 5024 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe icacls.exe PID 5024 wrote to memory of 3112 5024 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe icacls.exe PID 5024 wrote to memory of 3112 5024 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe icacls.exe PID 5024 wrote to memory of 1416 5024 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe PID 5024 wrote to memory of 1416 5024 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe PID 5024 wrote to memory of 1416 5024 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe PID 1416 wrote to memory of 2372 1416 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe PID 1416 wrote to memory of 2372 1416 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe PID 1416 wrote to memory of 2372 1416 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe PID 1416 wrote to memory of 2372 1416 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe PID 1416 wrote to memory of 2372 1416 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe PID 1416 wrote to memory of 2372 1416 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe PID 1416 wrote to memory of 2372 1416 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe PID 1416 wrote to memory of 2372 1416 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe PID 1416 wrote to memory of 2372 1416 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe PID 1416 wrote to memory of 2372 1416 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe 3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe"C:\Users\Admin\AppData\Local\Temp\3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5020 -
C:\Users\Admin\AppData\Local\Temp\3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe"C:\Users\Admin\AppData\Local\Temp\3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe"2⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5024 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\2951d792-29dd-4460-b161-ad13a3e7fd98" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:3112 -
C:\Users\Admin\AppData\Local\Temp\3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe"C:\Users\Admin\AppData\Local\Temp\3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1416 -
C:\Users\Admin\AppData\Local\Temp\3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe"C:\Users\Admin\AppData\Local\Temp\3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe" --Admin IsNotAutoStart IsNotTask4⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2372
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD57fb5fa1534dcf77f2125b2403b30a0ee
SHA1365d96812a69ac0a4611ea4b70a3f306576cc3ea
SHA25633a39e9ec2133230533a686ec43760026e014a3828c703707acbc150fe40fd6f
SHA512a9279fd60505a1bfeef6fb07834cad0fd5be02fd405573fc1a5f59b991e9f88f5e81c32fe910f69bdc6585e71f02559895149eaf49c25b8ff955459fd60c0d2e
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Filesize
436B
MD5971c514f84bba0785f80aa1c23edfd79
SHA1732acea710a87530c6b08ecdf32a110d254a54c8
SHA256f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895
SHA51243dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12
Filesize174B
MD525006d6d9a0df9a1587ec017befe3e36
SHA1ad0f1d47438f7cd567bd6392e2520a89ea36cf8e
SHA256c53c3a4984109e9c9d35274d943cab6759b2fdf07fd867c4d278f1802413016a
SHA5128d429a86039fa6937d5177209f69105bc32f88a105863e0ff3bca041d812ad2801b9814e46f346e82687a1b4805125b1148cf3ea1c0c0b2bbe523f7cf61b2d0d
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize170B
MD5468a33d34bbc51bab1f56cebb69624d3
SHA1e8c2cabe60358e113f92ad9bdcf110b7b79e9d22
SHA256a531aed80bd73f6e3ef7cf9909b330cf9c35f04ecbd2e334f50863765f1dc639
SHA51284354f4e5c709806468e26183c15925930025b959101c4f39f56e6ac8dc7ae4ee482de458275096302b8f06df7180b9eff90ac9c5ed0c7b68f13f9f0efe2e10a
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C:\Users\Admin\AppData\Local\2951d792-29dd-4460-b161-ad13a3e7fd98\3b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1.exe
Filesize729KB
MD5d7528cd33b73718b5949277420681f90
SHA161d97f8da20ff2995890ce5f2c8a2c9e6e51c078
SHA2563b8d07693e296aee36e7607c71503d981396a21b367e169146afdd052cdcf4d1
SHA512b3dab709e19a2a8bad92b259ea1739ad55564f6fe31e9f4e502b6280ae6c70cdf5a0f1fda208887da4bbcf9213986e2038abe6a09dc2940998df08d82e87d474