Analysis
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max time kernel
144s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
17-10-2024 21:46
Static task
static1
Behavioral task
behavioral1
Sample
c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe
Resource
win10v2004-20241007-en
General
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Target
c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe
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Size
757KB
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MD5
bd4d06f1e0139f61fed18f524e00ff59
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SHA1
8a8cf66f6ecd4b4591ab7839e7865c55d287e760
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SHA256
c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781
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SHA512
ca3f80d45ed1f52f17f7b02827ff5e1a70d4cbe25274864fc5aa2445d0e77654feddaad8935e356eea5e043e2d71ec513daf3466df8030eac7c69aefc73f9fbb
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SSDEEP
12288:QLMAH6P93Sr/C3XgEs4vkTZNt4Qtz+8rEL61rR9N0xUYsHF:PTPwr/CAbx/QL61tJYsl
Malware Config
Extracted
djvu
http://sajdfue.com/test2/get.php
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extension
.bgzq
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offline_id
Z6iwSvCoAt8T8K2ROxecuXHPNHv7eDyWrc8Ks7t1
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payload_url
http://sdfjhuz.com/dl/build2.exe
http://sajdfue.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/54cdfd152fe98eedb628a1f4ddb7076420240421150208/403a27 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: 0864PsawqS
Signatures
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Detected Djvu ransomware 13 IoCs
Processes:
resource yara_rule behavioral1/memory/2364-2-0x00000000059C0000-0x0000000005ADB000-memory.dmp family_djvu behavioral1/memory/2008-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2008-7-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2008-8-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2008-26-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3020-31-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3020-45-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3020-46-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3020-47-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3020-53-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3020-54-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3020-51-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3020-55-0x0000000000400000-0x0000000000537000-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:
c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\cd777c88-9fb5-4473-a18b-17c0508af718\\c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe\" --AutoStart" c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.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 9 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
Processes:
c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exec4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exedescription pid process target process PID 2364 set thread context of 2008 2364 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe PID 2628 set thread context of 3020 2628 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.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:
c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exec4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exeicacls.exec4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exec4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exec4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exepid process 2008 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe 2008 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe 3020 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe 3020 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe -
Suspicious use of WriteProcessMemory 30 IoCs
Processes:
c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exec4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exec4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exedescription pid process target process PID 2364 wrote to memory of 2008 2364 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe PID 2364 wrote to memory of 2008 2364 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe PID 2364 wrote to memory of 2008 2364 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe PID 2364 wrote to memory of 2008 2364 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe PID 2364 wrote to memory of 2008 2364 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe PID 2364 wrote to memory of 2008 2364 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe PID 2364 wrote to memory of 2008 2364 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe PID 2364 wrote to memory of 2008 2364 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe PID 2364 wrote to memory of 2008 2364 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe PID 2364 wrote to memory of 2008 2364 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe PID 2364 wrote to memory of 2008 2364 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe PID 2008 wrote to memory of 3032 2008 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe icacls.exe PID 2008 wrote to memory of 3032 2008 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe icacls.exe PID 2008 wrote to memory of 3032 2008 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe icacls.exe PID 2008 wrote to memory of 3032 2008 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe icacls.exe PID 2008 wrote to memory of 2628 2008 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe PID 2008 wrote to memory of 2628 2008 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe PID 2008 wrote to memory of 2628 2008 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe PID 2008 wrote to memory of 2628 2008 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe PID 2628 wrote to memory of 3020 2628 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe PID 2628 wrote to memory of 3020 2628 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe PID 2628 wrote to memory of 3020 2628 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe PID 2628 wrote to memory of 3020 2628 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe PID 2628 wrote to memory of 3020 2628 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe PID 2628 wrote to memory of 3020 2628 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe PID 2628 wrote to memory of 3020 2628 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe PID 2628 wrote to memory of 3020 2628 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe PID 2628 wrote to memory of 3020 2628 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe PID 2628 wrote to memory of 3020 2628 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe PID 2628 wrote to memory of 3020 2628 c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe"C:\Users\Admin\AppData\Local\Temp\c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2364 -
C:\Users\Admin\AppData\Local\Temp\c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe"C:\Users\Admin\AppData\Local\Temp\c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe"2⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2008 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\cd777c88-9fb5-4473-a18b-17c0508af718" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:3032
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C:\Users\Admin\AppData\Local\Temp\c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe"C:\Users\Admin\AppData\Local\Temp\c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2628 -
C:\Users\Admin\AppData\Local\Temp\c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe"C:\Users\Admin\AppData\Local\Temp\c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe" --Admin IsNotAutoStart IsNotTask4⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:3020
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD567e486b2f148a3fca863728242b6273e
SHA1452a84c183d7ea5b7c015b597e94af8eef66d44a
SHA256facaf1c3a4bf232abce19a2d534e495b0d3adc7dbe3797d336249aa6f70adcfb
SHA512d3a37da3bb10a9736dc03e8b2b49baceef5d73c026e2077b8ebc1b786f2c9b2f807e0aa13a5866cf3b3cafd2bc506242ef139c423eaffb050bbb87773e53881e
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Filesize
436B
MD5971c514f84bba0785f80aa1c23edfd79
SHA1732acea710a87530c6b08ecdf32a110d254a54c8
SHA256f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895
SHA51243dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12
Filesize174B
MD5d6e5c957f717b17accf8579fae1c02ec
SHA1d35ac1d6a61903b7648b8da067e3f6f8c5ec8fd3
SHA25680a29d8219d953349a78d0072beda0f526f02898d1bfa0bcc38e3fe39e4058e0
SHA512b558e57a7bbda942ffda9caea2f8426307b394c3ceeb4c81ed75fb208325e94e943c250b7d273167ec52bf8dab9dcffc188bc7e893983c6b83847bf8a91858c6
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize170B
MD57f0a0caad15f62cf032bc2fd236ba40f
SHA1fb3723cca67a0488b2ed6f0b59593861e9e9e616
SHA2563b0346071423672b5a42c82e42d78731f77e7827fe97500448a3bcf6c4f3a5d9
SHA512d379a34e8f765dbd0c5ae955c16cb864fd899dfe26f32e43b3796a0ac738dde9b0ef0f26d6c259a81bd7e7b16b577db7bdf27864e99b699fdf89b40470d80f98
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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C:\Users\Admin\AppData\Local\cd777c88-9fb5-4473-a18b-17c0508af718\c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781.exe
Filesize757KB
MD5bd4d06f1e0139f61fed18f524e00ff59
SHA18a8cf66f6ecd4b4591ab7839e7865c55d287e760
SHA256c4b93b302d810c73be3886dc8aa03c230adb8a5df3611bedfa92995412fe2781
SHA512ca3f80d45ed1f52f17f7b02827ff5e1a70d4cbe25274864fc5aa2445d0e77654feddaad8935e356eea5e043e2d71ec513daf3466df8030eac7c69aefc73f9fbb