Analysis
-
max time kernel
117s -
max time network
126s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
26-07-2024 02:44
Static task
static1
Behavioral task
behavioral1
Sample
5c171af1b9174fd62c8a9e3f2de9df00N.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
5c171af1b9174fd62c8a9e3f2de9df00N.exe
Resource
win10v2004-20240709-en
General
-
Target
5c171af1b9174fd62c8a9e3f2de9df00N.exe
-
Size
888KB
-
MD5
5c171af1b9174fd62c8a9e3f2de9df00
-
SHA1
88586368c833ce427e3e28af0a7bd5a18b0add4c
-
SHA256
856fed29facb17f62dd6449b1cfabe65de2b8cb478e52417e7c0069bde7db864
-
SHA512
5675000af023d8c2f1c4c9091f4356178ec2c8975f66ad259483ea02c9bf458280449143d64ad13ec2b65f81380da80eb7a835546752fbbfa1c917f5553f4af1
-
SSDEEP
24576:4TJYdNu+4/LN1WKVQ7A6WNETiczoc9myk:4GV4/LK+pPwRNmy
Malware Config
Extracted
djvu
http://cajgtus.com/test1/get.php
-
extension
.watz
-
offline_id
Lc3VTezPWbMhuVAQFzJUdeA68PwI7UDpc5aKHYt1
- payload_url
-
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
-
Detected Djvu ransomware 14 IoCs
Processes:
resource yara_rule behavioral1/memory/2100-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2100-8-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2956-5-0x0000000001EB0000-0x0000000001FCB000-memory.dmp family_djvu behavioral1/memory/2100-9-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2100-27-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1700-35-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1700-33-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1700-49-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1700-48-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1700-47-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1700-53-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1700-55-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1700-56-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1700-57-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
-
Modifies file permissions 1 TTPs 1 IoCs
-
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
5c171af1b9174fd62c8a9e3f2de9df00N.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\e0ead216-7265-4efb-8d99-2d7e775a9999\\5c171af1b9174fd62c8a9e3f2de9df00N.exe\" --AutoStart" 5c171af1b9174fd62c8a9e3f2de9df00N.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 9 api.2ip.ua 4 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
Processes:
5c171af1b9174fd62c8a9e3f2de9df00N.exe5c171af1b9174fd62c8a9e3f2de9df00N.exedescription pid process target process PID 2956 set thread context of 2100 2956 5c171af1b9174fd62c8a9e3f2de9df00N.exe 5c171af1b9174fd62c8a9e3f2de9df00N.exe PID 2820 set thread context of 1700 2820 5c171af1b9174fd62c8a9e3f2de9df00N.exe 5c171af1b9174fd62c8a9e3f2de9df00N.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
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:
icacls.exe5c171af1b9174fd62c8a9e3f2de9df00N.exe5c171af1b9174fd62c8a9e3f2de9df00N.exe5c171af1b9174fd62c8a9e3f2de9df00N.exe5c171af1b9174fd62c8a9e3f2de9df00N.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 5c171af1b9174fd62c8a9e3f2de9df00N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 5c171af1b9174fd62c8a9e3f2de9df00N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 5c171af1b9174fd62c8a9e3f2de9df00N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 5c171af1b9174fd62c8a9e3f2de9df00N.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
5c171af1b9174fd62c8a9e3f2de9df00N.exe5c171af1b9174fd62c8a9e3f2de9df00N.exepid process 2100 5c171af1b9174fd62c8a9e3f2de9df00N.exe 2100 5c171af1b9174fd62c8a9e3f2de9df00N.exe 1700 5c171af1b9174fd62c8a9e3f2de9df00N.exe 1700 5c171af1b9174fd62c8a9e3f2de9df00N.exe -
Suspicious use of WriteProcessMemory 30 IoCs
Processes:
5c171af1b9174fd62c8a9e3f2de9df00N.exe5c171af1b9174fd62c8a9e3f2de9df00N.exe5c171af1b9174fd62c8a9e3f2de9df00N.exedescription pid process target process PID 2956 wrote to memory of 2100 2956 5c171af1b9174fd62c8a9e3f2de9df00N.exe 5c171af1b9174fd62c8a9e3f2de9df00N.exe PID 2956 wrote to memory of 2100 2956 5c171af1b9174fd62c8a9e3f2de9df00N.exe 5c171af1b9174fd62c8a9e3f2de9df00N.exe PID 2956 wrote to memory of 2100 2956 5c171af1b9174fd62c8a9e3f2de9df00N.exe 5c171af1b9174fd62c8a9e3f2de9df00N.exe PID 2956 wrote to memory of 2100 2956 5c171af1b9174fd62c8a9e3f2de9df00N.exe 5c171af1b9174fd62c8a9e3f2de9df00N.exe PID 2956 wrote to memory of 2100 2956 5c171af1b9174fd62c8a9e3f2de9df00N.exe 5c171af1b9174fd62c8a9e3f2de9df00N.exe PID 2956 wrote to memory of 2100 2956 5c171af1b9174fd62c8a9e3f2de9df00N.exe 5c171af1b9174fd62c8a9e3f2de9df00N.exe PID 2956 wrote to memory of 2100 2956 5c171af1b9174fd62c8a9e3f2de9df00N.exe 5c171af1b9174fd62c8a9e3f2de9df00N.exe PID 2956 wrote to memory of 2100 2956 5c171af1b9174fd62c8a9e3f2de9df00N.exe 5c171af1b9174fd62c8a9e3f2de9df00N.exe PID 2956 wrote to memory of 2100 2956 5c171af1b9174fd62c8a9e3f2de9df00N.exe 5c171af1b9174fd62c8a9e3f2de9df00N.exe PID 2956 wrote to memory of 2100 2956 5c171af1b9174fd62c8a9e3f2de9df00N.exe 5c171af1b9174fd62c8a9e3f2de9df00N.exe PID 2956 wrote to memory of 2100 2956 5c171af1b9174fd62c8a9e3f2de9df00N.exe 5c171af1b9174fd62c8a9e3f2de9df00N.exe PID 2100 wrote to memory of 2624 2100 5c171af1b9174fd62c8a9e3f2de9df00N.exe icacls.exe PID 2100 wrote to memory of 2624 2100 5c171af1b9174fd62c8a9e3f2de9df00N.exe icacls.exe PID 2100 wrote to memory of 2624 2100 5c171af1b9174fd62c8a9e3f2de9df00N.exe icacls.exe PID 2100 wrote to memory of 2624 2100 5c171af1b9174fd62c8a9e3f2de9df00N.exe icacls.exe PID 2100 wrote to memory of 2820 2100 5c171af1b9174fd62c8a9e3f2de9df00N.exe 5c171af1b9174fd62c8a9e3f2de9df00N.exe PID 2100 wrote to memory of 2820 2100 5c171af1b9174fd62c8a9e3f2de9df00N.exe 5c171af1b9174fd62c8a9e3f2de9df00N.exe PID 2100 wrote to memory of 2820 2100 5c171af1b9174fd62c8a9e3f2de9df00N.exe 5c171af1b9174fd62c8a9e3f2de9df00N.exe PID 2100 wrote to memory of 2820 2100 5c171af1b9174fd62c8a9e3f2de9df00N.exe 5c171af1b9174fd62c8a9e3f2de9df00N.exe PID 2820 wrote to memory of 1700 2820 5c171af1b9174fd62c8a9e3f2de9df00N.exe 5c171af1b9174fd62c8a9e3f2de9df00N.exe PID 2820 wrote to memory of 1700 2820 5c171af1b9174fd62c8a9e3f2de9df00N.exe 5c171af1b9174fd62c8a9e3f2de9df00N.exe PID 2820 wrote to memory of 1700 2820 5c171af1b9174fd62c8a9e3f2de9df00N.exe 5c171af1b9174fd62c8a9e3f2de9df00N.exe PID 2820 wrote to memory of 1700 2820 5c171af1b9174fd62c8a9e3f2de9df00N.exe 5c171af1b9174fd62c8a9e3f2de9df00N.exe PID 2820 wrote to memory of 1700 2820 5c171af1b9174fd62c8a9e3f2de9df00N.exe 5c171af1b9174fd62c8a9e3f2de9df00N.exe PID 2820 wrote to memory of 1700 2820 5c171af1b9174fd62c8a9e3f2de9df00N.exe 5c171af1b9174fd62c8a9e3f2de9df00N.exe PID 2820 wrote to memory of 1700 2820 5c171af1b9174fd62c8a9e3f2de9df00N.exe 5c171af1b9174fd62c8a9e3f2de9df00N.exe PID 2820 wrote to memory of 1700 2820 5c171af1b9174fd62c8a9e3f2de9df00N.exe 5c171af1b9174fd62c8a9e3f2de9df00N.exe PID 2820 wrote to memory of 1700 2820 5c171af1b9174fd62c8a9e3f2de9df00N.exe 5c171af1b9174fd62c8a9e3f2de9df00N.exe PID 2820 wrote to memory of 1700 2820 5c171af1b9174fd62c8a9e3f2de9df00N.exe 5c171af1b9174fd62c8a9e3f2de9df00N.exe PID 2820 wrote to memory of 1700 2820 5c171af1b9174fd62c8a9e3f2de9df00N.exe 5c171af1b9174fd62c8a9e3f2de9df00N.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\5c171af1b9174fd62c8a9e3f2de9df00N.exe"C:\Users\Admin\AppData\Local\Temp\5c171af1b9174fd62c8a9e3f2de9df00N.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2956 -
C:\Users\Admin\AppData\Local\Temp\5c171af1b9174fd62c8a9e3f2de9df00N.exe"C:\Users\Admin\AppData\Local\Temp\5c171af1b9174fd62c8a9e3f2de9df00N.exe"2⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2100 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\e0ead216-7265-4efb-8d99-2d7e775a9999" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:2624 -
C:\Users\Admin\AppData\Local\Temp\5c171af1b9174fd62c8a9e3f2de9df00N.exe"C:\Users\Admin\AppData\Local\Temp\5c171af1b9174fd62c8a9e3f2de9df00N.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2820 -
C:\Users\Admin\AppData\Local\Temp\5c171af1b9174fd62c8a9e3f2de9df00N.exe"C:\Users\Admin\AppData\Local\Temp\5c171af1b9174fd62c8a9e3f2de9df00N.exe" --Admin IsNotAutoStart IsNotTask4⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:1700
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
1KB
MD57fb5fa1534dcf77f2125b2403b30a0ee
SHA1365d96812a69ac0a4611ea4b70a3f306576cc3ea
SHA25633a39e9ec2133230533a686ec43760026e014a3828c703707acbc150fe40fd6f
SHA512a9279fd60505a1bfeef6fb07834cad0fd5be02fd405573fc1a5f59b991e9f88f5e81c32fe910f69bdc6585e71f02559895149eaf49c25b8ff955459fd60c0d2e
-
Filesize
436B
MD5971c514f84bba0785f80aa1c23edfd79
SHA1732acea710a87530c6b08ecdf32a110d254a54c8
SHA256f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895
SHA51243dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12
Filesize174B
MD5e794408964a3e46f759b23cca18091bf
SHA1772ccf3fdde3d9cd4cd6b7226604a7051243b518
SHA256996ed73d951680c1b9e86536ed26e55016ea09c9a765b8eaf9e7553fa399c51a
SHA512574da2473316481f8d279be36f9e6f1199546c741ff8d5247d9d250c2d32d9f35df109abfc18cbf6031991749c30443cdb62e62c523229447adbf5ac3680875f
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize170B
MD56611da73fe0e90472626e64ea6d1e2ea
SHA1e8f7c22538820986e1ce1225ee49359bfed76f92
SHA2567274bde6f6f0cd149dbe90c8b7444c10182c08b97b752cceb0a2e582885ac6ca
SHA512487d2d4547f63b2e4d555b99bf65f0ddb0a905b0e742273c73c830fe7f1547953c4ae0039aedba533ec9920f8a8bfcc3c6761cfc66afa4f5502042118417f625
-
Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
-
C:\Users\Admin\AppData\Local\e0ead216-7265-4efb-8d99-2d7e775a9999\5c171af1b9174fd62c8a9e3f2de9df00N.exe
Filesize888KB
MD55c171af1b9174fd62c8a9e3f2de9df00
SHA188586368c833ce427e3e28af0a7bd5a18b0add4c
SHA256856fed29facb17f62dd6449b1cfabe65de2b8cb478e52417e7c0069bde7db864
SHA5125675000af023d8c2f1c4c9091f4356178ec2c8975f66ad259483ea02c9bf458280449143d64ad13ec2b65f81380da80eb7a835546752fbbfa1c917f5553f4af1