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Windows
Analysis Report
9dfb6b41c90732c9206ef6f65a941b1061126ead69e3715d79519196dad5899c_payload.exe
Overview
General Information
Detection
Babuk, Djvu, Vidar
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Yara detected AntiVM3
Yara detected Babuk Ransomware
Yara detected Djvu Ransomware
Yara detected Vidar stealer
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Found stalling execution ending in API Sleep call
Infects executable files (exe, dll, sys, html)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Modifies existing user documents (likely ransomware behavior)
Searches for specific processes (likely to inject)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Writes a notice file (html or txt) to demand a ransom
Writes many files with high entropy
AV process strings found (often used to terminate AV products)
Checks if Antivirus/Antispyware/Firewall program is installed (via WMI)
Contains functionality for execution timing, often used to detect debuggers
Contains functionality to call native functions
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Contains functionality to check if a debugger is running (OutputDebugString,GetLastError)
Contains functionality to check the parent process ID (often done to detect debuggers and analysis systems)
Contains functionality to dynamically determine API calls
Contains functionality to open a port and listen for incoming connection (possibly a backdoor)
Contains functionality to query CPU information (cpuid)
Contains functionality to query locales information (e.g. system language)
Contains functionality to query network adapater information
Contains functionality to read the PEB
Contains functionality to record screenshots
Contains functionality which may be used to detect a debugger (GetProcessHeap)
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Detected TCP or UDP traffic on non-standard ports
Detected potential crypto function
Downloads executable code via HTTP
Dropped file seen in connection with other malware
Drops PE files
Drops certificate files (DER)
Extensive use of GetProcAddress (often used to hide API calls)
Found dropped PE file which has not been started or loaded
Found evasive API chain (date check)
Found evasive API chain (may stop execution after checking a module file name)
Found inlined nop instructions (likely shell or obfuscated code)
Found potential string decryption / allocating functions
HTTP GET or POST without a user agent
IP address seen in connection with other malware
Internet Provider seen in connection with other malware
JA3 SSL client fingerprint seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
Monitors certain registry keys / values for changes (often done to protect autostart functionality)
PE file contains more sections than normal
PE file contains sections with non-standard names
Queries information about the installed CPU (vendor, model number etc)
Queries the volume information (name, serial number etc) of a device
Tries to load missing DLLs
Uses 32bit PE files
Uses Microsoft's Enhanced Cryptographic Provider
Uses cacls to modify the permissions of files
Uses code obfuscation techniques (call, push, ret)
Uses the keyboard layout for branch decision (may execute only for specific keyboard layouts)
Yara detected Credential Stealer
Yara signature match
Classification
- System is w10x64
- 9dfb6b41c90732c9206ef6f65a941b1061126ead69e3715d79519196dad5899c_payload.exe (PID: 7496 cmdline:
C:\Users\u ser\Deskto p\9dfb6b41 c90732c920 6ef6f65a94 1b1061126e ad69e3715d 79519196da d5899c_pay load.exe MD5: 3EEB7B2030517F91FDF0F4C5278D8E76) - icacls.exe (PID: 7576 cmdline:
icacls "C: \Users\use r\AppData\ Local\a59e b08a-a827- 4835-802e- c9638c2593 65" /deny *S-1-1-0:( OI)(CI)(DE ,DC) MD5: 2E49585E4E08565F52090B144062F97E) - 9dfb6b41c90732c9206ef6f65a941b1061126ead69e3715d79519196dad5899c_payload.exe (PID: 7608 cmdline:
"C:\Users\ user\Deskt op\9dfb6b4 1c90732c92 06ef6f65a9 41b1061126 ead69e3715 d79519196d ad5899c_pa yload.exe" --Admin I sNotAutoSt art IsNotT ask MD5: 3EEB7B2030517F91FDF0F4C5278D8E76) - build2.exe (PID: 7756 cmdline:
"C:\Users\ user\AppDa ta\Local\2 043c9f1-94 22-4e25-98 7e-e8805ac fbfc0\buil d2.exe" MD5: C4070DA9F9B0581171AF16E681CCDFF8) - build2.exe (PID: 7772 cmdline:
"C:\Users\ user\AppDa ta\Local\2 043c9f1-94 22-4e25-98 7e-e8805ac fbfc0\buil d2.exe" MD5: C4070DA9F9B0581171AF16E681CCDFF8)
- 9dfb6b41c90732c9206ef6f65a941b1061126ead69e3715d79519196dad5899c_payload.exe (PID: 7596 cmdline:
C:\Users\u ser\AppDat a\Local\a5 9eb08a-a82 7-4835-802 e-c9638c25 9365\9dfb6 b41c90732c 9206ef6f65 a941b10611 26ead69e37 15d7951919 6dad5899c_ payload.ex e --Task MD5: 3EEB7B2030517F91FDF0F4C5278D8E76)
- 9dfb6b41c90732c9206ef6f65a941b1061126ead69e3715d79519196dad5899c_payload.exe (PID: 7872 cmdline:
"C:\Users\ user\AppDa ta\Local\a 59eb08a-a8 27-4835-80 2e-c9638c2 59365\9dfb 6b41c90732 c9206ef6f6 5a941b1061 126ead69e3 715d795191 96dad5899c _payload.e xe" --Auto Start MD5: 3EEB7B2030517F91FDF0F4C5278D8E76)
- 9dfb6b41c90732c9206ef6f65a941b1061126ead69e3715d79519196dad5899c_payload.exe (PID: 7256 cmdline:
"C:\Users\ user\AppDa ta\Local\a 59eb08a-a8 27-4835-80 2e-c9638c2 59365\9dfb 6b41c90732 c9206ef6f6 5a941b1061 126ead69e3 715d795191 96dad5899c _payload.e xe" --Auto Start MD5: 3EEB7B2030517F91FDF0F4C5278D8E76)
- cleanup
Name | Description | Attribution | Blogpost URLs | Link |
---|---|---|---|---|
Babuk | Babuk Ransomware is a sophisticated ransomware compiled for several platforms. Windows and ARM for Linux are the most used compiled versions, but ESX and a 32bit old PE executable were observed over time. as well It uses an Elliptic Curve Algorithm (Montgomery Algorithm) to build the encryption keys. | No Attribution |
Name | Description | Attribution | Blogpost URLs | Link |
---|---|---|---|---|
STOP, Djvu | STOP Djvu Ransomware it is a ransomware which encrypts user data through AES-256 and adds one of the dozen available extensions as marker to the encrypted file's name. It is not used to encrypt the entire file but only the first 5 MB. In its original version it was able to run offline and, in that case, it used a hard-coded key which could be extracted to decrypt files. | No Attribution |
Name | Description | Attribution | Blogpost URLs | Link |
---|---|---|---|---|
Vidar | Vidar is a forked malware based on Arkei. It seems this stealer is one of the first that is grabbing information on 2FA Software and Tor Browser. | No Attribution |
{"Download URLs": ["http://brusuax.com/dl/build2.exe", "http://zexeq.com/files/1/build3.exe"], "C2 url": "http://zexeq.com/test1/get.php", "Ransom note file": "_readme.txt", "Ransom note": "ATTENTION!\r\n\r\nDon't worry, you can return all your files!\r\nAll your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key.\r\nThe only method of recovering files is to purchase decrypt tool and unique key for you.\r\nThis software will decrypt all your encrypted files.\r\nWhat guarantees you have?\r\nYou can send one of your encrypted file from your PC and we decrypt it for free.\r\nBut we can decrypt only 1 file for free. File must not contain valuable information.\r\nYou can get and look video overview decrypt tool:\r\nhttps://we.tl/t-99MNqXMrdS\r\nPrice of private key and decrypt software is $1999.\r\nDiscount 50% available if you contact us first 72 hours, that's price for you is $999.\r\nPlease note that you'll never restore your data without payment.\r\nCheck your e-mail \"Spam\" or \"Junk\" folder if you don't get answer more than 6 hours.\r\n\r\n\r\nTo get this software you need write on our e-mail:\r\nsupport@freshingmail.top\r\n\r\nReserve e-mail address to contact us:\r\ndatarestorehelpyou@airmail.cc\r\n\r\nYour personal ID:\r\n0840ASdw", "Ignore Files": ["ntuser.dat", "ntuser.dat.LOG1", "ntuser.dat.LOG2", "ntuser.pol", ".sys", ".ini", ".DLL", ".dll", ".blf", ".bat", ".lnk", ".regtrans-ms", "C:\\SystemID\\", "C:\\Users\\Default User\\", "C:\\Users\\Public\\", "C:\\Users\\All Users\\", "C:\\Users\\Default\\", "C:\\Documents and Settings\\", "C:\\ProgramData\\", "C:\\Recovery\\", "C:\\System Volume Information\\", "C:\\Users\\%username%\\AppData\\Roaming\\", "C:\\Users\\%username%\\AppData\\Local\\", "C:\\Windows\\", "C:\\PerfLogs\\", "C:\\ProgramData\\Microsoft\\", "C:\\ProgramData\\Package Cache\\", "C:\\Users\\Public\\", "C:\\$Recycle.Bin\\", "C:\\$WINDOWS.~BT\\", "C:\\dell\\", "C:\\Intel\\", "C:\\MSOCache\\", "C:\\Program Files\\", "C:\\Program Files (x86)\\", "C:\\Games\\", "C:\\Windows.old\\", "D:\\Users\\%username%\\AppData\\Roaming\\", "D:\\Users\\%username%\\AppData\\Local\\", "D:\\Windows\\", "D:\\PerfLogs\\", "D:\\ProgramData\\Desktop\\", "D:\\ProgramData\\Microsoft\\", "D:\\ProgramData\\Package Cache\\", "D:\\Users\\Public\\", "D:\\$Recycle.Bin\\", "D:\\$WINDOWS.~BT\\", "D:\\dell\\", "D:\\Intel\\", "D:\\MSOCache\\", "D:\\Program Files\\", "D:\\Program Files (x86)\\", "D:\\Games\\", "E:\\Users\\%username%\\AppData\\Roaming\\", "E:\\Users\\%username%\\AppData\\Local\\", "E:\\Windows\\", "E:\\PerfLogs\\", "E:\\ProgramData\\Desktop\\", "E:\\ProgramData\\Microsoft\\", "E:\\ProgramData\\Package Cache\\", "E:\\Users\\Public\\", "E:\\$Recycle.Bin\\", "E:\\$WINDOWS.~BT\\", "E:\\dell\\", "E:\\Intel\\", "E:\\MSOCache\\", "E:\\Program Files\\", "E:\\Program Files (x86)\\", "E:\\Games\\", "F:\\Users\\%username%\\AppData\\Roaming\\", "F:\\Users\\%username%\\AppData\\Local\\", "F:\\Windows\\", "F:\\PerfLogs\\", "F:\\ProgramData\\Desktop\\", "F:\\ProgramData\\Microsoft\\", "F:\\Users\\Public\\", "F:\\$Recycle.Bin\\", "F:\\$WINDOWS.~BT\\", "F:\\dell\\", "F:\\Intel\\"], "Public Key": "-----BEGIN PUBLIC KEY-----\\\\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnyUOiB2xE7x0hu\\/sWjMd\\\\nsFuLWuCJ5W6ojiVZfPkO3WsiKQE44ncZ7vAvQJa0bzVOF1YKNM9ycEaFo3i1IYPt\\\\nxz\\/jq68R20b+hkZtNTv54hcU7\\/Ez+0pdyzteV5Zhg7wXU130hV2tpLc73CPJWPbH\\\\n1Cb\\/TPj2BV1MyBjdQNygBMKZXr5AiecEZscmy3tPXp6G+PWkUj06eqE1m7OGGguB\\\\n99Z7DX1\\/1zY5jmMj5lpDmJWwWf7WaMni1yYPeNWGd67CNvvOmb+YjuTg4HXMAgQ2\\\\nWnCip4mCf70IqmZ2U\\/J0OUQFuCkNaQb0Q0aLFcT4bMDszWR\\/xOhuh2YWJQ0LO+gm\\\\nJQIDAQAB\\\\n-----END PUBLIC KEY-----"}
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_Djvu | Yara detected Djvu Ransomware | Joe Security | ||
Windows_Ransomware_Stop_1e8d48ff | unknown | unknown |
| |
MALWARE_Win_STOP | Detects STOP ransomware | ditekSHen |
|
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_Djvu | Yara detected Djvu Ransomware | Joe Security | ||
Windows_Ransomware_Stop_1e8d48ff | unknown | unknown |
| |
MALWARE_Win_STOP | Detects STOP ransomware | ditekSHen |
| |
JoeSecurity_Djvu | Yara detected Djvu Ransomware | Joe Security | ||
Windows_Ransomware_Stop_1e8d48ff | unknown | unknown |
| |
Click to see the 1 entries |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_Djvu | Yara detected Djvu Ransomware | Joe Security | ||
Windows_Ransomware_Stop_1e8d48ff | unknown | unknown |
| |
Windows_Ransomware_Stop_1e8d48ff | unknown | unknown |
| |
Windows_Ransomware_Stop_1e8d48ff | unknown | unknown |
| |
JoeSecurity_Djvu | Yara detected Djvu Ransomware | Joe Security | ||
Click to see the 44 entries |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_Djvu | Yara detected Djvu Ransomware | Joe Security | ||
Windows_Ransomware_Stop_1e8d48ff | unknown | unknown |
| |
MALWARE_Win_STOP | Detects STOP ransomware | ditekSHen |
| |
JoeSecurity_Djvu | Yara detected Djvu Ransomware | Joe Security | ||
Windows_Ransomware_Stop_1e8d48ff | unknown | unknown |
| |
Click to see the 25 entries |
⊘No Sigma rule has matched
Timestamp: | 192.168.2.4175.120.254.949732802833438 01/12/24-06:48:00.971760 |
SID: | 2833438 |
Source Port: | 49732 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.2.4175.120.254.949740802833438 01/12/24-06:48:06.593430 |
SID: | 2833438 |
Source Port: | 49740 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.2.4175.120.254.949746802833438 01/12/24-06:48:12.962877 |
SID: | 2833438 |
Source Port: | 49746 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.2.4186.147.159.14949734802020826 01/12/24-06:48:01.179520 |
SID: | 2020826 |
Source Port: | 49734 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.2.4186.147.159.14949734802036333 01/12/24-06:48:01.179520 |
SID: | 2036333 |
Source Port: | 49734 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.2.4175.120.254.949735802020826 01/12/24-06:48:04.269814 |
SID: | 2020826 |
Source Port: | 49735 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.2.4175.120.254.949735802036333 01/12/24-06:48:04.269814 |
SID: | 2036333 |
Source Port: | 49735 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Click to jump to signature section
Show All Signature Results
AV Detection |
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Source: | Avira: |
Source: | URL Reputation: | ||
Source: | Avira URL Cloud: | ||
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Source: | Malware Configuration Extractor: |