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Windows
Analysis Report
8jvTeVxooN.exe
Overview
General Information
Sample name: | 8jvTeVxooN.exerenamed because original name is a hash value |
Original sample name: | efd7d885536ef4fd62cbc513bbe04d6e.exe |
Analysis ID: | 1430799 |
MD5: | efd7d885536ef4fd62cbc513bbe04d6e |
SHA1: | 7e3a86188066eaa404a60c9686624fda1b12ae51 |
SHA256: | 6c0bd6cae657449a07dcb78940ea732d7e4e24546477b083116bff4c99bd417d |
Tags: | exeStop |
Infos: | |
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
Antivirus detection for dropped file
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)
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 launch a program with higher privileges
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 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 (may stop execution after checking a module file name)
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 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
Sample file is different than original file name gathered from version info
Sigma detected: CurrentVersion Autorun Keys Modification
Uses 32bit PE files
Uses Microsoft's Enhanced Cryptographic Provider
Uses a known web browser user agent for HTTP communication
Uses cacls to modify the permissions of files
Uses code obfuscation techniques (call, push, ret)
Yara detected Credential Stealer
Yara signature match
Classification
- System is w10x64
- 8jvTeVxooN.exe (PID: 7120 cmdline:
"C:\Users\ user\Deskt op\8jvTeVx ooN.exe" MD5: EFD7D885536EF4FD62CBC513BBE04D6E) - 8jvTeVxooN.exe (PID: 2700 cmdline:
"C:\Users\ user\Deskt op\8jvTeVx ooN.exe" MD5: EFD7D885536EF4FD62CBC513BBE04D6E) - icacls.exe (PID: 6520 cmdline:
icacls "C: \Users\use r\AppData\ Local\b781 4b20-ebff- 4c00-9012- 5867192296 31" /deny *S-1-1-0:( OI)(CI)(DE ,DC) MD5: 2E49585E4E08565F52090B144062F97E) - 8jvTeVxooN.exe (PID: 4444 cmdline:
"C:\Users\ user\Deskt op\8jvTeVx ooN.exe" - -Admin IsN otAutoStar t IsNotTas k MD5: EFD7D885536EF4FD62CBC513BBE04D6E) - 8jvTeVxooN.exe (PID: 5772 cmdline:
"C:\Users\ user\Deskt op\8jvTeVx ooN.exe" - -Admin IsN otAutoStar t IsNotTas k MD5: EFD7D885536EF4FD62CBC513BBE04D6E) - build2.exe (PID: 6212 cmdline:
"C:\Users\ user\AppDa ta\Local\1 73a81f0-f2 42-45ec-86 85-036e62f 4f13f\buil d2.exe" MD5: A04031208441077A014F42095FF86107) - build2.exe (PID: 6232 cmdline:
"C:\Users\ user\AppDa ta\Local\1 73a81f0-f2 42-45ec-86 85-036e62f 4f13f\buil d2.exe" MD5: A04031208441077A014F42095FF86107)
- 8jvTeVxooN.exe (PID: 7004 cmdline:
C:\Users\u ser\AppDat a\Local\b7 814b20-ebf f-4c00-901 2-58671922 9631\8jvTe VxooN.exe --Task MD5: EFD7D885536EF4FD62CBC513BBE04D6E) - 8jvTeVxooN.exe (PID: 2312 cmdline:
C:\Users\u ser\AppDat a\Local\b7 814b20-ebf f-4c00-901 2-58671922 9631\8jvTe VxooN.exe --Task MD5: EFD7D885536EF4FD62CBC513BBE04D6E)
- 8jvTeVxooN.exe (PID: 6428 cmdline:
"C:\Users\ user\AppDa ta\Local\b 7814b20-eb ff-4c00-90 12-5867192 29631\8jvT eVxooN.exe " --AutoSt art MD5: EFD7D885536EF4FD62CBC513BBE04D6E) - 8jvTeVxooN.exe (PID: 3228 cmdline:
"C:\Users\ user\AppDa ta\Local\b 7814b20-eb ff-4c00-90 12-5867192 29631\8jvT eVxooN.exe " --AutoSt art MD5: EFD7D885536EF4FD62CBC513BBE04D6E)
- 8jvTeVxooN.exe (PID: 6064 cmdline:
"C:\Users\ user\AppDa ta\Local\b 7814b20-eb ff-4c00-90 12-5867192 29631\8jvT eVxooN.exe " --AutoSt art MD5: EFD7D885536EF4FD62CBC513BBE04D6E) - 8jvTeVxooN.exe (PID: 3228 cmdline:
"C:\Users\ user\AppDa ta\Local\b 7814b20-eb ff-4c00-90 12-5867192 29631\8jvT eVxooN.exe " --AutoSt art MD5: EFD7D885536EF4FD62CBC513BBE04D6E)
- 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 |
{"C2 url": ["https://steamcommunity.com/profiles/76561199673019888"]}
{"Download URLs": ["http://sdfjhuz.com/dl/build2.exe", "http://cajgtus.com/files/1/build3.exe"], "C2 url": "http://cajgtus.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\nDo not ask assistants from youtube and recovery data sites for help in recovering your data.\r\nThey can use your free decryption quota and scam you.\r\nOur contact is emails in this text document only.\r\nYou can get and look video overview decrypt tool:\r\nhttps://wetransfer.com/downloads/54cdfd152fe98eedb628a1f4ddb7076420240421150208/403a27\r\nPrice of private key and decrypt software is $999.\r\nDiscount 50% available if you contact us first 72 hours, that's price for you is $499.\r\nPlease note that you'll never restore your data without payment.\r\nCheck your e-mail \"Spam\" or \"Junk\" folder if you don't get answer more than 6 hours.\r\n\r\n\r\nTo get this software you need write on our e-mail:\r\nsupport@freshingmail.top\r\n\r\nReserve e-mail address to contact us:\r\ndatarestorehelpyou@airmail.cc\r\n\r\nYour personal ID:\r\n0863PsawqS", "Ignore Files": ["ntuser.dat", "ntuser.dat.LOG1", "ntuser.dat.LOG2", "ntuser.pol", ".sys", ".ini", ".DLL", ".dll", ".blf", ".bat", ".lnk", ".regtrans-ms", "C:\\SystemID\\", "C:\\Users\\Default User\\", "C:\\Users\\Public\\", "C:\\Users\\All Users\\", "C:\\Users\\Default\\", "C:\\Documents and Settings\\", "C:\\ProgramData\\", "C:\\Recovery\\", "C:\\System Volume Information\\", "C:\\Users\\%username%\\AppData\\Roaming\\", "C:\\Users\\%username%\\AppData\\Local\\", "C:\\Windows\\", "C:\\PerfLogs\\", "C:\\ProgramData\\Microsoft\\", "C:\\ProgramData\\Package Cache\\", "C:\\Users\\Public\\", "C:\\$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-----\\\\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAw0Ftq9GtunuzQZHGiqoG\\\\n8S4cMO\\/Bdgsd+jTtFbVs1bX4OXiYKnMXg4LclKMEHJ2gnP2X09BkzA29UJQlagak\\\\nuAL7j7iRagKeU4tAB8w9rziBYoa9zROqer7J6pf5B11vAvvRq4b3127kAxnMhpgo\\\\ns7MQC7pXIvTkEeGySeG+F5fjSMPUoF1\\/cAg6GuSWOPXoPvXKRA\\/mo+xyHVOKZe2+\\\\nSCpbMHAyMe7o4w\\/i\\/pVjv9g8pRDJtz14qtMuAR38ek+SPJ4PJCxA9e0tOi+p4yNn\\\\nvnFKoL5OwzoF+bvVHnTA7tk4fXB3AyaL9llS0kxEWS7x\\/kNYQyJPh9fimryM03Cy\\\\n1wIDAQAB\\\\n-----END PUBLIC KEY-----"}
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_Djvu | Yara detected Djvu Ransomware | Joe Security | ||
Windows_Ransomware_Stop_1e8d48ff | unknown | unknown |
| |
JoeSecurity_Djvu | Yara detected Djvu Ransomware | Joe Security | ||
Windows_Ransomware_Stop_1e8d48ff | unknown | unknown |
| |
Windows_Trojan_RedLineStealer_ed346e4c | unknown | unknown |
| |
Click to see the 57 entries |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_Vidar_1 | Yara detected Vidar stealer | Joe Security | ||
HiddenCobra_BANKSHOT_Gen | Detects Hidden Cobra BANKSHOT trojan | Florian Roth |
| |
JoeSecurity_Vidar_1 | Yara detected Vidar stealer | Joe Security | ||
JoeSecurity_Vidar_1 | Yara detected Vidar stealer | Joe Security | ||
JoeSecurity_Djvu | Yara detected Djvu Ransomware | Joe Security | ||
Click to see the 60 entries |
System Summary |
---|
Source: | Author: Victor Sergeev, Daniil Yugoslavskiy, Gleb Sukhodolskiy, Timur Zinniatullin, oscd.community, Tim Shelton, frack113 (split): |
Timestamp: | 04/24/24-07:37:05.598520 |
SID: | 2020826 |
Source Port: | 49736 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 04/24/24-07:37:03.288894 |
SID: | 2020826 |
Source Port: | 49733 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 04/24/24-07:37:04.781081 |
SID: | 2833438 |
Source Port: | 49734 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 04/24/24-07:37:22.270266 |
SID: | 2833438 |
Source Port: | 49760 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 04/24/24-07:37:05.598520 |
SID: | 2036333 |
Source Port: | 49736 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 04/24/24-07:37:16.429429 |
SID: | 2833438 |
Source Port: | 49749 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 04/24/24-07:37:10.597638 |
SID: | 2833438 |
Source Port: | 49742 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 04/24/24-07:37:03.288894 |
SID: | 2036333 |
Source Port: | 49733 |
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: | Avira URL Cloud: | ||
Source: | Avira URL Cloud: | ||
Source: | Avira URL Cloud: |
Source: | Avira: | ||
Source: | Avira: | ||
Source: | Avira: |
Source: | Malware Configuration Extractor: |