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Windows Analysis Report
file.exe

Overview

General Information

Sample Name:file.exe
Analysis ID:736968
MD5:4bb5c0ed18f4b7ae33ba272eae17abf2
SHA1:e0e02b31d3ad2e965d223ebe3451bd9c9e0385fa
SHA256:418d9b6e1fc560a80fd9f37e34bee51e79a371cfcc24eede84928b506cd918b6
Tags:exe
Infos:

Detection

CryptOne, Djvu, RedLine, SmokeLoader, Vidar
Score:100
Range:0 - 100
Whitelisted:false
Confidence:100%

Signatures

Yara detected RedLine Stealer
Detected unpacking (overwrites its own PE header)
Yara detected CryptOne packer
Yara detected SmokeLoader
System process connects to network (likely due to code injection or exploit)
Detected unpacking (changes PE section rights)
Antivirus detection for URL or domain
Snort IDS alert for network traffic
Multi AV Scanner detection for submitted file
Benign windows process drops PE files
Malicious sample detected (through community Yara rule)
Yara detected Djvu Ransomware
Yara detected Vidar stealer
Multi AV Scanner detection for dropped file
Tries to steal Mail credentials (via file / registry access)
Maps a DLL or memory area into another process
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Machine Learning detection for sample
Injects a PE file into a foreign processes
Deletes itself after installation
Creates a thread in another existing process (thread injection)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Found many strings related to Crypto-Wallets (likely being stolen)
Checks if the current machine is a virtual machine (disk enumeration)
Tries to harvest and steal browser information (history, passwords, etc)
Writes to foreign memory regions
Tries to steal Crypto Currency Wallets
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation))
Injects code into the Windows Explorer (explorer.exe)
Machine Learning detection for dropped file
C2 URLs / IPs found in malware configuration
Antivirus or Machine Learning detection for unpacked file
Drops PE files to the application program directory (C:\ProgramData)
One or more processes crash
Contains functionality to query locales information (e.g. system language)
May sleep (evasive loops) to hinder dynamic analysis
Uses code obfuscation techniques (call, push, ret)
Detected potential crypto function
Sample execution stops while process was sleeping (likely an evasion)
Contains functionality to check the parent process ID (often done to detect debuggers and analysis systems)
Found evasive API chain (may stop execution after checking a module file name)
Contains functionality to dynamically determine API calls
HTTP GET or POST without a user agent
Downloads executable code via HTTP
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Drops files with a non-matching file extension (content does not match file extension)
Drops PE files
Tries to load missing DLLs
Contains functionality to read the PEB
Uses a known web browser user agent for HTTP communication
Checks if the current process is being debugged
Registers a DLL
PE file contains more sections than normal
Found large amount of non-executed APIs
Creates a process in suspended mode (likely to inject code)
Uses 32bit PE files
Queries the volume information (name, serial number etc) of a device
Yara signature match
Contains functionality to check if a debugger is running (IsDebuggerPresent)
PE file contains sections with non-standard names
Found potential string decryption / allocating functions
Yara detected Credential Stealer
Contains functionality to call native functions
Contains functionality which may be used to detect a debugger (GetProcessHeap)
PE file contains executable resources (Code or Archives)
Creates a DirectInput object (often for capturing keystrokes)
Is looking for software installed on the system
Queries information about the installed CPU (vendor, model number etc)
Monitors certain registry keys / values for changes (often done to protect autostart functionality)

Classification

  • System is w10x64
  • file.exe (PID: 5540 cmdline: C:\Users\user\Desktop\file.exe MD5: 4BB5C0ED18F4B7AE33BA272EAE17ABF2)
    • explorer.exe (PID: 3452 cmdline: C:\Windows\Explorer.EXE MD5: AD5296B280E8F522A8A897C96BAB0E1D)
      • 37F1.exe (PID: 1760 cmdline: C:\Users\user\AppData\Local\Temp\37F1.exe MD5: 20FC27E56AEB4D8031E8952F5C367565)
      • 405E.exe (PID: 3244 cmdline: C:\Users\user\AppData\Local\Temp\405E.exe MD5: ABC4A016ED52C530C02FCFA8D5AC2506)
      • 45DE.exe (PID: 5516 cmdline: C:\Users\user\AppData\Local\Temp\45DE.exe MD5: C5634D306EEA15EE3D6364A09276C1DD)
        • WerFault.exe (PID: 5348 cmdline: C:\Windows\SysWOW64\WerFault.exe -u -p 5516 -s 520 MD5: 9E2B8ACAD48ECCA55C0230D63623661B)
      • 49F6.exe (PID: 1324 cmdline: C:\Users\user\AppData\Local\Temp\49F6.exe MD5: 173E29DB800C6C004EAF258921B9C73B)
        • WerFault.exe (PID: 4600 cmdline: C:\Windows\SysWOW64\WerFault.exe -u -p 1324 -s 520 MD5: 9E2B8ACAD48ECCA55C0230D63623661B)
      • regsvr32.exe (PID: 1276 cmdline: regsvr32 /s C:\Users\user\AppData\Local\Temp\509E.dll MD5: D78B75FC68247E8A63ACBA846182740E)
        • regsvr32.exe (PID: 1332 cmdline: /s C:\Users\user\AppData\Local\Temp\509E.dll MD5: 426E7499F6A7346F0410DEAD0805586B)
      • 5487.exe (PID: 1272 cmdline: C:\Users\user\AppData\Local\Temp\5487.exe MD5: ADF28F31EED0074753479AC51AF789C9)
        • cmd.exe (PID: 5960 cmdline: "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\user\AppData\Local\Temp\5487.exe" & exit MD5: F3BDBE3BB6F734E357235F4D5898582D)
          • conhost.exe (PID: 5936 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
          • timeout.exe (PID: 3432 cmdline: timeout /t 6 MD5: 121A4EDAE60A7AF6F5DFA82F7BB95659)
      • 5999.exe (PID: 1244 cmdline: C:\Users\user\AppData\Local\Temp\5999.exe MD5: 4128ACBEDEE976974A7F0C08272C33BC)
        • 5999.exe (PID: 4888 cmdline: C:\Users\user\AppData\Local\Temp\5999.exe MD5: 4128ACBEDEE976974A7F0C08272C33BC)
      • explorer.exe (PID: 5220 cmdline: C:\Windows\SysWOW64\explorer.exe MD5: 166AB1B9462E5C1D6D18EC5EC0B6A5F7)
      • explorer.exe (PID: 3572 cmdline: C:\Windows\explorer.exe MD5: AD5296B280E8F522A8A897C96BAB0E1D)
  • uucbfdt (PID: 5820 cmdline: C:\Users\user\AppData\Roaming\uucbfdt MD5: 4BB5C0ED18F4B7AE33BA272EAE17ABF2)
  • gecbfdt (PID: 1100 cmdline: C:\Users\user\AppData\Roaming\gecbfdt MD5: ABC4A016ED52C530C02FCFA8D5AC2506)
    • WerFault.exe (PID: 5544 cmdline: C:\Windows\SysWOW64\WerFault.exe -u -p 1100 -s 520 MD5: 9E2B8ACAD48ECCA55C0230D63623661B)
  • cleanup
{"Download URLs": ["http://uaery.top/dl/build2.exe", "http://fresherlights.com/files/1/build3.exe"], "C2 url": "http://fresherlights.com/lancer/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-dyi5UcwIT9\r\nPrice of private key and decrypt software is $980.\r\nDiscount 50% available if you contact us first 72 hours, that's price for you is $490.\r\nPlease note that you'll never restore your data without payment.\r\nCheck your e-mail \"Spam\" or \"Junk\" folder if you don't get answer more than 6 hours.\r\n\r\n\r\nTo get this software you need write on our e-mail:\r\nsupport@fishmail.top\r\n\r\nReserve e-mail address to contact us:\r\ndatarestorehelp@airmail.cc\r\n\r\nYour personal ID:\r\n0597Jhyjd", "Ignore Files": ["ntuser.dat", "ntuser.dat.LOG1", "ntuser.dat.LOG2", "ntuser.pol", ".sys", ".ini", ".DLL", ".dll", ".blf", ".bat", ".lnk", ".regtrans-ms", "C:\\SystemID\\", "C:\\Users\\Default User\\", "C:\\Users\\Public\\", "C:\\Users\\All Users\\", "C:\\Users\\Default\\", "C:\\Documents and Settings\\", "C:\\ProgramData\\", "C:\\Recovery\\", "C:\\System Volume Information\\", "C:\\Users\\%username%\\AppData\\Roaming\\", "C:\\Users\\%username%\\AppData\\Local\\", "C:\\Windows\\", "C:\\PerfLogs\\", "C:\\ProgramData\\Microsoft\\", "C:\\ProgramData\\Package Cache\\", "C:\\Users\\Public\\", "C:\\$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-----\\\\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAl4vKVxPlvsnqzFmOtApr\\\\nPDoEZeIQxPLPwmXjNinTlraVIIr80Yx0cF+Uq24WBSBwVOmpVj\\/QxFE5d\\/JmMbH5\\\\nmZulvDo5gMb3LZo2TdKESrcW5rxaJhT43Ci3ZxI9xv3eHlVFDg++1kJVFlWQEqkK\\\\ndMgUflyDA8AUZPasbxao4WT6qaAQ3nhR0mmwSTaJ14dKHH5zFpIjzznofpoyVrv\\/\\\\n7YvHzq4vkGtylJaPNG9QGPnukRttjC1Xo\\/cT5UO7NMhpcYt14fjanIvb9Y0F6Ur0\\\\nMweM7exj7iPD70TSc5\\/itT9B+jKKTQH2+UbPKMo+cjuCgwu3E1Wvpx4cHoIIEzAA\\\\nmQIDAQAB\\\\n-----END PUBLIC KEY-----"}
{"C2 url": "78.153.144.3:2510", "Bot Id": "slovarik1btc", "Authorization Header": "69236173f96390de00bb5a5120a1f3a0"}
{"C2 list": ["http://hulimudulinu.net/", "http://stalnnuytyt.org/", "http://gulutina49org.org/", "http://furubujjul.net/", "http://starvestitibo.org/", "http://liubertiyyyul.net/", "http://bururutu44org.org/", "http://youyouumenia5.org/", "http://nvulukuluir.net/", "http://nuluitnulo.me/", "http://guluiiiimnstra.net/"]}
SourceRuleDescriptionAuthorStrings
0000001E.00000000.510855251.00000000008D8000.00000040.00000020.00020000.00000000.sdmpWindows_Trojan_RedLineStealer_ed346e4cunknownunknown
  • 0x4cba:$a: 55 8B EC 8B 45 14 56 57 8B 7D 08 33 F6 89 47 0C 39 75 10 76 15 8B
00000012.00000002.515243787.0000000002355000.00000004.00000020.00020000.00000000.sdmpJoeSecurity_CredentialStealerYara detected Credential StealerJoe Security
    00000000.00000002.356712809.0000000000710000.00000004.00000800.00020000.00000000.sdmpJoeSecurity_SmokeLoader_2Yara detected SmokeLoaderJoe Security
      00000000.00000002.356712809.0000000000710000.00000004.00000800.00020000.00000000.sdmpWindows_Trojan_Smokeloader_4e31426eunknownunknown
      • 0x7d4:$a: 5B 81 EB 34 10 00 00 6A 30 58 64 8B 00 8B 40 0C 8B 40 1C 8B 40 08 89 85 C0
      0000001E.00000003.505978851.0000000000710000.00000004.00001000.00020000.00000000.sdmpJoeSecurity_SmokeLoader_2Yara detected SmokeLoaderJoe Security