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Windows Analysis Report
file.exe

Overview

General Information

Sample Name:file.exe
Analysis ID:764042
MD5:95c94ebd6b69847c3fa598163f499c78
SHA1:b3f2b849bb2f9ddbd3551e60973c3fe8f228516e
SHA256:51d878f00166f0fa41b1d26d3f1f386aae3697fd35bf1a798aecb442eca437c5
Tags:exe
Infos:

Detection

Amadey
Score:100
Range:0 - 100
Whitelisted:false
Confidence:100%

Signatures

Yara detected Amadeys stealer DLL
Malicious sample detected (through community Yara rule)
Detected unpacking (overwrites its own PE header)
Yara detected Amadey bot
System process connects to network (likely due to code injection or exploit)
Detected unpacking (changes PE section rights)
Antivirus detection for URL or domain
Antivirus detection for dropped file
Multi AV Scanner detection for dropped file
Tries to steal Mail credentials (via file / registry access)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to harvest and steal ftp login credentials
Machine Learning detection for sample
Contains functionality to inject code into remote processes
Creates an undocumented autostart registry key
Machine Learning detection for dropped file
C2 URLs / IPs found in malware configuration
Uses schtasks.exe or at.exe to add and modify task schedules
Tries to steal Instant Messenger accounts or passwords
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)
May sleep (evasive loops) to hinder dynamic analysis
Uses code obfuscation techniques (call, push, ret)
PE file contains sections with non-standard names
Internet Provider seen in connection with other malware
Detected potential crypto function
Contains functionality to query CPU information (cpuid)
Found potential string decryption / allocating functions
Sample execution stops while process was sleeping (likely an evasion)
Found dropped PE file which has not been started or loaded
Contains functionality to record screenshots
Contains functionality which may be used to detect a debugger (GetProcessHeap)
IP address seen in connection with other malware
Contains long sleeps (>= 3 min)
Abnormal high CPU Usage
Creates a DirectInput object (often for capturing keystrokes)
Drops PE files
Contains functionality to read the PEB
Uses cacls to modify the permissions of files
Contains functionality to launch a program with higher privileges
Dropped file seen in connection with other malware
Found large amount of non-executed APIs
Creates a process in suspended mode (likely to inject code)

Classification

  • System is w10x64
  • file.exe (PID: 160 cmdline: C:\Users\user\Desktop\file.exe MD5: 95C94EBD6B69847C3FA598163F499C78)
    • gntuud.exe (PID: 5144 cmdline: "C:\Users\user\AppData\Local\Temp\9c69749b54\gntuud.exe" MD5: 95C94EBD6B69847C3FA598163F499C78)
      • schtasks.exe (PID: 1516 cmdline: "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN gntuud.exe /TR "C:\Users\user\AppData\Local\Temp\9c69749b54\gntuud.exe" /F MD5: 15FF7D8324231381BAD48A052F85DF04)
        • conhost.exe (PID: 5488 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
      • cmd.exe (PID: 2764 cmdline: "C:\Windows\System32\cmd.exe" /k echo Y|CACLS "gntuud.exe" /P "user:N"&&CACLS "gntuud.exe" /P "user:R" /E&&echo Y|CACLS "..\9c69749b54" /P "user:N"&&CACLS "..\9c69749b54" /P "user:R" /E&&Exit MD5: F3BDBE3BB6F734E357235F4D5898582D)
        • conhost.exe (PID: 3772 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
        • cmd.exe (PID: 5916 cmdline: C:\Windows\system32\cmd.exe /S /D /c" echo Y" MD5: F3BDBE3BB6F734E357235F4D5898582D)
        • cacls.exe (PID: 4572 cmdline: CACLS "gntuud.exe" /P "user:N" MD5: 4CBB1C027DF71C53A8EE4C855FD35B25)
        • cacls.exe (PID: 5944 cmdline: CACLS "gntuud.exe" /P "user:R" /E MD5: 4CBB1C027DF71C53A8EE4C855FD35B25)
        • cmd.exe (PID: 3712 cmdline: C:\Windows\system32\cmd.exe /S /D /c" echo Y" MD5: F3BDBE3BB6F734E357235F4D5898582D)
        • cacls.exe (PID: 260 cmdline: CACLS "..\9c69749b54" /P "user:N" MD5: 4CBB1C027DF71C53A8EE4C855FD35B25)
        • cacls.exe (PID: 5632 cmdline: CACLS "..\9c69749b54" /P "user:R" /E MD5: 4CBB1C027DF71C53A8EE4C855FD35B25)
      • rundll32.exe (PID: 4240 cmdline: "C:\Windows\System32\rundll32.exe" C:\Users\user\AppData\Roaming\85f469ce401df1\cred64.dll, Main MD5: D7CA562B0DB4F4DD0F03A89A1FDAD63D)
  • gntuud.exe (PID: 2832 cmdline: C:\Users\user\AppData\Local\Temp\9c69749b54\gntuud.exe MD5: 95C94EBD6B69847C3FA598163F499C78)
  • cleanup
{"C2 url": "31.41.244.237/jg94cVd30f/index.php", "Version": "3.50"}
SourceRuleDescriptionAuthorStrings
C:\Users\user\AppData\Roaming\85f469ce401df1\cred64.dllJoeSecurity_Amadey_2Yara detected Amadey\'s stealer DLLJoe Security
    C:\Users\user\AppData\Roaming\85f469ce401df1\cred64.dllINDICATOR_TOOL_PWS_AmadyDetects password stealer DLL. Dropped by AmadeyditekSHen
    • 0xd86c:$s1: Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders\AppData
    • 0x15608:$s1: Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders\AppData
    • 0x16078:$s1: Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders\AppData
    • 0x1515c:$s2: Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook
    • 0x151c0:$s2: Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook
    • 0xdd10:$s3: \Mikrotik\Winbox\Addresses.cdb
    • 0x190dc:$s4: \HostName
    • 0x19104:$s5: \Password
    • 0x17c08:$s6: SOFTWARE\RealVNC\
    • 0x17c34:$s6: SOFTWARE\RealVNC\
    • 0x17c60:$s6: SOFTWARE\RealVNC\
    • 0x17ca8:$s6: SOFTWARE\RealVNC\
    • 0x17cd4:$s6: SOFTWARE\RealVNC\
    • 0x1800c:$s7: SOFTWARE\TightVNC\
    • 0x18038:$s7: SOFTWARE\TightVNC\
    • 0x18064:$s7: SOFTWARE\TightVNC\
    • 0x180b0:$s7: SOFTWARE\TightVNC\
    • 0x1c43c:$s8: cred.dll
    C:\Users\user\AppData\Local\Microsoft\Windows\INetCache\IE\B87Z87FM\cred64[1].dllJoeSecurity_Amadey_2Yara detected Amadey\'s stealer DLLJoe Security
      C:\Users\user\AppData\Local\Microsoft\Windows\INetCache\IE\B87Z87FM\cred64[1].dllINDICATOR_TOOL_PWS_AmadyDetects password stealer DLL. Dropped by AmadeyditekSHen
      • 0xd86c:$s1: Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders\AppData
      • 0x15608:$s1: Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders\AppData
      • 0x16078:$s1: Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders\AppData
      • 0x1515c:$s2: Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook
      • 0x151c0:$s2: Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook
      • 0xdd10:$s3: \Mikrotik\Winbox\Addresses.cdb
      • 0x190dc:$s4: \HostName
      • 0x19104:$s5: \Password
      • 0x17c08:$s6: SOFTWARE\RealVNC\
      • 0x17c34:$s6: SOFTWARE\RealVNC\
      • 0x17c60:$s6: SOFTWARE\RealVNC\
      • 0x17ca8:$s6: SOFTWARE\RealVNC\
      • 0x17cd4:$s6: SOFTWARE\RealVNC\
      • 0x1800c:$s7: SOFTWARE\TightVNC\
      • 0x18038:$s7: SOFTWARE\TightVNC\
      • 0x18064:$s7: SOFTWARE\TightVNC\
      • 0x180b0:$s7: SOFTWARE\TightVNC\
      • 0x1c43c:$s8: cred.dll
      SourceRuleDescriptionAuthorStrings
      00000007.00000002.379221894.0000000000400000.00000040.00000001.01000000.00000004.sdmpJoeSecurity_Amadey_2Yara detected Amadey\'s stealer DLLJoe Security
        00000007.00000002.379447537.00000000006C5000.00000040.00000020.00020000.00000000.sdmpWindows_Trojan_RedLineStealer_ed346e4cunknownunknown
        • 0x1358:$a: 55 8B EC 8B 45 14 56 57 8B 7D 08 33 F6 89 47 0C 39 75 10 76 15 8B
        00000001.00000003.364509891.000000000072F000.00000004.00000020.00020000.00000000.sdmpJoeSecurity_AmadeyYara detected Amadey botJoe Security
          00000001.00000003.388349962.000000000072F000.00000004.00000020.00020000.00000000.sdmpJoeSecurity_AmadeyYara detected Amadey botJoe Security
            00000000.00000003.307521175.0000000000920000.00000004.00001000.00020000.00000000.sdmpJoeSecurity_Amadey_2Yara detected Amadey\'s stealer DLLJoe Security
              Click to see the 10 entries
              SourceRuleDescriptionAuthorStrings
              7.3.gntuud.exe.b00000.0.raw.unpackJoeSecurity_Amadey_2Yara detected Amadey\'s stealer DLLJoe Security
                7.3.gntuud.exe.b00000.0.unpackJoeSecurity_Amadey_2Yara detected Amadey\'s stealer DLLJoe Security
                  7.2.gntuud.exe.400000.0.unpackJoeSecurity_Amadey_2Yara detected Amadey\'s stealer DLLJoe Security
                    0.2.file.exe.5e0e67.1.unpackJoeSecurity_Amadey_2Yara detected Amadey\'s stealer DLLJoe Security
                      0.2.file.exe.400000.0.unpackJoeSecurity_Amadey_2Yara detected Amadey\'s stealer DLLJoe Security
                        Click to see the 9 entries
                        No Sigma rule has matched
                        No Snort rule has matched

                        Click to jump to signature section

                        Show All Signature Results

                        AV Detection

                        barindex
                        Source: http://31.41.244.237/jg94cVd30f/index.phpWAvira URL Cloud: Label: malware
                        Source: http://31.41.244.237/jg94cVd30f/index.phpWindowsAvira URL Cloud: Label: malware
                        Source: http://31.41.244.237/jg94cVd30f/index.php9749b54Avira URL Cloud: Label: malware
                        Source: http://31.41.244.237/jg94cVd30f/index.php1df1Avira URL Cloud: Label: malware
                        Source: 31.41.244.237/jg94cVd30f/index.phpAvira URL Cloud: Label: malware
                        Source: http://31.41.244.237/jg94cVd30f/index.phpce401df1Avira URL Cloud: Label: malware
                        Source: http://31.41.244.237/jg94cVd30f/index.phpl4Avira URL Cloud: Label: malware
                        Source: http://31.41.244.237/jg94cVd30f/index.phpqAvira URL Cloud: Label: malware
                        Source: http://31.41.244.237/jg94cVd30f/index.phpcAvira URL Cloud: Label: malware
                        Source: http://31.41.244.237/jg94cVd30f/index.phpAvira URL Cloud: Label: malware
                        Source: http://31.41.244.237/jg94cVd30f/index.php?scr=1Avira URL Cloud: Label: malware
                        Source: C:\Users\user\AppData\Local\Microsoft\Windows\INetCache\IE\B87Z87FM\cred64[1].dllAvira: detection malicious, Label: HEUR/AGEN.1233121
                        Source: C:\Users\user\AppData\Roaming\85f469ce401df1\cred64.dllAvira: detection malicious, Label: HEUR/AGEN.1233121
                        Source: C:\Users\user\AppData\Local\Microsoft\Windows\INetCache\IE\B87Z87FM\cred64[1].dllReversingLabs: Detection: 88%
                        Source: C:\Users\user\AppData\Roaming\85f469ce401df1\cred64.dllReversingLabs: Detection: 88%
                        Source: file.exeJoe Sandbox ML: detected
                        Source: C:\Users\user\AppData\Local\Temp\9c69749b54\gntuud.exeJoe Sandbox ML: detected
                        Source: 0.3.file.exe.920000.0.unpackMalware Configuration Extractor: Amadey {"C2 url": "31.41.244.237/jg94cVd30f/index.php", "Version": "3.50"}

                        Compliance

                        barindex
                        Source: C:\Users\user\Desktop\file.exeUnpacked PE file: 0.2.file.exe.400000.0.unpack
                        Source: C:\Users\user\AppData\Local\Temp\9c69749b54\gntuud.exeUnpacked PE file: 7.2.gntuud.exe.400000.0.unpack
                        Source: file.exeStatic PE information: EXECUTABLE_IMAGE, 32BIT_MACHINE
                        Source: C:\Users\user\Desktop\file.exeFile opened: C:\Windows\SysWOW64\msvcr100.dllJump to behavior
                        Source: Binary string: D:\Mktmp\Amadey\Release\Amadey.pdb source: file.exe, file.exe, 00000000.00000003.307521175.0000000000920000.00000004.00001000.00020000.00000000.sdmp, file.exe, 00000000.00000002.310262751.0000000000400000.00000040.00000001.01000000.00000003.sdmp, gntuud.exe, gntuud.exe, 00000007.00000002.379221894.0000000000400000.00000040.00000001.01000000.00000004.sdmp, gntuud.exe, 00000007.00000003.378914980.0000000000B00000.00000004.00001000.00020000.00000000.sdmp, gntuud.exe, 00000007.00000002.379592093.0000000000900000.00000040.00001000.00020000.00000000.sdmp
                        Source: Binary string: C:\wivex-ribinese.pdb source: file.exe, gntuud.exe.0.dr
                        Source: Binary string: SC:\wivex-ribinese.pdb source: file.exe, gntuud.exe.0.dr
                        Source: C:\Users\user\Desktop\file.exeCode function: 0_2_00420C88 FindFirstFileExW,0_2_00420C88
                        Source: C:\Users\user\AppData\Local\Temp\9c69749b54\gntuud.exeCode function: 7_2_00420C88 FindFirstFileExW,7_2_00420C88
                        Source: C:\Users\user\AppData\Local\Temp\9c69749b54\gntuud.exeCode function: 7_2_00920EEF FindFirstFileExW,7_2_00920EEF

                        Networking