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Windows Analysis Report
S0Uj3iEhau.dll

Overview

General Information

Sample Name:S0Uj3iEhau.dll
Analysis ID:626507
MD5:bfc8c2c291a541379642dcf219f78be4
SHA1:0e2d22f72f957fda57c7d0c4498103ee52413127
SHA256:ecf2a07b01738c05497f5ff5aef2a93622ec7bfc353a66357bad30a5898c1e21
Tags:exetrojan
Infos:

Detection

Emotet
Score:80
Range:0 - 100
Whitelisted:false
Confidence:100%

Signatures

Multi AV Scanner detection for submitted file
Yara detected Emotet
System process connects to network (likely due to code injection or exploit)
Antivirus detection for URL or domain
Changes security center settings (notifications, updates, antivirus, firewall)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Queries the volume information (name, serial number etc) of a device
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Contains functionality to query locales information (e.g. system language)
Deletes files inside the Windows folder
May sleep (evasive loops) to hinder dynamic analysis
Checks if Antivirus/Antispyware/Firewall program is installed (via WMI)
Uses code obfuscation techniques (call, push, ret)
Creates files inside the system directory
Internet Provider seen in connection with other malware
Detected potential crypto function
Sample execution stops while process was sleeping (likely an evasion)
Found evasive API chain (may stop execution after checking a module file name)
JA3 SSL client fingerprint seen in connection with other malware
Contains functionality to dynamically determine API calls
HTTP GET or POST without a user agent
IP address seen in connection with other malware
AV process strings found (often used to terminate AV products)
PE file contains an invalid checksum
Tries to load missing DLLs
Drops PE files to the windows directory (C:\Windows)
Checks if the current process is being debugged
Registers a DLL
Monitors certain registry keys / values for changes (often done to protect autostart functionality)
Queries disk information (often used to detect virtual machines)
Creates a process in suspended mode (likely to inject code)

Classification

  • System is w10x64
  • loaddll64.exe (PID: 6276 cmdline: loaddll64.exe "C:\Users\user\Desktop\S0Uj3iEhau.dll" MD5: 4E8A40CAD6CCC047914E3A7830A2D8AA)
    • cmd.exe (PID: 6284 cmdline: cmd.exe /C rundll32.exe "C:\Users\user\Desktop\S0Uj3iEhau.dll",#1 MD5: 4E2ACF4F8A396486AB4268C94A6A245F)
      • rundll32.exe (PID: 6304 cmdline: rundll32.exe "C:\Users\user\Desktop\S0Uj3iEhau.dll",#1 MD5: 73C519F050C20580F8A62C849D49215A)
    • regsvr32.exe (PID: 6292 cmdline: regsvr32.exe /s C:\Users\user\Desktop\S0Uj3iEhau.dll MD5: D78B75FC68247E8A63ACBA846182740E)
      • regsvr32.exe (PID: 6416 cmdline: C:\Windows\system32\regsvr32.exe "C:\Windows\system32\VXqCbDaRw\xzHyqHbxqD.dll" MD5: D78B75FC68247E8A63ACBA846182740E)
    • rundll32.exe (PID: 6324 cmdline: rundll32.exe C:\Users\user\Desktop\S0Uj3iEhau.dll,DllRegisterServer MD5: 73C519F050C20580F8A62C849D49215A)
    • rundll32.exe (PID: 6424 cmdline: rundll32.exe C:\Users\user\Desktop\S0Uj3iEhau.dll,DllUnregisterServer MD5: 73C519F050C20580F8A62C849D49215A)
  • svchost.exe (PID: 6860 cmdline: C:\Windows\System32\svchost.exe -k netsvcs -p MD5: 32569E403279B3FD2EDB7EBD036273FA)
  • svchost.exe (PID: 6900 cmdline: C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s NcbService MD5: 32569E403279B3FD2EDB7EBD036273FA)
  • svchost.exe (PID: 6940 cmdline: c:\windows\system32\svchost.exe -k localservice -p -s CDPSvc MD5: 32569E403279B3FD2EDB7EBD036273FA)
  • svchost.exe (PID: 7008 cmdline: c:\windows\system32\svchost.exe -k networkservice -p -s DoSvc MD5: 32569E403279B3FD2EDB7EBD036273FA)
  • svchost.exe (PID: 7080 cmdline: C:\Windows\System32\svchost.exe -k NetworkService -p MD5: 32569E403279B3FD2EDB7EBD036273FA)
  • SgrmBroker.exe (PID: 7152 cmdline: C:\Windows\system32\SgrmBroker.exe MD5: D3170A3F3A9626597EEE1888686E3EA6)
  • svchost.exe (PID: 4496 cmdline: c:\windows\system32\svchost.exe -k localservicenetworkrestricted -p -s wscsvc MD5: 32569E403279B3FD2EDB7EBD036273FA)
    • MpCmdRun.exe (PID: 5924 cmdline: "C:\Program Files\Windows Defender\mpcmdrun.exe" -wdenable MD5: A267555174BFA53844371226F482B86B)
      • conhost.exe (PID: 5888 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
  • svchost.exe (PID: 2324 cmdline: c:\windows\system32\svchost.exe -k unistacksvcgroup MD5: 32569E403279B3FD2EDB7EBD036273FA)
  • svchost.exe (PID: 4220 cmdline: C:\Windows\System32\svchost.exe -k netsvcs -p MD5: 32569E403279B3FD2EDB7EBD036273FA)
  • svchost.exe (PID: 3856 cmdline: C:\Windows\System32\svchost.exe -k netsvcs -p -s BITS MD5: 32569E403279B3FD2EDB7EBD036273FA)
  • svchost.exe (PID: 5900 cmdline: C:\Windows\System32\svchost.exe -k netsvcs -p MD5: 32569E403279B3FD2EDB7EBD036273FA)
  • svchost.exe (PID: 6788 cmdline: C:\Windows\System32\svchost.exe -k netsvcs -p MD5: 32569E403279B3FD2EDB7EBD036273FA)
  • cleanup
No configs have been found
SourceRuleDescriptionAuthorStrings
00000002.00000002.245116750.0000000180001000.00000020.00001000.00020000.00000000.sdmpJoeSecurity_Emotet_1Yara detected EmotetJoe Security
    00000003.00000002.242723804.0000000180001000.00000020.00001000.00020000.00000000.sdmpJoeSecurity_Emotet_1Yara detected EmotetJoe Security
      00000004.00000002.242340810.0000000180001000.00000020.00001000.00020000.00000000.sdmpJoeSecurity_Emotet_1Yara detected EmotetJoe Security
        00000005.00000002.631796967.0000000180001000.00000020.00001000.00020000.00000000.sdmpJoeSecurity_Emotet_1Yara detected EmotetJoe Security
          00000002.00000002.244863789.00000000020F0000.00000040.00001000.00020000.00000000.sdmpJoeSecurity_Emotet_1Yara detected EmotetJoe Security
            Click to see the 3 entries
            SourceRuleDescriptionAuthorStrings
            4.2.rundll32.exe.115aee20000.1.raw.unpackJoeSecurity_Emotet_1Yara detected EmotetJoe Security
              4.2.rundll32.exe.115aee20000.1.unpackJoeSecurity_Emotet_1Yara detected EmotetJoe Security
                3.2.rundll32.exe.230416a0000.0.raw.unpackJoeSecurity_Emotet_1Yara detected EmotetJoe Security
                  2.2.regsvr32.exe.20f0000.0.unpackJoeSecurity_Emotet_1Yara detected EmotetJoe Security
                    2.2.regsvr32.exe.20f0000.0.raw.unpackJoeSecurity_Emotet_1Yara detected EmotetJoe Security
                      Click to see the 3 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: S0Uj3iEhau.dllVirustotal: Detection: 29%Perma Link
                      Source: https://23.239.0.12/rAvira URL Cloud: Label: malware
                      Source: https://23.239.0.12/sAvira URL Cloud: Label: malware
                      Source: https://23.239.0.12/7Avira URL Cloud: Label: malware
                      </