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Windows Analysis Report
TSvDnT6fkE

Overview

General Information

Sample Name:TSvDnT6fkE (renamed file extension from none to dll)
Analysis ID:626488
MD5:81fbd732b50a5593d32234e232d59ece
SHA1:4e0d8774739060edf16cb1956934840bc8e9a55a
SHA256:6aaf58cdff2d8c1a9f8ca6caaa1445d2574dcec8b25ef57c050ce3e688e06b5d
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
One or more processes crash
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
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: 6328 cmdline: loaddll64.exe "C:\Users\user\Desktop\TSvDnT6fkE.dll" MD5: 4E8A40CAD6CCC047914E3A7830A2D8AA)
    • cmd.exe (PID: 6336 cmdline: cmd.exe /C rundll32.exe "C:\Users\user\Desktop\TSvDnT6fkE.dll",#1 MD5: 4E2ACF4F8A396486AB4268C94A6A245F)
      • rundll32.exe (PID: 6356 cmdline: rundll32.exe "C:\Users\user\Desktop\TSvDnT6fkE.dll",#1 MD5: 73C519F050C20580F8A62C849D49215A)
    • regsvr32.exe (PID: 6344 cmdline: regsvr32.exe /s C:\Users\user\Desktop\TSvDnT6fkE.dll MD5: D78B75FC68247E8A63ACBA846182740E)
      • regsvr32.exe (PID: 6484 cmdline: C:\Windows\system32\regsvr32.exe "C:\Windows\system32\ErRMcfUGTVTj\myfGzaHssmULBwf.dll" MD5: D78B75FC68247E8A63ACBA846182740E)
    • rundll32.exe (PID: 6364 cmdline: rundll32.exe C:\Users\user\Desktop\TSvDnT6fkE.dll,DllRegisterServer MD5: 73C519F050C20580F8A62C849D49215A)
    • rundll32.exe (PID: 6416 cmdline: rundll32.exe C:\Users\user\Desktop\TSvDnT6fkE.dll,DllUnregisterServer MD5: 73C519F050C20580F8A62C849D49215A)
      • WerFault.exe (PID: 6536 cmdline: C:\Windows\system32\WerFault.exe -u -p 6416 -s 316 MD5: 2AFFE478D86272288BBEF5A00BBEF6A0)
  • svchost.exe (PID: 6572 cmdline: C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s NcbService MD5: 32569E403279B3FD2EDB7EBD036273FA)
  • svchost.exe (PID: 6608 cmdline: c:\windows\system32\svchost.exe -k localservice -p -s CDPSvc MD5: 32569E403279B3FD2EDB7EBD036273FA)
  • svchost.exe (PID: 6728 cmdline: c:\windows\system32\svchost.exe -k networkservice -p -s DoSvc MD5: 32569E403279B3FD2EDB7EBD036273FA)
  • svchost.exe (PID: 6848 cmdline: C:\Windows\System32\svchost.exe -k NetworkService -p MD5: 32569E403279B3FD2EDB7EBD036273FA)
  • SgrmBroker.exe (PID: 6896 cmdline: C:\Windows\system32\SgrmBroker.exe MD5: D3170A3F3A9626597EEE1888686E3EA6)
  • svchost.exe (PID: 6944 cmdline: c:\windows\system32\svchost.exe -k localservicenetworkrestricted -p -s wscsvc MD5: 32569E403279B3FD2EDB7EBD036273FA)
    • MpCmdRun.exe (PID: 4904 cmdline: "C:\Program Files\Windows Defender\mpcmdrun.exe" -wdenable MD5: A267555174BFA53844371226F482B86B)
      • conhost.exe (PID: 2612 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
  • svchost.exe (PID: 6032 cmdline: C:\Windows\System32\svchost.exe -k netsvcs -p -s BITS MD5: 32569E403279B3FD2EDB7EBD036273FA)
  • svchost.exe (PID: 5980 cmdline: C:\Windows\System32\svchost.exe -k netsvcs -p MD5: 32569E403279B3FD2EDB7EBD036273FA)
  • svchost.exe (PID: 6636 cmdline: C:\Windows\System32\svchost.exe -k netsvcs -p MD5: 32569E403279B3FD2EDB7EBD036273FA)
  • svchost.exe (PID: 908 cmdline: C:\Windows\System32\svchost.exe -k netsvcs -p MD5: 32569E403279B3FD2EDB7EBD036273FA)
  • svchost.exe (PID: 5356 cmdline: C:\Windows\System32\svchost.exe -k netsvcs -p MD5: 32569E403279B3FD2EDB7EBD036273FA)
  • cleanup
No configs have been found
SourceRuleDescriptionAuthorStrings
00000004.00000002.282340341.0000000180001000.00000020.00001000.00020000.00000000.sdmpJoeSecurity_Emotet_1Yara detected EmotetJoe Security
    00000006.00000002.790902052.0000000002560000.00000040.00001000.00020000.00000000.sdmpJoeSecurity_Emotet_1Yara detected EmotetJoe Security
      00000005.00000002.306506166.0000000180001000.00000020.00001000.00020000.00000000.sdmpJoeSecurity_Emotet_1Yara detected EmotetJoe Security
        00000005.00000002.306832170.00000164C9870000.00000040.00001000.00020000.00000000.sdmpJoeSecurity_Emotet_1Yara detected EmotetJoe Security
          00000005.00000000.287051568.0000000180001000.00000020.00001000.00020000.00000000.sdmpJoeSecurity_Emotet_1Yara detected EmotetJoe Security
            Click to see the 9 entries
            SourceRuleDescriptionAuthorStrings
            3.2.rundll32.exe.18475ef0000.1.raw.unpackJoeSecurity_Emotet_1Yara detected EmotetJoe Security
              6.2.regsvr32.exe.2560000.1.raw.unpackJoeSecurity_Emotet_1Yara detected EmotetJoe Security
                2.2.regsvr32.exe.1e20000.0.raw.unpackJoeSecurity_Emotet_1Yara detected EmotetJoe Security
                  5.2.rundll32.exe.164c9870000.1.unpackJoeSecurity_Emotet_1Yara detected EmotetJoe Security
                    5.0.rundll32.exe.164c9870000.1.unpackJoeSecurity_Emotet_1Yara detected EmotetJoe 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: TSvDnT6fkE.dllVirustotal: Detection: 33%Perma Link
                      Source: https://23.239.0.12/ionTAvira URL Cloud: Label: malware
                      Source: https://23.239.0.12/$Avira URL Cloud: Label: malware