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Windows Analysis Report
vur7t4SumQ

Overview

General Information

Sample Name:vur7t4SumQ (renamed file extension from none to dll)
Analysis ID:626495
MD5:b4f74ea581aba7c9e44b4a0053d20bfe
SHA1:eec25f21b828ae3aa2cb49dcd418855e98993ad7
SHA256:91808c38624d6b8a14a9d86ce4e7fa9815ae08b359748873507db505255c2efe
Tags:exetrojan
Infos:

Detection

Emotet
Score:76
Range:0 - 100
Whitelisted:false
Confidence:100%

Signatures

Yara detected Emotet
System process connects to network (likely due to code injection or exploit)
Antivirus detection for URL or domain
Query firmware table information (likely to detect VMs)
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\vur7t4SumQ.dll" MD5: 4E8A40CAD6CCC047914E3A7830A2D8AA)
    • cmd.exe (PID: 6348 cmdline: cmd.exe /C rundll32.exe "C:\Users\user\Desktop\vur7t4SumQ.dll",#1 MD5: 4E2ACF4F8A396486AB4268C94A6A245F)
      • rundll32.exe (PID: 6368 cmdline: rundll32.exe "C:\Users\user\Desktop\vur7t4SumQ.dll",#1 MD5: 73C519F050C20580F8A62C849D49215A)
    • regsvr32.exe (PID: 6356 cmdline: regsvr32.exe /s C:\Users\user\Desktop\vur7t4SumQ.dll MD5: D78B75FC68247E8A63ACBA846182740E)
      • regsvr32.exe (PID: 6512 cmdline: C:\Windows\system32\regsvr32.exe "C:\Windows\system32\JZAnomWmMqlc\LxifZH.dll" MD5: D78B75FC68247E8A63ACBA846182740E)
    • rundll32.exe (PID: 6376 cmdline: rundll32.exe C:\Users\user\Desktop\vur7t4SumQ.dll,DllRegisterServer MD5: 73C519F050C20580F8A62C849D49215A)
    • rundll32.exe (PID: 6444 cmdline: rundll32.exe C:\Users\user\Desktop\vur7t4SumQ.dll,DllUnregisterServer MD5: 73C519F050C20580F8A62C849D49215A)
      • WerFault.exe (PID: 6652 cmdline: C:\Windows\system32\WerFault.exe -u -p 6444 -s 316 MD5: 2AFFE478D86272288BBEF5A00BBEF6A0)
  • svchost.exe (PID: 6424 cmdline: C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s NcbService MD5: 32569E403279B3FD2EDB7EBD036273FA)
  • svchost.exe (PID: 6536 cmdline: c:\windows\system32\svchost.exe -k localservice -p -s CDPSvc MD5: 32569E403279B3FD2EDB7EBD036273FA)
  • svchost.exe (PID: 6632 cmdline: c:\windows\system32\svchost.exe -k networkservice -p -s DoSvc MD5: 32569E403279B3FD2EDB7EBD036273FA)
  • svchost.exe (PID: 6696 cmdline: C:\Windows\System32\svchost.exe -k NetworkService -p MD5: 32569E403279B3FD2EDB7EBD036273FA)
  • SgrmBroker.exe (PID: 6908 cmdline: C:\Windows\system32\SgrmBroker.exe MD5: D3170A3F3A9626597EEE1888686E3EA6)
  • svchost.exe (PID: 6960 cmdline: C:\Windows\System32\svchost.exe -k netsvcs -p -s BITS MD5: 32569E403279B3FD2EDB7EBD036273FA)
  • svchost.exe (PID: 6988 cmdline: c:\windows\system32\svchost.exe -k localservicenetworkrestricted -p -s wscsvc MD5: 32569E403279B3FD2EDB7EBD036273FA)
    • MpCmdRun.exe (PID: 6856 cmdline: "C:\Program Files\Windows Defender\mpcmdrun.exe" -wdenable MD5: A267555174BFA53844371226F482B86B)
      • conhost.exe (PID: 6956 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
  • svchost.exe (PID: 6328 cmdline: C:\Windows\System32\svchost.exe -k netsvcs -p MD5: 32569E403279B3FD2EDB7EBD036273FA)
  • svchost.exe (PID: 5608 cmdline: C:\Windows\system32\svchost.exe -k wusvcs -p -s WaaSMedicSvc MD5: 32569E403279B3FD2EDB7EBD036273FA)
  • svchost.exe (PID: 5324 cmdline: C:\Windows\System32\svchost.exe -k netsvcs -p MD5: 32569E403279B3FD2EDB7EBD036273FA)
  • svchost.exe (PID: 6056 cmdline: C:\Windows\System32\svchost.exe -k netsvcs -p MD5: 32569E403279B3FD2EDB7EBD036273FA)
  • svchost.exe (PID: 6568 cmdline: C:\Windows\System32\svchost.exe -k netsvcs -p MD5: 32569E403279B3FD2EDB7EBD036273FA)
  • cleanup
No configs have been found
SourceRuleDescriptionAuthorStrings
00000006.00000000.304486161.0000000180001000.00000020.00001000.00020000.00000000.sdmpJoeSecurity_Emotet_1Yara detected EmotetJoe Security
    00000002.00000002.301657565.0000000180001000.00000020.00001000.00020000.00000000.sdmpJoeSecurity_Emotet_1Yara detected EmotetJoe Security
      00000002.00000002.301080454.0000000000C20000.00000040.00001000.00020000.00000000.sdmpJoeSecurity_Emotet_1Yara detected EmotetJoe Security
        00000006.00000000.305654507.0000000180001000.00000020.00001000.00020000.00000000.sdmpJoeSecurity_Emotet_1Yara detected EmotetJoe Security
          00000006.00000002.330907798.0000000180001000.00000020.00001000.00020000.00000000.sdmpJoeSecurity_Emotet_1Yara detected EmotetJoe Security
            Click to see the 9 entries