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Windows Analysis Report


General Information

Analysis ID:756110


Range:0 - 100


Multi AV Scanner detection for submitted file
Malicious sample detected (through community Yara rule)
Yara detected AgentTesla
Yara detected AntiVM3
Sigma detected: Scheduled temp file as task from temp location
Multi AV Scanner detection for dropped file
Tries to steal Mail credentials (via file / registry access)
Initial sample is a PE file and has a suspicious name
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to harvest and steal ftp login credentials
.NET source code references suspicious native API functions
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Machine Learning detection for sample
May check the online IP address of the machine
.NET source code contains potential unpacker
Injects a PE file into a foreign processes
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains very large array initializations
Machine Learning detection for dropped file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Uses schtasks.exe or at.exe to add and modify task schedules
Tries to harvest and steal browser information (history, passwords, etc)
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Uses 32bit PE files
Queries the volume information (name, serial number etc) of a device
Yara signature match
Antivirus or Machine Learning detection for unpacked file
May sleep (evasive loops) to hinder dynamic analysis
Uses code obfuscation techniques (call, push, ret)
Detected potential crypto function
Sample execution stops while process was sleeping (likely an evasion)
Yara detected Credential Stealer
JA3 SSL client fingerprint seen in connection with other malware
IP address seen in connection with other malware
Contains long sleeps (>= 3 min)
Enables debug privileges
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
Drops PE files
Uses a known web browser user agent for HTTP communication
Detected TCP or UDP traffic on non-standard ports
Uses SMTP (mail sending)
Queries sensitive processor information (via WMI, Win32_Processor, often done to detect virtual machines)
Monitors certain registry keys / values for changes (often done to protect autostart functionality)
Creates a process in suspended mode (likely to inject code)


  • System is w10x64
  • SHIPMENT DOCUMENTS.exe (PID: 3192 cmdline: C:\Users\user\Desktop\SHIPMENT DOCUMENTS.exe MD5: 12DC06D3034A17BE7A70A4AA45EDCE8D)
    • schtasks.exe (PID: 5900 cmdline: C:\Windows\System32\schtasks.exe" /Create /TN "Updates\cnWCiicEpxW" /XML "C:\Users\user\AppData\Local\Temp\tmp2A80.tmp MD5: 15FF7D8324231381BAD48A052F85DF04)
      • conhost.exe (PID: 1632 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
  • cnWCiicEpxW.exe (PID: 4444 cmdline: C:\Users\user\AppData\Roaming\cnWCiicEpxW.exe MD5: 12DC06D3034A17BE7A70A4AA45EDCE8D)
    • schtasks.exe (PID: 5740 cmdline: C:\Windows\System32\schtasks.exe" /Create /TN "Updates\cnWCiicEpxW" /XML "C:\Users\user\AppData\Local\Temp\tmpC7C9.tmp MD5: 15FF7D8324231381BAD48A052F85DF04)
      • conhost.exe (PID: 4512 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
    • cnWCiicEpxW.exe (PID: 3132 cmdline: {path} MD5: 12DC06D3034A17BE7A70A4AA45EDCE8D)
  • cleanup
{"Exfil Mode": "SMTP", "Host": "mail.southernboilers.org", "Username": "info@southernboilers.org", "Password": "Sksmoke2018#"}
00000014.00000000.301553016.0000000000402000.00000040.00000400.00020000.00000000.sdmpJoeSecurity_AgentTesla_1Yara detected AgentTeslaJoe Security
    00000014.00000000.301553016.0000000000402000.00000040.00000400.00020000.00000000.sdmpJoeSecurity_AgentTesla_2Yara detected AgentTeslaJoe Security
      • 0x31ccf:$a13: get_DnsResolver
      • 0x303d4:$a20: get_LastAccessed
      • 0x326dc:$a27: set_InternalServerPort
      • 0x32a11:$a30: set_GuidMasterKey
      • 0x304e6:$a33: get_Clipboard
      • 0x304f4:$a34: get_Keyboard
      • 0x318ba:$a35: get_ShiftKeyDown
      • 0x318cb:$a36: get_AltKeyDown
      • 0x30501:$a37: get_Password
      • 0x31015:$a38: get_PasswordHash
      • 0x32110:$a39: get_DefaultCredentials
      0000001B.00000002.528419495.0000000003164000.00000004.00000800.00020000.00000000.sdmpJoeSecurity_CredentialStealerYara detected Credential StealerJoe Security
        0000001B.00000002.525674867.0000000003111000.00000004.00000800.00020000.00000000.sdmpJoeSecurity_CredentialStealerYara detected Credential StealerJoe Security
          Click to see the 16 entries
          20.0.SHIPMENT DOCUMENTS.exe.400000.0.unpackJoeSecurity_AgentTesla_1Yara detected AgentTeslaJoe Security
            20.0.SHIPMENT DOCUMENTS.exe.400000.0.unpackJoeSecurity_AgentTesla_2Yara detected AgentTeslaJoe Security
              20.0.SHIPMENT DOCUMENTS.exe.400000.0.unpackMALWARE_Win_AgentTeslaV3AgentTeslaV3 infostealer payloadditekSHen
              • 0x349c0:$s10: logins
              • 0x34440:$s11: credential
              • 0x306e6:$g1: get_Clipboard
              • 0x306f4:$g2: get_Keyboard
              • 0x30701:$g3: get_Password
              • 0x31aaa:$g4: get_CtrlKeyDown
              • 0x31aba:$g5: get_ShiftKeyDown
              • 0x31acb:$g6: get_AltKeyDown
              20.0.SHIPMENT DOCUMENTS.exe.400000.0.unpackWindows_Trojan_AgentTesla_d3ac2b2funknownunknown
              • 0x31ecf:$a13: get_DnsResolver
              • 0x305d4:$a20: get_LastAccessed
              • 0x328dc:$a27: set_InternalServerPort
              • 0x32c11:$a30: set_GuidMasterKey
              • 0x306e6:$a33: get_Clipboard
              • 0x306f4:$a34: get_Keyboard
              • 0x31aba:$a35: get_ShiftKeyDown
              • 0x31acb:$a36: get_AltKeyDown
              • 0x30701:$a37: get_Password
              • 0x31215:$a38: get_PasswordHash
              • 0x32310:$a39: get_DefaultCredentials
              0.2.SHIPMENT DOCUMENTS.exe.3d715a0.1.unpackJoeSecurity_AgentTesla_1Yara detected AgentTeslaJoe Security
                Click to see the 15 entries

                Persistence and Installation Behavior

                Source: Process startedAuthor: Joe Security: Data: Command: C:\Windows\System32\schtasks.exe" /Create /TN "Updates\cnWCiicEpxW" /XML "C:\Users\user\AppData\Local\Temp\tmp2A80.tmp, CommandLine: C:\Windows\System32\schtasks.exe" /Create /TN "Updates\cnWCiicEpxW" /XML "C:\Users\user\AppData\Local\Temp\tmp2A80.tmp, CommandLine|base64offset|contains: *j, Image: C:\Windows\SysWOW64\schtasks.exe, NewProcessName: C:\Windows\SysWOW64\schtasks.exe, OriginalFileName: C:\Windows\SysWOW64\schtasks.exe, ParentCommandLine: C:\Users\user\Desktop\SHIPMENT DOCUMENTS.exe, ParentImage: C:\Users\user\Desktop\SHIPMENT DOCUMENTS.exe, ParentProcessId: 3192, ParentProcessName: SHIPMENT DOCUMENTS.exe, ProcessCommandLine: C:\Windows\System32\schtasks.exe" /Create /TN "Updates\cnWCiicEpxW" /XML "C:\Users\user\AppData\Local\Temp\tmp2A80.tmp, ProcessId: 5900, ProcessName: schtasks.exe
                No Snort rule has matched

                Click to jump to signature section

                Show All Signature Results

                AV Detection

                Source: SHIPMENT DOCUMENTS.exeVirustotal: Detection: 36%Perma Link
                Source: SHIPMENT DOCUMENTS.exeReversingLabs: Detection: 32%
                Source: C:\Users\user\AppData\Roaming\cnWCiicEpxW.exeReversingLabs: Detection: 32%
                Source: SHIPMENT DOCUMENTS.exeJoe Sandbox ML: detected
                Source: C:\Users\user\AppData\Roaming\cnWCiicEpxW.exeJoe Sandbox ML: detected
                Source: 20.0.SHIPMENT DOCUMENTS.exe.400000.0.unpackAvira: Label: TR/Spy.Gen8
                Source: 20.0.SHIPMENT DOCUMENTS.exe.400000.0.unpackMalware Configuration Extractor: Agenttesla {"Exfil Mode": "SMTP", "Host": "mail.southernboilers.org", "Username": "info@southernboilers.org", "Password": "Sksmoke2018#"}
                Source: unknownHTTPS traffic detected: -> version: TLS 1.2
                Source: unknownHTTPS traffic detected: -> version: TLS 1.2