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Windows Analysis Report
rPurchaseOrder300610-PDF.exe

Overview

General Information

Sample name:rPurchaseOrder300610-PDF.exe
Analysis ID:1455405
MD5:e76975d634d228179adc45cad8f2000d
SHA1:9e5d85b6a9ce9c4ca3793c7f140e57e9ed024db3
SHA256:308004785363cf352a7c339d778f301bd25686dc8463190a41f3a5f65eb6c1dc
Tags:AgentTeslaexe
Infos:

Detection

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

Signatures

Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected AgentTesla
AI detected suspicious sample
Binary is likely a compiled AutoIt script file
Contains functionality to log keystrokes (.Net Source)
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Maps a DLL or memory area into another process
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Switches to a custom stack to bypass stack traces
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Contains functionality for read data from the clipboard
Contains functionality to block mouse and keyboard input (often used to hinder debugging)
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Contains functionality to check if a debugger is running (OutputDebugString,GetLastError)
Contains functionality to check if a window is minimized (may be used to check if an application is visible)
Contains functionality to communicate with device drivers
Contains functionality to dynamically determine API calls
Contains functionality to execute programs as a different user
Contains functionality to launch a process as a different user
Contains functionality to launch a program with higher privileges
Contains functionality to modify clipboard data
Contains functionality to open a port and listen for incoming connection (possibly a backdoor)
Contains functionality to query CPU information (cpuid)
Contains functionality to read the PEB
Contains functionality to read the clipboard data
Contains functionality to retrieve information about pressed keystrokes
Contains functionality to shutdown / reboot the system
Contains functionality to simulate keystroke presses
Contains functionality to simulate mouse events
Contains functionality which may be used to detect a debugger (GetProcessHeap)
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Detected TCP or UDP traffic on non-standard ports
Detected potential crypto function
Extensive use of GetProcAddress (often used to hide API calls)
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Found evasive API chain (date check)
Found large amount of non-executed APIs
Found potential string decryption / allocating functions
Internet Provider seen in connection with other malware
OS version to string mapping found (often used in BOTs)
Potential key logger detected (key state polling based)
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive processor information (via WMI, Win32_Processor, often done to detect virtual machines)
Queries the volume information (name, serial number etc) of a device
Sample file is different than original file name gathered from version info
Sigma detected: Suspicious Outbound SMTP Connections
Uses 32bit PE files
Uses SMTP (mail sending)
Uses code obfuscation techniques (call, push, ret)
Yara detected Credential Stealer
Yara signature match

Classification

  • System is w10x64
  • rPurchaseOrder300610-PDF.exe (PID: 7268 cmdline: "C:\Users\user\Desktop\rPurchaseOrder300610-PDF.exe" MD5: E76975D634D228179ADC45CAD8F2000D)
    • RegSvcs.exe (PID: 7284 cmdline: "C:\Users\user\Desktop\rPurchaseOrder300610-PDF.exe" MD5: 9D352BC46709F0CB5EC974633A0C3C94)
  • cleanup
NameDescriptionAttributionBlogpost URLsLink
Agent Tesla, AgentTeslaA .NET based information stealer readily available to actors due to leaked builders. The malware is able to log keystrokes, can access the host's clipboard and crawls the disk for credentials or other valuable information. It has the capability to send information back to its C&C via HTTP(S), SMTP, FTP, or towards a Telegram channel.
  • SWEED
https://malpedia.caad.fkie.fraunhofer.de/details/win.agent_tesla
{"Exfil Mode": "SMTP", "Port": "587", "Host": "srv.masternic.net", "Username": "technical2@petropardis.ir", "Password": "-H{2Szxi!%qb"}
SourceRuleDescriptionAuthorStrings
00000000.00000002.1737903972.0000000003630000.00000004.00001000.00020000.00000000.sdmpJoeSecurity_CredentialStealerYara detected Credential StealerJoe Security
    00000000.00000002.1737903972.0000000003630000.00000004.00001000.00020000.00000000.sdmpJoeSecurity_AgentTesla_1Yara detected AgentTeslaJoe Security
      00000000.00000002.1737903972.0000000003630000.00000004.00001000.00020000.00000000.sdmpINDICATOR_SUSPICIOUS_EXE_VaultSchemaGUIDDetects executables referencing Windows vault credential objects. Observed in infostealersditekSHen
      • 0x334c7:$s1: 2F1A6504-0641-44CF-8BB5-3612D865F2E5
      • 0x33539:$s2: 3CCD5499-87A8-4B10-A215-608888DD3B55
      • 0x335c3:$s3: 154E23D0-C644-4E6F-8CE6-5069272F999F
      • 0x33655:$s4: 4BF4C442-9B8A-41A0-B380-DD4A704DDB28
      • 0x336bf:$s5: 77BC582B-F0A6-4E15-4E80-61736B6F3B29
      • 0x33731:$s6: E69D7838-91B5-4FC9-89D5-230D4D4CC2BC
      • 0x337c7:$s7: 3E0E35BE-1B77-43E7-B873-AED901B6275B
      • 0x33857:$s8: 3C886FF3-2669-4AA2-A8FB-3F6759A77548
      00000001.00000002.2983820925.000000000319E000.00000004.00000800.00020000.00000000.sdmpJoeSecurity_AgentTesla_1Yara detected AgentTeslaJoe Security
        00000001.00000002.2983011276.0000000000402000.00000040.80000000.00040000.00000000.sdmpJoeSecurity_CredentialStealerYara detected Credential StealerJoe Security
          Click to see the 8 entries
          SourceRuleDescriptionAuthorStrings
          1.2.RegSvcs.exe.400000.0.unpackJoeSecurity_CredentialStealerYara detected Credential StealerJoe Security
            1.2.RegSvcs.exe.400000.0.unpackJoeSecurity_AgentTesla_1Yara detected AgentTeslaJoe Security
              1.2.RegSvcs.exe.400000.0.unpackINDICATOR_SUSPICIOUS_EXE_VaultSchemaGUIDDetects executables referencing Windows vault credential objects. Observed in infostealersditekSHen
              • 0x334c7:$s1: 2F1A6504-0641-44CF-8BB5-3612D865F2E5
              • 0x33539:$s2: 3CCD5499-87A8-4B10-A215-608888DD3B55
              • 0x335c3:$s3: 154E23D0-C644-4E6F-8CE6-5069272F999F
              • 0x33655:$s4: 4BF4C442-9B8A-41A0-B380-DD4A704DDB28
              • 0x336bf:$s5: 77BC582B-F0A6-4E15-4E80-61736B6F3B29
              • 0x33731:$s6: E69D7838-91B5-4FC9-89D5-230D4D4CC2BC
              • 0x337c7:$s7: 3E0E35BE-1B77-43E7-B873-AED901B6275B
              • 0x33857:$s8: 3C886FF3-2669-4AA2-A8FB-3F6759A77548
              0.2.rPurchaseOrder300610-PDF.exe.3630000.1.raw.unpackJoeSecurity_CredentialStealerYara detected Credential StealerJoe Security
                0.2.rPurchaseOrder300610-PDF.exe.3630000.1.raw.unpackJoeSecurity_AgentTesla_1Yara detected AgentTeslaJoe Security
                  Click to see the 4 entries

                  System Summary

                  barindex
                  Source: Network ConnectionAuthor: frack113: Data: DestinationIp: 174.141.234.138, DestinationIsIpv6: false, DestinationPort: 587, EventID: 3, Image: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe, Initiated: true, ProcessId: 7284, Protocol: tcp, SourceIp: 192.168.2.4, SourceIsIpv6: false, SourcePort: 49731
                  No Snort rule has matched

                  Click to jump to signature section

                  Show All Signature Results

                  AV Detection

                  barindex
                  Source: 1.2.RegSvcs.exe.400000.0.unpackMalware Configuration Extractor: Agenttesla {"Exfil Mode": "SMTP", "Port": "587", "Host": "srv.masternic.net", "Username": "technical2@petropardis.ir", "Password": "-H{2Szxi!%qb"}
                  Source: rPurchaseOrder300610-PDF.exeReversingLabs: Detection: 39%
                  Source: Submited SampleIntegrated Neural Analysis Model: Matched 99.2% probability
                  Source: rPurchaseOrder300610-PDF.exeJoe Sandbox ML: detected
                  Source: rPurchaseOrder300610-PDF.exeStatic PE information: EXECUTABLE_IMAGE, LARGE_ADDRESS_AWARE, 32BIT_MACHINE
                  Source: Binary string: wntdll.pdbUGP source: rPurchaseOrder300610-PDF.exe, 00000000.00000003.1734448104.0000000003CB0000.00000004.00001000.00020000.00000000.sdmp, rPurchaseOrder300610-PDF.exe, 00000000.00000003.1734334049.0000000003B10000.00000004.00001000.00020000.00000000.sdmp
                  Source: Binary string: wntdll.pdb source: rPurchaseOrder300610-PDF.exe, 00000000.00000003.1734448104.0000000003CB0000.00000004.00001000.00020000.00000000.sdmp, rPurchaseOrder300610-PDF.exe, 00000000.00000003.1734334049.0000000003B10000.00000004.00001000.00020000.00000000.sdmp
                  Source: C:\Users\user\Desktop\rPurchaseOrder300610-PDF.exeCode function: 0_2_00844696 GetFileAttributesW,FindFirstFileW,FindClose,0_2_00844696
                  Source: C:\Users\user\Desktop\rPurchaseOrder300610-PDF.exeCode function: 0_2_0084C9C7 FindFirstFileW,FindClose,FileTimeToLocalFileTime,FileTimeToLocalFileTime,FileTimeToLocalFileTime,FileTimeToSystemTime,__swprintf,__swprintf,__swprintf,__swprintf,__swprintf,__swprintf,__swprintf,0_2_0084C9C7
                  Source: C:\Users\user\Desktop\rPurchaseOrder300610-PDF.exeCode function: 0_2_0084C93C FindFirstFileW,FindClose,0_2_0084C93C
                  Source: C:\Users\user\Desktop\rPurchaseOrder300610-PDF.exeCode function: 0_2_0084F200 SetCurrentDirectoryW,FindFirstFileW,FindFirstFileW,_wcscmp,_wcscmp,GetFileAttributesW,SetFileAttributesW,FindNextFileW,FindClose,FindFirstFileW,SetCurrentDirectoryW,_wcscmp,_wcscmp,SetCurrentDirectoryW,SetCurrentDirectoryW,FindNextFileW,FindClose,FindClose,0_2_0084F200
                  Source: C:\Users\user\Desktop\rPurchaseOrder300610-PDF.exeCode function: 0_2_0084F35D SetCurrentDirectoryW,FindFirstFileW,FindFirstFileW,_wcscmp,_wcscmp,FindNextFileW,FindClose,FindFirstFileW,SetCurrentDirectoryW,_wcscmp,_wcscmp,SetCurrentDirectoryW,SetCurrentDirectoryW,FindNextFileW,FindClose,FindClose,0_2_0084F35D
                  Source: C:\Users\user\Desktop\rPurchaseOrder300610-PDF.exeCode function: 0_2_0084F65E FindFirstFileW,Sleep,_wcscmp,_wcscmp,FindNextFileW,FindClose,0_2_0084F65E
                  Source: C:\Users\user\Desktop\rPurchaseOrder300610-PDF.exeCode function: 0_2_00843A2B FindFirstFileW,DeleteFileW,DeleteFileW,MoveFileW,DeleteFileW,FindNextFileW,FindClose,FindClose,0_2_00843A2B
                  Source: C:\Users\user\Desktop\rPurchaseOrder300610-PDF.exeCode function: 0_2_00843D4E FindFirstFileW,DeleteFileW,FindNextFileW,FindClose,FindClose,0_2_00843D4E
                  Source: C:\Users\user\Desktop\rPurchaseOrder300610-PDF.exeCode function: 0_2_0084BF27 FindFirstFileW,_wcscmp,_wcscmp,FindNextFileW,FindClose,0_2_0084BF27
                  Source: global trafficTCP traffic: 192.168.2.4:49731 -> 174.141.234.138:587
                  Source: Joe Sandbox ViewASN Name: ASN-GIGENETUS ASN-GIGENETUS
                  Source: global trafficTCP traffic: 192.168.2.4:49731 -> 174.141.234.138:587
                  Source: unknownUDP traffic detected without corresponding DNS query: 1.1.1.1
                  Source: C:\Users\user\Desktop\rPurchaseOrder300610-PDF.exeCode function: 0_2_008525E2 InternetReadFile,InternetQueryDataAvailable,InternetReadFile,0_2_008525E2
                  Source: global trafficDNS traffic detected: DNS query: srv.masternic.net
                  Source: RegSvcs.exe, 00000001.00000002.2985758558.000000000641B000.00000004.00000020.00020000.00000000.sdmp, RegSvcs.exe, 00000001.00000002.2985758558.0000000006404000.00000004.00000020.00020000.00000000.sdmp, RegSvcs.exe, 00000001.00000002.2983820925.000000000319E000.00000004.00000800.00020000.00000000.sdmpString found in binary or memory: http://crl.comodoca.com/AAACertificateServices.crl04
                  Source: RegSvcs.exe, 00000001.00000002.2985758558.000000000641B000.00000004.00000020.00020000.00000000.sdmpString found in binary or memory: http://crl.comodoca.com/AAACertificateServices.crl06
                  Source: RegSvcs.exe, 00000001.00000002.2983450730.00000000014CD000.00000004.00000020.00020000.00000000.sdmp, RegSvcs.exe, 00000001.00000002.2985758558.0000000006404000.00000004.00000020.00020000.00000000.sdmp, RegSvcs.exe, 00000001.00000002.2983820925.000000000319E000.00000004.00000800.00020000.00000000.sdmpString found in binary or memory: http://crl.comodoca.com/COMODORSACertificationAuthority.crl0q
                  Source: RegSvcs.exe, 00000001.00000002.2983450730.00000000014CD000.00000004.00000020.00020000.00000000.sdmp, RegSvcs.exe, 00000001.00000002.2985758558.0000000006404000.00000004.00000020.00020000.00000000.sdmp, RegSvcs.exe, 00000001.00000002.2983820925.000000000319E000.00000004.00000800.00020000.00000000.sdmpString found in binary or memory: http://crl.comodoca.com/cPanelIncCertificationAuthority.crl0
                  Source: RegSvcs.exe, 00000001.00000002.2983450730.00000000014CD000.00000004.00000020.00020000.00000000.sdmp, RegSvcs.exe, 00000001.00000002.2985758558.000000000641B000.00000004.00000020.00020000.00000000.sdmp, RegSvcs.exe, 00000001.00000002.2985758558.0000000006404000.00000004.00000020.00020000.00000000.sdmp, RegSvcs.exe, 00000001.00000002.2983820925.000000000319E000.00000004.00000800.00020000.00000000.sdmpString found in binary or memory: http://ocsp.comodoca.com0
                  Source: RegSvcs.exe, 00000001.00000002.2983820925.000000000319E000.00000004.00000800.00020000.00000000.sdmpString found in binary or memory: http://srv.masternic.net
                  Source: rPurchaseOrder300610-PDF.exe, 00000000.00000002.1737903972.0000000003630000.00000004.00001000.00020000.00000000.sdmp, RegSvcs.exe, 00000001.00000002.2983011276.0000000000402000.00000040.80000000.00040000.00000000.sdmpString found in binary or memory: https://account.dyn.com/
                  Source: RegSvcs.exe, 00000001.00000002.2983450730.00000000014CD000.00000004.00000020.00020000.00000000.sdmp, RegSvcs.exe, 00000001.00000002.2985758558.0000000006404000.00000004.00000020.00020000.00000000.sdmp, RegSvcs.exe, 00000001.00000002.2983820925.000000000319E000.00000004.00000800.00020000.00000000.sdmpString found in binary or memory: https://sectigo.com/CPS0

                  Key, Mouse, Clipboard, Microphone and Screen Capturing