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Windows Analysis Report
From Richard.exe

Overview

General Information

Sample Name:From Richard.exe
Analysis ID:626543
MD5:fa530d1cf018a5cc8c8215344b09d2f7
SHA1:bbd46bf5bead0b503ce045e5d5a856745bca49b9
SHA256:fe581076f8a8cd90b93b2bca8fde7fa8008c2c1c0962fc0282f785354fcda4a4
Tags:agentteslaexe
Infos:

Detection

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

Signatures

Found malware configuration
Multi AV Scanner detection for submitted file
Malicious sample detected (through community Yara rule)
Yara detected AgentTesla
Yara detected AntiVM3
Installs a global keyboard hook
Tries to steal Mail credentials (via file / registry access)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Machine Learning detection for sample
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains very large array initializations
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
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)
Internet Provider seen in connection with other malware
Detected potential crypto function
Found potential string decryption / allocating functions
Yara detected Credential Stealer
Contains long sleeps (>= 3 min)
Enables debug privileges
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
Detected TCP or UDP traffic on non-standard ports
Uses SMTP (mail sending)
Creates a window with clipboard capturing capabilities
Queries sensitive processor information (via WMI, Win32_Processor, often done to detect virtual machines)
Creates a process in suspended mode (likely to inject code)
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)

Classification

  • System is w10x64
  • From Richard.exe (PID: 6432 cmdline: "C:\Users\user\Desktop\From Richard.exe" MD5: FA530D1CF018A5CC8C8215344B09D2F7)
    • From Richard.exe (PID: 6732 cmdline: C:\Users\user\Desktop\From Richard.exe MD5: FA530D1CF018A5CC8C8215344B09D2F7)
    • From Richard.exe (PID: 6740 cmdline: C:\Users\user\Desktop\From Richard.exe MD5: FA530D1CF018A5CC8C8215344B09D2F7)
  • cleanup
{"Exfil Mode": "SMTP", "Username": "btc@imfalert.com", "Password": "dontgiveup@2022", "Host": "mail.imfalert.com"}
SourceRuleDescriptionAuthorStrings
00000005.00000000.271694098.0000000000402000.00000040.00000400.00020000.00000000.sdmpJoeSecurity_AgentTesla_1Yara detected AgentTeslaJoe Security
    00000005.00000000.271694098.0000000000402000.00000040.00000400.00020000.00000000.sdmpJoeSecurity_AgentTesla_2Yara detected AgentTeslaJoe Security
      00000005.00000000.271208855.0000000000402000.00000040.00000400.00020000.00000000.sdmpJoeSecurity_AgentTesla_1Yara detected AgentTeslaJoe Security
        00000005.00000000.271208855.0000000000402000.00000040.00000400.00020000.00000000.sdmpJoeSecurity_AgentTesla_2Yara detected AgentTeslaJoe Security
          00000005.00000002.508749383.0000000000402000.00000040.00000400.00020000.00000000.sdmpJoeSecurity_AgentTesla_1Yara detected AgentTeslaJoe Security
            Click to see the 14 entries
            SourceRuleDescriptionAuthorStrings
            5.0.From Richard.exe.400000.12.unpackJoeSecurity_AgentTesla_1Yara detected AgentTeslaJoe Security
              5.0.From Richard.exe.400000.12.unpackJoeSecurity_AgentTesla_2Yara detected AgentTeslaJoe Security
                5.0.From Richard.exe.400000.12.unpackMALWARE_Win_AgentTeslaV3AgentTeslaV3 infostealer payloadditekSHen
                • 0x32b21:$s10: logins
                • 0x32588:$s11: credential
                • 0x2eb72:$g1: get_Clipboard
                • 0x2eb80:$g2: get_Keyboard
                • 0x2eb8d:$g3: get_Password
                • 0x2fe91:$g4: get_CtrlKeyDown
                • 0x2fea1:$g5: get_ShiftKeyDown
                • 0x2feb2:$g6: get_AltKeyDown
                5.2.From Richard.exe.400000.0.unpackJoeSecurity_AgentTesla_1Yara detected AgentTeslaJoe Security
                  5.2.From Richard.exe.400000.0.unpackJoeSecurity_AgentTesla_2Yara detected AgentTeslaJoe Security
                    Click to see the 34 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: 5.0.From Richard.exe.400000.12.unpackMalware Configuration Extractor: Agenttesla {"Exfil Mode": "SMTP", "Username": "btc@imfalert.com", "Password": "dontgiveup@2022", "Host": "mail.imfalert.com"}
                    Source: From Richard.exeVirustotal: Detection: 49%Perma Link
                    Source: From Richard.exeReversingLabs: Detection: 46%
                    Source: From Richard.exeJoe Sandbox ML: detected
                    Source: 5.0.From Richard.exe.400000.12.unpackAvira: Label: TR/Spy.Gen8
                    Source: 5.2.From Richard.exe.400000.0.unpackAvira: Label: TR/Spy.Gen8
                    Source: 5.0.From Richard.exe.400000.8.unpackAvira: Label: TR/Spy.Gen8
                    Source: 5.0.From Richard.exe.400000.4.unpackAvira: Label: TR/Spy.Gen8
                    Source: 5.0.From Richard.exe.400000.10.unpackAvira: Label: TR/Spy.Gen8
                    Source: 5.0.From Richard.exe.400000.6.unpackAvira: Label: TR/Spy.Gen8