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Windows Analysis Report
PI PDF.exe

Overview

General Information

Sample Name:PI PDF.exe
Analysis ID:626548
MD5:530c898ee065629d77b0b12781991d4f
SHA1:316f4b32bdcaca1902a7e9898a31f3fae42ebe30
SHA256:56e4da2be0de5210fa5f78b35aed78dc18145164b03c396d85098368aae825a5
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
Multi AV Scanner detection for dropped file
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
Modifies the hosts file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Machine Learning detection for sample
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Hides that the sample has been downloaded from the Internet (zone.identifier)
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
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
Sample execution stops while process was sleeping (likely an evasion)
Yara detected Credential Stealer
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)
Found inlined nop instructions (likely shell or obfuscated code)
Sample file is different than original file name gathered from version info
Drops PE files
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)

Classification

  • System is w10x64
  • PI PDF.exe (PID: 6928 cmdline: "C:\Users\user\Desktop\PI PDF.exe" MD5: 530C898EE065629D77B0B12781991D4F)
    • schtasks.exe (PID: 6320 cmdline: C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jAZPdPbNZIxFH" /XML "C:\Users\user\AppData\Local\Temp\tmp3224.tmp MD5: 15FF7D8324231381BAD48A052F85DF04)
      • conhost.exe (PID: 6292 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
    • PI PDF.exe (PID: 6384 cmdline: {path} MD5: 530C898EE065629D77B0B12781991D4F)
    • PI PDF.exe (PID: 6344 cmdline: {path} MD5: 530C898EE065629D77B0B12781991D4F)
  • bwjRNo.exe (PID: 5976 cmdline: "C:\Users\user\AppData\Roaming\bwjRNo\bwjRNo.exe" MD5: 530C898EE065629D77B0B12781991D4F)
    • schtasks.exe (PID: 6948 cmdline: C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jAZPdPbNZIxFH" /XML "C:\Users\user\AppData\Local\Temp\tmpC00D.tmp MD5: 15FF7D8324231381BAD48A052F85DF04)
      • conhost.exe (PID: 6968 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
    • bwjRNo.exe (PID: 1112 cmdline: {path} MD5: 530C898EE065629D77B0B12781991D4F)
    • bwjRNo.exe (PID: 4588 cmdline: {path} MD5: 530C898EE065629D77B0B12781991D4F)
    • bwjRNo.exe (PID: 1252 cmdline: {path} MD5: 530C898EE065629D77B0B12781991D4F)
    • bwjRNo.exe (PID: 6808 cmdline: {path} MD5: 530C898EE065629D77B0B12781991D4F)
  • bwjRNo.exe (PID: 6228 cmdline: "C:\Users\user\AppData\Roaming\bwjRNo\bwjRNo.exe" MD5: 530C898EE065629D77B0B12781991D4F)
  • cleanup
{"Exfil Mode": "SMTP", "Username": "basker@ocenmasters.com", "Password": "donblack12345", "Host": "webmail.ocenmasters.com"}
SourceRuleDescriptionAuthorStrings
00000008.00000000.291840024.0000000000402000.00000040.00000400.00020000.00000000.sdmpJoeSecurity_AgentTesla_1Yara detected AgentTeslaJoe Security
    00000008.00000000.291840024.0000000000402000.00000040.00000400.00020000.00000000.sdmpJoeSecurity_AgentTesla_2Yara detected AgentTeslaJoe Security
      00000008.00000000.290109897.0000000000402000.00000040.00000400.00020000.00000000.sdmpJoeSecurity_AgentTesla_1Yara detected AgentTeslaJoe Security
        00000008.00000000.290109897.0000000000402000.00000040.00000400.00020000.00000000.sdmpJoeSecurity_AgentTesla_2Yara detected AgentTeslaJoe Security
          00000008.00000000.291116090.0000000000402000.00000040.00000400.00020000.00000000.sdmpJoeSecurity_AgentTesla_1Yara detected AgentTeslaJoe Security
            Click to see the 38 entries
            SourceRuleDescriptionAuthorStrings
            0.2.PI PDF.exe.3f50928.4.raw.unpackJoeSecurity_AgentTesla_1Yara detected AgentTeslaJoe Security
              0.2.PI PDF.exe.3f50928.4.raw.unpackJoeSecurity_AgentTesla_2Yara detected AgentTeslaJoe Security
                0.2.PI PDF.exe.3f50928.4.raw.unpackMALWARE_Win_AgentTeslaV3AgentTeslaV3 infostealer payloadditekSHen
                • 0x10fb9d:$s10: logins
                • 0x10f604:$s11: credential
                • 0x10bac6:$g1: get_Clipboard
                • 0x10bad4:$g2: get_Keyboard
                • 0x10bae1:$g3: get_Password
                • 0x10ce98:$g4: get_CtrlKeyDown
                • 0x10cea8:$g5: get_ShiftKeyDown
                • 0x10ceb9:$g6: get_AltKeyDown
                0.2.PI PDF.exe.3e18ae8.3.raw.unpackJoeSecurity_AgentTesla_1Yara detected AgentTeslaJoe Security
                  0.2.PI PDF.exe.3e18ae8.3.raw.unpackJoeSecurity_AgentTesla_2Yara detected AgentTeslaJoe Security