Joe Sandbox Cloud Basic Analysis Report

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Windows Analysis Report
SecuriteInfo.com.Win32.CrypterX-gen.11851.17452.exe

Overview

General Information

Sample Name:SecuriteInfo.com.Win32.CrypterX-gen.11851.17452.exe
Analysis ID:756002
MD5:d6f0e59d1bb1d559029da21e132a1c9b
SHA1:7b760ca553c6d95126146825b1f5b846d5a69378
SHA256:0afcaf64f298203c19ee5001aeb67a4a785a2a3a56fac3ead54c86811583d873
Tags:exe
Infos:

Detection

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

Signatures

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
Snort IDS alert for network traffic
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
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)
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
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)
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)
Creates a process in suspended mode (likely to inject code)

Classification

Process Tree

  • System is w10x64
  • wPBZqbH.exe (PID: 2816 cmdline: "C:\Users\user\AppData\Roaming\wPBZqbH\wPBZqbH.exe" MD5: D6F0E59D1BB1D559029DA21E132A1C9B)
    • wPBZqbH.exe (PID: 5328 cmdline: C:\Users\user\AppData\Roaming\wPBZqbH\wPBZqbH.exe MD5: D6F0E59D1BB1D559029DA21E132A1C9B)
  • wPBZqbH.exe (PID: 5316 cmdline: "C:\Users\user\AppData\Roaming\wPBZqbH\wPBZqbH.exe" MD5: D6F0E59D1BB1D559029DA21E132A1C9B)
  • cleanup

Malware Configuration

Threatname: Agenttesla

{"Exfil Mode": "SMTP", "Host": "mail.akademetre.com", "Username": "suletas@akademetre.com", "Password": "st6473"}

Yara Signatures

Memory Dumps

SourceRuleDescriptionAuthorStrings
0000000B.00000002.361237827.0000000002CF1000.00000004.00000800.00020000.00000000.sdmpJoeSecurity_AntiVM_3Yara detected AntiVM_3Joe Security
    00000000.00000002.296635266.000000000420B000.00000004.00000800.00020000.00000000.sdmpJoeSecurity_AgentTesla_1Yara detected AgentTeslaJoe Security
      00000000.00000002.296635266.000000000420B000.00000004.00000800.00020000.00000000.sdmpJoeSecurity_AgentTesla_2Yara detected AgentTeslaJoe Security
        00000000.00000002.296635266.000000000420B000.00000004.00000800.00020000.00000000.sdmpWindows_Trojan_AgentTesla_d3ac2b2funknownunknown
        • 0x143c06:$a13: get_DnsResolver
        • 0x17a426:$a13: get_DnsResolver
        • 0x1b0a46:$a13: get_DnsResolver
        • 0x142313:$a20: get_LastAccessed
        • 0x178b33:$a20: get_LastAccessed
        • 0x1af153:$a20: get_LastAccessed
        • 0x144634:$a27: set_InternalServerPort
        • 0x17ae54:$a27: set_InternalServerPort
        • 0x1b1474:$a27: set_InternalServerPort
        • 0x144969:$a30: set_GuidMasterKey
        • 0x17b189:$a30: set_GuidMasterKey
        • 0x1b17a9:$a30: set_GuidMasterKey
        • 0x142425:$a33: get_Clipboard
        • 0x178c45:$a33: get_Clipboard
        • 0x1af265:$a33: get_Clipboard
        • 0x142433:$a34: get_Keyboard
        • 0x178c53:$a34: get_Keyboard
        • 0x1af273:$a34: get_Keyboard
        • 0x143800:$a35: get_ShiftKeyDown
        • 0x17a020:$a35: get_ShiftKeyDown
        • 0x1b0640:$a35: get_ShiftKeyDown
        0000000B.00000002.365450020.0000000002FEB000.00000004.00000800.00020000.00000000.sdmpJoeSecurity_AntiVM_3Yara detected AntiVM_3Joe Security
          Click to see the 18 entries

          Unpacked PEs

          SourceRuleDescriptionAuthorStrings
          11.2.wPBZqbH.exe.2d3063c.1.raw.unpackJoeSecurity_AntiVM_3Yara detected AntiVM_3Joe Security
            11.2.wPBZqbH.exe.2d3063c.1.raw.unpackINDICATOR_SUSPICIOUS_EXE_Anti_OldCopyPasteDetects executables potentially checking for WinJail sandbox windowditekSHen
            • 0xd16a:$v1: SbieDll.dll
            • 0xd184:$v2: USER
            • 0xd190:$v3: SANDBOX
            • 0xd1a2:$v4: VIRUS
            • 0xd1f2:$v4: VIRUS
            • 0xd1b0:$v5: MALWARE
            • 0xd1c2:$v6: SCHMIDTI
            • 0xd1d6:$v7: CURRENTUSER
            11.2.wPBZqbH.exe.2d12e6c.0.raw.unpackJoeSecurity_AntiVM_3Yara detected AntiVM_3Joe Security
              11.2.wPBZqbH.exe.2d12e6c.0.raw.unpackINDICATOR_SUSPICIOUS_EXE_Anti_OldCopyPasteDetects executables potentially checking for WinJail sandbox windowditekSHen
              • 0x2a93a:$v1: SbieDll.dll
              • 0x2a954:$v2: USER
              • 0x2a960:$v3: SANDBOX
              • 0x2a972:$v4: VIRUS
              • 0x2a9c2:$v4: VIRUS
              • 0x2a980:$v5: MALWARE
              • 0x2a992:$v6: SCHMIDTI
              • 0x2a9a6:$v7: CURRENTUSER
              0.2.SecuriteInfo.com.Win32.CrypterX-gen.11851.17452.exe.2ff0724.1.raw.unpackJoeSecurity_AntiVM_3Yara detected AntiVM_3Joe Security
                Click to see the 25 entries

                Sigma Signatures

                ⊘No Sigma rule has matched

                Snort Signatures

                Timestamp:192.168.2.3212.58.6.82496995872840032 11/29/22-13:51:17.089585
                SID:2840032
                Source Port:49699
                Destination Port:587
                Protocol:TCP
                Classtype:A Network Trojan was detected