Joe Sandbox Cloud Basic Analysis Report

Loading Joe Sandbox Report ...

Edit tour

Windows Analysis Report
MACHINE SPECIFICATIONS.exe

Overview

General Information

Sample Name:MACHINE SPECIFICATIONS.exe
Analysis ID:755960
MD5:92945d0a2731ef771ea9d10c792e03e1
SHA1:1eeef600b7b51ce7aa93e825be55b40f3ef8e319
SHA256:46b61250c34b38d26ac5897217e6b70a222ff16318161c4e67c74c74491cc612
Tags:exe
Infos:

Detection

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

Signatures

Multi AV Scanner detection for submitted file
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Malicious sample detected (through community Yara rule)
Yara detected AgentTesla
Antivirus detection for URL or domain
Snort IDS alert for network traffic
Installs a global keyboard hook
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
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
Machine Learning detection for sample
May check the online IP address of the machine
Injects a PE file into a foreign processes
.NET source code contains very large array initializations
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)
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
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)
PE file does not import any functions
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
Creates a window with clipboard capturing capabilities
Uses FTP
Queries sensitive processor information (via WMI, Win32_Processor, often done to detect virtual machines)
Dropped file seen in connection with other malware
Creates a process in suspended mode (likely to inject code)
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)

Classification

Process Tree

  • System is w10x64
  • MACHINE SPECIFICATIONS.exe (PID: 6128 cmdline: C:\Users\user\Desktop\MACHINE SPECIFICATIONS.exe MD5: 92945D0A2731EF771EA9D10C792E03E1)
    • CasPol.exe (PID: 688 cmdline: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe MD5: F866FC1C2E928779C7119353C3091F0C)
  • newapp.exe (PID: 4272 cmdline: "C:\Users\user\AppData\Roaming\newapp\newapp.exe" MD5: F866FC1C2E928779C7119353C3091F0C)
    • conhost.exe (PID: 4764 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
  • newapp.exe (PID: 676 cmdline: "C:\Users\user\AppData\Roaming\newapp\newapp.exe" MD5: F866FC1C2E928779C7119353C3091F0C)
    • conhost.exe (PID: 6132 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
  • cleanup

Malware Configuration

Threatname: Agenttesla

{"Exfil Mode": "FTP", "FTP Host": "ftp://ftp.electrobist.com", "Username": "user1@electrobist.com", "Password": "w&oNc9e]pf~4"}

Yara Signatures

Memory Dumps

SourceRuleDescriptionAuthorStrings
0000000A.00000000.345984518.0000000000402000.00000040.00000400.00020000.00000000.sdmpJoeSecurity_AgentTesla_1Yara detected AgentTeslaJoe Security
    0000000A.00000000.345984518.0000000000402000.00000040.00000400.00020000.00000000.sdmpJoeSecurity_AgentTesla_2Yara detected AgentTeslaJoe Security
      0000000A.00000000.345984518.0000000000402000.00000040.00000400.00020000.00000000.sdmpWindows_Trojan_AgentTesla_d3ac2b2funknownunknown
      • 0x31fc8:$a13: get_DnsResolver
      • 0x306b2:$a20: get_LastAccessed
      • 0x329f6:$a27: set_InternalServerPort
      • 0x32d2b:$a30: set_GuidMasterKey
      • 0x307c4:$a33: get_Clipboard
      • 0x307d2:$a34: get_Keyboard
      • 0x31bae:$a35: get_ShiftKeyDown
      • 0x31bbf:$a36: get_AltKeyDown
      • 0x307df:$a37: get_Password
      • 0x31303:$a38: get_PasswordHash
      • 0x3242a:$a39: get_DefaultCredentials
      0000000A.00000002.767841057.0000000002881000.00000004.00000800.00020000.00000000.sdmpJoeSecurity_CredentialStealerYara detected Credential StealerJoe Security
        0000000A.00000002.768390327.00000000028D4000.00000004.00000800.00020000.00000000.sdmpJoeSecurity_AgentTesla_1Yara detected AgentTeslaJoe Security
          Click to see the 4 entries

          Unpacked PEs

          SourceRuleDescriptionAuthorStrings
          10.0.CasPol.exe.400000.0.unpackJoeSecurity_AgentTesla_1Yara detected AgentTeslaJoe Security
            10.0.CasPol.exe.400000.0.unpackJoeSecurity_AgentTesla_2Yara detected AgentTeslaJoe Security
              10.0.CasPol.exe.400000.0.unpackMALWARE_Win_AgentTeslaV3AgentTeslaV3 infostealer payloadditekSHen
              • 0x34d04:$s10: logins
              • 0x3477e:$s11: credential
              • 0x309c4:$g1: get_Clipboard
              • 0x309d2:$g2: get_Keyboard
              • 0x309df:$g3: get_Password
              • 0x31d9e:$g4: get_CtrlKeyDown
              • 0x31dae:$g5: get_ShiftKeyDown
              • 0x31dbf:$g6: get_AltKeyDown
              10.0.CasPol.exe.400000.0.unpackWindows_Trojan_AgentTesla_d3ac2b2funknownunknown
              • 0x321c8:$a13: get_DnsResolver
              • 0x308b2:$a20: get_LastAccessed
              • 0x32bf6:$a27: set_InternalServerPort
              • 0x32f2b:$a30: set_GuidMasterKey
              • 0x309c4:$a33: get_Clipboard
              • 0x309d2:$a34: get_Keyboard
              • 0x31dae:$a35: get_ShiftKeyDown
              • 0x31dbf:$a36: get_AltKeyDown
              • 0x309df:$a37: get_Password
              • 0x31503:$a38: get_PasswordHash
              • 0x3262a:$a39: get_DefaultCredentials

              Sigma Signatures

              ⊘No Sigma rule has matched

              Snort Signatures

              Timestamp:192.168.2.351.195.62.16049702212029927 11/29/22-11:20:12.397759
              SID:2029927
              Source Port:49702
              Destination Port:21
              Protocol:TCP
              Classtype:A Network Trojan was detected
              Timestamp:192.168.2.351.195.62.16049703522592851779 11/29/22-11:20:12.420526
              SID:2851779
              Source Port:49703
              Destination Port:52259
              Protocol:TCP
              Classtype:A Network Trojan was detected

              Joe Sandbox Signatures

              Click to jump to signature section

              Show All Signature Results

              AV Detection

              barindex
              Multi AV Scanner detection for submitted file
              Source: MACHINE SPECIFICATIONS.exeVirustotal: Detection: 58%Perma Link
              Source: MACHINE SPECIFICATIONS.exeReversingLabs: Detection: 73%
              Antivirus detection for URL or domain
              Source: http://ftp.electrobist.comAvira URL Cloud: Label: malware
              Machine Learning detection for sample
              Source: MACHINE SPECIFICATIONS.exeJoe Sandbox ML: detected
              Source: 10.0.CasPol.exe.400000.0.unpackAvira: Label: TR/Spy.Gen8
              Source: 10.0.CasPol.exe.400000.0.unpackMalware Configuration Extractor: Agenttesla {"Exfil Mode": "FTP", "FTP Host": "ftp://ftp.electrobist.com", "Username": "user1@electrobist.com", "Password": "w&oNc9e]pf~4"}
              Source: unknownHTTPS traffic detected: 3.220.57.224:443 -> 192.168.2.3:49701 version: TLS 1.2
              Source: MACHINE SPECIFICATIONS.exeStatic PE information: HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE
              Source: Binary string: caspol.pdbdv source: CasPol.exe, 0000000A.00000003.399059752.00000000059A9000.00000004.00000800.00020000.00000000.sdmp, newapp.exe, 0000000B.00000000.387084223.0000000000802000.00000002.00000001.01000000.00000007.sdmp, newapp.exe.10.dr
              Source: Binary string: caspol.pdb source: CasPol.exe, 0000000A.00000003.399059752.00000000059A9000.00000004.00000800.00020000.00000000.sdmp, newapp.exe, 0000000B.00000000.387084223.0000000000802000.00000002.00000001.01000000.00000007.sdmp, newapp.exe.10.dr
              Source: Binary string: C:\Users\Memm\Downloads\JesusIsTheLord\obj\Debug\Meme.pdb source: MACHINE SPECIFICATIONS.exe

              Networking

              bar