Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    17-09-2024 10:30

General

  • Target

    Paymet.exe

  • Size

    2.5MB

  • MD5

    2fd029782f709559adefb235eedbd093

  • SHA1

    677219bbd0ab70938a2a658b336418df69c9bb15

  • SHA256

    fe03eaf28bc8911f525983a47431e8e4d338a8abc7f2c7833596480ea5eddb02

  • SHA512

    c86032f2060a89e82ee32549612d5004d10d23010f3e7647821bac25a05340a381f7e0355be63d8ff7f8ccd4d26a2605dcda3e114bd3471e2497410f6b7e029d

  • SSDEEP

    12288:fHPEAmDrpKPtlUM7X1dsUxawC66IHn4Ks6axdNFAzE8l1+/bU5G7AOsS7o:fHPHDUujFC66ge5FMRl1dG7eS7o

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.fosna.net
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    u;4z3V.Iir1l

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • UAC bypass 3 TTPs 1 IoCs
  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Paymet.exe
    "C:\Users\Admin\AppData\Local\Temp\Paymet.exe"
    1⤵
    • UAC bypass
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:2476
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Paymet.exe" -Force
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1620
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"
      2⤵
        PID:2740
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe"
        2⤵
          PID:2840
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe"
          2⤵
            PID:2756
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
            2⤵
              PID:3028
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:2932
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
              2⤵
                PID:2656

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • memory/1620-8-0x0000000002B20000-0x0000000002BA0000-memory.dmp

              Filesize

              512KB

            • memory/1620-10-0x0000000002070000-0x0000000002078000-memory.dmp

              Filesize

              32KB

            • memory/1620-9-0x000000001B4C0000-0x000000001B7A2000-memory.dmp

              Filesize

              2.9MB

            • memory/2476-0-0x000007FEF5D63000-0x000007FEF5D64000-memory.dmp

              Filesize

              4KB

            • memory/2476-1-0x0000000000870000-0x0000000000888000-memory.dmp

              Filesize

              96KB

            • memory/2476-2-0x000000001AB10000-0x000000001ABA4000-memory.dmp

              Filesize

              592KB

            • memory/2476-3-0x000007FEF5D60000-0x000007FEF674C000-memory.dmp

              Filesize

              9.9MB

            • memory/2476-31-0x000007FEF5D60000-0x000007FEF674C000-memory.dmp

              Filesize

              9.9MB

            • memory/2840-17-0x0000000000400000-0x0000000000442000-memory.dmp

              Filesize

              264KB

            • memory/2840-13-0x0000000000400000-0x0000000000442000-memory.dmp

              Filesize

              264KB

            • memory/2840-11-0x0000000000400000-0x0000000000442000-memory.dmp

              Filesize

              264KB

            • memory/2840-15-0x0000000000400000-0x0000000000442000-memory.dmp

              Filesize

              264KB

            • memory/2932-30-0x0000000000400000-0x0000000000442000-memory.dmp

              Filesize

              264KB

            • memory/2932-29-0x0000000000400000-0x0000000000442000-memory.dmp

              Filesize

              264KB

            • memory/2932-28-0x0000000000400000-0x0000000000442000-memory.dmp

              Filesize

              264KB

            • memory/2932-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

              Filesize

              4KB