Analysis

  • max time kernel
    119s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    02/05/2024, 09:55

General

  • Target
    TÜBİTAK SAGE TEKLİF TALEP VE FİYAT TEKLİFİ _xlsx.scr.exe
  • Size 674KB
  • Sample240502-lxr96aed51
  • SHA256 707bbd9a748b709cca51737b3a5221c2f77090fa4af2d2bde2598d8fb08e558e
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

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

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

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\TÜBİTAK SAGE TEKLİF TALEP VE FİYAT TEKLİFİ _xlsx.scr.exe
    "C:\Users\Admin\AppData\Local\Temp\TÜBİTAK SAGE TEKLİF TALEP VE FİYAT TEKLİFİ _xlsx.scr.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2204
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\TÜBİTAK SAGE TEKLİF TALEP VE FİYAT TEKLİFİ _xlsx.scr.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2168
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\EapXuPYlIxrsca.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2616
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EapXuPYlIxrsca" /XML "C:\Users\Admin\AppData\Local\Temp\tmp455A.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2672
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:940

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        tmp455A.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmp455A.tmp
        • Size 1KB
        • SHA256 cdc9185dfd24273e0693ae245b9c14f898b878e4d79e9d593f72effaf44be344
        • MD5 SHA1 SHA512

        d93f411851d7c929.customDestinations-ms

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
        • Size 7KB
        • SHA256 be94697ee4fe1fb44a406775e85f226a56d6704d5505283d6705f48d3bb3d0a2
        • MD5 SHA1 SHA512 SSDEEP

        memory/940-27-0x0000000000400000-0x0000000000440000-memory.dmp

        memory/940-28-0x0000000000400000-0x0000000000440000-memory.dmp

        memory/940-22-0x0000000000400000-0x0000000000440000-memory.dmp

        memory/940-24-0x0000000000400000-0x0000000000440000-memory.dmp

        memory/940-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        memory/940-30-0x0000000000400000-0x0000000000440000-memory.dmp

        memory/940-18-0x0000000000400000-0x0000000000440000-memory.dmp

        memory/940-20-0x0000000000400000-0x0000000000440000-memory.dmp

        memory/2204-2-0x0000000074440000-0x0000000074B2E000-memory.dmp

        memory/2204-1-0x0000000000280000-0x000000000032E000-memory.dmp

        memory/2204-0-0x000000007444E000-0x000000007444F000-memory.dmp

        memory/2204-3-0x0000000000450000-0x0000000000466000-memory.dmp

        memory/2204-5-0x0000000004E80000-0x0000000004F02000-memory.dmp

        memory/2204-4-0x00000000006B0000-0x00000000006C6000-memory.dmp

        memory/2204-31-0x0000000074440000-0x0000000074B2E000-memory.dmp