Analysis

  • max time kernel
    42s
  • max time network
    51s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/06/2024, 01:48

General

  • Target
    RFQ..exe
  • Size 913KB
  • Sample240614-b8llmsvbjp
  • SHA256 18e93e86d45bf8c393d71e183bfcd26ca971afea3e868169006d69038ed626be
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    ftp

  • Host

    ftp://ftp.skitz.com.ng

  • Port

    21

  • Password

    Kosyano1@

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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Looks up external IP address via web service 2 IoCs

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

  • 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 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\RFQ..exe
    "C:\Users\Admin\AppData\Local\Temp\RFQ..exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2060
    • 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\RFQ..exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1872
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\qClpySdresjj.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1936
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qClpySdresjj" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8666.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2172
    • C:\Users\Admin\AppData\Local\Temp\RFQ..exe
      "C:\Users\Admin\AppData\Local\Temp\RFQ..exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2904

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        __PSScriptPolicyTest_cq3efuj0.eeu.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cq3efuj0.eeu.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        tmp8666.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmp8666.tmp
        • Size 1KB
        • SHA256 7ecf9e7d2cb44b2805369e14c3cac1931b41b8474a5d70b0d27d7be09109af4a
        • MD5 SHA1 SHA512

        memory/1872-15-0x0000000074B40000-0x00000000752F0000-memory.dmp

        memory/1872-19-0x0000000005590000-0x00000000055B2000-memory.dmp

        memory/1872-83-0x0000000074B40000-0x00000000752F0000-memory.dmp

        memory/1872-79-0x0000000007BC0000-0x0000000007BDA000-memory.dmp

        memory/1872-80-0x0000000007BA0000-0x0000000007BA8000-memory.dmp

        memory/1872-78-0x0000000007AC0000-0x0000000007AD4000-memory.dmp

        memory/1872-76-0x0000000007A80000-0x0000000007A91000-memory.dmp

        memory/1872-75-0x0000000007B00000-0x0000000007B96000-memory.dmp

        memory/1872-14-0x0000000002C60000-0x0000000002C96000-memory.dmp

        memory/1872-74-0x00000000078F0000-0x00000000078FA000-memory.dmp

        memory/1872-16-0x0000000005910000-0x0000000005F38000-memory.dmp

        memory/1872-17-0x0000000074B40000-0x00000000752F0000-memory.dmp

        memory/1872-72-0x0000000007EC0000-0x000000000853A000-memory.dmp

        memory/1872-22-0x0000000005F40000-0x0000000005FA6000-memory.dmp

        memory/1872-21-0x00000000057B0000-0x0000000005816000-memory.dmp

        memory/1872-33-0x0000000005FB0000-0x0000000006304000-memory.dmp

        memory/1872-73-0x0000000007880000-0x000000000789A000-memory.dmp

        memory/1872-61-0x0000000007750000-0x00000000077F3000-memory.dmp

        memory/1872-60-0x0000000007730000-0x000000000774E000-memory.dmp

        memory/1872-50-0x0000000071210000-0x000000007125C000-memory.dmp

        memory/1872-49-0x00000000076F0000-0x0000000007722000-memory.dmp

        memory/1872-48-0x0000000006590000-0x00000000065DC000-memory.dmp

        memory/1872-47-0x0000000006560000-0x000000000657E000-memory.dmp

        memory/1936-77-0x0000000007CE0000-0x0000000007CEE000-memory.dmp

        memory/1936-62-0x0000000071210000-0x000000007125C000-memory.dmp

        memory/1936-84-0x0000000074B40000-0x00000000752F0000-memory.dmp

        memory/1936-43-0x0000000074B40000-0x00000000752F0000-memory.dmp

        memory/1936-32-0x0000000074B40000-0x00000000752F0000-memory.dmp

        memory/1936-18-0x0000000074B40000-0x00000000752F0000-memory.dmp

        memory/2060-7-0x0000000007B00000-0x0000000007B10000-memory.dmp

        memory/2060-1-0x0000000000920000-0x0000000000A06000-memory.dmp

        memory/2060-9-0x00000000065C0000-0x000000000665C000-memory.dmp

        memory/2060-2-0x0000000007E20000-0x00000000083C4000-memory.dmp

        memory/2060-0-0x0000000074B4E000-0x0000000074B4F000-memory.dmp

        memory/2060-8-0x000000000A5A0000-0x000000000A624000-memory.dmp

        memory/2060-4-0x0000000074B40000-0x00000000752F0000-memory.dmp

        memory/2060-6-0x0000000007BA0000-0x0000000007BBA000-memory.dmp

        memory/2060-5-0x0000000004EC0000-0x0000000004ECA000-memory.dmp

        memory/2060-3-0x0000000007910000-0x00000000079A2000-memory.dmp

        memory/2060-46-0x0000000074B40000-0x00000000752F0000-memory.dmp

        memory/2904-44-0x0000000000400000-0x0000000000442000-memory.dmp

        memory/2904-85-0x0000000006CF0000-0x0000000006D40000-memory.dmp