Analysis

  • max time kernel
    137s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/02/2024, 01:24

General

  • Target
    RFQ97-64296.exe
  • Size 731KB
  • Sample240202-bsczkachek
  • SHA256 cf11dde62aca5b5ad168ee3c0ad75e7df108770d0232a5c05cc88027a17a7e99
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    mail.dinstelec.com

  • Port

    587

  • Password

    Gabriela2018

Extracted

Family
  • agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • 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.

  • 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 WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\RFQ97-64296.exe
    "C:\Users\Admin\AppData\Local\Temp\RFQ97-64296.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4908
    • 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\RFQ97-64296.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4704
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Gfjrqn.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2328
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\Gfjrqn" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8410.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1984
    • C:\Users\Admin\AppData\Local\Temp\RFQ97-64296.exe
      "C:\Users\Admin\AppData\Local\Temp\RFQ97-64296.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1960

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        powershell.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
        • Size 2KB
        • SHA256 6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
        • MD5 SHA1 SHA512

        __PSScriptPolicyTest_qbbdj5y3.msi.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qbbdj5y3.msi.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        tmp8410.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmp8410.tmp
        • Size 1KB
        • SHA256 4a33f158c6a106b0af826e5c320bb9c8945a00d13d101d3a16cc72dab98f0592
        • MD5 SHA1 SHA512

        memory/1960-100-0x0000000005320000-0x0000000005330000-memory.dmp

        memory/1960-99-0x0000000074AC0000-0x0000000075270000-memory.dmp

        memory/1960-31-0x0000000005430000-0x0000000005496000-memory.dmp

        memory/1960-28-0x0000000074AC0000-0x0000000075270000-memory.dmp

        memory/1960-88-0x00000000064C0000-0x0000000006510000-memory.dmp

        memory/1960-26-0x0000000000400000-0x0000000000440000-memory.dmp

        memory/1960-43-0x0000000005320000-0x0000000005330000-memory.dmp

        memory/2328-58-0x000000007FA50000-0x000000007FA60000-memory.dmp

        memory/2328-84-0x0000000007430000-0x000000000744A000-memory.dmp

        memory/2328-71-0x0000000070D50000-0x0000000070D9C000-memory.dmp

        memory/2328-55-0x0000000004C00000-0x0000000004C10000-memory.dmp

        memory/2328-54-0x00000000066A0000-0x00000000066EC000-memory.dmp

        memory/2328-53-0x0000000006120000-0x000000000613E000-memory.dmp

        memory/2328-49-0x0000000005B00000-0x0000000005E54000-memory.dmp

        memory/2328-60-0x0000000007300000-0x0000000007332000-memory.dmp

        memory/2328-22-0x0000000074AC0000-0x0000000075270000-memory.dmp

        memory/2328-23-0x0000000004C00000-0x0000000004C10000-memory.dmp

        memory/2328-24-0x0000000004C00000-0x0000000004C10000-memory.dmp

        memory/2328-86-0x00000000076B0000-0x0000000007746000-memory.dmp

        memory/2328-87-0x0000000007630000-0x0000000007641000-memory.dmp

        memory/2328-91-0x0000000007770000-0x000000000778A000-memory.dmp

        memory/2328-97-0x0000000074AC0000-0x0000000075270000-memory.dmp

        memory/4704-19-0x0000000002600000-0x0000000002610000-memory.dmp

        memory/4704-82-0x00000000070A0000-0x0000000007143000-memory.dmp

        memory/4704-98-0x0000000074AC0000-0x0000000075270000-memory.dmp

        memory/4704-29-0x0000000005030000-0x0000000005052000-memory.dmp

        memory/4704-21-0x0000000005180000-0x00000000057A8000-memory.dmp

        memory/4704-20-0x0000000002600000-0x0000000002610000-memory.dmp

        memory/4704-16-0x0000000002540000-0x0000000002576000-memory.dmp

        memory/4704-92-0x00000000074E0000-0x00000000074E8000-memory.dmp

        memory/4704-17-0x0000000074AC0000-0x0000000075270000-memory.dmp

        memory/4704-56-0x0000000002600000-0x0000000002610000-memory.dmp

        memory/4704-57-0x0000000074AC0000-0x0000000075270000-memory.dmp

        memory/4704-90-0x0000000007400000-0x0000000007414000-memory.dmp

        memory/4704-59-0x000000007F3A0000-0x000000007F3B0000-memory.dmp

        memory/4704-61-0x0000000070D50000-0x0000000070D9C000-memory.dmp

        memory/4704-89-0x00000000073F0000-0x00000000073FE000-memory.dmp

        memory/4704-85-0x0000000007230000-0x000000000723A000-memory.dmp

        memory/4704-77-0x0000000006430000-0x000000000644E000-memory.dmp

        memory/4704-42-0x00000000057B0000-0x0000000005816000-memory.dmp

        memory/4704-83-0x0000000007800000-0x0000000007E7A000-memory.dmp

        memory/4908-12-0x000000000AF40000-0x000000000AFDC000-memory.dmp

        memory/4908-2-0x0000000005AA0000-0x0000000006044000-memory.dmp

        memory/4908-8-0x0000000005460000-0x0000000005470000-memory.dmp

        memory/4908-7-0x0000000074AC0000-0x0000000075270000-memory.dmp

        memory/4908-6-0x0000000008160000-0x000000000817C000-memory.dmp

        memory/4908-11-0x0000000008780000-0x0000000008802000-memory.dmp

        memory/4908-0-0x0000000074AC0000-0x0000000075270000-memory.dmp

        memory/4908-9-0x0000000008410000-0x000000000841E000-memory.dmp

        memory/4908-10-0x0000000008420000-0x0000000008434000-memory.dmp

        memory/4908-4-0x0000000005460000-0x0000000005470000-memory.dmp

        memory/4908-3-0x00000000054F0000-0x0000000005582000-memory.dmp

        memory/4908-36-0x0000000074AC0000-0x0000000075270000-memory.dmp

        memory/4908-5-0x0000000005490000-0x000000000549A000-memory.dmp

        memory/4908-1-0x00000000009D0000-0x0000000000A8E000-memory.dmp