Analysis

  • max time kernel
    139s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-en-20211014
  • submitted
    19-10-2021 10:00

General

  • Target

    MV MINSCO TBN - Ship particulars.exe

  • Size

    770KB

  • MD5

    545eaa55c962df648708bb0bb01bcb28

  • SHA1

    39e0c699f9bd668dc65561aef01451deeb41b073

  • SHA256

    138e666baba119aed949d7064ded4f2ddafaa85e95b09bbd5c4ed7d2b77ac9ef

  • SHA512

    4892171284b009dc58a0ea5a781006e52c1dc729e924f386749336b9e56880ecdf6f67e43bee9c8f26b345cfcaab4b53305cd78f33a04d1b3d6016db4a2684cb

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.penavico--cz.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Fq$L%J((!6

Signatures

  • AgentTesla

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

  • AgentTesla Payload 10 IoCs
  • Executes dropped EXE 4 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
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 59 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\MV MINSCO TBN - Ship particulars.exe
    "C:\Users\Admin\AppData\Local\Temp\MV MINSCO TBN - Ship particulars.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1700
    • C:\Users\Admin\AppData\Local\Temp\MV MINSCO TBN - Ship particulars.exe
      "C:\Users\Admin\AppData\Local\Temp\MV MINSCO TBN - Ship particulars.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:432
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /sc minute /mo 1 /tn "Nano" /tr "'C:\Users\Admin\AppData\Roaming\rb57\rb57.exe'" /f
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:692
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn "Nano" /tr "'C:\Users\Admin\AppData\Roaming\rb57\rb57.exe'" /f
        3⤵
        • Creates scheduled task(s)
        PID:1932
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\MV MINSCO TBN - Ship particulars.exe" "C:\Users\Admin\AppData\Roaming\rb57\rb57.exe"
      2⤵
        PID:1688
    • C:\Windows\system32\taskeng.exe
      taskeng.exe {8B36F1A6-A567-4D84-AF98-8A0F14625A30} S-1-5-21-2955169046-2371869340-1800780948-1000:UKNHJUQT\Admin:Interactive:[1]
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:992
      • C:\Users\Admin\AppData\Roaming\rb57\rb57.exe
        C:\Users\Admin\AppData\Roaming\rb57\rb57.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1392
        • C:\Users\Admin\AppData\Roaming\rb57\rb57.exe
          "C:\Users\Admin\AppData\Roaming\rb57\rb57.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1676
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c schtasks /create /sc minute /mo 1 /tn "Nano" /tr "'C:\Users\Admin\AppData\Roaming\rb57\rb57.exe'" /f
          3⤵
            PID:1712
        • C:\Users\Admin\AppData\Roaming\rb57\rb57.exe
          C:\Users\Admin\AppData\Roaming\rb57\rb57.exe
          2⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1068
          • C:\Users\Admin\AppData\Roaming\rb57\rb57.exe
            "C:\Users\Admin\AppData\Roaming\rb57\rb57.exe"
            3⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:320
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /c schtasks /create /sc minute /mo 1 /tn "Nano" /tr "'C:\Users\Admin\AppData\Roaming\rb57\rb57.exe'" /f
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:1668
            • C:\Windows\SysWOW64\schtasks.exe
              schtasks /create /sc minute /mo 1 /tn "Nano" /tr "'C:\Users\Admin\AppData\Roaming\rb57\rb57.exe'" /f
              4⤵
              • Creates scheduled task(s)
              PID:1792
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Roaming\rb57\rb57.exe" "C:\Users\Admin\AppData\Roaming\rb57\rb57.exe"
            3⤵
              PID:1836

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Roaming\rb57\rb57.exe

          MD5

          545eaa55c962df648708bb0bb01bcb28

          SHA1

          39e0c699f9bd668dc65561aef01451deeb41b073

          SHA256

          138e666baba119aed949d7064ded4f2ddafaa85e95b09bbd5c4ed7d2b77ac9ef

          SHA512

          4892171284b009dc58a0ea5a781006e52c1dc729e924f386749336b9e56880ecdf6f67e43bee9c8f26b345cfcaab4b53305cd78f33a04d1b3d6016db4a2684cb

        • C:\Users\Admin\AppData\Roaming\rb57\rb57.exe

          MD5

          545eaa55c962df648708bb0bb01bcb28

          SHA1

          39e0c699f9bd668dc65561aef01451deeb41b073

          SHA256

          138e666baba119aed949d7064ded4f2ddafaa85e95b09bbd5c4ed7d2b77ac9ef

          SHA512

          4892171284b009dc58a0ea5a781006e52c1dc729e924f386749336b9e56880ecdf6f67e43bee9c8f26b345cfcaab4b53305cd78f33a04d1b3d6016db4a2684cb

        • C:\Users\Admin\AppData\Roaming\rb57\rb57.exe

          MD5

          545eaa55c962df648708bb0bb01bcb28

          SHA1

          39e0c699f9bd668dc65561aef01451deeb41b073

          SHA256

          138e666baba119aed949d7064ded4f2ddafaa85e95b09bbd5c4ed7d2b77ac9ef

          SHA512

          4892171284b009dc58a0ea5a781006e52c1dc729e924f386749336b9e56880ecdf6f67e43bee9c8f26b345cfcaab4b53305cd78f33a04d1b3d6016db4a2684cb

        • C:\Users\Admin\AppData\Roaming\rb57\rb57.exe

          MD5

          545eaa55c962df648708bb0bb01bcb28

          SHA1

          39e0c699f9bd668dc65561aef01451deeb41b073

          SHA256

          138e666baba119aed949d7064ded4f2ddafaa85e95b09bbd5c4ed7d2b77ac9ef

          SHA512

          4892171284b009dc58a0ea5a781006e52c1dc729e924f386749336b9e56880ecdf6f67e43bee9c8f26b345cfcaab4b53305cd78f33a04d1b3d6016db4a2684cb

        • C:\Users\Admin\AppData\Roaming\rb57\rb57.exe

          MD5

          545eaa55c962df648708bb0bb01bcb28

          SHA1

          39e0c699f9bd668dc65561aef01451deeb41b073

          SHA256

          138e666baba119aed949d7064ded4f2ddafaa85e95b09bbd5c4ed7d2b77ac9ef

          SHA512

          4892171284b009dc58a0ea5a781006e52c1dc729e924f386749336b9e56880ecdf6f67e43bee9c8f26b345cfcaab4b53305cd78f33a04d1b3d6016db4a2684cb

        • memory/320-110-0x00000000049A0000-0x00000000049A1000-memory.dmp

          Filesize

          4KB

        • memory/320-103-0x0000000000436A8E-mapping.dmp

        • memory/432-61-0x0000000000080000-0x00000000000BC000-memory.dmp

          Filesize

          240KB

        • memory/432-67-0x0000000000080000-0x00000000000BC000-memory.dmp

          Filesize

          240KB

        • memory/432-70-0x0000000000080000-0x00000000000BC000-memory.dmp

          Filesize

          240KB

        • memory/432-71-0x0000000000080000-0x0000000000082000-memory.dmp

          Filesize

          8KB

        • memory/432-73-0x00000000004A0000-0x00000000004A1000-memory.dmp

          Filesize

          4KB

        • memory/432-64-0x0000000000080000-0x00000000000BC000-memory.dmp

          Filesize

          240KB

        • memory/432-63-0x0000000000436A8E-mapping.dmp

        • memory/432-60-0x0000000000080000-0x00000000000BC000-memory.dmp

          Filesize

          240KB

        • memory/432-59-0x0000000000080000-0x00000000000BC000-memory.dmp

          Filesize

          240KB

        • memory/432-58-0x0000000000080000-0x00000000000BC000-memory.dmp

          Filesize

          240KB

        • memory/692-74-0x0000000000000000-mapping.dmp

        • memory/1068-97-0x0000000004E80000-0x0000000004E81000-memory.dmp

          Filesize

          4KB

        • memory/1068-93-0x0000000000000000-mapping.dmp

        • memory/1392-78-0x0000000000000000-mapping.dmp

        • memory/1392-82-0x0000000004C40000-0x0000000004C41000-memory.dmp

          Filesize

          4KB

        • memory/1392-80-0x0000000000D10000-0x0000000000D11000-memory.dmp

          Filesize

          4KB

        • memory/1668-105-0x0000000000000000-mapping.dmp

        • memory/1676-92-0x00000000045B0000-0x00000000045B1000-memory.dmp

          Filesize

          4KB

        • memory/1676-88-0x0000000000436A8E-mapping.dmp

        • memory/1676-90-0x0000000000400000-0x000000000043C000-memory.dmp

          Filesize

          240KB

        • memory/1676-87-0x0000000000400000-0x000000000043C000-memory.dmp

          Filesize

          240KB

        • memory/1688-75-0x0000000000000000-mapping.dmp

        • memory/1700-55-0x00000000012B0000-0x00000000012B1000-memory.dmp

          Filesize

          4KB

        • memory/1700-57-0x0000000000210000-0x0000000000211000-memory.dmp

          Filesize

          4KB

        • memory/1792-108-0x0000000000000000-mapping.dmp

        • memory/1836-106-0x0000000000000000-mapping.dmp

        • memory/1932-76-0x0000000000000000-mapping.dmp