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Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/03/2024, 18:38

General

  • Target

    Ziraat Bankası Swift Mesajıl᠎m᠎t᠎h᠎..exe

  • Size

    611KB

  • MD5

    bb890594548df51e5957ca2445cd7fb8

  • SHA1

    7aabf17acfff6e33ef68bbccea7b266a48205fff

  • SHA256

    ce021aaca1ac091165c6bd6d9b27d41c0994d308f39bce54a5d7e59ba76a421e

  • SHA512

    feaa88044792da5886b7fb4cf7eb4d67ca7be07b2376ae0e5d980be69c873f52db45eef9ab1e4b97f6dc9c1d99350fbbc579462bad7cb5bed49cbdb9752cd022

  • SSDEEP

    12288:4SMpPbU8sOUVVhUF+i1c/OGNX+jkniNzXNDu8Z2RjbY8rk45az:4/pPbrUVo+sGNXPiN8W25YqtE

Malware Config

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.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 25 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\Ziraat Bankası Swift Mesajıl᠎m᠎t᠎h᠎..exe
    "C:\Users\Admin\AppData\Local\Temp\Ziraat Bankası Swift Mesajıl᠎m᠎t᠎h᠎..exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5096
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1796
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
        3⤵
        • Creates scheduled task(s)
        PID:1192
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp3E70.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2212
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:8
      • C:\Users\Admin\AppData\Roaming\svchost.exe
        "C:\Users\Admin\AppData\Roaming\svchost.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4728
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe"
          4⤵
            PID:916
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
            4⤵
              PID:4248
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
              4⤵
                PID:3536
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
                "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
                4⤵
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:4040
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
                "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
                4⤵
                  PID:932

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\tmp3E70.tmp.bat

            Filesize

            151B

            MD5

            30c4a3348c3ed4f61a827a449a57da5f

            SHA1

            99942b30bae084dbddf8989c2221cda63ebdbdda

            SHA256

            e5faec50b0c3331c6b7383c56b0c06b8783b38500292b8b1b913bc5275f36eb1

            SHA512

            6a65b0e209e2ac583045d7ae97a1cfd76cc9b67b7c9c56aaa5a071f5e984796c5ffc789fa4fcfb5852b0a8a0d28771da076be0d05397d4d3ee8bc5c5a72b384b

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

            Filesize

            611KB

            MD5

            bb890594548df51e5957ca2445cd7fb8

            SHA1

            7aabf17acfff6e33ef68bbccea7b266a48205fff

            SHA256

            ce021aaca1ac091165c6bd6d9b27d41c0994d308f39bce54a5d7e59ba76a421e

            SHA512

            feaa88044792da5886b7fb4cf7eb4d67ca7be07b2376ae0e5d980be69c873f52db45eef9ab1e4b97f6dc9c1d99350fbbc579462bad7cb5bed49cbdb9752cd022

          • memory/4040-18-0x0000000005A40000-0x0000000005AA6000-memory.dmp

            Filesize

            408KB

          • memory/4040-21-0x0000000006A10000-0x0000000006AA2000-memory.dmp

            Filesize

            584KB

          • memory/4040-24-0x0000000005840000-0x0000000005850000-memory.dmp

            Filesize

            64KB

          • memory/4040-23-0x0000000074CE0000-0x0000000075490000-memory.dmp

            Filesize

            7.7MB

          • memory/4040-22-0x00000000069A0000-0x00000000069AA000-memory.dmp

            Filesize

            40KB

          • memory/4040-20-0x0000000006920000-0x0000000006970000-memory.dmp

            Filesize

            320KB

          • memory/4040-14-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB

          • memory/4040-15-0x0000000074CE0000-0x0000000075490000-memory.dmp

            Filesize

            7.7MB

          • memory/4040-16-0x0000000005E40000-0x00000000063E4000-memory.dmp

            Filesize

            5.6MB

          • memory/4040-17-0x0000000005840000-0x0000000005850000-memory.dmp

            Filesize

            64KB

          • memory/4728-19-0x00007FFD763E0000-0x00007FFD76EA1000-memory.dmp

            Filesize

            10.8MB

          • memory/4728-13-0x00007FFD763E0000-0x00007FFD76EA1000-memory.dmp

            Filesize

            10.8MB

          • memory/5096-0-0x000001DCD32D0000-0x000001DCD32DC000-memory.dmp

            Filesize

            48KB

          • memory/5096-3-0x000001DCEDB40000-0x000001DCEDBD6000-memory.dmp

            Filesize

            600KB

          • memory/5096-1-0x00007FFD768A0000-0x00007FFD77361000-memory.dmp

            Filesize

            10.8MB

          • memory/5096-2-0x000001DCED840000-0x000001DCED850000-memory.dmp

            Filesize

            64KB

          • memory/5096-8-0x00007FFD768A0000-0x00007FFD77361000-memory.dmp

            Filesize

            10.8MB