Analysis

  • max time kernel
    119s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240319-en
  • resource tags

    arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system
  • submitted
    30-03-2024 01:24

General

  • Target

    ce021aaca1ac091165c6bd6d9b27d41c0994d308f39bce54a5d7e59ba76a421e.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.

  • Detect packed .NET executables. Mostly AgentTeslaV4. 5 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 5 IoCs
  • Detects executables packed with or use KoiVM 1 IoCs
  • Detects executables referencing Windows vault credential objects. Observed in infostealers 5 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 5 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 5 IoCs
  • Detects executables referencing many file transfer clients. Observed in information stealers 5 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 36 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\ce021aaca1ac091165c6bd6d9b27d41c0994d308f39bce54a5d7e59ba76a421e.exe
    "C:\Users\Admin\AppData\Local\Temp\ce021aaca1ac091165c6bd6d9b27d41c0994d308f39bce54a5d7e59ba76a421e.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2188
    • 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:2812
      • 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:2668
    • C:\Windows\system32\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp5409.tmp.bat""
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2528
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:2536
      • 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:2684
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe"
          4⤵
            PID:2404
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2676
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
            4⤵
              PID:2500

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\tmp5409.tmp.bat

        Filesize

        151B

        MD5

        e5037890e183691e57b00dde78d3054a

        SHA1

        3a015f2423945ad77bfbd1760402d42bcfd6fdd2

        SHA256

        44030bfa3f3fbf505a1f0ad0281794c596c745bf1a6c607a6f46c500f83eafc9

        SHA512

        06ad9aa5605e428aecb1ddd29539487e29366f4bcdf842ed3f547f05b744f805bb79d13d8afbfc66224021a2690539fa60423ec85f658e97ec846fcf00abf9da

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

        Filesize

        611KB

        MD5

        bb890594548df51e5957ca2445cd7fb8

        SHA1

        7aabf17acfff6e33ef68bbccea7b266a48205fff

        SHA256

        ce021aaca1ac091165c6bd6d9b27d41c0994d308f39bce54a5d7e59ba76a421e

        SHA512

        feaa88044792da5886b7fb4cf7eb4d67ca7be07b2376ae0e5d980be69c873f52db45eef9ab1e4b97f6dc9c1d99350fbbc579462bad7cb5bed49cbdb9752cd022

      • memory/2188-0-0x0000000000180000-0x000000000018C000-memory.dmp

        Filesize

        48KB

      • memory/2188-1-0x000007FEF5F40000-0x000007FEF692C000-memory.dmp

        Filesize

        9.9MB

      • memory/2188-2-0x000000001B160000-0x000000001B1E0000-memory.dmp

        Filesize

        512KB

      • memory/2188-3-0x000000001A5A0000-0x000000001A636000-memory.dmp

        Filesize

        600KB

      • memory/2188-13-0x000007FEF5F40000-0x000007FEF692C000-memory.dmp

        Filesize

        9.9MB

      • memory/2404-21-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB

      • memory/2404-23-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB

      • memory/2404-27-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB

      • memory/2404-25-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB

      • memory/2676-37-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2676-38-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB

      • memory/2676-41-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB

      • memory/2676-43-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB

      • memory/2676-44-0x0000000074CA0000-0x000000007538E000-memory.dmp

        Filesize

        6.9MB

      • memory/2676-45-0x0000000074CA0000-0x000000007538E000-memory.dmp

        Filesize

        6.9MB

      • memory/2676-46-0x0000000004890000-0x00000000048D0000-memory.dmp

        Filesize

        256KB

      • memory/2684-18-0x0000000000170000-0x000000000017C000-memory.dmp

        Filesize

        48KB

      • memory/2684-20-0x0000000000290000-0x0000000000310000-memory.dmp

        Filesize

        512KB

      • memory/2684-19-0x000007FEF5550000-0x000007FEF5F3C000-memory.dmp

        Filesize

        9.9MB

      • memory/2684-40-0x000007FEF5550000-0x000007FEF5F3C000-memory.dmp

        Filesize

        9.9MB