Analysis

  • max time kernel
    94s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2024 04:48

General

  • Target

    PO] G_24370-24396_SI2_S25_8658.exe

  • Size

    2.3MB

  • MD5

    fd1db3d42f8ce22b75ee45b2b2e18075

  • SHA1

    532f70a54fb672faca5fd8fbf3df4b9e33de13c4

  • SHA256

    d5e518efcccc11bc6e29f1c5b89279ce4fdab95913ddab884306cc8ad0f8e7a3

  • SHA512

    1c5bb62f28060c78c633b587a4afeed1ac0c6faead422a94a52463f5a3fb366a5489f2529b829e8d2c2e90859890404be1204bd9a9b2db7c61f46bbfcfd94e7b

  • SSDEEP

    12288:EMha6lvswwPEr52DxsnECFePAYuH5vqUq/gM7aggZM/c8ZiJwmcYS+:FU62LmDwPQvfq/gMOo/c8ZiDHS+

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Agenttesla family
  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 2 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Windows security modification 2 TTPs 3 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO] G_24370-24396_SI2_S25_8658.exe
    "C:\Users\Admin\AppData\Local\Temp\PO] G_24370-24396_SI2_S25_8658.exe"
    1⤵
    • UAC bypass
    • Windows security bypass
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Checks computer location settings
    • Windows security modification
    • Checks whether UAC is enabled
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:2160
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\PO] G_24370-24396_SI2_S25_8658.exe" -Force
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5028
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
      2⤵
        PID:4952
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:920
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"
        2⤵
          PID:4788

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3mruoeyh.lbb.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • memory/920-22-0x0000000005190000-0x00000000051F6000-memory.dmp

        Filesize

        408KB

      • memory/920-26-0x0000000006000000-0x000000000600A000-memory.dmp

        Filesize

        40KB

      • memory/920-25-0x0000000006070000-0x0000000006102000-memory.dmp

        Filesize

        584KB

      • memory/920-14-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB

      • memory/920-24-0x0000000005F80000-0x0000000005FD0000-memory.dmp

        Filesize

        320KB

      • memory/920-18-0x0000000005740000-0x0000000005CE4000-memory.dmp

        Filesize

        5.6MB

      • memory/2160-0-0x00007FF828243000-0x00007FF828245000-memory.dmp

        Filesize

        8KB

      • memory/2160-3-0x00007FF828240000-0x00007FF828D01000-memory.dmp

        Filesize

        10.8MB

      • memory/2160-1-0x00000299A9230000-0x00000299A9236000-memory.dmp

        Filesize

        24KB

      • memory/2160-2-0x00000299A9620000-0x00000299A96B2000-memory.dmp

        Filesize

        584KB

      • memory/2160-23-0x00007FF828240000-0x00007FF828D01000-memory.dmp

        Filesize

        10.8MB

      • memory/5028-12-0x000002E3FE910000-0x000002E3FE932000-memory.dmp

        Filesize

        136KB

      • memory/5028-21-0x00007FF828240000-0x00007FF828D01000-memory.dmp

        Filesize

        10.8MB

      • memory/5028-5-0x00007FF828240000-0x00007FF828D01000-memory.dmp

        Filesize

        10.8MB

      • memory/5028-6-0x00007FF828240000-0x00007FF828D01000-memory.dmp

        Filesize

        10.8MB

      • memory/5028-4-0x00007FF828240000-0x00007FF828D01000-memory.dmp

        Filesize

        10.8MB