Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-04-2024 01:14

General

  • Target

    034a3732828ad09b79a12c66bf7eee3058427808bdae8b19291fffc828ee1fbf.exe

  • Size

    609KB

  • MD5

    4ac88ef7fe497d568f8c0256627f4f28

  • SHA1

    ed66aadb1b165388e5a132f43874f385db546379

  • SHA256

    034a3732828ad09b79a12c66bf7eee3058427808bdae8b19291fffc828ee1fbf

  • SHA512

    b20a18998275e42a27aa56ff0318e2a119b00a5ffee04898e42c25524ee4abf1e68952c97236d4ecafdd143a9912d87f15e463ea3e62ac1bc028e9bbac54fbab

  • SSDEEP

    12288:IxbVNv5uSru57PQFztYF2vLRHQ36D78MmeOZWczK3rlHxsKIy:IxRV5Lru57YF+iQe8MdM0JOy

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.bonnyriggdentalsurgery.com.au
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Sages101*

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 2 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 2 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 2 IoCs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

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

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Windows security modification 2 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Maps connected drives based on registry 3 TTPs 4 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).

  • 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 27 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs
  • System policy modification 1 TTPs 1 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\034a3732828ad09b79a12c66bf7eee3058427808bdae8b19291fffc828ee1fbf.exe
    "C:\Users\Admin\AppData\Local\Temp\034a3732828ad09b79a12c66bf7eee3058427808bdae8b19291fffc828ee1fbf.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Checks computer location settings
    • Adds Run key to start application
    • Maps connected drives based on registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4508
    • 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:1248
      • 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:2896
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpC719.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1856
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:3216
      • C:\Users\Admin\AppData\Roaming\svchost.exe
        "C:\Users\Admin\AppData\Roaming\svchost.exe"
        3⤵
        • 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
        • Executes dropped EXE
        • Windows security modification
        • Checks whether UAC is enabled
        • Maps connected drives based on registry
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        • System policy modification
        PID:4372
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\svchost.exe" -Force
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3224
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
          4⤵
            PID:4532
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
            4⤵
            • Adds Run key to start application
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3160
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
            4⤵
              PID:1276

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_kp23cayf.scf.ps1
        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\Users\Admin\AppData\Local\Temp\tmpC719.tmp.bat
        Filesize

        151B

        MD5

        59fe6c00f19e23077a7923e7a896e944

        SHA1

        018116a8eab3a8c256a8474aade87c6f211a7dde

        SHA256

        b1c5740b641d7af0b87c963a6e1c28330e092559585cb300024e3c8f6aa6c03e

        SHA512

        50c3a196c4e96656e76e841c2c9ea0dcc0ad20618e0e95646b8d26a6d00e39643471d000bc69b22f4d4abbd4eac6d43164ac4271807d58cbe4c5e2c6dc1331e4

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

        609KB

        MD5

        4ac88ef7fe497d568f8c0256627f4f28

        SHA1

        ed66aadb1b165388e5a132f43874f385db546379

        SHA256

        034a3732828ad09b79a12c66bf7eee3058427808bdae8b19291fffc828ee1fbf

        SHA512

        b20a18998275e42a27aa56ff0318e2a119b00a5ffee04898e42c25524ee4abf1e68952c97236d4ecafdd143a9912d87f15e463ea3e62ac1bc028e9bbac54fbab

      • memory/3160-34-0x0000000005770000-0x00000000057D6000-memory.dmp
        Filesize

        408KB

      • memory/3160-28-0x00000000746B0000-0x0000000074E60000-memory.dmp
        Filesize

        7.7MB

      • memory/3160-42-0x0000000005760000-0x0000000005770000-memory.dmp
        Filesize

        64KB

      • memory/3160-41-0x00000000746B0000-0x0000000074E60000-memory.dmp
        Filesize

        7.7MB

      • memory/3160-40-0x0000000006F90000-0x0000000006F9A000-memory.dmp
        Filesize

        40KB

      • memory/3160-39-0x0000000006FD0000-0x0000000007062000-memory.dmp
        Filesize

        584KB

      • memory/3160-38-0x0000000006D90000-0x0000000006E2C000-memory.dmp
        Filesize

        624KB

      • memory/3160-37-0x0000000006CA0000-0x0000000006CF0000-memory.dmp
        Filesize

        320KB

      • memory/3160-33-0x0000000005760000-0x0000000005770000-memory.dmp
        Filesize

        64KB

      • memory/3160-32-0x0000000005B90000-0x0000000006134000-memory.dmp
        Filesize

        5.6MB

      • memory/3160-27-0x0000000000400000-0x0000000000442000-memory.dmp
        Filesize

        264KB

      • memory/3224-23-0x000001DB1A790000-0x000001DB1A7B2000-memory.dmp
        Filesize

        136KB

      • memory/3224-31-0x00007FFECB850000-0x00007FFECC311000-memory.dmp
        Filesize

        10.8MB

      • memory/3224-26-0x000001DB1A780000-0x000001DB1A790000-memory.dmp
        Filesize

        64KB

      • memory/3224-25-0x000001DB1A780000-0x000001DB1A790000-memory.dmp
        Filesize

        64KB

      • memory/3224-24-0x00007FFECB850000-0x00007FFECC311000-memory.dmp
        Filesize

        10.8MB

      • memory/4372-35-0x00007FFECB850000-0x00007FFECC311000-memory.dmp
        Filesize

        10.8MB

      • memory/4372-13-0x00007FFECB850000-0x00007FFECC311000-memory.dmp
        Filesize

        10.8MB

      • memory/4508-0-0x0000020BFF5A0000-0x0000020BFF5AA000-memory.dmp
        Filesize

        40KB

      • memory/4508-1-0x00007FFECBF80000-0x00007FFECCA41000-memory.dmp
        Filesize

        10.8MB

      • memory/4508-8-0x00007FFECBF80000-0x00007FFECCA41000-memory.dmp
        Filesize

        10.8MB

      • memory/4508-2-0x0000020B81970000-0x0000020B81A06000-memory.dmp
        Filesize

        600KB

      • memory/4508-3-0x0000020B9A220000-0x0000020B9A230000-memory.dmp
        Filesize

        64KB