Analysis

  • max time kernel
    117s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    10-11-2024 01:38

General

  • Target

    be5538ff87a5b5219e063a8de6a59efae7b953fe2a3b2e6035bccd321d3d5095.exe

  • Size

    2.3MB

  • MD5

    839127291c05e0fe8f2db4b678397ec0

  • SHA1

    9a7e243162ad7947d0625a47e20fe26ebc82f0fc

  • SHA256

    be5538ff87a5b5219e063a8de6a59efae7b953fe2a3b2e6035bccd321d3d5095

  • SHA512

    7a1503b5f498050d2545195da2eaf41e8919c2f15dc9680cb51b7a502029d934fbbb3be9fb70d352239d88d36ff14b020cc5264dd6b24be0c9d2c844041b62cb

  • SSDEEP

    12288:WtFghMFvcxxO1Dqm+eO+Crln1lXaPZrBDNCIDvYoGbSNF:2FghKvExAO5rlnLcDC0GbsF

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
  • 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 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 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\be5538ff87a5b5219e063a8de6a59efae7b953fe2a3b2e6035bccd321d3d5095.exe
    "C:\Users\Admin\AppData\Local\Temp\be5538ff87a5b5219e063a8de6a59efae7b953fe2a3b2e6035bccd321d3d5095.exe"
    1⤵
    • UAC bypass
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • 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:2424
    • 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\be5538ff87a5b5219e063a8de6a59efae7b953fe2a3b2e6035bccd321d3d5095.exe" -Force
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2748
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2764
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2424 -s 796
      2⤵
        PID:2596

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2424-1-0x0000000000840000-0x0000000000872000-memory.dmp

      Filesize

      200KB

    • memory/2424-2-0x00000000003C0000-0x0000000000452000-memory.dmp

      Filesize

      584KB

    • memory/2424-3-0x000007FEF5170000-0x000007FEF5B5C000-memory.dmp

      Filesize

      9.9MB

    • memory/2424-24-0x000007FEF5170000-0x000007FEF5B5C000-memory.dmp

      Filesize

      9.9MB

    • memory/2424-0-0x000007FEF5173000-0x000007FEF5174000-memory.dmp

      Filesize

      4KB

    • memory/2748-22-0x000000001B6E0000-0x000000001B9C2000-memory.dmp

      Filesize

      2.9MB

    • memory/2748-23-0x0000000001E70000-0x0000000001E78000-memory.dmp

      Filesize

      32KB

    • memory/2764-13-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2764-8-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2764-21-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2764-19-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2764-4-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2764-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2764-10-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2764-6-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB