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Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/12/2024, 01:07

General

  • Target

    bf195309d315f72cba80c7edd344a27d4950a7e54d883c4b9546bb69b870107c.exe

  • Size

    637KB

  • MD5

    5888e0f00806e549fa181e11614b29b6

  • SHA1

    c71c74911cb2d2ab8a535be7697c7f02336d67d1

  • SHA256

    bf195309d315f72cba80c7edd344a27d4950a7e54d883c4b9546bb69b870107c

  • SHA512

    287a004cd34e505705970bc161c9eee67ebe6e1213708c3b64cb6c95f610e599f6b76b4aa1b6d5bbeaf834410cfebc0d208395c8027ca732c37c24a5970e2263

  • SSDEEP

    12288:oAn15OllT6k2neIurJxvBWN8LZwOItwFgaDEk/J0Z2s+5eCtqyt/RxyRbi0x74:vIiDudxv4NEZHjdaZ2s+RPpxyRbi0t4

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot7238823286:AAHUVsvFbx3L7yfxJB-f5BMs6WFzLbndzzw/

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 3 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bf195309d315f72cba80c7edd344a27d4950a7e54d883c4b9546bb69b870107c.exe
    "C:\Users\Admin\AppData\Local\Temp\bf195309d315f72cba80c7edd344a27d4950a7e54d883c4b9546bb69b870107c.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 AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:1544
    • 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\bf195309d315f72cba80c7edd344a27d4950a7e54d883c4b9546bb69b870107c.exe" -Force
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4604
    • 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:2720
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"
      2⤵
        PID:3156

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wfn24msn.rsv.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/1544-3-0x000001FAF4420000-0x000001FAF44B4000-memory.dmp

      Filesize

      592KB

    • memory/1544-2-0x00007FFD6D400000-0x00007FFD6DEC1000-memory.dmp

      Filesize

      10.8MB

    • memory/1544-25-0x00007FFD6D400000-0x00007FFD6DEC1000-memory.dmp

      Filesize

      10.8MB

    • memory/1544-24-0x000001FAF3790000-0x000001FAF3939000-memory.dmp

      Filesize

      1.7MB

    • memory/1544-0-0x00007FFD6D403000-0x00007FFD6D405000-memory.dmp

      Filesize

      8KB

    • memory/1544-1-0x000001FAF11B0000-0x000001FAF11C4000-memory.dmp

      Filesize

      80KB

    • memory/2720-28-0x00000000061F0000-0x00000000061FA000-memory.dmp

      Filesize

      40KB

    • memory/2720-29-0x00000000750CE000-0x00000000750CF000-memory.dmp

      Filesize

      4KB

    • memory/2720-12-0x00000000750CE000-0x00000000750CF000-memory.dmp

      Filesize

      4KB

    • memory/2720-27-0x0000000006220000-0x00000000062B2000-memory.dmp

      Filesize

      584KB

    • memory/2720-19-0x0000000005840000-0x0000000005DE4000-memory.dmp

      Filesize

      5.6MB

    • memory/2720-20-0x0000000005210000-0x0000000005276000-memory.dmp

      Filesize

      408KB

    • memory/2720-26-0x00000000060F0000-0x0000000006140000-memory.dmp

      Filesize

      320KB

    • memory/2720-4-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/4604-11-0x00007FFD6D400000-0x00007FFD6DEC1000-memory.dmp

      Filesize

      10.8MB

    • memory/4604-23-0x00007FFD6D400000-0x00007FFD6DEC1000-memory.dmp

      Filesize

      10.8MB

    • memory/4604-10-0x000001B757570000-0x000001B757592000-memory.dmp

      Filesize

      136KB

    • memory/4604-13-0x000001B7575B0000-0x000001B7575C0000-memory.dmp

      Filesize

      64KB

    • memory/4604-14-0x000001B7575B0000-0x000001B7575C0000-memory.dmp

      Filesize

      64KB