Analysis

  • max time kernel
    95s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/09/2024, 07:45

General

  • Target
    eccd7dfeb19b4548dfef20db82d8b1e1.exe
  • Size 599KB
  • Sample240926-jlehtaybka
  • SHA256 9a9381dbc7eea48c1a098e0b4d8432dc615b4f41ed697369f22833d8ceef9e9c
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • formbook

Version
  • 4.1

Campaign
  • btrd

Decoy
  • everslane.com

  • prairieviewelectric.online

  • dszvhgd.com

  • papamuch.com

  • 8129k.vip

  • jeffreestar.gold

  • bestguestrentals.com

  • nvzhuang1.net

  • anangtoto.com

  • yxfgor.top

  • practicalpoppers.com

  • thebestanglephotography.online

  • koormm.top

  • criika.net

  • audioflow.online

  • 380747.net

  • jiuguanwang.net

  • bloxequities.com

  • v321c.com

  • sugar.monster

Signatures

  • Formbook

    Formbook is a data stealing malware which is capable of stealing data.

  • Formbook payload 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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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 2 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 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\eccd7dfeb19b4548dfef20db82d8b1e1.exe
    "C:\Users\Admin\AppData\Local\Temp\eccd7dfeb19b4548dfef20db82d8b1e1.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2568
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\eccd7dfeb19b4548dfef20db82d8b1e1.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4332
    • C:\Users\Admin\AppData\Local\Temp\eccd7dfeb19b4548dfef20db82d8b1e1.exe
      "C:\Users\Admin\AppData\Local\Temp\eccd7dfeb19b4548dfef20db82d8b1e1.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:2508

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        __PSScriptPolicyTest_40wwpgdi.cwn.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_40wwpgdi.cwn.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        memory/2508-11-0x0000000000400000-0x000000000042F000-memory.dmp

        memory/2508-63-0x0000000000F90000-0x00000000012DA000-memory.dmp

        memory/2508-14-0x0000000000F90000-0x00000000012DA000-memory.dmp

        memory/2568-8-0x00000000748A0000-0x0000000075050000-memory.dmp

        memory/2568-5-0x00000000748A0000-0x0000000075050000-memory.dmp

        memory/2568-6-0x00000000053C0000-0x00000000053D0000-memory.dmp

        memory/2568-7-0x00000000748AE000-0x00000000748AF000-memory.dmp

        memory/2568-1-0x0000000000370000-0x000000000040C000-memory.dmp

        memory/2568-9-0x0000000006710000-0x0000000006786000-memory.dmp

        memory/2568-10-0x0000000008DA0000-0x0000000008E3C000-memory.dmp

        memory/2568-0-0x00000000748AE000-0x00000000748AF000-memory.dmp

        memory/2568-13-0x00000000748A0000-0x0000000075050000-memory.dmp

        memory/2568-4-0x0000000004DF0000-0x0000000004DFA000-memory.dmp

        memory/2568-3-0x0000000004E30000-0x0000000004EC2000-memory.dmp

        memory/2568-2-0x00000000053E0000-0x0000000005984000-memory.dmp

        memory/4332-32-0x0000000005D90000-0x00000000060E4000-memory.dmp

        memory/4332-48-0x0000000074920000-0x00000000750D0000-memory.dmp

        memory/4332-17-0x0000000074920000-0x00000000750D0000-memory.dmp

        memory/4332-20-0x00000000053C0000-0x00000000053E2000-memory.dmp

        memory/4332-21-0x0000000005560000-0x00000000055C6000-memory.dmp

        memory/4332-16-0x0000000002A80000-0x0000000002AB6000-memory.dmp

        memory/4332-22-0x0000000005CC0000-0x0000000005D26000-memory.dmp

        memory/4332-18-0x0000000005690000-0x0000000005CB8000-memory.dmp

        memory/4332-33-0x0000000006390000-0x00000000063AE000-memory.dmp

        memory/4332-34-0x00000000063E0000-0x000000000642C000-memory.dmp

        memory/4332-37-0x0000000074920000-0x00000000750D0000-memory.dmp

        memory/4332-36-0x0000000070740000-0x000000007078C000-memory.dmp

        memory/4332-35-0x0000000006950000-0x0000000006982000-memory.dmp

        memory/4332-19-0x0000000074920000-0x00000000750D0000-memory.dmp

        memory/4332-47-0x00000000069A0000-0x00000000069BE000-memory.dmp

        memory/4332-49-0x0000000074920000-0x00000000750D0000-memory.dmp

        memory/4332-50-0x0000000007580000-0x0000000007623000-memory.dmp

        memory/4332-51-0x0000000007D00000-0x000000000837A000-memory.dmp

        memory/4332-52-0x00000000076C0000-0x00000000076DA000-memory.dmp

        memory/4332-53-0x0000000007730000-0x000000000773A000-memory.dmp

        memory/4332-54-0x0000000007940000-0x00000000079D6000-memory.dmp

        memory/4332-55-0x00000000078C0000-0x00000000078D1000-memory.dmp

        memory/4332-56-0x00000000078F0000-0x00000000078FE000-memory.dmp

        memory/4332-57-0x0000000007900000-0x0000000007914000-memory.dmp

        memory/4332-58-0x0000000007A00000-0x0000000007A1A000-memory.dmp

        memory/4332-59-0x00000000079E0000-0x00000000079E8000-memory.dmp

        memory/4332-62-0x0000000074920000-0x00000000750D0000-memory.dmp

        memory/4332-15-0x000000007492E000-0x000000007492F000-memory.dmp