Analysis

  • max time kernel
    148s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/09/2024, 02:24

General

  • Target
    e3982b1cbd3445eb68e177c578113fb2d35b4ed924fbdd7486841846c7a5beb5.exe
  • Size 2.0MB
  • Sample240904-cv5ysstcpl
  • SHA256 e3982b1cbd3445eb68e177c578113fb2d35b4ed924fbdd7486841846c7a5beb5
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • formbook

Version
  • 4.1

Campaign
  • kmge

Decoy
  • jia0752d.com

  • cq0jt.sbs

  • whimsicalweddingrentals.com

  • meetsex-here.life

  • hhe-crv220.com

  • bedbillionaire.com

  • soycmo.com

  • mrawkward.xyz

  • 11ramshornroad.com

  • motoyonaturals.com

  • thischicloves.com

  • gacorbet.pro

  • ihsanid.com

  • pancaketurner.com

  • santanarstore.com

  • cr3dtv.com

  • negotools.com

  • landfillequip.com

  • sejasuapropriachefe.com

  • diamant-verkopen.store

Signatures

  • Formbook

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

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Formbook payload 3 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.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 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.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 62 IoCs
  • Suspicious behavior: MapViewOfSection 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:3580
    • C:\Users\Admin\AppData\Local\Temp\e3982b1cbd3445eb68e177c578113fb2d35b4ed924fbdd7486841846c7a5beb5.exe
      "C:\Users\Admin\AppData\Local\Temp\e3982b1cbd3445eb68e177c578113fb2d35b4ed924fbdd7486841846c7a5beb5.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1912
      • C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath $env:UserProfile
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1864
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:1772
    • C:\Windows\SysWOW64\mstsc.exe
      "C:\Windows\SysWOW64\mstsc.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:728
      • C:\Windows\SysWOW64\cmd.exe
        /c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3740
      • C:\Program Files\Mozilla Firefox\Firefox.exe
        "C:\Program Files\Mozilla Firefox\Firefox.exe"
        3⤵
          PID:860

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          DB1

          • Path C:\Users\Admin\AppData\Local\Temp\DB1
          • Size 40KB
          • SHA256 42aad7886965428a941508b776a666a4450eb658cb90e80fae1e7457fc71f914
          • MD5 SHA1 SHA512 SSDEEP

          __PSScriptPolicyTest_aytzyfae.3sz.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_aytzyfae.3sz.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512

          LK3logim.jpeg

          • Path C:\Users\Admin\AppData\Roaming\LK3BNUQ2\LK3logim.jpeg
          • Size 74KB
          • SHA256 d685500b9ba9c242f55bd046ae99b35d37d6e2516dc94089d764082be7918e7d
          • MD5 SHA1 SHA512 SSDEEP

          LK3logrf.ini

          • Path C:\Users\Admin\AppData\Roaming\LK3BNUQ2\LK3logrf.ini
          • Size 40B
          • SHA256 1662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361
          • MD5 SHA1 SHA512

          LK3logrg.ini

          • Path C:\Users\Admin\AppData\Roaming\LK3BNUQ2\LK3logrg.ini
          • Size 38B
          • SHA256 75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56
          • MD5 SHA1 SHA512

          LK3logri.ini

          • Path C:\Users\Admin\AppData\Roaming\LK3BNUQ2\LK3logri.ini
          • Size 40B
          • SHA256 eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae
          • MD5 SHA1 SHA512

          LK3logrv.ini

          • Path C:\Users\Admin\AppData\Roaming\LK3BNUQ2\LK3logrv.ini
          • Size 872B
          • SHA256 ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb
          • MD5 SHA1 SHA512

          memory/728-23-0x0000000000250000-0x000000000038A000-memory.dmp

          memory/728-26-0x0000000000600000-0x000000000062F000-memory.dmp

          memory/728-25-0x0000000000250000-0x000000000038A000-memory.dmp

          memory/1772-21-0x0000000001210000-0x0000000001224000-memory.dmp

          memory/1772-20-0x0000000000400000-0x000000000042F000-memory.dmp

          memory/1772-18-0x00000000012E0000-0x000000000162A000-memory.dmp

          memory/1772-16-0x0000000000400000-0x000000000042F000-memory.dmp

          memory/1864-0-0x00007FFB1C4C3000-0x00007FFB1C4C5000-memory.dmp

          memory/1864-17-0x00007FFB1C4C0000-0x00007FFB1CF81000-memory.dmp

          memory/1864-12-0x00007FFB1C4C0000-0x00007FFB1CF81000-memory.dmp

          memory/1864-11-0x00007FFB1C4C0000-0x00007FFB1CF81000-memory.dmp

          memory/1864-2-0x000001FCF0EF0000-0x000001FCF0F12000-memory.dmp

          memory/3580-22-0x00000000087F0000-0x0000000008948000-memory.dmp

          memory/3580-46-0x00000000089D0000-0x0000000008AD3000-memory.dmp

          memory/3580-41-0x00000000087F0000-0x0000000008948000-memory.dmp