Analysis

  • max time kernel
    133s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-05-2024 01:46

General

  • Target

    f23baba313fea263a91462230af31755b31c40ec40e79b39b855712599246339.exe

  • Size

    668KB

  • MD5

    65c8dd7a47ca0eacc8027671c6c0891c

  • SHA1

    21e633d91ec91b2291edeb3af68eae787589bf61

  • SHA256

    f23baba313fea263a91462230af31755b31c40ec40e79b39b855712599246339

  • SHA512

    6523c5db90a8c45224d83748a2a25f3f86025cb000989afa609d705d450f63c16e2f7fae46f398a2ebcdb479a5ca8e9486094776cce1902be8bc2e1e627ce772

  • SSDEEP

    12288:6C7UWaSA6GC+iWMGu6t7aoTSyyPjiU0orYItTP9lEQhOAuKpApGdTkJvoFl7xC+C:eWaX7C+iju7aoCjb0oEIXGQbuK2JMxCR

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    cozuns.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Ku;_MUOVC3;E

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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 WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f23baba313fea263a91462230af31755b31c40ec40e79b39b855712599246339.exe
    "C:\Users\Admin\AppData\Local\Temp\f23baba313fea263a91462230af31755b31c40ec40e79b39b855712599246339.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1772
    • 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\f23baba313fea263a91462230af31755b31c40ec40e79b39b855712599246339.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3644
    • C:\Users\Admin\AppData\Local\Temp\f23baba313fea263a91462230af31755b31c40ec40e79b39b855712599246339.exe
      "C:\Users\Admin\AppData\Local\Temp\f23baba313fea263a91462230af31755b31c40ec40e79b39b855712599246339.exe"
      2⤵
        PID:1652
      • C:\Users\Admin\AppData\Local\Temp\f23baba313fea263a91462230af31755b31c40ec40e79b39b855712599246339.exe
        "C:\Users\Admin\AppData\Local\Temp\f23baba313fea263a91462230af31755b31c40ec40e79b39b855712599246339.exe"
        2⤵
          PID:5116
        • C:\Users\Admin\AppData\Local\Temp\f23baba313fea263a91462230af31755b31c40ec40e79b39b855712599246339.exe
          "C:\Users\Admin\AppData\Local\Temp\f23baba313fea263a91462230af31755b31c40ec40e79b39b855712599246339.exe"
          2⤵
            PID:3940
          • C:\Users\Admin\AppData\Local\Temp\f23baba313fea263a91462230af31755b31c40ec40e79b39b855712599246339.exe
            "C:\Users\Admin\AppData\Local\Temp\f23baba313fea263a91462230af31755b31c40ec40e79b39b855712599246339.exe"
            2⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1980

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_a2enijye.ys1.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • memory/1772-10-0x0000000008D80000-0x0000000008E1C000-memory.dmp

          Filesize

          624KB

        • memory/1772-1-0x0000000000550000-0x00000000005FC000-memory.dmp

          Filesize

          688KB

        • memory/1772-9-0x0000000006740000-0x00000000067C2000-memory.dmp

          Filesize

          520KB

        • memory/1772-4-0x0000000004FF0000-0x0000000004FFA000-memory.dmp

          Filesize

          40KB

        • memory/1772-5-0x0000000075390000-0x0000000075B40000-memory.dmp

          Filesize

          7.7MB

        • memory/1772-6-0x00000000066A0000-0x0000000006742000-memory.dmp

          Filesize

          648KB

        • memory/1772-7-0x0000000005420000-0x000000000543A000-memory.dmp

          Filesize

          104KB

        • memory/1772-8-0x00000000052B0000-0x00000000052C0000-memory.dmp

          Filesize

          64KB

        • memory/1772-3-0x0000000005070000-0x0000000005102000-memory.dmp

          Filesize

          584KB

        • memory/1772-2-0x0000000005580000-0x0000000005B24000-memory.dmp

          Filesize

          5.6MB

        • memory/1772-13-0x000000007539E000-0x000000007539F000-memory.dmp

          Filesize

          4KB

        • memory/1772-0-0x000000007539E000-0x000000007539F000-memory.dmp

          Filesize

          4KB

        • memory/1772-15-0x0000000075390000-0x0000000075B40000-memory.dmp

          Filesize

          7.7MB

        • memory/1980-14-0x0000000075390000-0x0000000075B40000-memory.dmp

          Filesize

          7.7MB

        • memory/1980-62-0x0000000075390000-0x0000000075B40000-memory.dmp

          Filesize

          7.7MB

        • memory/1980-36-0x00000000061B0000-0x0000000006200000-memory.dmp

          Filesize

          320KB

        • memory/1980-18-0x0000000005370000-0x00000000053D6000-memory.dmp

          Filesize

          408KB

        • memory/1980-28-0x0000000075390000-0x0000000075B40000-memory.dmp

          Filesize

          7.7MB

        • memory/1980-11-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/3644-20-0x0000000005A30000-0x0000000005A52000-memory.dmp

          Filesize

          136KB

        • memory/3644-49-0x00000000074B0000-0x0000000007553000-memory.dmp

          Filesize

          652KB

        • memory/3644-21-0x0000000005AD0000-0x0000000005B36000-memory.dmp

          Filesize

          408KB

        • memory/3644-19-0x00000000053B0000-0x00000000059D8000-memory.dmp

          Filesize

          6.2MB

        • memory/3644-30-0x0000000005C00000-0x0000000005F54000-memory.dmp

          Filesize

          3.3MB

        • memory/3644-34-0x0000000006150000-0x000000000616E000-memory.dmp

          Filesize

          120KB

        • memory/3644-35-0x0000000006320000-0x000000000636C000-memory.dmp

          Filesize

          304KB

        • memory/3644-17-0x0000000075390000-0x0000000075B40000-memory.dmp

          Filesize

          7.7MB

        • memory/3644-37-0x00000000068A0000-0x00000000068D2000-memory.dmp

          Filesize

          200KB

        • memory/3644-38-0x0000000071010000-0x000000007105C000-memory.dmp

          Filesize

          304KB

        • memory/3644-48-0x0000000006880000-0x000000000689E000-memory.dmp

          Filesize

          120KB

        • memory/3644-22-0x0000000075390000-0x0000000075B40000-memory.dmp

          Filesize

          7.7MB

        • memory/3644-50-0x0000000007C30000-0x00000000082AA000-memory.dmp

          Filesize

          6.5MB

        • memory/3644-51-0x00000000075F0000-0x000000000760A000-memory.dmp

          Filesize

          104KB

        • memory/3644-52-0x0000000007660000-0x000000000766A000-memory.dmp

          Filesize

          40KB

        • memory/3644-53-0x0000000007870000-0x0000000007906000-memory.dmp

          Filesize

          600KB

        • memory/3644-54-0x00000000077F0000-0x0000000007801000-memory.dmp

          Filesize

          68KB

        • memory/3644-55-0x0000000007820000-0x000000000782E000-memory.dmp

          Filesize

          56KB

        • memory/3644-56-0x0000000007830000-0x0000000007844000-memory.dmp

          Filesize

          80KB

        • memory/3644-57-0x0000000007930000-0x000000000794A000-memory.dmp

          Filesize

          104KB

        • memory/3644-58-0x0000000007910000-0x0000000007918000-memory.dmp

          Filesize

          32KB

        • memory/3644-61-0x0000000075390000-0x0000000075B40000-memory.dmp

          Filesize

          7.7MB

        • memory/3644-16-0x00000000029D0000-0x0000000002A06000-memory.dmp

          Filesize

          216KB