Analysis

  • max time kernel
    145s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-12-2023 17:20

General

  • Target

    Revise copy.exe

  • Size

    650KB

  • MD5

    c64c2a89d124e9185d312b3f880b31d9

  • SHA1

    cb98b08b3954f8c596762a9d571006bc077612e0

  • SHA256

    8dd68257e8d07b2e0d25da886cdb7cb487085b99a469984369d486812596ea12

  • SHA512

    92c0be639e432691a58c220e015987f77755703c4f936480befd3c035ff4386ad20734a936d21921c3fc5bfa3cc4e1be6288756fc24e10147305621d34bbb472

  • SSDEEP

    12288:iq5nF8ME6jD/GYVZBzN0SeawOHlB+GrgetMtZeF3KKprWeb25LfYOghi:iqPtD/Gez03awaDrgeWtZeNr6eaLQOu

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

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

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Revise copy.exe
    "C:\Users\Admin\AppData\Local\Temp\Revise copy.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4716
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\yvygyKkUYqKa.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1400
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yvygyKkUYqKa" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8BE4.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2520
    • C:\Users\Admin\AppData\Local\Temp\Revise copy.exe
      "C:\Users\Admin\AppData\Local\Temp\Revise copy.exe"
      2⤵
        PID:4540
      • C:\Users\Admin\AppData\Local\Temp\Revise copy.exe
        "C:\Users\Admin\AppData\Local\Temp\Revise copy.exe"
        2⤵
          PID:216
        • C:\Users\Admin\AppData\Local\Temp\Revise copy.exe
          "C:\Users\Admin\AppData\Local\Temp\Revise copy.exe"
          2⤵
          • Accesses Microsoft Outlook profiles
          • Adds Run key to start application
          • Suspicious use of AdjustPrivilegeToken
          • outlook_office_path
          • outlook_win_path
          PID:3960

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fjqomszi.3nm.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\Users\Admin\AppData\Local\Temp\tmp8BE4.tmp

        Filesize

        1KB

        MD5

        ca144435d0649b7f95509378cdee0a61

        SHA1

        1e728a871be2cad5e18ed2a535422c0d308399ad

        SHA256

        eb6323a0690062d457df0db235dd0498573cf2e24f9422993cb625929d421b54

        SHA512

        e7158407c9531164385ab6e8ad33b3a961b1293c79347e83fa5dd0609f28b92a9594452c4e9794b590f0f0c7d70dacb5d50525c47e8bdbace651479e97f29300

      • memory/1400-58-0x0000000007790000-0x000000000779A000-memory.dmp

        Filesize

        40KB

      • memory/1400-59-0x00000000079A0000-0x0000000007A36000-memory.dmp

        Filesize

        600KB

      • memory/1400-37-0x0000000005F30000-0x0000000006284000-memory.dmp

        Filesize

        3.3MB

      • memory/1400-68-0x0000000075180000-0x0000000075930000-memory.dmp

        Filesize

        7.7MB

      • memory/1400-65-0x0000000007A40000-0x0000000007A48000-memory.dmp

        Filesize

        32KB

      • memory/1400-64-0x0000000007A60000-0x0000000007A7A000-memory.dmp

        Filesize

        104KB

      • memory/1400-63-0x0000000007960000-0x0000000007974000-memory.dmp

        Filesize

        80KB

      • memory/1400-62-0x0000000007950000-0x000000000795E000-memory.dmp

        Filesize

        56KB

      • memory/1400-60-0x0000000007920000-0x0000000007931000-memory.dmp

        Filesize

        68KB

      • memory/1400-15-0x0000000001320000-0x0000000001356000-memory.dmp

        Filesize

        216KB

      • memory/1400-18-0x0000000002BB0000-0x0000000002BC0000-memory.dmp

        Filesize

        64KB

      • memory/1400-17-0x0000000005680000-0x0000000005CA8000-memory.dmp

        Filesize

        6.2MB

      • memory/1400-16-0x0000000075180000-0x0000000075930000-memory.dmp

        Filesize

        7.7MB

      • memory/1400-41-0x0000000006440000-0x000000000648C000-memory.dmp

        Filesize

        304KB

      • memory/1400-57-0x0000000007720000-0x000000000773A000-memory.dmp

        Filesize

        104KB

      • memory/1400-22-0x0000000005640000-0x0000000005662000-memory.dmp

        Filesize

        136KB

      • memory/1400-56-0x0000000007D60000-0x00000000083DA000-memory.dmp

        Filesize

        6.5MB

      • memory/1400-55-0x0000000007620000-0x00000000076C3000-memory.dmp

        Filesize

        652KB

      • memory/1400-29-0x0000000005D40000-0x0000000005DA6000-memory.dmp

        Filesize

        408KB

      • memory/1400-54-0x00000000069A0000-0x00000000069BE000-memory.dmp

        Filesize

        120KB

      • memory/1400-30-0x0000000005DB0000-0x0000000005E16000-memory.dmp

        Filesize

        408KB

      • memory/1400-44-0x00000000759E0000-0x0000000075A2C000-memory.dmp

        Filesize

        304KB

      • memory/1400-42-0x00000000069C0000-0x00000000069F2000-memory.dmp

        Filesize

        200KB

      • memory/1400-43-0x000000007F320000-0x000000007F330000-memory.dmp

        Filesize

        64KB

      • memory/1400-21-0x0000000002BB0000-0x0000000002BC0000-memory.dmp

        Filesize

        64KB

      • memory/1400-40-0x00000000063F0000-0x000000000640E000-memory.dmp

        Filesize

        120KB

      • memory/3960-71-0x0000000075180000-0x0000000075930000-memory.dmp

        Filesize

        7.7MB

      • memory/3960-69-0x0000000006960000-0x00000000069B0000-memory.dmp

        Filesize

        320KB

      • memory/3960-38-0x0000000075180000-0x0000000075930000-memory.dmp

        Filesize

        7.7MB

      • memory/3960-72-0x0000000004EF0000-0x0000000004F00000-memory.dmp

        Filesize

        64KB

      • memory/3960-28-0x0000000000400000-0x0000000000430000-memory.dmp

        Filesize

        192KB

      • memory/3960-70-0x0000000006B80000-0x0000000006D42000-memory.dmp

        Filesize

        1.8MB

      • memory/4716-2-0x0000000005C40000-0x00000000061E4000-memory.dmp

        Filesize

        5.6MB

      • memory/4716-7-0x0000000005A20000-0x0000000005A28000-memory.dmp

        Filesize

        32KB

      • memory/4716-0-0x0000000000B60000-0x0000000000C08000-memory.dmp

        Filesize

        672KB

      • memory/4716-3-0x00000000055D0000-0x0000000005662000-memory.dmp

        Filesize

        584KB

      • memory/4716-10-0x0000000006A30000-0x0000000006ACC000-memory.dmp

        Filesize

        624KB

      • memory/4716-9-0x0000000006B80000-0x0000000006BEA000-memory.dmp

        Filesize

        424KB

      • memory/4716-8-0x0000000005A30000-0x0000000005A3A000-memory.dmp

        Filesize

        40KB

      • memory/4716-1-0x0000000075180000-0x0000000075930000-memory.dmp

        Filesize

        7.7MB

      • memory/4716-6-0x0000000005A00000-0x0000000005A18000-memory.dmp

        Filesize

        96KB

      • memory/4716-5-0x00000000056A0000-0x00000000056AA000-memory.dmp

        Filesize

        40KB

      • memory/4716-39-0x0000000075180000-0x0000000075930000-memory.dmp

        Filesize

        7.7MB

      • memory/4716-20-0x0000000075180000-0x0000000075930000-memory.dmp

        Filesize

        7.7MB

      • memory/4716-4-0x0000000005720000-0x0000000005730000-memory.dmp

        Filesize

        64KB

      • memory/4716-35-0x0000000005720000-0x0000000005730000-memory.dmp

        Filesize

        64KB