Analysis

  • max time kernel
    135s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/05/2023, 10:25

General

  • Target

    epoDTL977.exe

  • Size

    735KB

  • MD5

    cbbed27bc3cfba04a905ed8c79a39475

  • SHA1

    08161535644583cc802a420f47132228a06924ae

  • SHA256

    cf599f4ac8687578eaf120368869e271c425962b9af352d6b206c9a238e8000d

  • SHA512

    ff64faa91f4d7daca9b702e5d52953c4852a67b5e076dd622791ef6bb80c771f716dea1ab5f85df3d860ccbb6a8f589ac01c96db1ce23434caaeb5f57bd9ab19

  • SSDEEP

    12288:Tqev53+XiAXs7rMmQBgWRS4NShawWieGZ5pnBl0LYldlzM+t:d5+X5uMmQBgWRlfiDpBlbPlQ8

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
  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\epoDTL977.exe
    "C:\Users\Admin\AppData\Local\Temp\epoDTL977.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4968
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\YHcSRzVpK.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:384
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YHcSRzVpK" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD031.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1908
    • C:\Users\Admin\AppData\Local\Temp\epoDTL977.exe
      "C:\Users\Admin\AppData\Local\Temp\epoDTL977.exe"
      2⤵
        PID:4196
      • C:\Users\Admin\AppData\Local\Temp\epoDTL977.exe
        "C:\Users\Admin\AppData\Local\Temp\epoDTL977.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:3840

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_pjhk32v5.kwm.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmpD031.tmp

      Filesize

      1KB

      MD5

      6a6356fb18aeb3dd93e93b5a925afa6b

      SHA1

      3dbf6d887d8fffbfa3092efdd5dafa4a1b239fad

      SHA256

      fc09df6cd4191d13203c511aa55f6e2e91f26d0ef6f7b435fc93c222ab276342

      SHA512

      9a9e4e388abbc5bf5e6a5fc18ffbd08dd93c71d9d5fceb94d98eb768c9c055ba50dca9ee2e14be2495a0207e9d2d6c1649b93e28d4c3f80f1e687993618d0035

    • memory/384-180-0x0000000008290000-0x000000000890A000-memory.dmp

      Filesize

      6.5MB

    • memory/384-165-0x00000000052E0000-0x00000000052F0000-memory.dmp

      Filesize

      64KB

    • memory/384-188-0x0000000007F60000-0x0000000007F68000-memory.dmp

      Filesize

      32KB

    • memory/384-187-0x0000000007F80000-0x0000000007F9A000-memory.dmp

      Filesize

      104KB

    • memory/384-186-0x0000000007E70000-0x0000000007E7E000-memory.dmp

      Filesize

      56KB

    • memory/384-144-0x0000000005330000-0x0000000005366000-memory.dmp

      Filesize

      216KB

    • memory/384-145-0x00000000052E0000-0x00000000052F0000-memory.dmp

      Filesize

      64KB

    • memory/384-184-0x0000000007EC0000-0x0000000007F56000-memory.dmp

      Filesize

      600KB

    • memory/384-164-0x0000000006940000-0x000000000695E000-memory.dmp

      Filesize

      120KB

    • memory/384-182-0x0000000007CB0000-0x0000000007CBA000-memory.dmp

      Filesize

      40KB

    • memory/384-181-0x0000000007C40000-0x0000000007C5A000-memory.dmp

      Filesize

      104KB

    • memory/384-151-0x0000000005920000-0x0000000005942000-memory.dmp

      Filesize

      136KB

    • memory/384-152-0x0000000006140000-0x00000000061A6000-memory.dmp

      Filesize

      408KB

    • memory/384-179-0x000000007F920000-0x000000007F930000-memory.dmp

      Filesize

      64KB

    • memory/384-178-0x0000000006EF0000-0x0000000006F0E000-memory.dmp

      Filesize

      120KB

    • memory/384-168-0x0000000070280000-0x00000000702CC000-memory.dmp

      Filesize

      304KB

    • memory/384-147-0x00000000059A0000-0x0000000005FC8000-memory.dmp

      Filesize

      6.2MB

    • memory/384-159-0x00000000052E0000-0x00000000052F0000-memory.dmp

      Filesize

      64KB

    • memory/384-167-0x0000000007B00000-0x0000000007B32000-memory.dmp

      Filesize

      200KB

    • memory/3840-148-0x0000000000400000-0x0000000000464000-memory.dmp

      Filesize

      400KB

    • memory/3840-191-0x00000000053E0000-0x00000000053F0000-memory.dmp

      Filesize

      64KB

    • memory/3840-183-0x0000000006400000-0x0000000006450000-memory.dmp

      Filesize

      320KB

    • memory/3840-158-0x00000000053E0000-0x00000000053F0000-memory.dmp

      Filesize

      64KB

    • memory/3840-150-0x00000000055C0000-0x0000000005626000-memory.dmp

      Filesize

      408KB

    • memory/3840-185-0x0000000006620000-0x00000000067E2000-memory.dmp

      Filesize

      1.8MB

    • memory/4968-137-0x0000000005810000-0x000000000581A000-memory.dmp

      Filesize

      40KB

    • memory/4968-133-0x0000000000CF0000-0x0000000000DAE000-memory.dmp

      Filesize

      760KB

    • memory/4968-135-0x0000000005750000-0x00000000057E2000-memory.dmp

      Filesize

      584KB

    • memory/4968-139-0x0000000001720000-0x00000000017BC000-memory.dmp

      Filesize

      624KB

    • memory/4968-138-0x00000000056E0000-0x00000000056F0000-memory.dmp

      Filesize

      64KB

    • memory/4968-134-0x0000000005E10000-0x00000000063B4000-memory.dmp

      Filesize

      5.6MB

    • memory/4968-136-0x00000000056E0000-0x00000000056F0000-memory.dmp

      Filesize

      64KB