Analysis

  • max time kernel
    145s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-10-2023 14:41

General

  • Target

    NEAS.7e5e3c49e0bcb2e16b86e870f591feca75b0d7007ed5851ecdfb70fa3d06976cexe_JC.exe

  • Size

    678KB

  • MD5

    db82b1e54d378158c2873fd90f30880a

  • SHA1

    75d28d710180b899847f35de4857952cde5d97ba

  • SHA256

    7e5e3c49e0bcb2e16b86e870f591feca75b0d7007ed5851ecdfb70fa3d06976c

  • SHA512

    f9c8402cc418c9f9dbfec2b4ae6d5e583e2f89b4a663a079e2c2753b75cd54b553c1fb01b2e28f46661d69e7ba12e6f6b62edc0750bb92e6e9d14b7e2b5b84b8

  • SSDEEP

    12288:2iMl/jysa+SRohg0KbwQZvwFRQkFvUPaIONAqptrBm1k5Bfa4SliEv3:kLysa+SKeBnMGkFmaISjI1kjfuBv

Malware Config

Extracted

Family

agenttesla

C2

https://discordapp.com/api/webhooks/1151596988136181840/QdgulOKX9Onw_VaSQk6b3c5Sm7_Mt-0_huxqLUgO5ybBxQL_jiC6-2Afk2vAsJOZSANp

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
  • 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 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEAS.7e5e3c49e0bcb2e16b86e870f591feca75b0d7007ed5851ecdfb70fa3d06976cexe_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.7e5e3c49e0bcb2e16b86e870f591feca75b0d7007ed5851ecdfb70fa3d06976cexe_JC.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4448
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\TnYaBdvu.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4792
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TnYaBdvu" /XML "C:\Users\Admin\AppData\Local\Temp\tmp105.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1144
    • C:\Users\Admin\AppData\Local\Temp\NEAS.7e5e3c49e0bcb2e16b86e870f591feca75b0d7007ed5851ecdfb70fa3d06976cexe_JC.exe
      "C:\Users\Admin\AppData\Local\Temp\NEAS.7e5e3c49e0bcb2e16b86e870f591feca75b0d7007ed5851ecdfb70fa3d06976cexe_JC.exe"
      2⤵
        PID:212
      • C:\Users\Admin\AppData\Local\Temp\NEAS.7e5e3c49e0bcb2e16b86e870f591feca75b0d7007ed5851ecdfb70fa3d06976cexe_JC.exe
        "C:\Users\Admin\AppData\Local\Temp\NEAS.7e5e3c49e0bcb2e16b86e870f591feca75b0d7007ed5851ecdfb70fa3d06976cexe_JC.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:5104

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ffakjgjl.op2.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmp105.tmp

      Filesize

      1KB

      MD5

      4666b2a3fbcae4f80825d9cdf41d40c0

      SHA1

      070ba9b47d54b18eb103f38f558f89d589f715f6

      SHA256

      5a2242aeef0369b3d0c14825e00dad28f23ab8e609998dd9a155d45c981d9c4a

      SHA512

      8f4643096b7f9cbca3ccb2f4c2b81bc78713ffa9021f7eb8b74c8be6d2a021f5da8b1e5b16cfb21c258cd43b44f4a4ac679da9fc069c7086f9090b109d0b7213

    • memory/4448-6-0x0000000005680000-0x0000000005698000-memory.dmp

      Filesize

      96KB

    • memory/4448-3-0x0000000005200000-0x0000000005292000-memory.dmp

      Filesize

      584KB

    • memory/4448-4-0x0000000005470000-0x0000000005480000-memory.dmp

      Filesize

      64KB

    • memory/4448-5-0x00000000053A0000-0x00000000053AA000-memory.dmp

      Filesize

      40KB

    • memory/4448-24-0x00000000750D0000-0x0000000075880000-memory.dmp

      Filesize

      7.7MB

    • memory/4448-7-0x00000000750D0000-0x0000000075880000-memory.dmp

      Filesize

      7.7MB

    • memory/4448-8-0x00000000056A0000-0x00000000056B0000-memory.dmp

      Filesize

      64KB

    • memory/4448-9-0x0000000008240000-0x00000000082BE000-memory.dmp

      Filesize

      504KB

    • memory/4448-10-0x000000000A9D0000-0x000000000AA6C000-memory.dmp

      Filesize

      624KB

    • memory/4448-0-0x00000000750D0000-0x0000000075880000-memory.dmp

      Filesize

      7.7MB

    • memory/4448-2-0x00000000056D0000-0x0000000005C74000-memory.dmp

      Filesize

      5.6MB

    • memory/4448-1-0x0000000000750000-0x0000000000800000-memory.dmp

      Filesize

      704KB

    • memory/4792-33-0x0000000004AF0000-0x0000000004B56000-memory.dmp

      Filesize

      408KB

    • memory/4792-61-0x0000000002180000-0x0000000002190000-memory.dmp

      Filesize

      64KB

    • memory/4792-71-0x00000000750D0000-0x0000000075880000-memory.dmp

      Filesize

      7.7MB

    • memory/4792-21-0x0000000004C00000-0x0000000005228000-memory.dmp

      Filesize

      6.2MB

    • memory/4792-18-0x0000000002180000-0x0000000002190000-memory.dmp

      Filesize

      64KB

    • memory/4792-67-0x0000000007060000-0x0000000007068000-memory.dmp

      Filesize

      32KB

    • memory/4792-66-0x0000000007080000-0x000000000709A000-memory.dmp

      Filesize

      104KB

    • memory/4792-65-0x0000000006F80000-0x0000000006F94000-memory.dmp

      Filesize

      80KB

    • memory/4792-17-0x00000000750D0000-0x0000000075880000-memory.dmp

      Filesize

      7.7MB

    • memory/4792-32-0x0000000004A50000-0x0000000004A72000-memory.dmp

      Filesize

      136KB

    • memory/4792-15-0x0000000002110000-0x0000000002146000-memory.dmp

      Filesize

      216KB

    • memory/4792-38-0x0000000005550000-0x00000000058A4000-memory.dmp

      Filesize

      3.3MB

    • memory/4792-39-0x00000000059F0000-0x0000000005A0E000-memory.dmp

      Filesize

      120KB

    • memory/4792-40-0x0000000005A30000-0x0000000005A7C000-memory.dmp

      Filesize

      304KB

    • memory/4792-41-0x0000000002180000-0x0000000002190000-memory.dmp

      Filesize

      64KB

    • memory/4792-42-0x00000000069B0000-0x00000000069E2000-memory.dmp

      Filesize

      200KB

    • memory/4792-44-0x0000000070D50000-0x0000000070D9C000-memory.dmp

      Filesize

      304KB

    • memory/4792-64-0x0000000006F70000-0x0000000006F7E000-memory.dmp

      Filesize

      56KB

    • memory/4792-54-0x0000000005FC0000-0x0000000005FDE000-memory.dmp

      Filesize

      120KB

    • memory/4792-55-0x00000000069F0000-0x0000000006A93000-memory.dmp

      Filesize

      652KB

    • memory/4792-56-0x0000000007360000-0x00000000079DA000-memory.dmp

      Filesize

      6.5MB

    • memory/4792-57-0x0000000006D20000-0x0000000006D3A000-memory.dmp

      Filesize

      104KB

    • memory/4792-58-0x0000000006D90000-0x0000000006D9A000-memory.dmp

      Filesize

      40KB

    • memory/4792-59-0x00000000750D0000-0x0000000075880000-memory.dmp

      Filesize

      7.7MB

    • memory/4792-60-0x0000000006FC0000-0x0000000007056000-memory.dmp

      Filesize

      600KB

    • memory/4792-19-0x0000000002180000-0x0000000002190000-memory.dmp

      Filesize

      64KB

    • memory/4792-62-0x0000000006F40000-0x0000000006F51000-memory.dmp

      Filesize

      68KB

    • memory/4792-63-0x0000000002180000-0x0000000002190000-memory.dmp

      Filesize

      64KB

    • memory/5104-43-0x00000000066F0000-0x0000000006740000-memory.dmp

      Filesize

      320KB

    • memory/5104-26-0x00000000050A0000-0x0000000005106000-memory.dmp

      Filesize

      408KB

    • memory/5104-25-0x0000000004E00000-0x0000000004E10000-memory.dmp

      Filesize

      64KB

    • memory/5104-23-0x00000000750D0000-0x0000000075880000-memory.dmp

      Filesize

      7.7MB

    • memory/5104-68-0x00000000750D0000-0x0000000075880000-memory.dmp

      Filesize

      7.7MB

    • memory/5104-20-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/5104-72-0x0000000004E00000-0x0000000004E10000-memory.dmp

      Filesize

      64KB