Resubmissions

03-04-2023 18:17

230403-ww794aab7s 8

03-04-2023 18:16

230403-wwe9baab6x 10

03-04-2023 14:33

230403-rwvlsafc83 10

Analysis

  • max time kernel
    90s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    03-04-2023 14:33

General

  • Target

    DOOR-MET_23045112.exe

  • Size

    658KB

  • MD5

    f4a6d37fefe83f89c2f6b1f253bb9c2c

  • SHA1

    58ac04dfcc1f0bbf7c41181102f9371a67cda336

  • SHA256

    788e583861d0022304a8013dcf66be0e312402d6154f5a7788f1d67518583c7e

  • SHA512

    37f6a03d1356aa442ddc61c230549282fa5f5ce8d3aac4792e26cbbb51f75090b0ab8a0e9139304ee6b89530662cf2ee24033573b80f8b81a27fbcf6ee220e0f

  • SSDEEP

    12288:q6okzy/q4JM4Q2lQfzwcIDNEkxtdBo0hoay47DKWMH29yoNSDA:Sku/6gQMc6uqhrqW/N

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DOOR-MET_23045112.exe
    "C:\Users\Admin\AppData\Local\Temp\DOOR-MET_23045112.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:912
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2040

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/912-54-0x00000000011A0000-0x000000000124A000-memory.dmp

    Filesize

    680KB

  • memory/912-55-0x0000000004E20000-0x0000000004E60000-memory.dmp

    Filesize

    256KB

  • memory/912-56-0x0000000000550000-0x000000000059A000-memory.dmp

    Filesize

    296KB

  • memory/912-57-0x00000000004E0000-0x00000000004F8000-memory.dmp

    Filesize

    96KB

  • memory/912-58-0x0000000004E20000-0x0000000004E60000-memory.dmp

    Filesize

    256KB

  • memory/912-59-0x0000000004E20000-0x0000000004E60000-memory.dmp

    Filesize

    256KB

  • memory/912-60-0x0000000004E20000-0x0000000004E60000-memory.dmp

    Filesize

    256KB

  • memory/912-61-0x0000000004E20000-0x0000000004E60000-memory.dmp

    Filesize

    256KB

  • memory/912-62-0x0000000004E20000-0x0000000004E60000-memory.dmp

    Filesize

    256KB

  • memory/912-63-0x0000000000670000-0x000000000068A000-memory.dmp

    Filesize

    104KB

  • memory/912-64-0x00000000005C0000-0x00000000005C6000-memory.dmp

    Filesize

    24KB

  • memory/2040-65-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2040-66-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2040-67-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2040-68-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2040-69-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2040-70-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2040-71-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2040-72-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2040-73-0x0000000000A80000-0x0000000000AC0000-memory.dmp

    Filesize

    256KB

  • memory/2040-74-0x0000000000A80000-0x0000000000AC0000-memory.dmp

    Filesize

    256KB