Analysis

  • max time kernel
    122s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    03/04/2024, 11:15

General

  • Target

    yWQK3JWrMiYdSNG.exe

  • Size

    632KB

  • MD5

    6ceddbf6cce1a61048b8c9f2f42108c5

  • SHA1

    a9aadd0abed5397ae62f6095e5b05f5d5eb9055f

  • SHA256

    105c79d054029dcf3d38c5ba526dc7c111cc2e2e6fb2555a88c0820a6ba9eb52

  • SHA512

    e9f733cad22fbb711ea029039aefe799c6172e81b275f93c8699d912e289e47ee93b1282f005e941780284ad74359d85aa20d583754eb39c11581ab8c090e1b7

  • SSDEEP

    12288:lZcsd8531D0sDjNvu56pw/XVyBcYZkYeUZJouWPZzQvX/Lgf2LWl:ltK1D0+NW5MeVyB8LGJouq6//Ef2al

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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).

  • 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\yWQK3JWrMiYdSNG.exe
    "C:\Users\Admin\AppData\Local\Temp\yWQK3JWrMiYdSNG.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1252
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\SVxgdVWqIPqwco.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2636
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SVxgdVWqIPqwco" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8FB2.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2060
    • C:\Users\Admin\AppData\Local\Temp\yWQK3JWrMiYdSNG.exe
      "C:\Users\Admin\AppData\Local\Temp\yWQK3JWrMiYdSNG.exe"
      2⤵
        PID:2460
      • C:\Users\Admin\AppData\Local\Temp\yWQK3JWrMiYdSNG.exe
        "C:\Users\Admin\AppData\Local\Temp\yWQK3JWrMiYdSNG.exe"
        2⤵
          PID:2456
        • C:\Users\Admin\AppData\Local\Temp\yWQK3JWrMiYdSNG.exe
          "C:\Users\Admin\AppData\Local\Temp\yWQK3JWrMiYdSNG.exe"
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2996

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • C:\Users\Admin\AppData\Local\Temp\tmp8FB2.tmp

              Filesize

              1KB

              MD5

              1547d3cbe01b82f8c2ca58d0a5302868

              SHA1

              9a0db17d04d38cb61ad11e6f182e92802e2d35a0

              SHA256

              f7214cb3a263e3998d7a69aa14957358877da20cccd97cf1553c472bdce0aa07

              SHA512

              f488b754c48743cd619820b2e5cf87d07f26c39b5fc6f9ff2973918d36c09731cb877d7ef43aefa32701854be01a1aefe156e966e955a90c4dbe9a10c920a542

            • memory/1252-25-0x0000000074640000-0x0000000074D2E000-memory.dmp

              Filesize

              6.9MB

            • memory/1252-1-0x0000000074640000-0x0000000074D2E000-memory.dmp

              Filesize

              6.9MB

            • memory/1252-2-0x00000000047D0000-0x0000000004810000-memory.dmp

              Filesize

              256KB

            • memory/1252-3-0x0000000000370000-0x0000000000384000-memory.dmp

              Filesize

              80KB

            • memory/1252-4-0x00000000004C0000-0x00000000004CA000-memory.dmp

              Filesize

              40KB

            • memory/1252-5-0x00000000004D0000-0x00000000004DC000-memory.dmp

              Filesize

              48KB

            • memory/1252-6-0x0000000004C00000-0x0000000004C82000-memory.dmp

              Filesize

              520KB

            • memory/1252-0-0x0000000001130000-0x00000000011D4000-memory.dmp

              Filesize

              656KB

            • memory/2636-27-0x000000006EB70000-0x000000006F11B000-memory.dmp

              Filesize

              5.7MB

            • memory/2636-28-0x00000000023F0000-0x0000000002430000-memory.dmp

              Filesize

              256KB

            • memory/2636-30-0x000000006EB70000-0x000000006F11B000-memory.dmp

              Filesize

              5.7MB

            • memory/2636-29-0x000000006EB70000-0x000000006F11B000-memory.dmp

              Filesize

              5.7MB

            • memory/2996-20-0x0000000000400000-0x0000000000440000-memory.dmp

              Filesize

              256KB

            • memory/2996-22-0x0000000000400000-0x0000000000440000-memory.dmp

              Filesize

              256KB

            • memory/2996-24-0x0000000000400000-0x0000000000440000-memory.dmp

              Filesize

              256KB

            • memory/2996-15-0x0000000000400000-0x0000000000440000-memory.dmp

              Filesize

              256KB

            • memory/2996-26-0x0000000074640000-0x0000000074D2E000-memory.dmp

              Filesize

              6.9MB

            • memory/2996-12-0x0000000000400000-0x0000000000440000-memory.dmp

              Filesize

              256KB

            • memory/2996-16-0x0000000000400000-0x0000000000440000-memory.dmp

              Filesize

              256KB

            • memory/2996-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

              Filesize

              4KB

            • memory/2996-17-0x0000000000400000-0x0000000000440000-memory.dmp

              Filesize

              256KB

            • memory/2996-31-0x0000000074640000-0x0000000074D2E000-memory.dmp

              Filesize

              6.9MB

            • memory/2996-32-0x0000000004E40000-0x0000000004E80000-memory.dmp

              Filesize

              256KB