Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    03/04/2024, 11:20

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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\yWQK3JWrMiYdSNG.exe
    "C:\Users\Admin\AppData\Local\Temp\yWQK3JWrMiYdSNG.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1956
    • 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:2672
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SVxgdVWqIPqwco" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3A23.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3028
    • 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:2628

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\tmp3A23.tmp

          Filesize

          1KB

          MD5

          3b3fd0bf1ce63b96d762bb061353c1b0

          SHA1

          6779808da1826487e2043a5033f34e4c35c23680

          SHA256

          e5866608eb75b7be96ad0374968324501c2c9c1cb0af8f9eb1047c1484e068e1

          SHA512

          7a174e5ba2ca313ba7e1a523efa463bbbbfba338076ea74ad7adc5d48b5465ed8d017e75a672982afa0254e1c102452d43cefa654113ab8c7b60ddd2133ffd9e

        • memory/1956-0-0x0000000000F40000-0x0000000000FE4000-memory.dmp

          Filesize

          656KB

        • memory/1956-1-0x0000000074520000-0x0000000074C0E000-memory.dmp

          Filesize

          6.9MB

        • memory/1956-2-0x0000000000380000-0x00000000003C0000-memory.dmp

          Filesize

          256KB

        • memory/1956-3-0x0000000000310000-0x0000000000324000-memory.dmp

          Filesize

          80KB

        • memory/1956-4-0x00000000003C0000-0x00000000003CA000-memory.dmp

          Filesize

          40KB

        • memory/1956-5-0x0000000000410000-0x000000000041C000-memory.dmp

          Filesize

          48KB

        • memory/1956-6-0x0000000004E00000-0x0000000004E82000-memory.dmp

          Filesize

          520KB

        • memory/1956-22-0x0000000074520000-0x0000000074C0E000-memory.dmp

          Filesize

          6.9MB

        • memory/2628-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2628-25-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2628-17-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2628-15-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2628-20-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2628-14-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2628-23-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2628-16-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2628-33-0x0000000004440000-0x0000000004480000-memory.dmp

          Filesize

          256KB

        • memory/2628-32-0x0000000072FE0000-0x00000000736CE000-memory.dmp

          Filesize

          6.9MB

        • memory/2628-30-0x0000000004440000-0x0000000004480000-memory.dmp

          Filesize

          256KB

        • memory/2628-29-0x0000000072FE0000-0x00000000736CE000-memory.dmp

          Filesize

          6.9MB

        • memory/2672-28-0x0000000002C00000-0x0000000002C40000-memory.dmp

          Filesize

          256KB

        • memory/2672-31-0x000000006E870000-0x000000006EE1B000-memory.dmp

          Filesize

          5.7MB

        • memory/2672-27-0x000000006E870000-0x000000006EE1B000-memory.dmp

          Filesize

          5.7MB

        • memory/2672-26-0x000000006E870000-0x000000006EE1B000-memory.dmp

          Filesize

          5.7MB