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Analysis

  • max time kernel
    143s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    13/10/2021, 17:09

General

  • Target

    SecuriteInfo.com.BackDoor.SpyBotNET.25.23695.27244.exe

  • Size

    551KB

  • MD5

    a665b705b9381b33aaa9e307fe340af7

  • SHA1

    a6fba4f009921b1de9d524047bcb7fa0e571a116

  • SHA256

    dc07322ef1652695b5e85bfd5d6da8c5b6c311d26ff13eb18a390cd4b7232203

  • SHA512

    b7e7ff96dce12935c71b6e6b6fc74652cd08725d8de29a91e35b0d4f8f351d14f371e2d48a3ab5fe733003764af09b6be6dc6d943112b596fa2b09a7638bbaee

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.croatiahunt.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    VilaVrgade852

Signatures

  • AgentTesla

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

  • AgentTesla Payload 5 IoCs
  • 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
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.SpyBotNET.25.23695.27244.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.SpyBotNET.25.23695.27244.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1596
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.SpyBotNET.25.23695.27244.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.SpyBotNET.25.23695.27244.exe"
      2⤵
        PID:1444
      • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.SpyBotNET.25.23695.27244.exe
        "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.SpyBotNET.25.23695.27244.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:1660

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1596-53-0x00000000008E0000-0x00000000008E1000-memory.dmp

      Filesize

      4KB

    • memory/1596-55-0x00000000757B1000-0x00000000757B3000-memory.dmp

      Filesize

      8KB

    • memory/1596-56-0x0000000004400000-0x0000000004401000-memory.dmp

      Filesize

      4KB

    • memory/1596-57-0x0000000000450000-0x0000000000455000-memory.dmp

      Filesize

      20KB

    • memory/1596-58-0x0000000004E20000-0x0000000004E78000-memory.dmp

      Filesize

      352KB

    • memory/1660-59-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/1660-60-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/1660-61-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/1660-62-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/1660-63-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/1660-65-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/1660-67-0x0000000004680000-0x0000000004681000-memory.dmp

      Filesize

      4KB

    • memory/1660-68-0x0000000004681000-0x0000000004682000-memory.dmp

      Filesize

      4KB