Analysis

  • max time kernel
    71s
  • max time network
    58s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    28/09/2022, 08:13

General

  • Target
    SecuriteInfo.com.IL.Trojan.MSILZilla.23263.25992.20476.exe
  • Size 16KB
  • Sample220928-j4earsfdc4
  • SHA256 a2a3fd4b8c4a6ced54de6a596a9cd01b974ecd40fa7b016da293a1fb267efd0a
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

C2
  • https://api.telegram.org/bot5686390670:AAH21dU8FukGdd0mBx05kATfrHXzwOBBg1Q/

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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.IL.Trojan.MSILZilla.23263.25992.20476.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.IL.Trojan.MSILZilla.23263.25992.20476.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1912
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMgAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1348
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.IL.Trojan.MSILZilla.23263.25992.20476.exe
      C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.IL.Trojan.MSILZilla.23263.25992.20476.exe
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:576

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/576-68-0x0000000000400000-0x000000000043A000-memory.dmp

        memory/576-66-0x0000000000400000-0x000000000043A000-memory.dmp

        memory/576-73-0x0000000000400000-0x000000000043A000-memory.dmp

        memory/576-71-0x0000000000400000-0x000000000043A000-memory.dmp

        memory/576-67-0x0000000000400000-0x000000000043A000-memory.dmp

        memory/576-63-0x0000000000400000-0x000000000043A000-memory.dmp

        memory/576-64-0x0000000000400000-0x000000000043A000-memory.dmp

        memory/1348-62-0x000000006FC10000-0x00000000701BB000-memory.dmp

        memory/1348-61-0x000000006FC10000-0x00000000701BB000-memory.dmp

        memory/1348-60-0x000000006FC10000-0x00000000701BB000-memory.dmp

        memory/1912-55-0x00000000763F1000-0x00000000763F3000-memory.dmp

        memory/1912-54-0x00000000010E0000-0x00000000010EA000-memory.dmp

        memory/1912-57-0x00000000054A0000-0x0000000005532000-memory.dmp

        memory/1912-56-0x0000000005120000-0x00000000051D6000-memory.dmp