Analysis

  • max time kernel
    138s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    20-10-2021 12:03

General

  • Target

    Swift copy.exe

  • Size

    436KB

  • MD5

    27c466c70e60445b429623de8101a6d5

  • SHA1

    f1fd7e7fbdcfd7deddd7426cf56dfe2218c793b2

  • SHA256

    a4481204cfad76211d499d418edb29b8d1fb33910b97de5dac0ead7258df4064

  • SHA512

    2496f0e97c67384670b2800ba5fd9f005921594aa9c55ccc9e266cfb9cb58874542f1b818e8e433e79c83c0c98ba44806e8abc231d2b9bce7efac34ea39afa77

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.ekdantlab.co.in
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    muruga@123

Signatures

  • AgentTesla

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

  • AgentTesla Payload 5 IoCs
  • Drops file in Drivers directory 1 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
  • Enumerates physical storage devices 1 TTPs

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

  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Swift copy.exe
    "C:\Users\Admin\AppData\Local\Temp\Swift copy.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2032
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Swift copy.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:296
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tFFJSJku" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCCB1.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1464
    • C:\Users\Admin\AppData\Local\Temp\Swift copy.exe
      "C:\Users\Admin\AppData\Local\Temp\Swift copy.exe"
      2⤵
      • Drops file in Drivers directory
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:532

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/296-59-0x0000000000000000-mapping.dmp

  • memory/296-73-0x0000000002402000-0x0000000002404000-memory.dmp

    Filesize

    8KB

  • memory/296-70-0x0000000002400000-0x0000000002401000-memory.dmp

    Filesize

    4KB

  • memory/296-71-0x0000000002401000-0x0000000002402000-memory.dmp

    Filesize

    4KB

  • memory/532-67-0x00000000004376FE-mapping.dmp

  • memory/532-66-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/532-74-0x0000000004A71000-0x0000000004A72000-memory.dmp

    Filesize

    4KB

  • memory/532-62-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/532-63-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/532-64-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/532-65-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/532-72-0x0000000004A70000-0x0000000004A71000-memory.dmp

    Filesize

    4KB

  • memory/532-68-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1464-61-0x0000000000000000-mapping.dmp

  • memory/2032-53-0x0000000000B30000-0x0000000000B31000-memory.dmp

    Filesize

    4KB

  • memory/2032-57-0x00000000007D0000-0x00000000007D7000-memory.dmp

    Filesize

    28KB

  • memory/2032-56-0x00000000005D0000-0x00000000005D1000-memory.dmp

    Filesize

    4KB

  • memory/2032-58-0x0000000004C80000-0x0000000004CD8000-memory.dmp

    Filesize

    352KB

  • memory/2032-55-0x0000000075871000-0x0000000075873000-memory.dmp

    Filesize

    8KB